| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 635 x 640 x 1095 mm | |
|---|---|---|
| Backrest width | 430 mm | |
| Backrest height | 570 mm | |
| Seat width | 505 mm | |
| Seat depth | 465 mm | |
| Maximum seat height (floor to seat top) | 525 mm | |
| Minimum seat height (floor to seat top) | 440 mm | |
| Fixed armrest height above seat | 200 mm | |
| Five-star base wheel span diameter | 640 mm | |
| Maximum total height (floor to armrest top) | 725 mm | |
| Seat foam thickness | 70 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
| Recommended maximum static load capacity | 136 kg | |
|---|---|---|
| Recommended user height range | 190 cm | |
| Net product weight | 14 kg | |
| Maximum backrest recline angle | 125 ° | |
| Caster rolling durability cycles | 40000 cycles | |
| Gas lift service cycle rating | 60000 cycles | |
| Seat fabric abrasion resistance | 30000 Martindale cycles | |
| Manufacturer warranty period | 36 months | |
| Available standard color count | 1 | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | Tensioned breathable polyester mesh over PP frame | |
|---|---|---|
| Seat cushion core | 70mm thick high-density polyurethane foam | |
| Seat support board | 12mm thick recycled particleboard internal base | |
| Seat upholstery cover | Woven black polyester fabric, wear-resistant finish | |
| Armrest construction | Fixed PP structure with padded top surface | |
| Five-star base | Glass-fiber reinforced nylon, 2.5mm wall thickness | |
| Height adjustment mechanism | Steel Class 3 gas lift, 50mm tube diameter, 85mm stroke | |
| Tilt mechanism | 2.5mm thick steel butterfly tilt plate with tension adjust | |
| Caster wheels | 50mm diameter PU tread, nylon hub, twin-wheel design | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Gas-lift Engineering Specification | Recommended Class 4; outer tube 50 mm; stroke 100 mm |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic 85mm stroke adjustment via right-side under-seat lever, 525 mm range | |
|---|---|---|
| 360-degree swivel | Full rotation around central gas lift axis for multi-directional access | |
| Backrest tilt function | 125° synchronized recline with user-adjustable tension control | |
| Tilt lock function | Lockable upright position via under-seat lever for focused task work | |
| Integrated lumbar support | Fixed curved lumbar pad built into mesh back for lower back alignment | |
| Rolling mobility | Dual-wheel casters roll freely on hard and soft floor surfaces | |
| Fixed arm support | 200mm high rigid armrests provide stable forearm support during typing | |
| 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
| Open office workstation use | Suited for daily 8-hour seated task work for administrative and clerical staff | |
|---|---|---|
| Home office study space | Compact footprint fits small home desks for remote work and study use | |
| Conference room meeting seating | Mid-back design supports upright posture during short to medium meetings | |
| Training room seating | Rolling mobility allows easy repositioning for flexible training layouts | |
| Reception administrative area | Professional black finish matches standard corporate office decor | |
| 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 strength | EN 1335:2018: Office work chairs, safety strength and durability requirements | |
|---|---|---|
| Office chair dimensional ergonomics | EN 1335:2020: Office work chairs, dimensional ergonomic performance criteria | |
| Office caster durability | EN 12529:1999: Castors for office furniture, rolling and swivel durability |
US and Canada office-furniture standards
| General office chair safety | ANSI/BIFMA X2017: General purpose office chairs, safety and performance standard | |
|---|---|---|
| Office caster performance | ANSI/BIFMA X5.1 Clause 16: Caster durability, rolling and impact resistance |
Standards applicable to China-market projects
| Office chair structural safety | GB/T 10357.2: Mechanical test methods for chair stability and strength | |
|---|---|---|
| Office chair gas lift safety | GB/T 22793: Pneumatic lifting columns for office chairs, safety and durability | |
| Office furniture harmful substance limits | GB 18584: Formaldehyde and heavy metal emission limits for interior furniture |
This product must meet the following technical requirements: 1. Office chair structural safety: GB/T 10357.2: Mechanical test methods for chair stability and strength; 2. Office chair gas lift safety: GB/T 22793: Pneumatic lifting columns for office chairs, safety and durability; 3. Office furniture harmful substance limits: GB 18584: Formaldehyde and heavy metal emission limits for interior furniture; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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