| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 690 x 660 x 1310 mm | |
|---|---|---|
| Seat height adjustment range | 520 mm | |
| Seat width | 500 mm | |
| Seat depth | 480 mm | |
| Backrest height | 780 mm | |
| Headrest dimensions | 380 x 220 mm | |
| 5-star base diameter | 700 mm | |
| Caster diameter | 60 mm | |
| Retractable footrest extension length | 460 mm | |
| Armrest height adjustment range | 70 mm | |
| Lumbar support adjustment height | 50 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 | 19.5 kg | |
|---|---|---|
| Maximum recommended user weight | 150 kg | |
| 5-star base static load capacity | 1136 kg | |
| Seat durability cycles | 100000 cycles | |
| Mesh upholstery abrasion resistance | 30000 Martindale rubs | |
| Seat foam density | 55 kg/m³ | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ | |
| Upholstery Thickness / Abrasion Reference | 1.4 mm / 50000 cycles | |
| Five-star Base Static Load Reference | Acceptance target ≥120 kg; chair reference load 150 kg |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | High-elastic breathable polyester mesh | |
|---|---|---|
| Seat padding | 55kg/m³ high-density molded foam | |
| Structural frame | Glass-fiber reinforced light gray nylon/PP | |
| 5-star base | Matte light gray reinforced nylon | |
| Armrest pads | Soft TPU padded contact surface | |
| Gas lift cylinder | Class 4 100mm stroke powder-coated steel | |
| Casters | Dual-wheel PU soft tread with nylon hub | |
| Footrest surface | Textured non-slip TPE padding | |
| Tilt mechanism | 3mm thick cold-rolled steel plate | |
| Seam stitch pitch | 8 stitches per inch | |
| 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 | 100mm vertical travel via Class 4 gas lift, lever-operated | |
|---|---|---|
| Backrest recline | 135-degree max tilt with 3-position lock | |
| Synchro tilt mechanism | 1:2.3 seat-to-back tilt ratio with adjustable tension | |
| 4D armrest adjustment | Height, width, depth and pivot angle adjustable | |
| Headrest adjustment | 60mm height travel and 30-degree angle rotation | |
| Lumbar support adjustment | 50mm vertical travel to align with lower back curve | |
| Retractable footrest | Slide-out extension with 10-degree tilt, stows under seat | |
| 360-degree swivel | Full rotation enabled by central gas lift and base bearing | |
| Smooth rolling | Dual-wheel casters suitable for hard floors and low-pile carpet | |
| 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 | 785 x 640 x 660 mm | |
|---|---|---|
| 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
| Corporate open office workstations | Adjustable support suits long-hour seated work for employees | |
|---|---|---|
| Home office and remote work setups | Recline and footrest support extended work and rest periods | |
| Executive private offices | Premium light gray aesthetic matches modern professional interiors | |
| Co-working and shared workspaces | 360 swivel and rolling design enables flexible repositioning | |
| Height-adjustable standing desk setups | Gas lift adjustment aligns with 1200 mm desk height ranges | |
| 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 requirements | EN 1335:2020 | |
|---|---|---|
| Office chair stability testing | EN 1022:2018 | |
| Castor and wheel performance | EN 12529:1998 |
US and Canada office-furniture standards
| Office chair general purpose standard | ANSI/BIFMA X2017 | |
|---|---|---|
| Gas lift cylinder performance | ANSI/BIFMA X5.1 Clause 8 | |
| Caster durability testing | ANSI/BIFMA X5.1 Clause 12 | |
| Caster rolling durability | 100000 cycles |
Standards applicable to China-market projects
| Office chair mechanical safety | GB/T 10357.3 | |
|---|---|---|
| Upholstery fabric performance | GB/T 21655.1 | |
| Furniture formaldehyde emission | GB 18584 |
This product must meet the following technical requirements: 1. Office chair mechanical safety: GB/T 10357.3; 2. Upholstery fabric performance: GB/T 21655.1; 3. Furniture formaldehyde emission: GB 18584; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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