| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (max height) | 640 x 640 x 1060 mm | |
|---|---|---|
| Backrest dimensions | 470 mm wide x 570 mm tall | |
| Seat surface dimensions | 490 mm wide x 460 mm deep | |
| Seat cushion thickness | 70 mm | |
| Maximum seat height (top of cushion to floor) | 520 mm | |
| Armrest height above seat surface | 190 mm | |
| Five-star base diameter | 640 mm | |
| Minimum total chair height | 960 mm | |
| Minimum seat height (top of cushion to floor) | 420 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 user weight | 125 kg | |
|---|---|---|
| Net weight | 14 kg | |
| Pneumatic gas lift cycle rating | 120000 cycles | |
| Caster rolling durability | 100000 cycles | |
| Seat foam density | 50 kg/m³ | |
| Backrest mesh abrasion resistance | 30000 Martindale rubs | |
| 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 | |
| Five-star Base Static Load Reference | Acceptance target ≥120 kg; chair reference load 150 kg |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest support | Tensioned breathable nylon mesh over PP structural frame | |
|---|---|---|
| Seat core structure | 15mm thick plywood support under high-density polyurethane foam | |
| Seat upholstery | Woven black fabric over foam cushion | |
| Armrest construction | Rigid T-shaped PP armrests with height-adjustable chrome steel support posts | |
| Five-star base | 1.5mm thick chrome-plated polished steel five-prong base | |
| Gas lift cylinder | Chrome-plated steel Class 3 pneumatic lift | |
| Caster construction | 50mm diameter dual-wheel PU soft casters | |
| Control mechanism | 2.5mm thick steel tilt/height chassis under seat | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Tilt Mechanism Plate Thickness | 2.5 mm cold-rolled steel | |
| Five-star Base Material Thickness | Metal base wall 3.5 mm; diameter 700 mm |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | 100mm vertical stroke via side pneumatic lever, 520 mm seat height range | |
|---|---|---|
| Swivel function | 360-degree unlimited rotation around central gas lift axis | |
| Tilt function | Spring-loaded back tilt with tension adjustment, up to 125-degree recline | |
| Mobility | Smooth rolling on five dual-wheel casters for hard/soft floor use | |
| Back support | Contoured lumbar-supporting mesh back for upright seated posture | |
| Seat edge design | Waterfall front seat edge to reduce leg pressure during long seating | |
| Armrest adjustability | Fixed-height rigid armrests aligned for standard desk work surface height | |
| 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 | Suitable for 8-hour daily staff task seating at standard 760 mm desks | |
|---|---|---|
| Home office setup | Compact footprint fits residential workspaces for computer and desk work | |
| Meeting and conference rooms | Mid-back profile provides upright support for short to medium meetings | |
| Training room seating | Swivel and caster design allows easy repositioning during group training sessions | |
| Reception work areas | Professional black mesh appearance suits front-desk and reception staff use | |
| 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 | Applies to office work chair dimensional and safety requirement benchmarks | |
|---|---|---|
| EN 1335-2:2018 | Applies to structural strength and durability performance standards | |
| EN 1335-3:2009 | Applies to test methods for verifying chair performance compliance |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair safety and performance testing benchmarks | |
|---|---|---|
| Five-star base static load capacity | 1136 kg |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office chair dimensional measurement and tolerances for this product category | |
|---|---|---|
| GB/T 10357.2-2013 | Applies to mechanical stability performance testing for upright office seating | |
| GB/T 10357.3-2013 | Applies to seat and back strength and durability testing requirements |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office chair dimensional measurement and tolerances for this product category; 2. GB/T 10357.2-2013: Applies to mechanical stability performance testing for upright office seating; 3. GB/T 10357.3-2013: Applies to seat and back strength and durability testing requirements; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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