| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 650 x 680 x 1210 mm | |
|---|---|---|
| Seat width | 490 mm | |
| Seat depth | 430 mm | |
| Seat height range | 515 mm | |
| Seat cushion thickness | 60 mm | |
| Backrest height | 550 mm | |
| Headrest height | 95 mm | |
| Headrest width | 420 mm | |
| Armrest height above seat | 180 mm | |
| Five-star base diameter | 350 mm | |
| Minimum overall height | 1110 mm | |
| Minimum seat height | 415 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 | 150 kg | |
|---|---|---|
| Suitable user height range | 1880 mm | |
| Net weight | 22 kg | |
| Gas lift cycle rating | 100000 cycles | |
| Mesh abrasion resistance | 50000 double rubs | |
| Seat foam density | 55 kg/m³ | |
| Seat foam rebound rate | 45% | |
| Warranty period | 5 years | |
| 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 | 55kg/m³ high-density molded polyurethane foam | |
| Backrest frame | Glass-fiber reinforced polypropylene | |
| Five-star base | Reinforced nylon (polyamide) | |
| Gas lift cylinder | Steel with black powder coat | |
| Armrest pads | Injection-molded polyurethane | |
| Armrest supports | Reinforced polypropylene | |
| Casters | 60mm diameter polyurethane tread on nylon hub | |
| Internal seat frame | 15mm thick multi-layer plywood | |
| Chassis mechanism | 2.5mm thick stamped steel | |
| Seam stitch pitch | 8 mm | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | 100mm vertical travel via Class 3 gas lift, controlled by under-seat lever | |
|---|---|---|
| Headrest adjustment | Height adjustable with 60° rotation for neck support | |
| Armrest adjustment | 100mm vertical height adjustment to match desk height | |
| Lumbar support | Height-adjustable curved support zone for lower back | |
| Tilt function | 135° synchronized back recline with single-position tilt lock | |
| Swivel function | 360° rotation around central gas lift axis | |
| Mobility function | Smooth rolling on hard floors and low-pile carpet via dual-wheel casters | |
| Tilt tension control | Adjustable resistance knob 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
| Carton dimensions | 850 x 650 x 300 mm | |
|---|---|---|
| Gross weight per carton | 24 kg | |
| 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 | Suits 8-hour daily desk work for general staff, breathable mesh for long sitting comfort | |
|---|---|---|
| Home office setup | Fits compact home workspaces with neutral grey/white color scheme | |
| Conference room use | Appropriate for extended meeting seating with adjustable lumbar support | |
| Height range compatibility | Fits users 1880 mm tall, compatible with standard 760 mm office desks | |
| Co-working space use | Durable construction supports shared multi-user environments with high use frequency | |
| Study room use | Suitable for student and remote worker use with ergonomic spinal support | |
| 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 chair safety requirement | EN 1335:2020 | |
|---|---|---|
| Strength and durability requirement | EN 1335:2018 | |
| Stability requirement | EN 1022:2018 |
US and Canada office-furniture standards
| General purpose office chair standard | ANSI/BIFMA X2017 | |
|---|---|---|
| Gas lift safety requirement | ANSI/BIFMA X5.1 Clause 8 | |
| Caster durability requirement | ANSI/BIFMA X5.1 Clause 12 | |
| Caster rolling durability | 98000 cycles |
Standards applicable to China-market projects
| General safety requirement | GB/T 3326 | |
|---|---|---|
| Surface durability requirement | GB/T 4893.8 | |
| Upholstery durability requirement | GB/T 19082 | |
| Stability requirement | GB/T 10357.2 |
This product must meet the following technical requirements: 1. General safety requirement: GB/T 3326; 2. Surface durability requirement: GB/T 4893.8; 3. Upholstery durability requirement: GB/T 19082; 4. Stability requirement: GB/T 10357.2; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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