| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 650 x 640 x 1060 mm | |
|---|---|---|
| Seat width | 490 mm | |
| Seat depth | 430 mm | |
| Seat height adjustment range (max value) | 520 mm | |
| Seat cushion thickness | 60 mm | |
| Backrest width | 420 mm | |
| Backrest height | 550 mm | |
| Armrest height above seat | 180 mm | |
| Five-star base tip-to-tip width | 640 mm | |
| Minimum overall height (fully lowered) | 960 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 maximum user weight | 136 kg | |
|---|---|---|
| Chair net weight | 12 kg | |
| Tilt lock maximum angle | 12 degrees | |
| Caster rolling durability cycles | 40000 cycles | |
| Seat foam density | 45 kg/m³ | |
| Seat foam rebound rate | 45% | |
| Mesh upholstery abrasion resistance | 50000 Martindale cycles | |
| Seam stitch pitch | 8 stitches per inch | |
| 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 | |
|---|---|---|
| Backrest frame | Reinforced nylon with 15% fiberglass | |
| Seat cushion foam | High-density molded polyurethane foam | |
| Seat core | 12 mm thick plywood | |
| Armrests | Fixed black polypropylene with flat top pad | |
| Five-star base | Reinforced injection-molded nylon | |
| Casters | 60mm twin-wheel PA (nylon) casters | |
| Gas lift | Steel hydraulic pneumatic cylinder | |
| Seat upholstery | Breathable woven mesh fabric | |
| Mechanism chassis | 2.5 mm thick steel plate | |
| 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 | 100 mm stroke pneumatic adjustment via under-seat lever | |
|---|---|---|
| 360-degree swivel | Full rotation enabled by central gas-lift swivel joint | |
| Tilt function | Lockable backward tilt with adjustable tension control | |
| Mobility | Smooth rolling on hard floors and low-pile carpet via twin casters | |
| Lumbar support | Fixed contoured built-in lumbar support in mid-back section | |
| Tilt locking | Single-position upright lock for focused desk work | |
| Armrest function | Fixed-height arm support for forearm resting during typing | |
| 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
| Office workstation use | Suitable for standard desk work with 760 mm work surface height | |
|---|---|---|
| Home office use | Compact footprint fits small home study or workspace desks | |
| Conference room seating | Fixed armrest design suitable for short to medium duration meetings | |
| Open plan office deployment | Durable construction for high-traffic shared workstation areas | |
| Target user group | Suitable for adults 185 cm in height for ergonomic seated posture | |
| Floor compatibility | Use on hard wood, tile, and low-pile carpeted office floors | |
| 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
| Office furniture safety applicability | EN 1335:2020 | |
|---|---|---|
| Office chair mechanical strength applicability | EN 1728:2012 |
US and Canada office-furniture standards
| Office chair general purpose applicability | ANSI/BIFMA X2017 | |
|---|---|---|
| Caster durability applicability | ANSI/BIFMA X2017Clause 17 |
Standards applicable to China-market projects
| Office chair strength and durability applicability | GB/T 3326 | |
|---|---|---|
| Office chair mechanical safety applicability | GB 28007 |
This product must meet the following technical requirements: 1. Office chair strength and durability applicability: GB/T 3326; 2. Office chair mechanical safety applicability: GB 28007; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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