| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 700 x 690 x 1220 mm | |
|---|---|---|
| Backrest width | 490 mm | |
| Backrest height | 700 mm | |
| 5-star base caster spread diameter | 700 mm | |
| Maximum seat height (floor to seat top) | 550 mm | |
| Minimum seat height (floor to seat top) | 450 mm | |
| Seat depth | 490 mm | |
| Maximum total chair height | 1220 mm | |
| Minimum total chair height | 1120 mm | |
| Gas lift exposed stroke length | 100 mm | |
| Caster wheel diameter | 50 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 chair weight | 20 kg | |
| Gas lift rated cycle life | 300000 cycles | |
| Tilt recline maximum angle | 135 degrees | |
| Caster rolling durability rating | 40000 cycles | |
| Seat foam density | 45 kg/m³ | |
| Back foam thickness | 60 mm | |
| Seat foam thickness | 80 mm | |
| 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 | 1.2mm thick black PU faux leather, wear-resistant, waterproof | |
|---|---|---|
| Seat cushion core | High-density polyurethane foam, 45kg/m³ density, 40% rebound | |
| Backrest cushion core | High-density polyurethane foam, 40kg/m³ density, 45% rebound | |
| Back side frame | 12mm thick bent plywood with walnut wood veneer finish, curved profile | |
| 5-star base | 2.0mm thick chrome-plated polished steel, welded leg construction | |
| Gas lift cylinder | 50mm diameter Class 3 steel pneumatic cylinder, chrome finish | |
| Tilt mechanism chassis | 3.0mm thick stamped steel plate, black powder-coated finish | |
| Caster wheels | 50mm diameter black nylon twin-wheel casters, soft tread for hard floors | |
| Internal support frame | 15mm thick plywood seat pan, steel mounting brackets | |
| Stitching details | 8mm seam pitch, matched black thread, edge-bound upholstery | |
| 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
| Pneumatic seat height adjustment | 100mm vertical travel via side lever, locks at any height within range | |
|---|---|---|
| 360-degree swivel rotation | Full rotational movement around gas lift axis for multi-directional access | |
| Tilt and rock function | Up to 135° backward recline with adjustable tension control knob | |
| Tilt lock mechanism | Locks upright position for focused desk work, unlocks for relaxed recline | |
| Smooth caster mobility | Twin-wheel casters roll on hard floors and low-pile carpet without marking | |
| Armless open side design | No protruding armrests allows tucking fully under standard 720mm height desks | |
| 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
| Executive private office | Sleek modern aesthetic fits professional management workspaces, supports all-day desk work | |
|---|---|---|
| Home office workspace | Compact armless design suits residential work areas, tucks neatly under desks when not in use | |
| Meeting and conference rooms | Polished walnut and black finish coordinates with modern boardroom furniture for visitor seating | |
| Co-working open offices | Durable construction and neutral colorway fits shared flexible workstations, easy to move between desks | |
| Design studio environments | Mid-century modern bentwood aesthetic complements creative workspaces, supports extended seated design tasks | |
| 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 Office furniture - Office work chairs - Dimensions | Applicable dimensional standard for ergonomic desk chair fit | |
|---|---|---|
| EN 1335-2:2018 Office furniture - Office work chairs - Safety requirements | Applicable safety standard covering structural integrity and stability | |
| EN 1335-3:2009 Office furniture - Office work chairs - Test methods | Applicable test methodology for verifying safety and performance |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 Office Chairs - General Purpose | Applicable North American standard for strength, durability and stability requirements |
|---|
Standards applicable to China-market projects
| GB/T 10357.2-2013 Furniture mechanical test: Chair and stool stability | Applicable stability test standard for evaluating backward/sideways tip resistance | |
|---|---|---|
| GB/T 10357.3-2013 Furniture mechanical test: Chair and stool strength/durability | Applicable test standard for seat, backrest and leg load cycle performance |
This product must meet the following technical requirements: 1. GB/T 10357.2-2013 Furniture mechanical test: Chair and stool stability: Applicable stability test standard for evaluating backward/sideways tip resistance; 2. GB/T 10357.3-2013 Furniture mechanical test: Chair and stool strength/durability: Applicable test standard for seat, backrest and leg load cycle performance; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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