| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 565 x 700 x 1250 mm | |
|---|---|---|
| Seat width | 500 mm | |
| Seat depth | 550 mm | |
| Backrest width | 420 mm | |
| Backrest height | 750 mm | |
| Seat height from floor | 525 mm | |
| Armrest height above seat | 210 mm | |
| Armrest height from floor | 735 mm | |
| Seat cushion thickness | 65 mm | |
| Five-star base diameter | 700 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 | 15 kg | |
|---|---|---|
| Maximum static load capacity | 136 kg | |
| Height adjustment travel | 80 mm | |
| Tilt lock angle range | 15 degrees | |
| Caster rolling durability | 50000 cycles | |
| Foam density | 45 kg/m³ | |
| Recommended user weight | 120 kg | |
| 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
| Seat and back upholstery | 1.5mm thick black PU leather | |
|---|---|---|
| Seat core padding | High-density resilient polyurethane foam | |
| Backrest padding | Contoured high-density shaping foam | |
| Armrest frames | 1.2mm thick chrome-plated cantilever steel | |
| Armrest pads | Soft black molded PU padding | |
| Five-star base | 1.5mm thick chrome-plated welded steel | |
| Internal frame | 1.2mm thick reinforced steel seat pan and back frame | |
| Casters | 50mm diameter black polyurethane ball-bearing wheels | |
| Pneumatic lift | Class 3 chrome-plated steel gas cylinder | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Gas-lift Engineering Specification | Recommended Class 4; outer tube 50 mm; stroke 100 mm |
Adjustment / rotation / tilt / mobility / storage features
| Pneumatic height adjustment | Lever-operated gas lift adjusts seat 525 mm above floor | |
|---|---|---|
| 360-degree swivel | Full rotation enabled by central gas lift bearing | |
| Tilt tension adjustment | Under-seat knob adjusts recline resistance to match user weight | |
| Upright tilt lock | Single-position lock secures backrest in vertical working position | |
| Smooth rolling mobility | Five dual casters support movement on hard floors and low-pile carpet | |
| Waterfall seat edge | Curved front seat edge reduces leg pressure during extended sitting | |
| Integrated lumbar support | Contoured mid-back zone supports natural spine curvature | |
| Fixed arm support | Rigid cantilever armrests provide stable forearm support during desk work | |
| 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 office workstations | Durable, mobile design supports daily 8-hour desk work for general staff | |
|---|---|---|
| Conference and meeting rooms | Formal upright profile suits group discussion and presentation seating | |
| Home office workspaces | Compact footprint and professional finish fit residential desk setups | |
| Reception and waiting areas | Polished chrome and black aesthetic matches formal reception interiors | |
| Manager private offices | High-back design offers appropriate upper-back support for executive desks | |
| 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 performance requirements | |
|---|---|---|
| EN 1335-2:2018 | Applicable for office chair mechanical strength and durability testing | |
| EN 1022:2019 | Applicable for seating stability testing for domestic and contract use |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applicable for general-purpose office chair performance and durability | |
|---|---|---|
| ANSI/BIFMA X5.4-2020 | Applicable for lounge and executive seating structural requirements |
Standards applicable to China-market projects
| GB/T 3324-2017 | Applicable for metal furniture surface coating adhesion and quality | |
|---|---|---|
| GB 18584-2001 | Applicable for volatile organic compound limits in furniture materials |
This product must meet the following technical requirements: 1. GB/T 3324-2017: Applicable for metal furniture surface coating adhesion and quality; 2. GB 18584-2001: Applicable for volatile organic compound limits in furniture materials; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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