| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (upright) | 820 x 780 x 1300 mm | |
|---|---|---|
| Seat width | 550 mm | |
| Seat depth | 520 mm | |
| Seat height adjustment range | 500 mm | |
| Backrest total height | 820 mm | |
| Headrest section height | 200 mm | |
| Armrest height from seat | 220 mm | |
| Five-star base diameter | 700 mm | |
| Caster wheel diameter | 60 mm | |
| Extended footrest length | 400 mm | |
| Side panel accent dimension | 380 x 220 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Backrest Padding Thickness | 70 mm | |
| Lumbar Support Zone Height | 240 mm | |
| Clear Width Between Armrests | 540 mm |
Net weight / load capacity / users / durability
| Net weight | 38 kg | |
|---|---|---|
| Recommended static load capacity | 150 kg | |
| Seat foam density | 60 kg/m³ | |
| Lumbar support foam density | 85 kg/m³ | |
| Headrest foam density | 135 kg/m³ | |
| Cushion foam thickness | 100 mm | |
| Backrest foam thickness | 80 mm | |
| Gas lift stroke length | 80 mm | |
| Seam stitch pitch | 8 stitches per 30mm | |
| Upholstery abrasion resistance | 50000 Martindale cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Imported top-grain calf leather | |
|---|---|---|
| Internal support frame | 1.5mm thick welded steel tube | |
| Seat and back padding | High-density resilient polyurethane foam | |
| Five-star swivel base | Polished chrome-plated 2mm thick steel | |
| Armrest padding | Matching top-grain leather over foam cushion | |
| Armrest trim accents | Polished chrome-plated zinc alloy end caps | |
| Side accent panels | Carbon-fiber textured hard composite panel | |
| Caster wheels | Dual-wheel polyurethane tread with nylon core | |
| Footrest support rail | Polished chrome-plated steel bar | |
| Control mechanism housing | Powder-coated steel chassis | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame |
Adjustment / rotation / tilt / mobility / storage features
| Pneumatic seat height adjustment | 80mm stroke via right-side lever, adjusts from 500 mm seat height | |
|---|---|---|
| 360-degree swivel rotation | Full rotation on central gas lift bearing for multi-directional access | |
| Backrest recline function | Locks at 4 positions from 90° upright to 135° recline | |
| Retractable pull-out footrest | Extends 400mm from seat front for napping, retracts flush when not in use | |
| Rocker tension adjustment | Adjustable recline resistance knob to match user weight | |
| Dual-wheel caster mobility | Smooth rolling on hard floors and low-pile carpet with non-marking tread | |
| Fixed padded armrests | Stationary wide arm supports with chrome trim, no height adjustment | |
| Integrated segmented lumbar support | Contoured mid-back padding provides built-in lumbar alignment | |
| Reclined overall depth | 1180 mm | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg | |
| Rotation / Mobility Configuration | 360° swivel with 5-caster multidirectional movement |
Verified carton / gross weight / assembly / loading data
| Reference Package Count | 1 set / 2 cartons | |
|---|---|---|
| Reference Assembly Time | 40 minutes per set | |
| Reference Carton Dimensions | 850× 420× 720 mm | |
| Reference Packaged Gross Weight | 23 kg/set | |
| Reference Carton Volume | 0.26 m³/set | |
| Indicative 20GP Loading | 135 sets at 85% space utilization | |
| Indicative 40HQ Loading | 320 sets at 85% space utilization |
Recommended spaces / users / usage modes
| Executive private office | Fits premium manager or CEO workspaces as primary desk seating | |
|---|---|---|
| Home office use | Suitable for premium home workspaces requiring all-day comfort and napping function | |
| Conference room director seating | Works for head-of-table seating in formal boardrooms | |
| Reception executive lounge | Functions as seating for high-end visitor reception areas | |
| Commercial office nap breaks | Supports short rest breaks during workdays via 135° recline and footrest | |
| Height-adjustable desk compatibility | Adjusts to standard desk heights of 760 mm for ergonomic typing posture | |
| Recommended Matching Desk Size | 2.4 m executive desk | |
| Reference Daily Use Duration | 8 hours/day; confirm by ergonomic testing |
EU Market Access Requirements* EN Standards
| EN 1335-1:2020 | Applies to office chair dimensional, safety and strength requirements for task seating | |
|---|---|---|
| EN 1335-2:2018 | Applies to office chair mechanical safety performance test methods | |
| EN 1022:2018 | Applies to seating stability testing for domestic and contract office use |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair safety, durability and structural performance | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Applies to static load and durability testing for heavy-duty office seating |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office furniture chair dimensional accuracy and stability requirements | |
|---|---|---|
| GB/T 3324-2017 | Applies to general technical requirements for wooden and upholstered office furniture | |
| GB/T 17657-2013 | Applies to test methods for physical and chemical properties of leather and foam |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office furniture chair dimensional accuracy and stability requirements; 2. GB/T 3324-2017: Applies to general technical requirements for wooden and upholstered office furniture; 3. GB/T 17657-2013: Applies to test methods for physical and chemical properties of leather and foam; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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