| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 650 x 670 x 1100 mm | |
|---|---|---|
| Seat height range | 450 mm to 550 mm | |
| Seat width | 490 mm | |
| Seat depth | 470 mm | |
| Backrest height | 620 mm | |
| Backrest width | 460 mm | |
| Five-star base diameter | 700 mm | |
| Caster wheel diameter | 50 mm | |
| Gas lift cylinder diameter | 50 mm | |
| Upholstered seat cushion thickness | 50 mm | |
| Plywood shell thickness | 12 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 | 18 kg | |
|---|---|---|
| Maximum user weight capacity | 150 kg | |
| Gas lift stroke length | 100 mm | |
| Backrest recline angle range | 12 degrees | |
| Base static load rating | 1136 kg | |
| Caster rolling durability | 100000 cycles | |
| Seam stitch pitch | 3 mm | |
| Foam density (seat cushion) | 45 kg/m³ | |
| Foam density (backrest) | 35 kg/m³ | |
| Fabric abrasion resistance (Martindale) | 50000 cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Outer shell structure | 12mm bent laminated plywood with walnut wood grain veneer finish | |
|---|---|---|
| Seat and back upholstery | Dark brown faux leather (PU leather) with edge stitching | |
| Seat cushion core | High resilience polyurethane foam, 50mm thickness, 45kg/m³ density | |
| Back cushion core | Molded polyurethane foam, 30mm thickness, 35kg/m³ density | |
| Five-star base | Polished chrome-plated steel, 2mm wall thickness, polished mirror finish | |
| Height adjustment mechanism | Class 3 nitrogen-filled pneumatic gas lift, 50mm outer diameter, chrome plated | |
| Tilt control mechanism | 3mm thick steel plate synchronized tilt chassis, black powder coated finish | |
| Caster wheels | 50mm diameter black polyurethane dual-wheel casters, hard/soft floor compatible | |
| Armrests | Integral bent plywood arm caps matched to seat shell finish, no separate padding | |
| Upholstery adhesive and staples | Low-VOC industrial upholstery adhesive, galvanized steel staples | |
| Outer structural shell | 12mm bent laminated plywood with walnut wood grain veneer finish, multi-ply cross-laminated construction | |
| Seat and back contact surface upholstery | Dark brown PU faux leather with precision edge stitching, 1.2mm thickness |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic height adjustment via side actuating lever, 100mm total travel, adjusts seat from 450mm to 550mm floor to seat height | |
|---|---|---|
| Synchronized backrest tilt | Synchronized tilt that moves seat and backrest in 1:1.8 ratio, up to 12 degree recline, with adjustable tilt tension control | |
| Smooth rolling mobility | Dual-wheel polyurethane casters roll freely on hardwood, tile and carpeted floors without scratching surfaces | |
| Integrated fixed armrest support | Curved bentwood armrests positioned 220mm above seat surface to support forearms during typing and meeting use | |
| Contoured lumbar support | Curved backrest shell and foam shaping provides built-in lumbar support aligned to the natural lower back curve | |
| Tilt lock function | Lockable upright position for focused task work, unlockable for relaxed recline during meetings or breaks | |
| Floor stability | Five-point base geometry provides tip resistance in all directions when user leans or reaches, meeting standard office chair stability requirements | |
| Synchronized seat-back tilt | Synchronized tilt mechanism moves seat and backrest in 1:1.8 ratio, enables 12 degree maximum back recline, with rotary tension knob under seat to adjust resistance to match 150 kg user weight | |
| Lockable upright seating position | Push-pull operation of the main adjustment lever locks the mechanism in full upright position for focused task work, unlocks to allow free recline for meetings or short breaks | |
| Omnidirectional rolling mobility | Five dual-wheel polyurethane casters provide 360-degree swivel movement, roll freely on hardwood, tile and low-pile carpet without scratching floor surfaces | |
| Integrated fixed forearm support | Continuous bent plywood armrests are positioned 220mm above seat surface, with 70mm wide contact area to support forearms during typing and meeting use | |
| Contoured fixed lumbar support | Curved tall backrest shell and molded foam shaping provides built-in lumbar support aligned to the 3rd to 5th lumbar vertebrae for adult users |
Verified carton / gross weight / assembly / loading data
| Number of shipping cartons | 1 carton | |
|---|---|---|
| Shipping carton dimensions | 680 x 580 x 670 mm | |
| Gross shipping weight | 22 kg | |
| Shipping volume per unit (CBM) | 0.264 CBM | |
| Required assembly time | 20 minutes | |
| 20ft GP container loading quantity | 210 units | |
| 40ft HC container loading quantity | 510 units | |
| Packaging materials | 5-ply corrugated carton, expanded polystyrene edge protectors, polyethylene dust bag, hardware pack with hex key and assembly instructions | |
| Reference Package Count | 1 set / 2 cartons | |
| Reference Assembly Time | 40 minutes per set |
Recommended spaces / users / usage modes
| Executive private offices | Suitable for senior executive and manager offices, mid-century walnut finish matches premium wood desk and casegood finishes to create a cohesive professional workspace | |
|---|---|---|
| Boardroom and conference rooms | Appropriate for formal boardroom and conference room seating, slim profile maintains unobstructed sight lines around conference tables, while swivel and tilt function supports multi-hour meetings | |
| Home office studies | Ideal for residential home offices, warm wood finish complements residential interior design while providing commercial-grade ergonomic support for daily work | |
| Co-working shared workspaces | Durable construction and easy-to-clean faux leather upholstery holds up to high-frequency shared use, with classic style that fits a range of co-working design schemes | |
| Design studio and creative workspaces | Decorative bent plywood construction provides a design-forward statement piece for creative offices, architecture firms and design studios prioritizing aesthetic alongside function | |
| Boutique hotel business centers | Suitable for hotel business centers and guest work areas, premium finish enhances guest experience while supporting short-term work use | |
| High-end co-working shared spaces | Durable 50000-cycle PU upholstery and steel structural components hold up to high-frequency shared use, with timeless design that fits flexible co-working office design schemes | |
| Design and creative studio workspaces | Iconic bent plywood construction provides a design-forward statement piece for architecture firms, design studios and creative agencies that prioritize aesthetic alongside functional ergonomics |
EU Market Access Requirements* EN Standards
| EN 1335-1:2020 | Office furniture - Office work chairs - Part 1: Dimensions, determination of dimensions | |
|---|---|---|
| EN 1335-2:2018 | Office furniture - Office work chairs - Part 2: Safety requirements | |
| EN 1335-3:2020 | Office furniture - Office work chairs - Part 3: Test methods | |
| EN 1022:2018 | Domestic furniture - Seating - Determination of stability |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Office Chairs - General purpose |
|---|
Standards applicable to China-market projects
| GB/T 3326-2016 | Applicable standards and test results require confirmation | |
|---|---|---|
| GB/T 10357.2-2013 | Applicable standards and test results require confirmation | |
| GB/T 10357.3-2013 | Furniture mechanical performance test: chair and stool strength and durability | |
| GB 18584-2001 | Applicable standards and test results require confirmation |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applicable standards and test results require confirmation; 2. GB/T 10357.2-2013: Applicable standards and test results require confirmation; 3. GB/T 10357.3-2013: Furniture mechanical performance test: chair and stool strength and durability; 4. GB 18584-2001: Applicable standards and test results require confirmation; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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