| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 660 x 660 x 1020 mm | |
|---|---|---|
| Seat width | 470 mm | |
| Seat depth | 470 mm | |
| Maximum seat height from floor | 580 mm | |
| Minimum seat height from floor | 460 mm | |
| Fixed armrest height from floor at lowest seat position | 760 mm | |
| Backrest total height | 440 mm | |
| Five-star base outer diameter | 620 mm | |
| Caster diameter | 60 mm | |
| Cushion padding thickness | 110 mm | |
| Lower lumbar back pad thickness | 90 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 user weight capacity | 125 kg | |
|---|---|---|
| Five-star base static load rating | 1136 kg | |
| Net weight (product only) | 20 kg | |
| Gas lift durability rating | 200000 lift cycles | |
| Seat foam density | 40 kg/m³ | |
| Foam rebound rate | 60% | |
| Upholstery abrasion resistance | 30000 Martindale cycles | |
| Net product weight | 20 kg | |
| Tilt mechanism fatigue life | 100000 recline cycles | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Black breathable woven mesh/fabric | |
|---|---|---|
| Seat cushion core | 40D high-density polyurethane foam | |
| Back support frame | Fiberglass-reinforced PP/nylon | |
| Fixed armrests | Rigid PP with flat hard top surface | |
| Central gas lift cylinder | Chrome-plated steel, Class 3 rated | |
| Five-star base | Black reinforced nylon composite | |
| Rolling casters | Black PA dual-wheel hard floor casters | |
| Tilt mechanism plate | 2.5mm thick stamped steel with black powder coat | |
| Upholstery seam stitch pitch | 8 stitches per inch | |
| Back support internal frame | Fiberglass-reinforced PP/nylon composite | |
| Fixed T-style armrests | Injection-molded rigid PP with flat hard top surface | |
| Upholstery seam construction | Bonded polyester thread with 8 stitches per inch |
Adjustment / rotation / tilt / mobility / storage features
| 360-degree swivel rotation | Full rotation around central gas lift axis | |
|---|---|---|
| Pneumatic seat height adjustment | 120mm vertical travel via side lever | |
| Spring-loaded tilt function | 12-degree rearward recline with upright position lock | |
| Split dual upper back support | Two separate padded panels to distribute upper back pressure | |
| Integrated lower lumbar support | Contoured fixed pad aligned to lower back curve | |
| Fixed height armrests | Static non-adjustable support positioned for standard desk height | |
| Dual-wheel caster mobility | Smooth rolling on hard and low-pile carpet office floors | |
| Integrated fixed lumbar support | Contoured lower pad aligned to natural lumbar curve | |
| Tilt tension adjustment | User-adjustable spring tension to match user body weight | |
| 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
| Home office workstations | Fits standard 750mm height desks for daily remote work and computer use | |
|---|---|---|
| Open plan office cubicles | Compact footprint suitable for high-density task seating arrangements | |
| Small meeting rooms | Rolling swivel design supports quick repositioning for collaborative discussion | |
| Student study desks | Mid-back support suitable for extended seated study and homework sessions | |
| Reception and admin areas | Consistent black finish matches neutral commercial office decor schemes | |
| Co-working hot desks | Adjustable height range accommodates diverse user body sizes for shared use | |
| 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 and safety requirement verification for European markets | |
|---|---|---|
| EN 1335-2:2018 | Applies to mechanical safety, strength and durability testing for office task chairs | |
| EN 1335-3:2009 | Applies to stability test methods for caster-based office seating |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair safety, durability and performance requirements | |
|---|---|---|
| Caster rolling durability | 100000 cycles |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office chair dimension measurement and tolerance verification for procurement inspection | |
|---|---|---|
| GB/T 10357.3-2013 | Applies to mechanical strength and durability testing for office seating stability | |
| GB 28007-2011 | Applies to upholstered furniture formaldehyde emission limits for indoor use |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office chair dimension measurement and tolerance verification for procurement inspection; 2. GB/T 10357.3-2013: Applies to mechanical strength and durability testing for office seating stability; 3. GB 28007-2011: Applies to upholstered furniture formaldehyde emission limits for indoor use; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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