BLOSSOM CHEER Global Door & Window Engineering Video Library

Site Focus

This video targetslarge-scale window/door contractors and high-precision field installersto resolve core industry pain points such as air-tightness failure, heavy sliding resistance, and transmission jamming ofNarrow-Stile Lift and Slide Doorscaused by minor track horizontal deviations or misaligned lift hardware transmission ratios in ultra-long and ultra-heavy openings. The content focuses on the precise horizontal securing of theembedded compression-resistant heavy-duty bottom track system, the slot fastening ofmulti-point lift interlocking hardware, and the vertical anti-sway mounting of multiple door leaves. Through1:1 empirical footage, it eliminates installers' cognitive blind spots regarding complex lift-lever mechanisms, ensuring that B2B project delivery meets industrial standards ofzero-resistance sliding under high loads and 100% airtight/soundproof locking upon downward pressure.

Engineering Detail

Heavy-Duty Sliding Track Leveling & Securing:Execute laser leveling on the floor base, utilize positioning shims and expansion anchors to horizontally secure the multi-layerlift and slide aluminum top and bottom rails, ensuring zero deflection.

Heavy-Duty Lift Transmission Roller Assembly:Mechanically snap thelift roller driver assembly and interlocking linkage rodsinto the bottom profile slot of the heavy door leaf, executing anti-loosening mechanical locking via specialized shear-resistant screws.

Multi-Layer Modified Gasket Embedding:Press high-elasticitysealing rubber gaskets and weather stripsinto the reserved tracks of the aluminum profiles sequentially, executing adhesive injection and anti-aging sealing at outer frame joints.

Layered Door Leaf Vertical Hoisting & Tracking:Lift the aluminum door leaves using heavy-duty suction cup tools, and sequentially drop them into their respectivehigh-precision lift-and-slide tracksstrictly following the spatial sequence from inside to outside.

Lift-Lever Handle Hardware Linkage Adjustment:Assemble the large-scalelift lever handle and multi-point lock kitsinto the reserved slot of the main door leaf, adjusting the linkage stroke to ensure rotating the handle mechanically triggers the vertical rise and fall of the bottom rollers.

Multi-Dimensional Airtight Block & Anti-Tilt Buffer Tuning:Installwind-resistant blocks and anti-sway guide rollersat the interlocking profile junctions, rotate the roller micro-adjustment bolts to calibrate door clearances, and perform long-cycle repeated sliding self-checks.

Result Validated

Achieve the structured physical closed-loop integration of the multi-functional narrow-stile lift and slide door. Driven by thelever transmission system, the door leaves achieve a physical transition state of "lifting to slide effortlessly, and pressing down to lock with absolute sealing", withzero-drift and zero-swaymulti-track operation, ensuring sealing indicators 100% meet the delivery standards of heavy-duty sliding door engineering.

Site Focus

This video targets window and door contractors and field installers to resolve the technical bottlenecks in multi-track assembly and interlocking mechanism adjustment of Three-Leaf Interlocking Aluminum Sliding Doors. It focuses on the horizontal fixing of top and bottom triple-tracks, the snap-in installation of interlocking hardware, and the anti-sway mounting of multiple door leaves. Through 1:1 empirical footage, it eliminates installers' cognitive gaps regarding misalignment, friction, and jamming of multi-leaf sliding doors, ensuring that B2B project delivery meets industrial standards of zero-resistance sliding and synchronized interlocking.

Engineering Detail

Interlocking Track Fixing: Measure and position at the top header and floor, secure the triple-track aluminum top and bottom rails with screws to ensure flatness.

Interlocking Hardware Assembly: Embed interlocking blocks, buffers, and roller assemblies into the sides and top frames of the aluminum door leaves, followed by mechanical tightening.

Door Leaf Layered Mounting: Mount the three aluminum door leaves sequentially into their respective three independent track layers, ensuring equal spacing.

Mechanism Interlocking: Adjust the physical interlocking interlocking hooks/catches between door leaves, ensuring the first leaf synchronized-pulls the subsequent two leaves smoothly.

Balance & Smoothness Micro-Tuning: Adjust the physical height bolts of the bottom rollers to correct leaf verticality, completing the anti-sway and synchronized three-leaf interlocking test.

Result Validated

Completed the structural closed-loop assembly of the Three-Leaf Interlocking Aluminum Sliding Door. The system achieves seamless interlocking, smooth sliding, and precise overlapping of the three door leaves on independent tracks, with track and anti-sway mechanical structures 100% meeting high-quality physical delivery status.

Site Focus

This video targetssmart home contractors, property managers, andend-usersto resolve technical pain points such as master authority lockout, credential registration failure, and device offline status caused by unfamiliarity with menu logic during the initial delivery or permission modification of theE29 Smart Lock. The content focuses onlocal keypad menu triggering, biometric data enrollment, and thedigital configuration of security parameters. Through1:1 empirical footage demonstration, it eliminates users' cognitive blind spots regarding multi-functional electronic lock programming, ensuring that B2B projects achieve standardized turnkey operations with strict permission isolation, split-second fingerprint/card response, and zero-fault high-security system operation upon delivery.

Engineering Detail

System Initialization & Menu Wake-Up:Under powered status, tap the touch keypad to activate the screen, and input theinitial master command or physical key combinationto enter the master programming mode.

Master Password Security Modification:Execute the administrator settings menu, enter ahigh-strength customized digital string, and press the "#" key to confirm, completing the physical overwriting of the default master password.

Multi-Point Biometric Fingerprint Enrollment:Trigger the fingerprint addition program, press the finger vertically onto thesemiconductor fingerprint sensor, and perform multiple consecutive physical presses for multi-dimensional feature extraction until the system prompts successful registration.

Encrypted IC Card & User Password Addition:Open the card/password configuration link, place the13.56MHz encrypted IC cardnear the induction zone for radio frequency identification coupling, or directly key in the user digital password to complete physical permission binding.

Digital Configuration Self-Check:Calibrate underlying parameters such as volume adjustment and automatic locking time delay via the local keypad, observingLED status indicators and voice promptsto complete the functional self-check loop.

Result Validated

Achieve the physical configuration of core management permissions and unlocking credentials for theE29 Smart Lock. The device reaches thedata-ready state, master password isolation is fully validated, and the multi-modal recognition response speed for fingerprints, IC cards, and digital passwords reaches<= 0.5 seconds, ensuring the electronic control system fully meets the physical delivery standards of high-security intelligent engineering.

Technical Index

Model overall dimension: 360 x 75 mm

Power supply: 4.5-6.5 V (4 dry batteries)

Typical static current: < 50 uA

Working current: < 250 mA

Recognition false rate: <= 0.00004%

Operating temperature: -10 C to 60 C

Relative humidity: 20%-93%

Low voltage alarm: lower than 4.8 V

Total capacity: 300 groups

Password capacity: <= 200 groups

Fingerprint capacity: <= 100 groups

Card capacity: <= 200 groups

Wireless network: 2.4 GHz Wi-Fi only

Emergency power interface: USB charging port

Keypad lockout time: keypad locked for 1 minute after 5 wrong password attempts

Automatic exit time: no operation for more than 12 seconds

Site Focus

Addresses physical positioning challenges for Model AK03 (BC2262) in 40-100mm door thickness environments. It focuses on the logic path of the 12-pin signal cable and structural securing of the 24-240mm lock body, providing standardized delivery evidence for developers and contractors to ensure the physical reliability of the 3D face recognition hardware circuit.

Engineering Detail

Lock Body Installation: Embed the 24-240mm aluminum alloy lock body into the slot and tighten screws.

Connector Assembly: Install the drive spindle and connecting studs to establish internal and external physical links.

Cable Coupling: Guide the signal cable through the door hole to complete the coupling with the rear PCB interface.

Power Access: Insert the 7.4V-8.4V lithium battery to confirm system cold start.

Result Validated

Completed Model AK03 hardware assembly; the system enters the 7-in-1 function (3D Face, Fingerprint, Password, Card, Key, Palm print, Tuya WIFI) readiness state.

Technical Index

Model: 430mm*55mm

Standard Lock Body: 24-240mm

Working Voltage: 7.4V-8.4V

Suitable For Door Thickness: 40-100mm

Material: Aluminium Alloy

Battery: Lithium Battery

Emergency Supply: Type-C

Site Focus

This video provides a standardized demonstration for professional installers on Pivot Wooden Door assembly. It addresses challenges in pivot centerline positioning and heavy-door mounting. By showcasing the coordination between the embedded base and top connectors, it ensures verticality and smoothness in B2B project delivery. Content is based on actual steps, providing a digital alignment reference for engineering training.

Engineering Detail

Base installation: install the circular pivot base at the preset floor position and lock the screws.

Hardware integration: slot the top and bottom of the wooden door to embed pivot shaft components.

Top receiver securing: install the metal receiving slot at the corresponding position on the frame header.

Physical mounting: align the door panel with the floor base and top support using the locating pin principle.

Functional check: optimize gaps via adjustment screws and perform a 180-degree opening test.

Result Validated

Completed the hardware loop installation for the Pivot Wooden Door. Achieved precise rotation on the preset axis, ensuring uniform gap distribution and meeting high standards for heavy door physical delivery.

Site Focus

This video is for sliding door installers to demonstrate the on-site assembly and mounting steps of the three-leaf interlocking sliding door tracks and leaves. The content focuses on the jointing of top track profiles, fastening of the bottom rail, and the tracking and hanging of three door leaves, providing a real footage reference for field operations.

Engineering Detail

Match and assemble the aluminum top track profiles, and use screws to fix the connecting block at the profile joints; insert plastic end caps into both sides of the bottom rail and press them tight by hand, then place the bottom rail into the floor slot; use tools to drive screws into the top and bottom ends of the door leaf profiles to secure the metal brackets and roller assemblies; lift the first door leaf by hand to snap the rollers into the corresponding first-layer track slot; then sequentially lift the second door leaf and third door leaf, hanging them parallelly into the corresponding second-layer and third-layer track slots.

Result Validated

Complete the physical assembly of the three-leaf interlocking sliding door. The top and bottom tracks are connected and fixed, three door leaves are snapped into their corresponding three-layer tracks in sequence, and the door leaves can slide without physical resistance.

Technical Index

System Type:Link gate wooden sliding door system for three doors

Level tolerance of guide rails:not more than 1 mm per 1000 mm

Door leaf thickness specification Y:

- Range 1: 30-38 mm

- Range 2: 39-43 mm

- Range 3: 44-45 mm

Timing belt fixing member dimension:

- For 30-38 mm: 120.5 mm / 126.5 mm

- For 39-43 mm: 136.5 mm

- For 44-45 mm: 140.5 mm

Rail center distance adjustments:

- 30-38 mm: 36 mm center distance, 6 mm clearance

- 39-43 mm: 36 mm center distance, 13 mm clearance

- 44-45 mm: 36 mm center distance, 15 mm clearance

Door overlap dimension basis T:calculated value requirement T <= 5

Lower fixed guide wheel clearance:min 2 mm, max 3 mm

Hardware profile fixing position:40 mm and 65 mm from the edge of the door leaf

System door capability:designed specification for three doors

Site Focus

This video is for door installers and buyers to demonstrate the on-site assembly and mounting steps of the stainless steel door frame, internal filling, and leaf. The content focuses on frame verticality calibration, internal core filling, and stainless steel door leaf mounting onto hinges, providing a real footage reference for field operations.

Engineering Detail

Erect the stainless steel door frame vertically at the opening, and horizontally insert wooden bars inside to prevent deformation; insert wooden wedges into the gaps at the frame bottom and sides, adjusting with a spirit level to calibrate the verticality; use power tools to drill into the wall through the reserved holes of the frame, and drive in long screws for multi-point securing; use tools to pour the mixed liquid filling material into the frame cavities through the upper holes and side clearances; remove the wooden bars, clean the surfaces, then lift the stainless steel door leaf to align the hinge sleeves with the frame hinges, dropping it down vertically to engage.

Result Validated

Complete the physical installation of the stainless steel door. The outer frame is calibrated and secured with internal core filling completed, the stainless steel door leaf is precisely mounted onto the hinges, and the door leaf opens and closes without physical resistance.

Site Focus

This video targets building material buyers, construction installation beginners, and end-users to resolve the pain point of ambiguous identification regarding the names and spatial positions of basic physical components when encountering wooden door products for the first time. The content focuses on the visual real-object guidance of 4 independent core components: door frame, door leaf, architrave, and hinges, eliminating cognitive blind spots regarding the complete physical composition of a door set, and providing a standardized minimalist reference with zero-inference and 1:1 pure footage alignment for B2B site briefings and basic vocabulary establishment.

Engineering Detail

The video directly demonstrates and points out the four basic physical components of a wooden door via real-object footage, non-bulleted for few items: The video clearly presents and defines the location of theload-bearing outer frame (door frame), the main structure of themovable opening leaf (door leaf), the covered area of theouter decorative frame line (architrave)installed around the frame, and the physical appearance of the hardware pivot assembly (hinges) connecting the frame and the leaf.

Result Validated

Users obtain definitive technical conclusions regarding the basic composition of a wooden door. They can accurately point out and distinguish the 4 basic components: door frame, door leaf, architrave, and hinges, achieving 100% accuracy in foundational physical product recognition.

Site Focus

This video targetshigh-end interior decoration contractors and professional wooden door installersto resolve core technical pain points such as misalignments between the door leaf and wall surface, uneven clearances, and concealed effect failure caused by uneven walls or minor hinge axial deviations ofConcealed Wooden Doorsduring site construction. The content focuses on the mechanical jointing of theintegrated aluminum concealed frame, the physical tightening ofspecialized anti-cracking anchors, and the digital alignment ofthree-dimensionally adjustable concealed hinges. Through1:1 empirical footage, it eliminates installers' cognitive blind spots regarding concealed frame plastering finishes and the load-bearing logic of concealed hardware, ensuring that B2B project delivery meets the minimalist spatial standards of100% flush integration between door leaf and wall, absolutely uniform surrounding gaps, and zero-sagging under high-frequency usage.

Engineering Detail

Aluminum Concealed Frame Corner Jointing:Match the integrated aluminum concealed frame at a 45-degree angle on the workbench, slide in the specializedinternal metal corner cleats, and firmly tighten the corner positioning screws using a screwdriver.

Anti-Cracking Mesh Anchor Installation:Insert thepunched mesh anti-cracking metal anchorssequentially into the outer slots of the aluminum frame profiles and secure them with screws, providing a grip structure for subsequent wall plastering.

Concealed Frame Wall Anchoring & Leveling:Push the assembled aluminum frame into the reserved wall opening, utilize aspirit level to calibrate verticality, and physically secure the door frame to the solid wall by driving screws through the anchors.

3D Adjustable Concealed Hinge Integration:Embedheavy-duty concealed hingesinto the pre-milled slots on the side of the wooden door leaf, and perform multi-point mechanical locking using countersunk screws to ensure the hinge sits perfectly flush with the door edge.

Door Leaf Vertical Hoisting & Hinge Interlocking:Lift the heavy wooden door leaf, guide the leaf-side hinges into the corresponding reserved slots on the aluminum frame, and lock both hinge parts together inside the slots usingconnecting mechanical bolts.

Clearance Alignment & 3D Flushness Micro-Tuning:Utilize a hex wrench to adjust the three-dimensional micro-adjustment screws inside the hinges, digitally calibrating thesurface flushness with the wall, lateral clearances, and vertical heightof the door leaf.

Result Validated

Achieve the full closed-loop mechanical integration of the concealed wooden door system. The door leaf, aluminum concealed frame, and surrounding wall achieve a100% flush coplanar status with parallel, equal-width, and uniformly narrow gaps. The rotation axis of the mechanical hardware operates smoothly without physical resistance, meeting B2B physical delivery standards for concealed minimalist aesthetic engineering.

Site Focus

For Contractors, Installers And Homeowners: Threshold Creaks, Hollow Bottom, Unfilled Voids, Potholes From Trampling, Unrepairable Damage. Live Demo With Bilingual Labels, Easy To Follow.

Engineering Detail

Root Cause:Threshold Installed Without Filled Mortar Below, Creaks Under Feet, Potholes Later, Unrepairable

Two-Step Grouting:Step 1 Seal Lower Edge With Sand And Cement; Step 2 Fill With Cement Slurry Into Hollows, No Leakage

Pre-Hole Pouring:Pour Mixed Cement Directly Into Pre-Hole; Or Open Hole And Add Cover By Yourself

Mortar Tips:Use Drier Cement Mortar, Compact It Firmly

Finish:Clean Up In Time, Avoid Dirty Threshold; Grout Soon After Door Installation

Result Validated

After Watching: Master Two-Step Grouting (Sand-Seal Lower Edge → Cement Slurry Fill), Pre-Hole Pouring Method, And Key Details Like Drier Mortar And Timely Cleanup. Follow Steps To Avoid Creaking And Hollow Threshold.

Technical Index

Grouting Method:Two-Step Grouting (Sand Fill Seal, Then Cement Slurry)

Step 1 Material:Sand And Cement

Step 2 Material:Cement Slurry

Mortar Requirement:Drier Mortar, Compact Fill

Pouring:Pre-Hole Direct Pour / Self-Open Hole With Cover

Finish:Timely Cleanup

Content Summary

Metal Threshold Grouting In 2:26: Two-Step Fill (Sand-Cement Seal, Then Cement Slurry), Pre-Hole Pouring, Drier Mortar, Compact Fill, Timely Cleanup. Fixes Creaking And Hollow Threshold.

Site Focus

For High-Rise Residential Renovation Teams: Reserved Opening, Black Aluminum Frame, Rough Exterior Wall, Balcony Sliding Door With Screen Needed Before Handover. Shot On A Real High-Rise Site, From Loose Parts To Finished Door.

Engineering Detail

Profile Prep:Drill Side And Track Holes On The Frame Before Fixing

Frame In Place:Lift Whole Frame Into Opening, Set Sill At Corner, Temporary Hold

Multi-Point Screwing:Secure Frame To Wall At Top, Side And Sill Points

Gap Filling:Fully Pack The Gap Between Frame And Wall

Perimeter Sealant:Continuous Weather Sealant Along Top And Outer Jambs, Both Sides

Film Peeling & Sash:Peel Protective Film, Seat Screen Sash, Then Two Workers Load Sliding Glass Panel Into Track

Trim & Cleanup:Finish Track Corner Joint, Remove Debris And Film Pieces

Result Validated

After Watching: Master The On-Site Order: Drill Prep → Frame In Opening → Multi-Point Screw Fix → Gap Fill → Perimeter Sealant → Peel Film And Load Screen And Sliding Panel → Track Trim. Result: Firm Frame, Sealed Gap, Smooth Sliding.

Technical Index

Product:Black Aluminum Balcony Sliding Door With Integrated Screen

Fixing:Multi-Point Screws To Wall Opening

Waterproofing:Gap Packing + Weather Sealant Perimeter

Tools:Drill, Caulking Gun, Cutter, Wrench

Sash Install:Screen First, Two-Person Sliding Panel Load

Content Summary

1:28 Black Aluminum Balcony Sliding Door With Screen: Drill, Frame In Opening, Multi-Point Screws, Gap Fill And Sealant, Load Screen And Panel, Track Trim. Firm, Sealed, Smooth.

Site Focus

For Door-Window Workshops And Installers: Outward Window Gas-Strut Fitting — How High, How Far From Bottom Frame, Where To Fit Handle And Notch Lock. Live Tape-Measure Demo With Bilingual Labels, Fixes Guessing, Wrong Opening Angle And Strut Damage.

Engineering Detail

Measure First:Tape The Distance Before Fixing The Gas Strut

Base Position:Fix Strut Base To Window Stop With Long Nails, 8 Cm From Bottom Frame

Upper Position:Upper End 30 Cm From Bottom Frame, Centered Left-Right

Both Sides:Symmetrical Struts, Window Opens About 26 Cm

Angle Limit:Higher Mount = Bigger Opening, Preferably ≤45°, Adjust Per Video

Stroke Limit:Closed Length Must Not Be Shorter Than The Strut, Else Damage And Pressure Relief

Handle:Handle Has Adjustment Screws, Direction Adjustable; Center It, Edge-To-Pressing-Line Boundary, Drive Screws

Lock Notch:Fit Handle First, Notch Wind-Stop Cover At Window-Windstop Junction; Fix Lock Plate With Long Nails, Master The Distance

Result Validated

After Watching: Build To The Numbers — Base 8 Cm, Upper 30 Cm Centered, Opening 26 Cm; Keep Opening Within 45° And Closed Length ≥ Strut; Center Handle At Edge-Line Boundary, Notch At Window-Windstop Junction, Then Fix Lock Plate. Smooth Opening Without Strut Damage.

Technical Index

Strut Base:8 Cm From Bottom Frame, Long Nails To Window Stop

Strut Upper:30 Cm From Bottom Frame, Centered

Opening:About 26 Cm

Angle Limit:Preferably ≤45°

Stroke Limit:Closed Length ≥ Strut Itself

Handle Position:Centered, At Edge To Pressing-Line Boundary

Lock Notch:Window-Windstop Junction, Lock Plate With Long Nails

Content Summary

1:32 Shop Demo: Outward Window Gas-Strut & Handle. Base 8cm, Upper 30cm Centered, Opens 26cm; Angle ≤45°, Closed Length ≥ Strut; Handle Centered, Notch At Window-Windstop, Lock Plate Nailed.

Site Focus

For B2B Projects And Overseas Distribution Installation: 3D Animation Shows The Complete Installation Sequence And Process Standards Of The 55MM Minimalist Aluminum Wooden Door, Solving Rework Caused By Unclear Steps, Inconsistent Screw Spacing, And Non-Perpendicular Frames. Bilingual Subtitles, Ready To Use For Overseas Installation Teams.

Engineering Detail

4 Core Process Steps In Order:

1. Main Sleeve Installation:Position Main Sleeve → Connect With Balance Brackets → Tighten With Hex Key

2. Perpendicular & Flush:Door Frame Kept Perpendicular To And Flush With The Wall

3. Wall Fixing:One Screw Every 30cm, Screw Must Pass Through The Main Sleeve Into The Wall (Drill)

4. Hinge & Secondary Sleeve:Hinge Secures Door Leaf To Frame; Position Secondary Sleeves → Connect With Corner Pieces → Insert Into The Main Sleeve's Slot

Result Validated

After Watching, Installers Can Independently Install The 55MM Minimalist Aluminum Wooden Door:

Clear Main Sleeve → Frame Alignment And Wall Fixing → Hinge → Secondary Sleeve Installation Sequence

Master Perpendicular & Flush Calibration And 30cm Screw Spacing

Know Balance Brackets, Corner Pieces, Hex Key, Drill And Their Use

Technical Index

Frame System Thickness:55MM

Screw Spacing:One Screw Every 30cm

Fixing Requirement:Screw Passes Through Main Sleeve Into The Wall

Main Sleeve Connector:Balance Brackets

Secondary Sleeve Connector:Corner Pieces

Installation Tools:Hex Key, Drill

Site Focus

For Contractors, Distributors And Installation Teams: Solve Door Frame Misalignment, Poor Verticality, Cover Line Gaps, Hinge Misplacement And Door Scraping On Site. 3D Step-By-Step Demo With Bilingual Labels, No Expertise Needed.

Engineering Detail

Frame Cutting:Cut Off Redundant Parts, Or Cut Frame At 90 Or 45 Degrees

Tape Treatment:Paste Adhesive Tape, Trim Extra Tape With Utility Knife, Then Assemble Frame

Fix Into Opening:Insert Frame, Secure With Angle Steel And Wall Wedge

Verticality:Place 3 Support Rods Inside, Check With Infrared Level, Fine-Tune With Hammer, Side Panels Clamp Rods, Adjust All Directions

Foam Filling:Fill Frame Gap With Expanding Foam, Wait Until Fully Dry

Door Cover Line:Arrange On Ground → Measure With Ruler → Cut In Front-Back Order → Apply Silicone Sealant Evenly On Notch (Same Order As Foam) → Assemble → Seal Contact Area With Silicone Sealant

Flat Hinge:Install In Door Leaf Groove → Screw Fix → Move Door Leaf To Align With Frame Groove

Invisible Hinge:Put In Door Leaf Groove → Screw In Turn → Move Door Leaf To Align → Screw Fix

Clearance:Place About 10mm Board Beside Frame, Reserve 10mm Door Leaf Clearance To Avoid Scraping

Result Validated

After Watching: Installers Master The Full Sequence (Cut → Tape → Fix → Foam → Cover Line → Hinge), The Difference Between 90/45 Degree Cut And Flat/Invisible Hinge Installation, Plus 10mm Clearance And Infrared Leveling. Follow Steps To Finish Qualified Installation.

Technical Index

Cutting Angle:90 Or 45 Degrees

Support Rods:3 Pcs

Door Clearance:10mm

Spacer Board:About 10mm

Tools:Cutting Tool, Utility Knife, Angle Steel, Wall Wedge, Infrared Level, Hammer, Ruler, Foam Gun, Silicone Sealant Gun

Materials:Expanding Foam, Adhesive Tape, Silicone Sealant, Screws

Content Summary

Wooden Door Install In 2:54: Cut Frame 90/45, Tape, Wedge-Fix, Level 3 Rods, Foam Fill, Cover Line Glue/Seal, Flat And Invisible Hinge, 10mm Clearance. Bilingual For Contractors.

Site Focus

For Window Installers And Project Acceptance: Sash Fall Risk From Long-Term Use, Need A Steel Cable Between Frame And Sash. Live Close-Up Demo With Bilingual Step Captions, Directly Followable.

Engineering Detail

Frame Side:Insert Notched End Into Frame Slot At 45° Angle, Then Lay Flat

Lock Frame Side:Twist Counterclockwise Twice Firmly, Then Tighten Clockwise

Sash Side:Same Principle: Notch Into Sash Slot At 45°, Flatten, Tighten Clockwise

Final Fix:Drive Two Self-Tapping Screws On The Sash Side

How It Works:Cable Links Frame And Sash, Provides Pull Force In An Emergency

Result Validated

After Watching: Install The Anti-Fall Box Independently: 45° Slot-In, Flatten, CCW Twice Then CW Tighten, Two Self-Tapping Screws Each On Frame And Sash. Cable Links Frame To Sash For Fall Protection.

Technical Index

Part:Anti-Fall Rope Box (Steel Cable)

Location:Frame Slot And Sash Slot, Two Sides

Insert Angle:Notched End At 45°, Then Flatten

Tightening:CCW Twice, Then CW Tighten

Fasteners:Two Self-Tapping Screws Per Side

Function:Pull Force If Sash Falls, Prevents High-Altitude Drop

Content Summary

1:13 Anti-Fall Rope Box Install: Notch Into Frame Slot At 45°, Flatten, CCW Twice Then CW Tighten; Same On Sash, Two Self-Tapping Screws Each Side. Cable Pulls Sash In Emergency.

Site Focus

For Contractors And Installers: Floor-Mounted Glass Railing Fixed To Concrete, With Built-In LED Strip In The Base Channel For Lighting And Ambient Glow. Desktop Demo With Bilingual Labels, Prep-And-Install Ready.

Engineering Detail

Strip Adjust:If LED Strip Tilted Outward, Temp-Adjust To Level

Step 1:Fix Base Groove To Concrete, 5 Expansion Screws Per Meter

Step 2:Lay LED Strip Into Channel; Step 3: Inner Clips 3 Sets Per Meter

Step 4:Transparent Gasket Over Strip, 4 Pieces Per Meter

Step 5:Insert Glass Vertically Into Groove

Step 6:Stick Triangle Plate And Gasket Neatly, 4 Sets Per Meter

Step 7:Screw Top Screw To Fixture, 4 Sets Per Meter

Step 8:Clip Small Retainer Inside To Fix Glass

Step 9:Cover Lid, Hammer Tight The Glass Gap, Then Apply Glass Glue To Gap

Result Validated

After Watching: Master The 9-Step Installation Of 90mm Glass Railing Base Profile, Per-Meter Quantities (5 Expansion Screws / 3 Inner Clips / 4 Gaskets / 4 Fixture Sets), Plus Strip Leveling, Tight Cover And Glue Sealing.

Technical Index

Profile Height:90mm

Fixing:Base Groove To Concrete, 5 Expansion Screws / Meter

LED Strip:Built-In, Covered By Transparent Gasket

Inner Clips:3 Sets / Meter

Transparent Gasket:4 Pieces / Meter

Triangle Plate + Top-Screw Fixture:4 Sets / Meter

Finish:Hammer Tight Glass Gap, Seal With Glass Glue

Content Summary

90mm Glass Railing Base (With LED Strip) In 1:04: 5 Screws/M Concrete Fix, Strip, 3 Clips/M, 4 Gaskets/M, Glass, 4 Sets Triangle, 4 Top-Screws/M, Cover Hammered, Glued. Tilted Strip Levelable.

Site Focus

For Railing Contractors, Installers And Workshops: Frameless Glass Railing Base Shoe Install — How To Fix The 110×135 Drainage Base To Floor, Where Glass Sits, Where LED Strip Goes, How To Seal Covers. Presenter Shows Cross-Section And Every Part Live, Fixing Wrong Order, Unclear Counts And Reversed Sides.

Engineering Detail

Orientation:Stepped Side Is Where Worker Stands And Glass Goes, Don't Reverse

Elevator:Insert Elevator Pad Into The Channel First

Step 2 Screws:6 Sets/Meter — 3 In Middle, 3 At Side Elevators

Step 3 Strip:Profile Embeds LED Strip, Fixed At 3 Sets/Meter

Step 5 Pads:4 Sets/Meter, Sunk 1 Cm

Step 6 Buckle:One Anti-Deformation Buckle Between Two Glass Panels

Covers:Fit Outer Lid First, Then Inner Lid After Glass In

Step 9 Glass:Slot Glass Upright Into Channel With Tool

Glue:Apply Glass Sealant Appropriately After Fitting

Result Validated

After Watching: Assemble The Base Alone — Confirm Sides → Insert Elevator → 6 Screws/M (3+3) → Embedded Strip At 3/M → 4 Pads/M Sunk 1cm → Anti-Deformation Buckle Between Glass → Outer Cover → Slot Glass → Inner Cover → Sealant. Ends With The Railing LED Lit Finish.

Technical Index

Size:110mm W × 135mm H, New Drainage Profile

Use:Frameless Glass Railing Base, LED Strip Embeddable

Screws:6 Sets/M (3 Middle + 3 Side Elevators)

Strip Mount:3 Sets/Meter Spacing

Pads:4 Sets/Meter, Sunk 1cm

Buckle:One Between Two Glass Panels

Finish:Inner & Outer Covers, Apply Sealant

Content Summary

1:34 Install Of 110×135 Glass-Railing Base: Elevator Pad, 6 Screws/M (3+3), Embedded LED Strip At 3/M, 4 Pads/M Sunk 1cm, Anti-Deformation Buckle, Covers, Glass Slotting, Sealant, LED Lit.

Site Focus

For Modern Minimalist Interior Projects: Finished Wall, No Floor Track Required, Slim-Frame Glass Door. Shot On A Real Renovation Site, From Marking To Hanging And Acceptance.

Engineering Detail

Pre-Position:Lean Door Leaf In Opening At Closed Position As Datum

Mark Holes:Mark Hanger Bracket Holes On Wall Above Opening

Drill:Use 8mm Drill Bit

Anchor:Drive In Metal Expansion Tubes For Better Pulling Force

Hang Hardware:Tighten Hanger Accessories, Adjust Level, Laser-Align Center

Bottom Anti-Swing:Floor Block Set 1.5cm Out, Drilled And Anchored To Stop Sway

Hang Leaf:Lift Door Into Opening, Hook To Top Hangers, Check Top Gap

Result Validated

After Watching: Install The Trackless Door Solo: Top 8mm Holes + Metal Expansion Tubes + Leveled Hangers, Bottom Anti-Swing Block 1.5cm Out Anchored To Floor. Result: No Track, Smooth Sliding, Adult Load Test Passed.

Technical Index

Load Method:Top-Hung, No Floor Track

Drill Bit:8mm

Anchor:Metal Expansion Tube (Top)

Bottom Stop:Anti-Swing Block, 1.5cm Offset

Alignment:Laser Level Line

Verification:Suction-Handle Hanging Load Test

Content Summary

2:10 Trackless Sliding Door Install: Mark Top Holes, 8mm Drill, Metal Expansion Tubes, Leveled Hangers, 1.5cm Anti-Swing Block Anchored To Floor, Hang Leaf. No Track, No Sway, Adult Load Tested.

Site Focus

For Partition Contractors And Installers: Indoor Office 12mm Single Glass Partition With 80mm Aluminum Column And Ground Rail. Live Demo With Bilingual Labels, Beginner Friendly.

Engineering Detail

Profile:80mm Single-Glass Aluminum Column And Rail

Connection:Column And Rail Corner-Code Locked Continuous Fix

Pressure Line:Buckle One Side Of The Pressure Line First

Card Strip:Install Integrated Single-Glass Card Strip

Glass:Insert 12mm Glass Into The Card Slot

Seal:Seal And Fix With Structural Glue

Result Validated

After Watching: Master The Full Flow — Corner-Code Lock → Pressure Line → Integrated Card Strip → 12mm Glass In Slot → Structural Glue Seal.

Technical Index

Glass:12mm Single Glass

Profile:80mm Aluminum (Column + Ground Rail)

Connection:Corner-Code Lock Continuous Fix

Glass Fix:Integrated Card Strip + Card Slot

Sealant:Structural Glue

Content Summary

12mm Single Glass Partition In 0:34: 80mm Alu Column-Rail Corner-Code Locked, Pressure Line, Integrated Card Strip, Glass In Slot, Structural Glue Sealed.

Site Focus

For Installers And Folding Door Projects: Many Leaves, Easy To Get Fold Direction And Lock Jamb Wrong. Close-Up Bilingual Demo In Workshop, Assemble By Number To Avoid Reversal Errors.

Engineering Detail

Check State:Unit Is In Semi-Open State, Confirm Folding Form First

Assemble By Number:Handwritten Numbers On Profile Are The Assembly Sequence (Series 2 To 10)

Fold Direction:This Set Folds To The Left, Confirm Before Linking

Lock Jamb:Side Near The Closed Trim Border Is The Locking Position

Hinges:Screw Into Pre-Drilled Hinge Holes, Outward Opening Per Site

Verify:Smooth Folding After Numbered Assembly

Result Validated

After Watching: Assemble Multi-Leaf Folding Door Fast: Read Handwritten Numbers, Confirm Left Fold, Locate Trim Border Lock Jamb, Screw Hinges Into Pre-Drilled Holes. Unit Closes Tight And Folds Smoothly.

Technical Index

Product:Black Multi-Leaf Folding Door

Assembly Basis:Handwritten Numbers On Profile (Series 2 To 10)

Fold Direction:Fold To The Left

Lock Side:Trim Border Side

Hinge Fixing:Screws In Pre-Drilled Hinge Holes

Acceptance:Smooth In Semi-Open Folded State

Content Summary

1:23 Folding Door Assembly: Handwritten Numbers (2 To 10) Set The Sequence, Fold Left, Trim Border Is Lock Side, Hinges Screw Into Pre-Drilled Holes. Match Numbers, Fold Smooth.

Site Focus

For Door Install Teams And Contractors: Hanging Sliding Door On Site — How To Fix Frame To Doorway, Hoist Fixed Sash, Hang Movable-Sash Wheels, Stick Ground Rail, Set Level. Live Multi-Worker Demo With Infrared Lining, Fixes Crooked Sash, Jamming Sliding And Misaligned Rail.

Engineering Detail

Frame:Secure Outer Frame To Doorway And Tighten

Ground Strip:Fix Aluminum Strip On Floor, Align With Infrared Level

Center:Strip Center Must Line Up With Track-Groove Center

Fixed Sash:Insert Bottom First Into Track

Top Wheel:Hang Wheel Into Top Groove, Tighten Hex Socket Screws

Movable Sash:Install Movable Sash, Align End To Side-Groove Center

Ground Rail:Press Rail Snug To Slats, Peel Self-Adhesive Backing And Stick

Finish:Set Vertical & Level, Then Fit Door-Panel And Track Decorative Covers

Result Validated

After Watching: Run The Hang-Door Install Alone — Frame To Doorway → Infrared-Leveled Ground Strip Centered To Track → Fixed Sash Bottom-First, Wheel In Top Groove, Hex-Tightened → Movable Sash Centered To Side Groove → Self-Adhesive Ground Rail Snug To Slats → Level Then Decorative Covers. Smooth Sliding, True Alignment.

Technical Index

Order:Frame → Ground Strip → Fixed Sash → Movable Sash → Rail → Covers

Level Tool:Infrared Level

Alignment:Strip Center = Track-Groove Center, Same Line

Fixed Sash:Bottom First, Wheel Into Top Groove

Fastening:Hex Socket Screws

Ground Rail:Snug To Slats, Self-Adhesive

Acceptance:Set Vertical & Level, Then Covers

Content Summary

2:11 Hang-Sliding-Door Install: Frame To Doorway, Infrared-Leveled Strip Centered To Track; Fixed Sash Bottom-First, Hex-Tightened Wheel; Movable Sash Centered; Self-Adhesive Rail; Level, Then Covers.

Site Focus

For Door Makers And Installers: Ghost Door (Trackless Concealed Sliding) On-Site Install. Door Pre-Assembly, Upper/Lower Positioning & Limit Pieces, Marking And Drilling, Hang-And-Level. Live Demo With Bilingual Labels; All Marking Sizes (7mm, 35mm, 10mm) Shown On Screen.

Engineering Detail

Parts:Upper/Lower Tracks, Connectors, Buffer Rollers, Ground Wheels ×2

Buffer:Into Door Top Track Groove, Clip Facing Outward

Ground Wheel:Below Door Leaf, Leave 3mm On Locking Screw

Limit Piece:Opening 10mm Higher Than Door (630); Mark 7mm From Edge, Drill To Template

Lower Positioning:Center 35mm From Lower Wall, Drill And Fix

Hang:Snap Into Lower Positioning And Track Groove, Embed Upper Limit, Tighten Side Top Screw

Level:Adjust Door Height By Ground-Wheel Screw, Flush With Limiter

Finish:Fit 4 End Caps, Installation Complete

Result Validated

After Watching: Master Door-Prep Sequence (Buffer Outward, 3mm Wheel Screw), Opening Marks (7mm Edge, 35mm Wall, +10mm Height), Hang-Level (Wheel-Screw Height, Flush Limiter), And End-Cap Finish.

Technical Index

Model:YP-86 Yimi 40 System Ghost Door

Ground Wheels:×2

Locking Screw:Leave 3mm

Opening Height:10mm Higher Than Door (630)

Limit Mark:7mm Inside Opening Edge

Lower Positioning:35mm From Lower Wall

End Caps:4

Content Summary

YP-86 Ghost Door Install In 3:20: Buffer Outward, Wheel 3mm, 7mm Edge Mark, 35mm Lower Positioning, Hang, Level By Wheel Screw Flush To Limiter, 4 End Caps.

Site Focus

For Balcony Enclosure And Heavy Door Projects: Owner Wants No Raised Track, Easy Cleaning, Heavy And Soundproof. On-Site Demo From Frame Fix To Screen Trim, Focusing On Hidden Copper Rail Vs Traditional Track.

Engineering Detail

Fix Frame:Secure Door Frame To Wall, Then Assemble Single-Side Trim Border

Plumb:Check Verticality With Laser Level

Drill & Fix:Mark Hole Reference, Impact Drill Then Drive Screws

Hidden Rail:Slot Floor Tiles First, Embed Solid Copper Bar Flush With Floor

Hang Sashes:Two Workers Lift Heavy Glass Panel Into Track; Add 304 Stainless Screen Door

Final Trim:Cover Seam Screw Holes With Sealing Strip, Done

Result Validated

After Watching: Install The Heavy Balcony Door Solo: Frame To Wall, Laser Plumb, Impact Drill Screws, Then Tile-Slotted Solid Copper Hidden Rail. Add Glass Panel And 304 Screen, Cover Screw Holes With Seal Strip. Flat Floor, Smooth Sliding, Sealed, Soundproof.

Technical Index

Product:Balcony Heavy Sliding Door + 304 Stainless Screen

Rail Method:Tile Slotted Solid Copper Bar (Hidden)

Alignment:Laser Level

Frame Fixing:Impact Drill + Screws

Trim:Seam Screw Holes Covered With Seal Strip

Selling Points:Strong Seals, Soundproof, No Dust Trap, Easy Clean

Content Summary

1:44 Heavy Balcony Door Install: Frame To Wall, Laser Plumb, Impact Screws, Tile-Slotted Solid Copper Hidden Rail, Glass Panel + 304 Screen, Seal Strip Trim. No Dust Trap, Sealed, Soundproof.

Site Focus

For Fit-Out Contractors, Door Installers And Minimalist-Door Dealers: 55mm Alu-Wood Door On Site — Main Sleeve Build, Frame Plumbing, Screw Spacing, Leaf Hanging, Secondary Sleeve Trim, Wide-Wall And Gap Fix. The 3D Animation Visualizes The Hidden-In-Wall Section Step By Step, Fixing Unseen Structure, Screw Points And Trim.

Engineering Detail

Main Sleeve:Position Main Sleeve, Join With Balance Brackets, Tighten Hex Key

Position:Frame Must Be Plumb And Flush With Wall

Wall Fix:One Screw Every 30cm, Ensure It Passes Through Sleeve Into Wall

Leaf:Hang Leaf On Concealed Hinges, Adjustable With Hex Key

Secondary Sleeve:Position Secondary Sleeve, Join With Corner Pieces, Slot Into Main Sleeve

Wide Wall:Add Extension Panel Between Sleeves (Structural Adhesive)

Gap:Fill Frame-Wall Gap With Expanding Foam

Result Validated

After Watching: Build The 55mm Door — Balance-Bracket Main Sleeve → Frame Plumb & Flush → Screw Every 30cm Through Sleeve → Concealed-Hinge Leaf Hang & Adjust → Secondary Sleeve Slotted With Corner Pieces → Wide-Wall Extension Panel, Foam Gaps. True, Solid, Seamless.

Technical Index

Door Type:55mm Minimalist Alu-Wood Door

Main Sleeve:Balance Brackets, Hex Key

Position:Plumb & Flush To Wall

Screw Spacing:One Every 30cm, Through Sleeve Into Wall

Leaf:Concealed Hinge, Hex Adjustable

Secondary Sleeve:Corner Pieces, Slot Into Main Sleeve

Wide Wall:Extension Panel, Structural Adhesive

Gap:Expanding Foam

Content Summary

2:08 3D Install Of 55mm Alu-Wood Door: Balance-Bracket Main Sleeve Hex-Tightened, Frame Plumb & Flush, Screw Every 30cm; Concealed-Hinge Leaf; Secondary Sleeve Slotted; Wide-Wall Panel, Foam Gaps.

Site Focus

For Door Makers And Installers: Smart Lock Retrofit/New Install On Pre-Prepared Door. Live Demo On Door Stand + 3D Diagrams, Key Alignment Annotated, Beginner Friendly.

Engineering Detail

Lock Body:Fit Into Door Cutout, Fasten With Screwdriver

Handle Panels:Pre-Assemble Inner/Outer Panels With Spindle And Screws

Spindle:Protrudes 5mm Per Diagram

Left/Right Panels:Turning Triangle Mark On Opposite Side Of Handle

Fix:Panels Through Door On Spindle, Screws Tightened In Sequence

Test:Snap On Cover, Ring Indicator Lights, Lever Test On Latch

Result Validated

After Watching: Master E-103 Sequence (Lock Body → Panel Pre-Assembly → 5mm Spindle → Through-Door Fix → Cover), Left/Right Triangle-Mark Check, And Ring-Light + Lever Test Acceptance.

Technical Index

Model:E-103

Spindle Protrusion:5mm

Panel Side:Left/Right Front Panel, Triangle Mark Opposite Handle

Indicator:Ring Light (Green On)

Content Summary

E-103 Smart Lock Install In 2:46: Lock Body Fixed, Panels Pre-Assembled, 5mm Spindle, Left/Right Triangle Mark, Through-Door Screws, Cover On, Ring Green, Lever Tested.

Site Focus

For Door Installers And Hardware Dealers: Sealing The Gap Under The Door Leaf For Dust, Sound, Light And Insect Control. Pick The Right Method By Gap Width — Standard For Normal Gap, Wide-Gap Option For Wider Gap. Presenter Lays Every Part On The Floor And Builds It Live: Shell & Seal Body, End Caps, Screw Choice — Fixing Mis-Parts, Wrong Screws And Wide-Gap Choices.

Engineering Detail

Set Contents:Aluminum Shell, Seal Body, Both-Side End Caps, Mount Clips

Holes:Body Has 4 Screw Holes (1-2-3-4), Align Them First

Shell:Slide Seal Body Into Shell Per Groove, Then Cover It

End Caps:Both Ends Have Caps, Clip In By Position

Break Tab:Snap Off The Tab On One Side Before Use

Screws:Use Longer Screws, Two Per End

Mount:Mount Plate Fixed Directly On Frame Side, Compensates Weak Sealing

Gap:Choose Option For Wider Bottom Gap; Standard For Normal Gap

Result Validated

After Watching: Assemble The Seal Alone — Align 4 Holes → Slide Seal Body Into Shell & Cover → Clip End Caps Both Ends → Break One Tab → Longer Screws, Two Per End → Mount Plate On Frame For Reinforcement; Wide-Gap Option For Wide Gaps, Standard For Normal. Complete, Firm Sealing.

Technical Index

Product:Door-Bottom Seal Set (Shell + Seal Body + Caps + Clips)

Screw Holes:4 On Body (1-4), Align Before Fix

Screws:Longer Screws, 2 Per End

End Caps:One Per End, Clip In

Special:Break One Side Tab First

Mount Plate:On Frame Side, Reinforce Sealing

Gap:Wide-Gap Option Or Standard

Content Summary

1:54 Guide To Door-Bottom Seal Set: Slide Body Into Shell, Align 4 Holes (1-4), Clip End Caps, Break One Tab; Longer Screws, Two Per End, Mount Plate On Frame; Wide-Gap Or Standard Option.

Site Focus

For Installers And Entry Door Handover: Lock Body Embedded, Multi-Point Bolts Ready, Need To Fit Inner And Outer Stainless Handle Panels. Close-Up Bilingual Step Demo, Follow-Along Install.

Engineering Detail

Pre-Adjust Outer Panel:Set Outer Handle Plate, Confirm Two Screw Holes

Outer Screws:Screw Both Sides, Secure Outer Plate First

Spindle Prep:Flat-Faced Square Spindle, Spring Fitted, About 5mm From The Flat

Feed Spindle:One End Stays Outside, Seat The Spring; Inner End Goes Inside

Fit Outer Handle:Align Spindle And Studs, Slide Plate On, Check Latch Opens

Fit Inner Panel:Last Step: Inner Plate, Align Holes, Tighten Screws

Snug Then Align:Run Screws Into Front Sleeve, Snug Not Tight, Leave Play, Shift Left-Right To Center

Final Tighten & Test:Tighten Top And Bottom Screws, Both Sides Done, Key Test

Result Validated

After Watching: Install Door Handle Panels Solo: Spindle Flat + 5mm Spring, Split Feed Through, Hole Alignment, Then Snug → Center → Final Tighten. Verify With Key Operation: Multi-Point Bolts And Both Handles Work.

Technical Index

Object:Inner/Outer Handle Panels, Multi-Point Lock Metal Door

Spindle:Flat-Faced Square Bar, Spring ~5mm From Flat

Feed:Outer End Outside, Inner End Inside, Spring Seated

Alignment:Match Stud Holes, Screws On Both Sides

Tightening Order:Snug In Sleeve → Center Left-Right → Final Top-Bottom Tighten

Acceptance:Key Opens/Closes, Multi-Point Bolts Move

Content Summary

3:47 Security Door Handle Install: Flat Spindle, Spring ~5mm, Split Feed Through, Outer Plate First, Inner Plate Aligned, Snug Not Tight, Center, Final Tighten, Key Test Multi-Point Bolts.

Site Focus

For End Users And Dealers: First-Time Wi-Fi Binding Of E-515 Smart Lock To Tuya App. Lock + Phone Screen Recording Side-By-Side; Top Two Fail Causes (No Admin, Wrong Wi-Fi Band) Called Out Up Front.

Engineering Detail

Pre-1:Add Administrator On Lock Before App Binding

Pre-2:Phone On 2.4GHz Wi-Fi

Lock:Wake Keypad, Enter Admin Code, Enter Pairing Mode

App:Tuya Auto-Finds "SmartLock", Tap Add

Pair:Wait Auto-Add (~20s Countdown)

Done:"Added successfully", Enter Control Panel

Verify:Green Unlock Button, Tap To Unlock Remotely, Lock Turns Green, Logs "Remote Unlock Via App"

Result Validated

After Watching: Follow Exactly — Admin First, 2.4GHz Wi-Fi, Lock Pairing Mode, Tuya Auto-Add, Remote Unlock Button; Lock Turns Green With "Remote Unlock Via App" Log = Pairing Done.

Technical Index

Model:E-515, Tuya App

Wi-Fi:2.4GHz Only

Unlock:Card, Password, Fingerprint, Key, Type-C Emergency, Doorbell

Expandable:Bluetooth, Wireless Networking, 3D Face, Cat's Eye, VDP, Amazon Alexa

Content Summary

E-515 To Tuya In 1:39: Admin On Lock, 2.4GHz Wi-Fi, Pairing Mode, Auto-Find SmartLock, Add Done, Tap Remote Unlock, Lock Green, Logged.

Site Focus

For Installers, Contractors And End Users: How To Sequence Pre-Prep, Lock Body Placement And Front/Rear Panel Fixing After Smart Lock Parts Arrive. Live Demo On A White Door Stand With English Step Titles, Easy To Follow.

Engineering Detail

Parts Check:Front/Rear Panels, Lock Body, Connecting Wire, 4 Batteries, Screw Posts, Spring And Connectors

Step 1 Screw Posts:Screw Posts Into Panel Backs, Connect And Arrange Wires

Step 2 Spring & Battery Cover:Install Spring And Remove The Battery Cover

Step 3 Lock Body:Align Lock Body Into The Door Slot, Fix With Power Screwdriver

Step 4 Front/Rear Panels:Thread Wires, Align And Fix Both Panels, Tighten Screws

Result Validated

After The Four Steps, Panels Fit The Door, Screws Are Tight, The Green Indicator Ring Lights Up And The Handle Works Normally — The E-515 Is Properly Installed.

Technical Index

Steps:1 Install Screw Posts → 2 Install Spring, Remove Battery Cover → 3 Install Lock Body → 4 Install Front/Rear Panels

Power:4 Batteries (Rear Compartment)

Tool:Power Screwdriver

Content Summary

E-515 Smart Lock Install In 1:48: Check Parts, Fit Screw Posts And Wires, Add Spring And Remove Battery Cover, Fix Lock Body, Then Mount Front/Rear Panels And Tighten. Green Ring On Means Done.

Site Focus

For Installers And Contractors: After The Lock Reaches The Door — Sequentially Fit The Lock Body And Cylinder, Handle Panel Screws And Sleeve, Confirm Door Swing Direction, Align Front/Rear Panels, Cut Screw Lengths, Insert Battery And Test. Gloved Hands With Bilingual Subtitles, Step-By-Step.

Engineering Detail

Lock Body & Cylinder:Fit The Lock Body Into The Door, Then The Cylinder

Panel Screws:Loosen Front Panel Screws, Fit The Sleeve (Tighten With Pliers), Then Re-Tighten

Door Swing:Confirm Opening Direction; Rear Panel Direction Can Be Changed

Front Panel:Align Holes, Install Front Panel, First Test Normal Open/Close

Wire & Rear Panel:Stuff Excess Wire Into The Door Crack, Align And Install Rear Panel

Cut Screws:Cut Screws To The Right Length, Then Screw On

Battery & Test:Insert Battery And Cover, Then Test The Lock

Result Validated

Master The Full K80 Sequence: Fit Body And Cylinder, Loosen/Tighten Panel Screws And Pliers-Tighten The Sleeve, Confirm And Change Swing Direction, Align Front/Rear Panels, Stuff Wires Into The Crack, Cut Screws To Door Thickness, Then Fit Battery Cover And Test Open/Close.

Technical Index

Sequence:Body → Cylinder → Front Screws/Sleeve → Swing Confirm → Front Panel → Stuff Wire → Rear Panel → Cut Screws → Battery/Cover → Test

Sleeve:Install Sleeve And Tighten With Pliers

Screws:Cut To Door Thickness

Swing:Rear Panel Direction Changeable

Content Summary

K80 Lock Install In 1:35: Fit Body And Cylinder, Loosen/Tighten Panel Screws, Pliers-Tighten Sleeve, Confirm/Change Swing, Align Panels, Stuff Wire, Cut Screws, Fit Battery, Test.

Site Focus

For Door Installers And Contractors: Installing A Motorized Bi-Fold Door In A Large Indoor Opening, Where Door Panels Fold Vertically To One Side. On-Site Demo In A Finished Interior: Top Tube Embedding, Ceiling Angle-Iron Fixing, Panels Into Track, Torsion Spring Tension, Motor Wiring And Safety Infrared.

Engineering Detail

Parts Prep:Torsion Springs, Center Wall Plates, Angle Irons, Hinges, Rollers, Screw Kits

Top Tube:Insert Torsion Spring And Center Wall Plate Into The Top Bar Tube

Mark Holes:Mark And Drill Positions For The Top Rail Tube

Angle Iron:Assemble Perforated Angle Iron Onto The Ceiling On Both Left And Right Sides

Panels Into Track:After The First Panel Is In, Install The 2nd/3rd/4th Panels, Hinges And Rollers (Rollers Into The Vertical Track)

Wire Ropes:Install Left And Right Steel Wire Ropes

Spring Tension:Use Two 12mm Round Steel Rods In The Four Adjustment Holes, Apply Force Upwards In The Closing Direction

Motor Wiring:Wire The Motor And Control Board

Infrared Beam:Fix The Infrared Beam To The Side Of The Bottom Wall

Result Validated

After The Numbered Steps, The Black Glass Bi-Fold Panels Fold Smoothly Along The Vertical Track And Open/Close Steadily; The Torsion Spring, Motor Chain And Bottom Infrared Beam Are All In Place — The Motorized Door Is Fully Installed.

Technical Index

Panels:Install Panel 1, 2, 3, 4 In Sequence

Spring Tool:Two 12mm-Dia. Round Steel Rods Into The Four Adjustment Holes

Force Direction:Push Upwards In The Closing Direction

Safety:Infrared Beam Fixed Beside The Bottom Wall

Content Summary

5:20 On-Site Bi-Fold Door Install: Spring And Plate In Top Tube, Mark Holes, Fix Angle Iron To Ceiling, Fit 4 Panels/Rollers, Wire Ropes, Tension Spring With 12mm Rods, Motor Wiring, Infrared Beam.

Site Focus

For Window Install Crews And Homeowners: High-Rise Residential Window Replacement — Remove Old Fixing Pieces And Clean/Level The Rough Opening. On-Site Demo By A Uniformed Installer Narrating While Working, With Laser Level And Safety Harness.

Engineering Detail

Remove Film:Strip The Frame Protective Film Before Installation

Remove Old Pieces:Take Out The Original Window Fixing Pieces

Safety:Take Safety Measures And Wear The Harness When Working Outside The Opening

Level:Use A Laser Level To Adjust Frame Horizontal And Vertical

Special Pads:Step 6, Use Special Pads Under The Frame

Fill Gap:Fill The Frame-Wall Gap With Foam/Sealant

Check Firmness:After Screws Are Fixed, Check The Window Frame Is Firm

Safety Net:Put Up A Safety Net On The Outside

Result Validated

Master The High-Rise Window Replacement Sequence: Strip Film, Remove Old Fixing Pieces With Outside Safety, Level The Frame With A Laser, Insert Special Pads, Fill The Frame-Wall Gap, Then Check Frame Firmness After Screws, And Put Up An Outside Safety Net.

Technical Index

Level Tool:Laser Level

Pads:Special Pads (Step 6 Under The Frame)

Working At Height:Safety Harness, Outside Safety Net

Content Summary

1:47 On-Site Window Install Narrated: Strip Frame Film, Remove Old Fixing Pieces Safely, Level Frame With Laser, Insert Special Pads, Fill Gap, Check Firmness After Screws, Put Up Safety Net.

Site Focus

For Installers And Store Contractors: Adjusting A Glass Door Floor Spring After The Box Is Embedded — Door Not Vertical, Closing Speed Not Right. 3D Demo On A Marble Floor, With Parameters Labeled Directly On Screen.

Engineering Detail

Axis:First Mark The Floor Spring Axis Position

Trough Size:Cement-Trough Edge To Door Frame >14mm; Pit Slightly Larger Than The Box

Box Level:Box Flush With The Ground; Put The Spring In Only After Cement Fully Solidifies

Initial:Temporarily Tighten Adjustment Screws, Rotate The Spindle 90° In The Door-Opening Direction

Verticality:Level The Door Leaf; Body Adjustable Up/Down 5mm; If Not Vertical, Loosen One Side Screw, Adjust, Then Lock All Screws

Stage-1 Valve:Range 90°-20°; Clockwise Slows Closing, Counterclockwise Speeds Up

Stage-2 Valve:Range 20°-0°; Clockwise Slows, Counterclockwise Speeds Up

Result Validated

Complete Floor Spring Embedding And Adjustment: Level The Box, Align The Axis, Make The Door Vertical, And Tune Closing Speed With Stage-1 (90°-20°) And Stage-2 (20°-0°) Valves. On-Screen Comparison: 80°-20° Before, 84°-20° After.

Technical Index

Trough Edge To Frame:>14mm

Pit:Slightly Larger Than The Box

Box:Flush With The Ground

Body Up/Down Range:5mm

Spindle:Rotate 90°, Direction Matches Door Swing

Stage-1 Valve:90°-20°

Stage-2 Valve:20°-0°

Content Summary

2:18 3D Floor Spring Guide: Mark Axis, Trough-Edge >14mm, Box Flush, Set Spring After Curing, Spindle 90° With Swing, Level Door Vertical (5mm), Tune Speed With Stage-1/2 Valves.

Site Focus

For Door Installers And Contractors: Hanging Sliding Doors — Two Offset Doors On One Rail Need Precise Alignment And Leveling. Grey-Background 3D Demo: Track Fitting Prep, Marking Lines, Hanging, Laser-Vertical Door Leveling, Stops And Anti-Balance Wheels, Final Door Effect Check.

Engineering Detail

Clean Track:Ensure The Track Is Clean Before Installing Accessories

Pulley:Loosen Screws Until The Pulley Detaches (Don't Remove Screws); Screw Must Not Protrude Above The End Face Or Wheels Won't Assemble

Trim:Center Trim Offset Every 250mm; Side Trim Every 250mm; Mark Centers Of The Two Tracks Perpendicularly

Hang:Note The Corresponding Slot For The Lower Pulley

Level:Keep Left Side Same Height (4mm Gap From Track); Right Side Referenced By Laser Vertical Line To Make Door Vertical

Side Vertical:Use A Level For The Side Vertical Line; Adjust The Bottom Locator With A Hex Wrench, Keep Fixtures And Screw Vertical, Push To The Slot Bottom Then Fix

Stops:Measure The Door-Opening Gap, Move Stops The Same Distance, Install The Rest The Same Way

Anti-Balance Wheel:Install Anti-Balance Wheel; Light Panels May Jump — Lock The Adjusting Screw To Reduce Bounce

Trim Cover:Install Door Trim Cover; Distinguish Wool-Strip And Non-Wool-Strip Versions

Result Validated

Complete The 40-System Two-Door Offset Hanging Install: Clean Track, Pre-Set Pulleys And Trim (250mm Spacing), Hang On Center Mark Lines, Level Both Doors Vertical With Laser (4mm Gap), Fit Stops, Anti-Balance Wheels And Lock Adjusting Screws, Then Fit Wool/Non-Wool Trim Covers, And Check Sliding Effect.

Technical Index

System:40 Series Hanging Rail, Two Doors Offset

Trim Spacing:Center And Side Trim Every 250mm

Door-To-Track Gap:4mm

Level Reference:Laser Vertical Line

Anti-Bounce:Lock Adjusting Screw To Reduce Panel Jump

Content Summary

4:05 3D Demo: 40-System Two Offset Hanging Doors. Clean Track, Loosen Pulley Screws, Trim At 250mm, Hang On Slot, Level Vertical (4mm), Fit Stops And Anti-Balance Wheels, Lock Screws, Check Sliding.