| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 730 x 700 x 1235 mm | |
|---|---|---|
| Seat width | 520 mm | |
| Seat depth | 510 mm | |
| Maximum seat height | 530 mm | |
| Minimum seat height | 450 mm | |
| Backrest total height | 580 mm | |
| Backrest width | 515 mm | |
| Five-star base span diameter | 700 mm | |
| Caster diameter | 50 mm | |
| Armrest height above seat | 250 mm | |
| Armrest total width span | 655 mm | |
| Lumbar support pad width | 440 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 product weight | 15 kg | |
|---|---|---|
| Maximum recommended user weight | 159 kg | |
| Five-star base static load capacity | 1000 kg | |
| Backrest maximum tilt angle | 125 degrees | |
| Seat foam density | 45 kg/m³ | |
| Seat foam thickness | 60 mm | |
| Back foam thickness | 40 mm | |
| Upholstery abrasion resistance | 120000 cycles | |
| Caster rolling durability | 100000 cycles | |
| Warranty period | 5 years |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat cushion surface | Black woven fabric upholstery | |
|---|---|---|
| Seat cushion core | High-density molded polyurethane foam | |
| Upper back pads | Fabric-wrapped padded foam panels | |
| Lower lumbar support panel | Fabric-wrapped contoured foam pad | |
| Internal back frame | Fiberglass-reinforced polypropylene | |
| Armrests | Integral fixed black polypropylene with flat top surface | |
| Five-star base | Glass-filled nylon (polyamide) | |
| Gas lift cylinder | Chrome-plated steel Class 3 gas lift | |
| Tilt mechanism plate | 2.5 mm thick stamped steel | |
| Casters | Black polyurethane dual-wheel swivel casters | |
| Seat underside pan | Molded polypropylene support structure | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| 360-degree swivel rotation | Full rotation enabled by central gas lift and base bearing | |
|---|---|---|
| Pneumatic seat height adjustment | 100 mm travel adjusted via under-seat lever | |
| Backrest tilt with position lock | 125 degree maximum recline, lockable in upright position | |
| Tilt tension adjustment | User-adjustable knob controls recline resistance to match user weight | |
| Fixed armrest support | Non-adjustable armrests positioned at 250 mm above seat for elbow rest | |
| Dual-pad upper back support | Split independent upper back panels reduce shoulder blade pressure | |
| Contoured lumbar support | Integrated lower back pad maintains natural lumbar spine curve | |
| Dual-wheel caster mobility | 5 swivel casters enable smooth rolling on hard floors and low-pile carpet | |
| Gas lift stroke | 100 mm | |
| 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
| Open office workstations | Suitable for long-hour seated task work with ergonomic back support | |
|---|---|---|
| Home office desks | Compact footprint and neutral black finish matches residential work spaces | |
| Meeting and conference rooms | Swivel and mobility support easy collaboration around conference tables | |
| Reception and admin areas | Professional black appearance and fixed armrests suit public-facing work zones | |
| Shared hot-desking stations | Height adjustment accommodates users of varying stature 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 | Office chair dimensional safety and performance requirements, applicable for European market compliance | |
|---|---|---|
| EN 1335-2:2018 | Office chair strength, durability and stability test standard, applicable for structural validation | |
| EN 1335-3:2009 | Office chair test methods for structural and safety performance, applicable for quality inspection |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | General purpose office chair safety and performance standard, applicable for commercial grade validation |
|---|
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for office furniture, applicable for structural safety and quality inspection | |
|---|---|---|
| GB/T 10357.3-2013 | Office chair strength and durability test standard, applicable for stability and load validation | |
| GB 18584-2001 | Formaldehyde emission limit for wooden/foam furniture materials, applicable for indoor air quality compliance | |
| GB/T 29648-2013 | Office chair caster durability and rolling resistance test standard, applicable for wheel performance |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for office furniture, applicable for structural safety and quality inspection; 2. GB/T 10357.3-2013: Office chair strength and durability test standard, applicable for stability and load validation; 3. GB 18584-2001: Formaldehyde emission limit for wooden/foam furniture materials, applicable for indoor air quality compliance; 4. GB/T 29648-2013: Office chair caster durability and rolling resistance test standard, applicable for wheel performance; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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