| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 625 x 660 x 1240 mm | |
|---|---|---|
| Seat width | 490 mm | |
| Seat depth | 470 mm | |
| Maximum seat height (floor to seat top) | 515 mm | |
| Minimum seat height (floor to seat top) | 415 mm | |
| Backrest height (seat to back top) | 580 mm | |
| Upper backrest width | 390 mm | |
| Armrest height above seat | 190 mm | |
| Maximum headrest height above seat | 700 mm | |
| Five-star base diameter | 350 mm | |
| Caster diameter | 50 mm | |
| Headrest pad dimensions | 280 x 160 x 40 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 | 136 kg | |
|---|---|---|
| Five-star base static load rating | 1000 kg | |
| Chair net weight | 16 kg | |
| Gas lift service life | 100000 height adjustment cycles | |
| Seat foam density | 45D | |
| Seat foam thickness | 50 mm | |
| Mesh back abrasion resistance | 50000 double 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest support panel | Reinforced nylon-fiberglass frame with tensioned breathable mesh | |
|---|---|---|
| Integrated lumbar support | Molded PP contoured support built into back frame | |
| Seat cushion core | 45D high-density molded polyurethane foam | |
| Seat upholstery | Woven black polyester fabric over foam pad | |
| Headrest pad | 30D soft foam wrapped in black fabric, curved for neck support | |
| Armrests | One-piece fixed closed-loop black PP, connected between seat and back frame | |
| Five-star base | Glass-fiber reinforced black nylon, 5 legs with caster sockets | |
| Gas lift cylinder | Black powder-coated steel Class 3 pneumatic cylinder | |
| Casters | 50mm black PU dual-wheel swivel casters | |
| Tilt mechanism | 2.5mm thick stamped steel plate with spring tension | |
| 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 100mm vertical travel via under-seat lever, locks at desired height | |
|---|---|---|
| 360-degree swivel rotation | Full rotation around gas lift axis for multi-directional access | |
| Backrest recline function | Lockable tilt up to 126 degrees from upright position, with tension adjustment | |
| Headrest adjustment | 100mm vertical height adjustment to match user neck position | |
| Mobility function | Smooth rolling on hard floors and low-pile carpet via dual-wheel PU casters | |
| Lumbar support | Fixed contoured dual-lobe support aligns with natural lower back curve | |
| Upright position lock | Locks backrest in fully upright position for focused task 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 workstations | Suitable for 8-hour daily task work with ergonomic lumbar and neck support | |
|---|---|---|
| Home office spaces | Compact 625mm width fits standard home desk setups with seated knee clearance | |
| Conference and meeting rooms | Swivel and recline function supports collaborative meeting and discussion use | |
| Administrative and staff work areas | Fixed armrests provide consistent upper body support for regular desk tasks | |
| Commercial co-working spaces | Durable mesh and foam construction withstands high-frequency multi-user 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 dimensional safety requirements for office work chairs | |
|---|---|---|
| EN 1335-2:2018 | Applies to structural safety and performance requirements for office chairs | |
| EN 1335-3:2009 | Applies to test methods for verifying office chair safety and durability |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general purpose office chair durability, strength and stability requirements | |
|---|---|---|
| Caster rolling durability | 100000 cycles |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to furniture size measurement for office chairs, used to verify published dimensions | |
|---|---|---|
| GB/T 10357.3-2013 | Applies to mechanical strength and stability testing of office seating | |
| GB 18584-2001 | Applies to formaldehyde emission limits for interior decoration furniture materials |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to furniture size measurement for office chairs, used to verify published dimensions; 2. GB/T 10357.3-2013: Applies to mechanical strength and stability testing of office seating; 3. GB 18584-2001: Applies to formaldehyde emission limits for interior decoration furniture materials; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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