| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 620 x 680 x 1280 mm | |
|---|---|---|
| Seat width | 510 mm | |
| Seat depth | 415 mm | |
| Seat height range (floor to seat top) | 540 mm | |
| Backrest height (seat top to headrest top) | 670 mm | |
| Backrest width (lumbar zone) | 460 mm | |
| Backrest width (upper thoracic zone) | 410 mm | |
| Armrest height above seat | 210 mm | |
| 5-star base diameter | 680 mm | |
| Headrest width | 280 mm | |
| Armrest span (outer edge to edge) | 620 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
| Maximum recommended user weight | 150 kg | |
|---|---|---|
| Net product weight | 20 kg | |
| Seat foam density | 45D | |
| Seat foam rebound rate | 45% | |
| Cushion padding thickness | 80 mm | |
| Backrest mesh abrasion resistance | 50000 cycles | |
| Caster rolling durability cycles | 100000 cycles | |
| Recline angle range (upright to tilted) | 120° | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | 100% polyester breathable mesh | |
|---|---|---|
| Seat cushion core | High-density moulded polyurethane foam | |
| Seat support pan | 12mm thick plywood or reinforced polypropylene | |
| Structural frame and armrests | Glass-fiber reinforced polypropylene, matte grey finish | |
| Armrest top padding | Soft polyurethane pad over hard PP arm shell | |
| Height adjustment gas lift | Steel pneumatic cylinder, Class 3 rating | |
| Tilt mechanism chassis | 2.5mm thick stamped steel plate | |
| 5-star base | Matte grey painted steel or glass-fiber nylon | |
| Casters | 60mm diameter polyurethane twin-wheel casters | |
| Headrest padding | Breathable mesh over curved PP support frame | |
| Seat upholstery fabric | Wear-resistant polyester fabric over foam | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | 100mm vertical travel via Class 3 gas lift | |
|---|---|---|
| 360-degree swivel rotation | Full rotation around central gas lift axis | |
| Backrest tilt function | Tilt with adjustable tension and upright lock | |
| Headrest adjustment | Vertical height and pivot angle adjustment | |
| Integrated lumbar support | Fixed contoured lumbar zone in mesh back | |
| Smooth rolling mobility | Dual-wheel casters for hard/soft floor use | |
| Tilt tension control | User-adjustable spring tension for body weight | |
| Upright position lock | Locks backrest in vertical working position | |
| 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
| Office workstation use | Suitable for daily 8-hour desk work in open or private offices | |
|---|---|---|
| Home office setup | Ideal for remote work and personal study spaces | |
| Meeting and conference rooms | Appropriate for conference room seating for extended meetings | |
| Single-user task seating | Designed for individual users up to 150kg weight | |
| Co-working space deployment | Durable construction for high-traffic shared work environments | |
| Height-adjustable desk pairing | Compatible with sit-stand desks across 1200 mm work surface heights | |
| 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 | Applicable European standard for office chair dimensions and safety | |
|---|---|---|
| EN 1335-2:2018 | Applicable European standard for office chair strength and durability | |
| EN 1335-3:2009 | Applicable European standard for office chair stability testing |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applicable North American standard for office chair safety and performance | |
|---|---|---|
| BIFMA X5.1-2017 Clause 5 | Applicable for base static load and caster durability testing | |
| Static load capacity of 5-star base | 1136 kg |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applicable standard for office furniture dimensional accuracy testing | |
|---|---|---|
| GB 28007-2011 | Applicable for office chair stability, strength and durability requirements | |
| GB/T 26665-2011 | Applicable for caster and swivel chair mechanical performance |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applicable standard for office furniture dimensional accuracy testing; 2. GB 28007-2011: Applicable for office chair stability, strength and durability requirements; 3. GB/T 26665-2011: Applicable for caster and swivel chair mechanical performance; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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