| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 680 x 650 x 1180 mm | |
|---|---|---|
| Seat width | 520 mm | |
| Seat depth | 500 mm | |
| Seat height range (floor to seat top) | 480 mm | |
| Backrest total height | 720 mm | |
| Backrest width at lumbar region | 480 mm | |
| Armrest height above seat | 180 mm | |
| Armrest pad width | 80 mm | |
| 5-star base radius (center to caster) | 350 mm | |
| Caster diameter | 50 mm | |
| Seat cushion thickness (uncompressed) | 100 mm | |
| Lumbar support pad thickness | 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
| Net chair weight | 22 kg | |
|---|---|---|
| Maximum recommended user weight | 150 kg | |
| Recommended daily usage duration | 8 hours | |
| Seat foam density | 45 kg/m³ | |
| Backrest foam density | 35 kg/m³ | |
| Foam rebound rate | 45% | |
| Caster rolling durability | 100000 cycles | |
| Static tip resistance load (side direction) | 40 kg | |
| Static side tip resistance load | 40 kg | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Outer upholstery | 1.2mm thick tan microfiber faux leather, 50000 double-rub abrasion resistance, UV stabilized to prevent fading, visible smooth matte tan surface with stitched seam detail | |
|---|---|---|
| Seat cushion core | High-density cold-cured polyurethane foam, CFC-free formulation, no added flame retardant additives, 100mm total thickness | |
| Backrest core | Contoured molded polyurethane foam with integrated lumbar padding, 60mm thickness at lumbar zone, 30mm at upper back | |
| Internal seat frame | 15mm thick multi-layer plywood panel, bonded with E0 grade adhesive, supports cushion foam without flex | |
| Internal back frame | 12mm thick curved plywood panel, shaped to match ergonomic back contour, provides rigid support for back padding | |
| 5-star base | Polished chrome-plated A3 steel tube, 2mm wall thickness, mirror polished finish, 70mm center hub diameter | |
| Caster wheels | Black soft polyurethane tread, polypropylene inner hub, 50mm diameter, dual-wheel design, hard floor friendly no-scratch surface | |
| Height adjustment gas lift | Class 3 carbon steel gas lift, 50mm diameter, 100mm vertical adjustment stroke, corrosion-resistant black finish | |
| Seat tilt mechanism | 3mm thick stamped steel synchro-tilt chassis, black powder coated finish, located under seat between base and seat frame | |
| Stitching detail | Nylon-bonded polyester thread, 8 stitches per 30mm seam pitch, matching tan thread color, double stitched along all upholstery edges | |
| 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
| 360-degree swivel rotation | Full unobstructed 360° horizontal rotation enabled by central swivel joint between gas lift and seat mechanism, no rotation stops | |
|---|---|---|
| Pneumatic seat height adjustment | 100mm vertical height adjustment via right-side paddle lever under seat, adjusts between 420mm and 480mm seat height, locks at any selected position via gas lift friction lock | |
| Synchro-tilt back recline | Backrest reclines to 120 degrees from upright position, seat tilts 5 degrees concurrently to maintain proper leg angle, tension adjustable via front knob for user weight, single position lock for upright working posture | |
| Fixed integrated armrests | Padded armrests integrated into seat shell, no height or width adjustment, wrapped in matching tan upholstery, provides fixed forearm support aligned with natural arm position at desk height | |
| Smooth rolling mobility | Five dual-wheel casters roll freely on hard wood, tile, and low-pile carpet floors, soft polyurethane tread prevents floor scratches, no locking caster function visible | |
| Ergonomic lumbar support | Built-in fixed contoured lumbar pad positioned at natural lower back curve, no adjustable lumbar mechanism, maintains neutral spinal alignment during upright seating | |
| 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
| Number of shipping cartons | 1 carton | |
|---|---|---|
| Shipping carton dimensions | 850 x 680 x 580 mm | |
| Gross shipping weight | 26 kg | |
| Shipping volume per unit | 0.334 CBM | |
| Required assembly time | 20 minutes | |
| 20ft GP container loading quantity | 180 units | |
| 40ft HQ container loading quantity | 450 units | |
| Reference Package Count | 1 set / 2 cartons | |
| Reference Assembly Time | 40 minutes per set | |
| Reference Carton Dimensions | 850× 420× 720 mm |
Recommended spaces / users / usage modes
| Executive private office space | Suitable for placement in corporate executive offices, matching wood veneer desks and casegoods for a premium professional appearance | |
|---|---|---|
| Corporate boardroom and meeting spaces | Appropriate for boardroom seating around conference tables, supports upright posture during long meetings, polished base complements formal meeting room finishes | |
| Home office premium workspaces | Fits high-end residential home offices, warm tan color coordinates with light wood and modern residential interior design | |
| General manager and senior staff workstations | Recommended for department head and senior management workstations, provides appropriate ergonomic support for full-shift daily office work | |
| Customer reception and VIP meeting areas | Can be used in high-end reception areas for visitor seating, the premium upholstery conveys professional brand image for client meetings | |
| Senior management workstations | Recommended for department head and senior staff workstations, provides appropriate ergonomic support for 8-hour daily office work, pneumatic adjustment fits standard desk heights | |
| VIP reception and client meeting areas | Can be used in high-end reception areas for visitor seating, premium upholstery conveys professional brand image for client meetings, scratch-resistant casters protect polished reception floors | |
| Recommended Matching Desk Size | 2.4 m executive desk |
EU Market Access Requirements* EN Standards
| Applicable office chair safety standard | EN 1335:2020 (Office furniture - Office work chair - Part 1: Dimensions - Determination of dimensions) | |
|---|---|---|
| Applicable durability standard | EN 1335:2018 (Office furniture - Office work chair - Part 2: Safety requirements) | |
| Applicable surface flammability standard | EN 1021:2014 (Furniture - Assessment of the ignitability of upholstered furniture - Part 1: Ignition source smouldering cigarette) | |
| Office chair dimensional ergonomics standard | EN 1335:2020 (Office furniture - Office work chair - Part 1: Dimensions - Determination of dimensions) | |
| Office chair safety standard | EN 1335:2018 (Office furniture - Office work chair - Part 2: Safety requirements) | |
| Upholstery flammability standard | EN 1021:2014 (Furniture - Assessment of the ignitability of upholstered furniture - Part 1: Ignition source smouldering cigarette) |
US and Canada office-furniture standards
| Applicable office chair performance standard | ANSI/BIFMA X2017(Office Chairs - Tests) | |
|---|---|---|
| Applicable caster durability standard | ANSI/BIFMA X2017Clause 17 (Caster/chair base durability test) | |
| Office chair performance standard | ANSI/BIFMA X2017(Office Chairs - Tests) | |
| Caster and base durability standard | ANSI/BIFMA X2017Clause 17 (Caster/chair base durability test) |
Standards applicable to China-market projects
| Applicable safety standard for office chairs | GB/T 3326(Furniture - Chairs and stools - Determination of dimensions) | |
|---|---|---|
| Applicable mechanical performance standard | GB/T 10357.3(Test of mechanical properties of furniture - Strength and durability of chairs and stools) | |
| Applicable environmental standard | GB 18584(Indoor decorating and refurbishing materials - Limit of harmful substances of wood based furniture) | |
| Office chair dimensional standard | GB/T 3326(Furniture - Chairs and stools - Determination of dimensions) | |
| Office chair mechanical performance standard | GB/T 10357.3(Test of mechanical properties of furniture - Strength and durability of chairs and stools) | |
| Furniture environmental standard | GB 18584(Indoor decorating and refurbishing materials - Limit of harmful substances of wood based furniture) |
This product must meet the following technical requirements: 1. Applicable safety standard for office chairs: GB/T 3326(Furniture - Chairs and stools - Determination of dimensions); 2. Applicable mechanical performance standard: GB/T 10357.3(Test of mechanical properties of furniture - Strength and durability of chairs and stools); 3. Applicable environmental standard: GB 18584(Indoor decorating and refurbishing materials - Limit of harmful substances of wood based furniture); 4. Office chair dimensional standard: GB/T 3326(Furniture - Chairs and stools - Determination of dimensions); 5. Office chair mechanical performance standard: GB/T 10357.3(Test of mechanical properties of furniture - Strength and durability of chairs and stools); 6. Furniture environmental standard: GB 18584(Indoor decorating and refurbishing materials - Limit of harmful substances of wood based furniture); Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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