| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (WxDxH) | 640 x 620 x 1130 mm | |
|---|---|---|
| Seat width | 510 mm | |
| Seat depth | 415 mm | |
| Seat height adjustment range (floor to seat top) | 540 mm | |
| Backrest width | 460 mm | |
| Backrest height (seat top to back top) | 670 mm | |
| Armrest height above seat surface | 210 mm | |
| Five-star base diameter | 640 mm | |
| Minimum overall height (floor to back top) | 1030 mm | |
| Caster diameter | 60 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 | |
|---|---|---|
| Net product weight | 12.7 kg | |
| Seat foam density | 40 kg/m³ | |
| Seat foam thickness | 60 mm | |
| Back mesh abrasion resistance | 50000 Martindale cycles | |
| Gas lift stroke length | 100 mm | |
| Caster rolling durability | 40000 cycles | |
| Tilt lock recline angle | 15 degrees | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest support | Tensioned breathable grey mesh over glass-fiber reinforced PP frame | |
|---|---|---|
| Seat cushion core | High-density molded polyurethane foam with CA117 fire-retardant rating | |
| Seat upholstery | Abrasion-resistant grey woven fabric cover | |
| Seat inner support | 12 mm thick plywood base plate under cushion | |
| Armrests | Integrated fixed loop armrests molded from grey fiber-reinforced polypropylene | |
| Five-star base | Reinforced nylon five-star spider base with matte grey finish | |
| Casters | 60mm dual-wheel polyurethane swivel casters with black housing | |
| Height adjustment component | Class 3 steel gas lift with black powder-coated finish | |
| Tilt mechanism | 2.5mm thick steel butterfly tilt plate with tension adjustment knob | |
| Frame finish | Matte light grey molded plastic finish for back and arm surrounds | |
| 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 Class 3 gas lift adjusts seat height 100mm via side lever | |
|---|---|---|
| 360-degree swivel | Full rotation enabled by central swivel joint between seat and base | |
| Recline function | Synchronized back tilt with adjustable tension and 1 lock position | |
| Floor mobility | Dual-wheel PU casters roll smoothly on hard floors and low-pile carpet | |
| Lumbar support | Contoured lower mesh section provides built-in mid-lumbar contact | |
| Arm support | Fixed loop armrests provide stable upper body support during desk work | |
| Weight-activated tilt | Tilt resistance automatically adjusts to match user body weight | |
| 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 | Fits standard 760 mm height office desks for daily staff task work | |
|---|---|---|
| Home office desk setup | Compact footprint fits small home workspaces without taking excess floor space | |
| Meeting room task seating | Fixed armrest design provides consistent seating for temporary meeting use | |
| Computer desk gaming or study use | Breathable mesh back prevents heat buildup during long seated sessions | |
| Coworking space shared seating | Durable commercial-grade components withstand frequent user turnover | |
| Administrative staff workstation | Height adjustment accommodates 185 cm tall users for general office tasks | |
| 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, safety and strength requirements | |
|---|---|---|
| EN 1335-2:2018 | Applies to office chair structural safety test methods | |
| EN 1335-3:2009 | Applies to office chair stability and durability testing |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair load, durability and stability tests |
|---|
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office furniture chair dimensional accuracy and stability testing | |
|---|---|---|
| GB/T 26172.1-2010 | Applies to office swivel chair structural strength and durability requirements | |
| GB 18584-2001 | Applies to furniture interior material formaldehyde emission limits |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office furniture chair dimensional accuracy and stability testing; 2. GB/T 26172.1-2010: Applies to office swivel chair structural strength and durability requirements; 3. GB 18584-2001: Applies to furniture interior material formaldehyde emission limits; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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