| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 690 x 690 x 1440 mm | |
|---|---|---|
| Seat width | 510 mm | |
| Seat depth | 510 mm | |
| Maximum seat height | 530 mm | |
| Backrest height | 580 mm | |
| Headrest size | 330 x 180 mm | |
| Armrest height above seat | 230 mm | |
| Five-star base diameter | 680 mm | |
| Caster diameter | 65 mm | |
| Lumbar support pad size | 220 x 380 mm per pad | |
| 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 | 23 kg | |
|---|---|---|
| Maximum recommended user weight | 150 kg | |
| Seat foam density | 55 kg/m³ | |
| Seat foam thickness | 80 mm | |
| Back mesh abrasion resistance | 60000 Martindale cycles | |
| Seam stitch pitch | 8 stitches per 30 mm | |
| Warranty period | 3 years | |
| Available color options | 1 | |
| 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 pads | Breathable black polyester mesh | |
|---|---|---|
| Seat cushion core | Molded high-density polyurethane foam | |
| Seat upholstery | Woven black mesh fabric | |
| Structural frame | Reinforced nylon (PA66) | |
| Armrest pads | Soft polyurethane (PU) padding | |
| Armrest support posts | Reinforced nylon with height adjustment lock | |
| Five-star base | Glass-fiber reinforced nylon | |
| Gas lift cylinder | Chrome-plated steel Class 4 pneumatic cylinder | |
| Casters | PU tread with nylon hub, dual-wheel design | |
| 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 |
Adjustment / rotation / tilt / mobility / storage features
| 360-degree swivel rotation | Full 360° horizontal rotation enabled by central swivel mechanism | |
|---|---|---|
| Seat height adjustment | 100 mm vertical travel via pneumatic gas lift, controlled by under-seat lever | |
| Backrest recline | 135° maximum recline angle with 4-position tilt lock | |
| Tilt tension adjustment | User-adjustable tension dial under seat to match user weight | |
| Headrest adjustment | 100 mm vertical height adjustment and 30° tilt for neck support | |
| Split lumbar support | Independent dual back pads that contour to left and right back muscles | |
| Smooth rolling mobility | Dual-wheel casters roll on hard floors and low-pile carpet without marking | |
| 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-plan office workstations | Suitable for 8 hour daily desk work with ergonomic back support | |
|---|---|---|
| Home office spaces | Fits compact home study areas with standard desk dimensions | |
| Conference/meeting rooms | Provides adjustable support for meetings of varying duration | |
| Executive private offices | Offers premium ergonomic support for long-duration desk tasks | |
| Coworking spaces | Durable construction supports frequent user adjustment and shared 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 | Applicable for office chair dimensional and safety design requirements | |
|---|---|---|
| EN 1335-2:2018 | Applicable for office chair mechanical strength and durability performance | |
| EN 1335-3:2018 | Applicable for office chair test methods for structural verification |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applicable for general-purpose office chair performance and durability requirements |
|---|
Standards applicable to China-market projects
| GB/T 3326-2016 | Applicable for office chair dimensional stability and measurement requirements | |
|---|---|---|
| GB/T 10357.3-2013 | Applicable for office chair strength and durability mechanical testing | |
| GB 28007-2011 | Applicable for office chair formaldehyde emission and material safety limits |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applicable for office chair dimensional stability and measurement requirements; 2. GB/T 10357.3-2013: Applicable for office chair strength and durability mechanical testing; 3. GB 28007-2011: Applicable for office chair formaldehyde emission and material safety limits; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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