| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 690 x 690 x 1260 mm | |
|---|---|---|
| Seat width | 490 mm | |
| Seat depth | 500 mm | |
| Seat height range (adjusted) | 550 mm | |
| Backrest height | 700 mm | |
| Headrest dimensions | 320 x 180 mm | |
| Armrest height (from seat) | 110 mm | |
| 5-star base diameter | 350 mm | |
| Caster diameter | 65 mm | |
| Armrest-to-armrest width | 660 mm | |
| Seat cushion thickness | 80 mm | |
| Lumbar support protrusion | 30 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 static load capacity | 159 kg | |
|---|---|---|
| Net chair weight | 19 kg | |
| Recommended user weight | 136 kg | |
| Swivel rotation range | 360° | |
| Recline angle range | 126° | |
| Tilt lock positions | 3 positions | |
| Gas lift stroke length | 100 mm | |
| 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 covering | High-elastic breathable polyester mesh | |
|---|---|---|
| Seat cushion fill | 45 kg/m³ high-density polyurethane foam | |
| Seat upholstery | Wear-resistant breathable mesh fabric | |
| Armrest pads | Soft-touch polyurethane padding | |
| Armrest support structure | Reinforced glass-fiber nylon | |
| 5-star base | 2.5 mm thick polished silver die-cast aluminum | |
| Gas lift cylinder | Class 3 50 mm diameter black steel | |
| Tilt mechanism | 3 mm thick stamped steel chassis | |
| Caster wheels | Dual-wheel polyurethane with black nylon housing | |
| Headrest fill and covering | Elastic mesh over curved plastic frame | |
| Lumbar support pad | Curved mesh-covered contoured plastic | |
| Seat pan inner frame | 12 mm thick molded plywood |
Adjustment / rotation / tilt / mobility / storage features
| Headrest adjustment | 2D height and angle adjustment with 50 mm vertical travel | |
|---|---|---|
| Lumbar support adjustment | 2D height and depth adjustment with 55 mm vertical travel | |
| Armrest adjustment | Height adjustment with 40 mm vertical travel and 15° pivot | |
| Seat height adjustment | Pneumatic gas lift adjustment operated by side lever | |
| Tilt function | Synchronized seat and back recline with tension adjustment via red knobs | |
| Tilt lock function | 3-position recline lock at 90°, 110°, and 126° | |
| Mobility function | Omnidirectional rolling on 5 dual-wheel casters | |
| Swivel function | 360° full rotation around central gas lift axis | |
| Tilt tension adjustment | User-adjustable recline resistance via rotating red control knobs | |
| Waterfall seat edge | Contoured front seat edge to reduce leg pressure | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg |
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
| Private office workspace | Suitable for individual workstations requiring 8+ hour daily seated support | |
|---|---|---|
| Home office setup | Ideal for remote work desks with 760 mm standard work surface height | |
| Open plan office task seating | Suitable for shared work zones with smooth-rolling casters for easy movement | |
| Conference room seating | Appropriate for meeting spaces requiring adjustable comfort for 2 hour sessions | |
| Coworking space allocation | Durable construction suits high-turnover shared work environments | |
| IT/design studio workstations | Breathable mesh back supports extended focused work for creative and technical roles | |
| 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 standard for office work chair dimensional and safety requirements | |
|---|---|---|
| EN 1335-2:2018 | Applicable standard for office chair strength, durability and stability performance | |
| EN 1021-1:2014 | Applicable standard for upholstered furniture cigarette ignition resistance testing |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applicable standard for general-purpose office chair safety and performance requirements | |
|---|---|---|
| Caster rolling durability | 100000 cycles |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applicable standard for office furniture chair dimensional accuracy and stability requirements | |
|---|---|---|
| GB/T 38609-2020 | Applicable standard for ergonomic office chair performance test methods for seating | |
| GB 18584-2001 | Applicable standard for indoor furniture formaldehyde emission limit requirements |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applicable standard for office furniture chair dimensional accuracy and stability requirements; 2. GB/T 38609-2020: Applicable standard for ergonomic office chair performance test methods for seating; 3. GB 18584-2001: Applicable standard for indoor furniture formaldehyde emission limit requirements; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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