| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 640 x 620 x 1060 mm | |
|---|---|---|
| Seat width | 490 mm | |
| Seat depth | 460 mm | |
| Seat height adjustment range | 520 mm | |
| Backrest height | 570 mm | |
| Backrest width | 470 mm | |
| Armrest height above seat | 190 mm | |
| Seat cushion thickness | 70 mm | |
| Five-star base diameter | 620 mm | |
| Minimum seat height | 420 mm | |
| Minimum total chair height | 960 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 user weight capacity | 125 kg | |
|---|---|---|
| Net product weight | 12 kg | |
| Seat foam density | 42 kg/m³ | |
| Seat foam rebound rate | 45% | |
| Caster rolling durability cycle count | 40000 cycles | |
| 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 | |
| Five-star Base Static Load Reference | Acceptance target ≥120 kg; chair reference load 150 kg |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | Breathable woven elastic mesh | |
|---|---|---|
| Seat upholstery | Woven polyester fabric | |
| Seat cushion core | High-density polyurethane foam | |
| Seat internal support | 12 mm thick plywood seat pan | |
| Frame components | Glass-fiber reinforced PP plastic | |
| Five-star base | Nylon molded five-star base | |
| Gas lift | Steel Class 3 pneumatic cylinder | |
| Casters | 60 mm dual-wheel PU casters | |
| Armrest pads | Fixed PP hard surface arm pads | |
| Mechanism plate | 2.5 mm thick steel tilt mechanism | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic gas lift adjustment via side lever, 100mm stroke | |
|---|---|---|
| 360-degree swivel | Full rotation around central gas lift axis | |
| Tilt function | Synchro rocking tilt with tension adjustment, upright lock position | |
| Tilt lock angle | 12 degree maximum recline angle | |
| Mobility | Smooth rolling on all hard floor and low-pile carpet surfaces | |
| Lumbar support | Fixed contoured frame lumbar curve | |
| Assembly requirement | Knock-down assembly with included hardware | |
| Armrest function | Fixed-height T-armrests for forearm support during desk work | |
| 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 general staff daily desk work, light 8-hour daily use | |
|---|---|---|
| Home office study space | Compact footprint fits small home desk setups for remote work | |
| Meeting room training seating | Lightweight, mobile design supports frequent repositioning in meeting spaces | |
| Computer desk task seating | Ideal for desktop PC use, with fixed armrests at standard desk height | |
| Temporary reception seating | Neutral white-frame teal-seat finish fits modern reception area 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
| EN 1335-1:2020 | Applies to office chair dimensional and safety requirements for task seating | |
|---|---|---|
| EN 1335-2:2018 | Applies to mechanical safety and strength test requirements | |
| EN 1335-3:2009 | Applies to test methods for office task chair stability |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair structural and durability performance | |
|---|---|---|
| BIFMA X5.1 Load Test 5 | Applies to five-star base static load verification requirements | |
| Base static load rating | 113 kg |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office chair dimensional measurement and tolerance verification | |
|---|---|---|
| GB/T 10357.3-2013 | Applies to office chair mechanical strength and durability testing | |
| GB 18584-2001 | Applies to formaldehyde emission limits for wooden furniture components |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office chair dimensional measurement and tolerance verification; 2. GB/T 10357.3-2013: Applies to office chair mechanical strength and durability testing; 3. GB 18584-2001: Applies to formaldehyde emission limits for wooden furniture components; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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