| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 680 x 650 x 1100 mm | |
|---|---|---|
| Seat width | 500 mm | |
| Seat depth | 480 mm | |
| Seat height range (floor to top of seat) | 520 mm | |
| Backrest width | 490 mm | |
| Backrest height (top of seat to top of back) | 550 mm | |
| Armrest height (top of seat to top of arm) | 210 mm | |
| Armrest width (per arm pad) | 60 mm | |
| 5-star base diameter | 620 mm | |
| Caster diameter | 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
| Recommended static weight capacity | 150 kg | |
|---|---|---|
| Chair net weight range | 18 kg | |
| Seat foam density reference | 45 kg/m³ | |
| Back foam density reference | 35 kg/m³ | |
| Caster rolling durability reference | 100000 cycles | |
| Tilt mechanism cycle reference | 100000 cycles | |
| Seat foam density | 45 kg/m³ | |
| Back foam density | 35 kg/m³ | |
| Tilt mechanism cycle durability | 100000 cycles | |
| Foam compression set resistance | 30% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Black smooth faux leather (PVC/PU blend) with matte finish, stretched over foam core | |
|---|---|---|
| Seat cushion core | Molded high-resilience polyurethane foam, 60 mm thick at center | |
| Backrest core | Shaped polyurethane foam over rigid internal back panel, 40 mm thick at lumbar zone | |
| Internal seat frame | Plywood or steel load-bearing frame under seat foam, 15 mm panel thickness or 1.5 mm steel gauge | |
| Armrests | Hard black plastic/ABS arm structure with upholstered top pad, fixed to seat frame | |
| Gas lift cylinder | Chrome-plated steel pneumatic cylinder, Class 3 rating, 100 mm travel stroke | |
| Tilt/height mechanism | Black steel under-seat mechanism with single side lever, 2.5 mm plate thickness | |
| 5-star base | Black injection-molded nylon 5-leg base with ribbed underside reinforcement | |
| Casters | Black 5-wheel set with plastic housing and polyurethane tread, swivel mount | |
| Armrest assembly | Rigid black ABS/nylon frame structure with 20 mm thick upholstered top pad, bolt-mounted to seat internal frame | |
| 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
| Seat height adjustment | Pneumatic height adjustment operated by left-side lever, with 100 mm total vertical stroke | |
|---|---|---|
| Seat tilt function | Synchronous or free-float tilt mechanism with adjustable tension knob under seat, allowing up to 15 degrees of back recline from upright | |
| 360-degree swivel | Full 360-degree rotation around central gas lift axis, enabled by bearing mechanism under the seat | |
| Fixed armrests | Non-adjustable angular armrests rigidly mounted to seat frame, providing stationary elbow support at 210 mm above seat level | |
| Mobility | 5 dual-wheel casters for rolling on office carpet or hard floors, with 360-degree swivel per caster | |
| Tilt tension control | Rotary knob under seat adjusts recline resistance to match user weight, operated by hand rotation | |
| Weight-activated tilt lock (reference) | Upright position lock enabled by height lever pull/push, securing chair in vertical working posture | |
| Fixed rigid armrests | Non-adjustable angular frame armrests rigidly bolted to internal seat frame, providing stationary elbow support at 210 mm above seat level | |
| Floor mobility | 5 sets of dual-wheel swivel casters for rolling on low-pile office carpet or hard flat floors, with 360-degree rotation per caster | |
| Upright position lock | Upright posture lock engaged via push/pull of the height control lever, securing the chair in vertical working position to prevent unwanted recline | |
| Recline Angle / Lock Reference | 125° with 3 suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg |
Verified carton / gross weight / assembly / loading data
| Packaging carton count | 1 unit | |
|---|---|---|
| Reference carton dimensions | 720 x 680 x 380 mm | |
| Reference gross weight per carton | 21 kg | |
| Reference carton volume (CBM) | 0.186 CBM | |
| assembly time per unit | 30 minutes | |
| Reference 20ft container load quantity | 260 units | |
| Reference carton volume | 0.186 CBM | |
| Reference 20ft GP container load quantity | 260 units | |
| Reference Package Count | 1 set / 2 cartons | |
| Reference Assembly Time | 40 minutes per set |
Recommended spaces / users / usage modes
| Private executive offices | Suitable for manager and director workstations paired with 1800 mm executive desks, providing professional appearance and mid-back lumbar support | |
|---|---|---|
| Open-plan workstations | Suitable for senior staff desks in open office environments, matching modern minimalist office aesthetics with black monochrome finish | |
| Meeting and conference rooms | Suitable for conference table seating with 12-person capacity, offering 360-degree swivel and tilt for long meeting sessions | |
| Home office workstations | Suitable for 1600 mm home office desks, supporting 8 hour daily work sessions with adjustable height and tilt comfort | |
| Reception and visitor areas | Suitable as premium visitor seating outside executive offices, presenting a formal and uniform brand image | |
| Open-plan senior workstations | Suitable for senior staff desks in open office environments, matching modern minimalist office aesthetics with a monochrome black finish that unifies furniture systems | |
| 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 | Applicable for office chair dimensional and functional requirements for general office use, used as procurement specification reference | |
|---|---|---|
| EN 1335-2:2019 | Applicable for office chair safety, strength and durability testing requirements, used as procurement acceptance reference |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applicable for general-purpose office chair performance and durability testing, used as procurement acceptance benchmark | |
|---|---|---|
| ANSI/BIFMA X6.5-2012 | Applicable for office chair caster and base durability test methods, used as component acceptance reference |
Standards applicable to China-market projects
| GB/T 14710-2009 | Applicable for office chair mechanical strength and durability testing requirements, used as procurement acceptance reference | |
|---|---|---|
| GB/T 3323-2019 | Applicable for metal furniture welding and coating quality inspection of chair frame components, used as procurement acceptance reference | |
| GB 18584-2001 | Applicable for formaldehyde emission limit of wood-based internal panels, used as E1-level procurement acceptance criterion |
This product must meet the following technical requirements: 1. GB/T 14710-2009: Applicable for office chair mechanical strength and durability testing requirements, used as procurement acceptance reference; 2. GB/T 3323-2019: Applicable for metal furniture welding and coating quality inspection of chair frame components, used as procurement acceptance reference; 3. GB 18584-2001: Applicable for formaldehyde emission limit of wood-based internal panels, used as E1-level procurement acceptance criterion; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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