| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 660 x 640 x 1130 mm | |
|---|---|---|
| Backrest width | 520 mm | |
| Seat width | 490 mm | |
| Backrest height | 620 mm | |
| Seat depth | 410 mm | |
| Seat height adjustment range | 530 mm | |
| Seat cushion thickness | 80 mm | |
| Armrest height above seat | 200 mm | |
| Total armrest height from floor | 715 mm | |
| Five-star base total diameter | 640 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 | 13 kg | |
|---|---|---|
| Maximum recommended user weight | 136 kg | |
| Five-star base static load rating | 1000 kg | |
| Recommended user height range | 1800 mm | |
| Tilt mechanism cycle rating | 60000 cycles | |
| Seat cushion foam density | 45 kg/m³ | |
| Seat foam rebound rate | 55% | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ | |
| Upholstery Thickness / Abrasion Reference | 1.4 mm / 50000 cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | Breathable high-density polyester mesh | |
|---|---|---|
| Back support frame | Nylon with fiberglass reinforcement | |
| Seat cushion core | High-resilience cold-cured polyurethane foam | |
| Seat upholstery | Woven abrasion-resistant fabric | |
| Armrests | Fixed-height black PP plastic with smooth surface | |
| Gas lift cylinder | Class 3 chrome-plated steel | |
| Tilt mechanism | 2.5 mm thick steel butterfly plate with lock and tension adjust | |
| Five-star base | Black molded nylon | |
| Casters | 50 mm diameter PU-coated nylon swivel casters | |
| Seat inner support | 12 mm thick molded plywood | |
| 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 | 100 mm vertical stroke via central gas lift | |
|---|---|---|
| Swivel function | 360-degree full rotation around central gas lift axis | |
| Tilt function | 12-degree rearward recline with upright position lock | |
| Tilt tension control | User-adjustable knob modulates recline resistance for different weights | |
| Mobility function | Five dual-surface casters for smooth rolling on hard floors and carpet | |
| Lumbar support | Contoured fixed mesh lumbar zone built into lower backrest | |
| Armrest support | Fixed-height loop armrests provide static forearm support during desk work | |
| 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
| Single carton dimensions | 650 x 610 x 480 mm | |
|---|---|---|
| Gross weight per packaged unit | 15 kg | |
| 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 use | Suitable for private workstations with 760 mm standard desk height | |
|---|---|---|
| Corporate open office use | Ideal for employee task seating in general workspace layouts | |
| Small meeting room use | Appropriate for short-duration meeting and collaborative seating areas | |
| Student study space use | Suitable for secondary school or university dormitory/study desk setups | |
| Coworking space use | Durable mid-tier seating for hot-desk and shared work zones | |
| Reception area use | Appropriate for staff-side reception workstations in office lobbies | |
| 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 work chair dimensional safety requirements | |
|---|---|---|
| EN 1335-2:2018 | Applicable for office chair structural strength and stability requirements | |
| EN 1335-3:2009 | Applicable for office chair mechanical safety test methods |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applicable for general-purpose office chair performance and durability requirements | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Applicable for office chair vertical load capacity testing for heavy users | |
| Caster rolling durability | 100000 cycles |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applicable for office furniture seating dimensional accuracy requirements | |
|---|---|---|
| GB/T 3324-2017 | Applicable for general wooden and metal office furniture quality requirements | |
| GB 18584-2001 | Applicable for indoor decoration material limited harmful substance emissions | |
| GB/T 10357.3-2013 | Applicable for chair seating mechanical performance test methods |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applicable for office furniture seating dimensional accuracy requirements; 2. GB/T 3324-2017: Applicable for general wooden and metal office furniture quality requirements; 3. GB 18584-2001: Applicable for indoor decoration material limited harmful substance emissions; 4. GB/T 10357.3-2013: Applicable for chair seating mechanical performance test methods; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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