| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 670 x 620 x 1090 mm | |
|---|---|---|
| Seat width | 490 mm | |
| Seat depth | 460 mm | |
| Seat height range (floor to seat top) | 520 mm | |
| Backrest height | 580 mm | |
| Armrest height above seat | 180 mm | |
| Seat cushion thickness | 50 mm | |
| Five-star base diameter | 620 mm | |
| Backrest frame width | 505 mm | |
| Minimum overall height | 990 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 | 12 kg | |
|---|---|---|
| Maximum static weight capacity | 136 kg | |
| Recommended user weight | 110 kg | |
| Seat foam density | 45 kg/m³ | |
| Seat foam rebound rate | 45% | |
| Back mesh abrasion resistance | 50000 cycles | |
| Base static load rating | 1136 kg | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ | |
| Upholstery Thickness / Abrasion Reference | 1.4 mm / 50000 cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | Grey breathable polyester mesh | |
|---|---|---|
| Backrest frame | Fiberglass-reinforced polypropylene | |
| Seat cushion core | High-density molded polyurethane foam | |
| Seat upholstery | Wear-resistant grey polyester fabric | |
| Armrests | Rigid light grey polypropylene | |
| Five-star base | Light grey glass-fiber reinforced nylon | |
| Gas lift column | Black painted steel, Class 3 | |
| Casters | Black polyurethane dual-wheel casters | |
| Tilt mechanism plate | 2.5mm thick cold-rolled steel | |
| Seat inner support board | 12mm thick multi-layer plywood | |
| Seam stitch pitch | 8 stitches per 30mm | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | 100mm vertical stroke via pneumatic gas lift | |
|---|---|---|
| Tilt function | 12-degree backward tilt with upright position lock | |
| Tilt tension adjustment | User-adjustable tension knob under seat | |
| Swivel function | 360-degree full rotation around central column | |
| Mobility function | Five dual-wheel casters for multi-directional rolling | |
| Lumbar support | Fixed contoured lumbar support zone integrated into back | |
| Armrest support | Fixed T-shaped armrests at 180mm above seat | |
| 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 workstations | Suitable for 8-hour daily desk work in open plan offices | |
|---|---|---|
| Home office setups | Compact footprint fits small home desk spaces | |
| Conference and meeting rooms | Uniform mid-back design suitable for collaborative meeting spaces | |
| Coworking spaces | Durable construction supports high-frequency shared use | |
| Administrative staff work areas | Ergonomic lumbar support reduces fatigue for administrative tasks | |
| 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 seating safety | EN 1335:2020 | |
|---|---|---|
| Office chair strength testing | EN 1335:2018 | |
| Furniture caster standard | EN 12529:1999 |
US and Canada office-furniture standards
| Office chair performance standard | ANSI/BIFMA X2017 | |
|---|---|---|
| Textile performance standard | ANSI/BIFMA X2019 | |
| Caster rolling durability | 100000 cycles |
Standards applicable to China-market projects
| Office chair safety standard | GB/T 3326 | |
|---|---|---|
| Upholstered furniture durability | GB/T 10357.3 | |
| Formaldehyde emission limit | GB 18584 |
This product must meet the following technical requirements: 1. Office chair safety standard: GB/T 3326; 2. Upholstered furniture durability: GB/T 10357.3; 3. Formaldehyde emission limit: GB 18584; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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