| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall upright dimensions | 770 x 800 x 1255 mm | |
|---|---|---|
| Seat width | 550 mm | |
| Seat depth | 550 mm | |
| Adjustable seat height from floor | 570 mm | |
| Seat cushion thickness | 160 mm | |
| Backrest total height above seat | 730 mm | |
| Five-star base diameter | 700 mm | |
| Caster diameter | 50 mm | |
| Armrest height above seat | 240 mm | |
| Extended footrest length from seat front | 350 mm | |
| Retracted footrest clearance | 80 mm | |
| Armrest width | 80 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
| Product net weight | 28 kg | |
|---|---|---|
| Maximum recommended user weight capacity | 227 kg | |
| Chrome five-star base static load rating | 1136 kg | |
| PU leather upholstery abrasion resistance | 50000 double rubs | |
| Seat cushion foam density | 45 kg/m³ | |
| Backrest foam density | 35 kg/m³ | |
| Cushion foam rebound rate | 45% | |
| Caster rolling durability rating | 100000 cycles | |
| Recommended daily continuous use duration | 8 hours | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Outer upholstery | 1.2 mm thick beige PU leather | |
|---|---|---|
| Seat cushion padding | 160 mm thick 45 kg/m³ high-density polyurethane foam | |
| Backrest padding | Contoured 35 kg/m³ high-resilience polyurethane foam with lumbar support bump | |
| Inner support frame | 18 mm thick molded plywood and steel reinforcement frame | |
| Armrest construction | Padded PU surface with dark wood-effect inlay and polished chrome trim | |
| Five-star base | 2 mm thick polished chrome-plated steel tubular structure | |
| Gas lift cylinder | Class 3 chrome-plated steel, 50 mm outer diameter | |
| Recline mechanism plate | 3 mm thick stamped steel with tension adjustment | |
| Footrest assembly | Steel slide rail with padded PU leather surface | |
| Casters | 50 mm diameter dual-wheel polyurethane casters with black finish and chrome accent ring | |
| Seam construction | 8 stitches per 30 mm uniform pitch, matched thread color | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| 360-degree swivel rotation | Full rotation enabled via central gas lift and bearing assembly | |
|---|---|---|
| Pneumatic seat height adjustment | 100 mm vertical stroke operated by under-seat lever | |
| Backrest recline function | 150 degree maximum backward tilt with position lock | |
| Retractable pull-out footrest | 350 mm full extension from under seat for rest positions | |
| Recline tension control | Adjustable resistance knob to match user body weight | |
| Smooth floor mobility | Dual-wheel casters roll on hard floors and low-pile carpet | |
| Recline operation control | Lever mounted on left armrest to activate recline lock and release | |
| Lumbar support | Integrated contoured backrest bump for fixed lower back support | |
| 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 | Suitable for C-suite and managerial workstations with premium aesthetic requirements | |
|---|---|---|
| Home office study | Appropriate for dedicated home workspaces requiring napping and long-sitting comfort | |
| Managerial meeting rooms | Suitable for senior participant seating in internal and client meeting spaces | |
| Supervisor workstations | Recommended for department head work areas requiring ergonomic support | |
| Commercial reception areas | Appropriate for high-end reception seating for important visitors | |
| 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
| Office furniture safety requirements | EN 1335:2020 | |
|---|---|---|
| Office chair strength and durability | EN 1335:2018 | |
| Upholstered furniture surface resistance | EN 14465:2003 |
US and Canada office-furniture standards
| Office chair general purpose performance | ANSI/BIFMA X2017 | |
|---|---|---|
| Office caster performance | ANSI/BIFMA X2017Clause 11 | |
| Gas lift cylinder performance | ANSI/BIFMA X2017Clause 8 |
Standards applicable to China-market projects
| Office chair structural safety | GB/T 3326 | |
|---|---|---|
| Upholstered furniture durability | GB/T 2012 | |
| Office chair mechanical stability | GB/T 10357.3 |
This product must meet the following technical requirements: 1. Office chair structural safety: GB/T 3326; 2. Upholstered furniture durability: GB/T 2012; 3. Office chair mechanical stability: GB/T 10357.3; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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