| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (max height) | 650 x 465 x 1190 mm | |
|---|---|---|
| Seat width | 505 mm | |
| Backrest width | 420 mm | |
| Backrest height | 700 mm | |
| Five-star base diameter | 700 mm | |
| Max seat height (floor to seat top) | 535 mm | |
| Min seat height (floor to seat top) | 470 mm | |
| Armrest height above seat | 200 mm | |
| Seat depth | 440 mm | |
| Armrest total width | 650 mm | |
| Min overall height (lowest seat) | 1125 mm | |
| Gas lift exposed stroke length | 65 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 user weight capacity | 150 kg | |
|---|---|---|
| Net weight | 18 kg | |
| Cushion foam density | 45 kg/m³ | |
| Cushion foam rebound rate | 40% | |
| Seat foam thickness | 70 mm | |
| Backrest foam thickness | 50 mm | |
| Five-star base static load rating | 1200 kg | |
| Maximum recline angle | 135° | |
| Backrest fatigue cycle rating | 120000 cycles | |
| Caster rolling abrasion rating | 100000 cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Black PU faux leather, 1.0mm thickness | |
|---|---|---|
| Seat cushion core | High-density polyurethane foam, wrapped in fabric liner | |
| Backrest core | Curved polypropylene support frame with bonded PU foam padding | |
| Armrests | Fixed curved polypropylene arm frames with padded top surfaces | |
| Gas lift | Chrome-plated steel Class 3 pneumatic cylinder, 50mm outer diameter | |
| Five-star base | 1.5mm thick chrome-plated polished steel, 5 legs | |
| Casters | 50mm diameter dual-wheel black nylon non-marking casters | |
| Tilt mechanism | 2.5mm thick steel plate chassis with tension adjustment | |
| Stitching | 8mm stitch pitch along seat and back panel seams | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Five-star Base Material Thickness | Metal base wall 3.5 mm; diameter 700 mm |
Adjustment / rotation / tilt / mobility / storage features
| Height adjustment | Pneumatic gas lift adjusts seat height 65mm via right-side under-seat lever | |
|---|---|---|
| Recline function | Chassis allows 135° back tilt with lockable upright position | |
| Tilt tension control | Knob under seat adjusts recline resistance for user weight | |
| 360-degree swivel | Full rotation enabled by central gas lift swivel joint | |
| Mobility | Five dual-wheel casters enable smooth rolling on hard and soft floors | |
| Fixed arm support | Curved armrests provide 200mm elevated support above seat without height adjustment | |
| Lumbar support | Contoured mid-back padded section supports natural lumbar curve | |
| Upholstery abrasion resistance | 30000 Martindale cycles, meets commercial office use durability | |
| 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
| Private office workstations | Suitable for individual staff desks, with height adjustment for desk heights 760 mm | |
|---|---|---|
| Open plan office areas | Durable upholstery and casters suit daily multi-user commercial office use | |
| Home office study spaces | Compact footprint fits small home work areas without excess space | |
| Conference meeting rooms | Professional black finish and swivel function suit temporary meeting seating | |
| Shared workspaces | Non-marking casters and stain-resistant PU upholstery suit high-turnover use | |
| Height-adjustable sit-stand desk setups | Pneumatic seat height adjustment matches variable desk height positions | |
| Reception desk seating | High-back support offers professional appearance for front office areas | |
| Recommended Matching Desk Size | 2.4 m executive desk |
EU Market Access Requirements* EN Standards
| EN 1335-1:2020 | Office work chairs safety requirements, applies to structural stability and strength | |
|---|---|---|
| EN 1335-2:2009 | Office work chairs test methods for strength, durability and stability | |
| EN 1021-1:2014 | Upholstered furniture flammability test for cigarette ignition resistance | |
| EN 12520:2015 | Furniture strength, durability and safety for general seating applications |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Office chairs general purpose standard, applies to load, durability and stability testing | |
|---|---|---|
| ANSI/BIFMA X5.4-2020 | Lounge and executive seating performance requirements for high-back models |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden and upholstered furniture, applies to upholstered components | |
|---|---|---|
| GB 18584-2001 | Limits formaldehyde and heavy metal emissions from furniture interior materials | |
| GB 20210-2006 | Fire safety requirements for upholstered furniture in public and office spaces |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden and upholstered furniture, applies to upholstered components; 2. GB 18584-2001: Limits formaldehyde and heavy metal emissions from furniture interior materials; 3. GB 20210-2006: Fire safety requirements for upholstered furniture in public and office spaces; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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