| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 685 x 700 x 1205 mm | |
|---|---|---|
| Seat width | 505 mm | |
| Seat depth | 460 mm | |
| Backrest height | 570 mm | |
| Headrest width | 315 mm | |
| Headrest height adjustment travel | 60 mm | |
| Seat height adjustment range (floor to seat top) | 520 mm | |
| Armrest height above seat surface | 265 mm | |
| Five-star base tip-to-tip diameter | 700 mm | |
| Headrest assembly width at mounting | 430 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 | 136 kg | |
|---|---|---|
| Net product weight | 19.3 kg | |
| Tilt recline maximum angle | 115 degrees | |
| Seat foam density | 45 kg/m³ | |
| Gas lift service cycle rating | 100000 height adjustments | |
| Caster rolling durability | 40000 cycles | |
| Standard warranty term | 5 years | |
| 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | Tear-resistant breathable polyester mesh | |
|---|---|---|
| Seat cushion core | 40 mm thick high-density molded polyurethane foam | |
| Seat support panel | 12 mm thick plywood inner board | |
| Backrest frame | Nylon-glass fiber reinforced composite | |
| Five-star base | Polished chrome-plated steel, 2 mm wall thickness | |
| Armrest pads | Soft polyurethane padded top on PP support arm | |
| Casters | 60 mm diameter dual-wheel polyurethane | |
| Gas lift cylinder | Class 3 chrome-plated steel, 50 mm outer diameter | |
| Tilt mechanism plate | 3 mm thick stamped steel with tension adjustment | |
| 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
| Pneumatic seat height adjustment | Right-side lever actuates gas lift to adjust seat 85 mm travel | |
|---|---|---|
| Headrest vertical adjustment | Curved neck support slides 60 mm vertically for neck alignment | |
| Backrest tilt and lock | Chassis allows 115° recline with 3 lockable positions and tension control | |
| 360-degree swivel rotation | Full rotation enabled by central gas lift and caster base | |
| Height-adjustable armrests | Padded armrests adjust 80 mm vertically to match desk height | |
| Built-in lumbar support | Contoured mid-back mesh panel supports natural lumbar curve | |
| Smooth rolling mobility | Dual-wheel PU casters roll on carpet and hard floors without scratching | |
| Waterfall seat edge | Contoured front seat edge reduces leg pressure during long sitting | |
| 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
| Office workstation use | Suitable for 8+ hour daily desk work in open or private offices | |
|---|---|---|
| Home office setup | Fits standard 760 mm desk height for remote work spaces | |
| Conference room seating | Appropriate for meeting rooms with adjustable support for varied users | |
| Height range compatibility | Fits users 185 cm tall with adjustable seat and headrest | |
| Floor surface compatibility | PU casters work safely on hardwood, tile and low-pile carpet floors | |
| Color option availability | Standard black finish with custom color options for bulk orders | |
| 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 | Applies to office work chair dimensional safety and strength requirements | |
|---|---|---|
| EN 1335-2:2018 | Applies to mechanical safety and structural performance test methods | |
| EN 1335-3:2009 | Applies to stability and structural durability test criteria |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair durability, strength and stability testing | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Applies to weight capacity verification for users up to 136 kg |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office furniture chair dimensional accuracy and stability testing | |
|---|---|---|
| GB/T 39600-2021 | Applies to formaldehyde emission limits for furniture wood-based components | |
| GB 28007-2011 | Applies to safety requirements for swivel office chairs for adult use |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office furniture chair dimensional accuracy and stability testing; 2. GB/T 39600-2021: Applies to formaldehyde emission limits for furniture wood-based components; 3. GB 28007-2011: Applies to safety requirements for swivel office chairs for adult use; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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