| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 645 x 700 x 1250 mm | |
|---|---|---|
| Seat width | 515 mm | |
| Seat depth | 420 mm | |
| Maximum seat height from floor | 555 mm | |
| Backrest width | 505 mm | |
| Backrest height | 580 mm | |
| Headrest height | 95 mm | |
| Armrest height above seat adjustment range | 250 mm | |
| Five-star base radius | 350 mm | |
| Retractable footrest extension length | 400 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 | 150 kg | |
|---|---|---|
| Net weight (chair only) | 18 kg | |
| Gross packaged weight | 22 kg | |
| Caster rolling durability cycles | 98000 cycles | |
| Five-star base static load capacity | 1136 kg | |
| Seat foam density | 50 kg/m³ | |
| Seat foam thickness | 90 mm | |
| Mesh upholstery abrasion resistance | 50000 cycles | |
| 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 woven polyester mesh | |
|---|---|---|
| Seat upholstery | Breathable mesh over high-density foam core | |
| Five-star base | Polished aluminum alloy | |
| Armrest supports | Reinforced nylon with aluminum core | |
| Armrest pads | Soft molded polyurethane | |
| Internal support frame | 1.5mm thick alloy steel | |
| Gas lift cylinder | Chrome-plated steel, Class 4 grade | |
| Casters | Dual-wheel PA+PVC silent casters | |
| Headrest padding | High-density foam wrapped in matching mesh | |
| Footrest surface | Breathable woven polyester mesh | |
| Chassis mechanism | 2.5mm thick pressed steel | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Gas lift operated via side lever, 85mm stroke between 555 mm seat height | |
|---|---|---|
| 360-degree swivel rotation | Full rotation enabled by central gas lift and caster base | |
| 3D armrest adjustment | Height adjustment, 120-degree rotation, 60mm front-back sliding | |
| Headrest adjustment | 50mm height adjustment, 30-degree angle tilt for neck support | |
| Backrest recline function | Synchro tilt with 3-position lock up to 135 degrees, adjustable tension knob | |
| Retractable footrest | 400mm sliding extension under seat for reclined leg support | |
| Adaptive lumbar support | Contoured zoned lumbar panel with 40mm height adjustment | |
| Smooth caster mobility | 360-degree rotating dual casters suitable for hard floors and low-pile carpet | |
| Recline tension control | Knob-adjustable tilt resistance to match user 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 | 680 x 320 x 650 mm | |
|---|---|---|
| Gross shipping weight | 22 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
| Home office workspaces | Suitable for long-duration seated work with full spinal support | |
|---|---|---|
| Corporate open office workstations | Commercial-grade durability for daily multi-user office environments | |
| Manager/executive private offices | Professional black finish and recline/footrest feature for comfort | |
| Gaming and home entertainment use | Recline function and footrest support extended seated leisure use | |
| Height range compatibility | Fits 190 cm tall users with adjustable seat, armrest and headrest | |
| Standard desk compatibility | Works with standard 760 mm height office desks for proper seated posture | |
| Floor surface compatibility | Soft dual casters safe for hardwood, tile and low-pile carpeted floors | |
| Recommended Matching Desk Size | 2.4 m executive desk |
EU Market Access Requirements* EN Standards
| EN 1335-1:2020 | Office furniture - Office work chairs: Dimensions, applies to ergonomic dimension verification | |
|---|---|---|
| EN 1335-2:2018 | Office furniture - Office work chairs: Safety requirements, applies to structural safety testing | |
| EN 1335-3:2009 | Office furniture - Office work chairs: Test methods, applies to mechanical performance validation |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 Clause 5 | Backrest strength test requirement of 667N static load for heavy-duty office chairs | |
|---|---|---|
| Gas lift durability cycles | Recommended references: BIFMA X5.1 |
Standards applicable to China-market projects
| GB/T 3326-2016 | Office furniture: desk, chair and stool dimension standard, applies to seat height and clearance requirements | |
|---|---|---|
| GB/T 10357.3-2013 | Furniture mechanical performance test for chairs and stools, applies to strength and durability testing | |
| GB 18584-2001 | Indoor decoration material: limit of harmful substances in wooden furniture, applies to component emission limits |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Office furniture: desk, chair and stool dimension standard, applies to seat height and clearance requirements; 2. GB/T 10357.3-2013: Furniture mechanical performance test for chairs and stools, applies to strength and durability testing; 3. GB 18584-2001: Indoor decoration material: limit of harmful substances in wooden furniture, applies to component emission limits; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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