| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 680 x 670 x 1370 mm | |
|---|---|---|
| Seat height range maximum | 550 mm | |
| Seat width | 525 mm | |
| Seat depth | 500 mm | |
| Backrest height | 760 mm | |
| Headrest height adjustment travel | 135 mm | |
| Five-star base diameter | 350 mm | |
| Caster diameter | 60 mm | |
| Armrest height adjustment travel | 50 mm | |
| Armrest inner width | 500 mm | |
| Seat cushion thickness | 110 mm | |
| Backrest width | 510 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
| Net weight | 18 kg | |
|---|---|---|
| Recommended static load capacity | 181 kg | |
| Seat foam density | 60 kg/m³ | |
| Foam rebound rate | 60% | |
| Mesh abrasion resistance | 100000 cycles | |
| Recommended user height range maximum | 190 cm | |
| Recommended daily usage duration | 8 hours | |
| Seam stitch pitch | 8 mm | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | Breathable polyester mesh | |
|---|---|---|
| Seat cushion core | High-resilience molded polyurethane foam | |
| Seat surface upholstery | Stretchy black woven fabric | |
| Internal seat substrate | 14 mm thick plywood | |
| Back frame | Glass-fiber reinforced nylon | |
| Armrest pads | Soft polyurethane padding on nylon supports | |
| Gas lift cylinder | Carbon steel with black powder coat | |
| Five-star base | Reinforced black nylon | |
| Caster wheels | Polyurethane tread with nylon hub | |
| Chassis mechanism | 2.5 mm thick stamped steel | |
| 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 with 130 mm stroke, adjusts between 550 mm seat height | |
|---|---|---|
| Swivel function | 360° full rotation around central axis | |
| Backrest recline | Tilt range up to 135° from upright, with tension adjustment knob under seat | |
| Recline lock | Lockable at upright and multiple recline positions | |
| Headrest adjustment | 135 mm height adjustment plus 30° angle rotation | |
| Lumbar support | Height-adjustable curved lumbar pad in lower back zone | |
| Armrest adjustment | 50 mm vertical height adjustment to match desk height | |
| Mobility | Smooth rolling on hard floors and low-pile carpet via 60 mm dual-wheel casters | |
| 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
| Private office workspace | Provides 8-hour ergonomic support for focused work at standard height desks | |
|---|---|---|
| Open plan workstation | Neutral black design fits standard office layouts with smooth rolling mobility | |
| Home office setup | Adjustable features accommodate shared use across multiple family members | |
| Meeting and conference rooms | Swivel and recline functions support long collaborative sessions | |
| Height-adjustable desk compatibility | 550 mm maximum seat height pairs with sit-stand desk elevation ranges | |
| Hot-desking environments | Quick adjustment controls allow fast reconfiguration for different users | |
| Carpeted and hard floor spaces | PU casters roll smoothly without damaging floor surfaces | |
| Recommended Matching Desk Size | 2.4 m executive desk |
EU Market Access Requirements* EN Standards
| EN 1335-1:2020 | Applies to office chair dimensional safety and functional performance requirements for commercial use | |
|---|---|---|
| EN 1335-2:2018 | Applies to mechanical strength, stability and durability testing for office work chairs | |
| EN 1022:2018 | Applies to stability testing for domestic and contract seating products |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair safety, durability and structural performance standards | |
|---|---|---|
| BIFMA X5.1-2017 Clause 7 | Applies to caster rolling load and cycle durability requirements |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office furniture seating dimensional accuracy and stability testing for procurement acceptance | |
|---|---|---|
| GB/T 10357.3-2013 | Applies to mechanical strength and durability testing for office chair seats and backrests | |
| GB 28007-2011 | Applies to caster wheel strength and rolling durability requirements for office chairs |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office furniture seating dimensional accuracy and stability testing for procurement acceptance; 2. GB/T 10357.3-2013: Applies to mechanical strength and durability testing for office chair seats and backrests; 3. GB 28007-2011: Applies to caster wheel strength and rolling durability requirements for office chairs; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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