| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 670 x 670 x 1360 mm | |
|---|---|---|
| Seat height adjustment range | 530 mm | |
| Seat cushion width | 510 mm | |
| Seat cushion depth | 500 mm | |
| Backrest total height | 700 mm | |
| Headrest dimensions | 320 x 180 mm | |
| Five-star base diameter | 350 mm | |
| Caster diameter | 60 mm | |
| Armrest height above seat | 220 mm | |
| Seat under-clearance (lowest position) | 120 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 recommended user weight | 181 kg | |
| Seat foam density | 50 kg/m³ | |
| Seat foam rebound rate | 45% | |
| Cushion padding thickness | 80 mm | |
| Backrest padding thickness | 50 mm | |
| Caster rolling durability | 100000 cycles | |
| Warranty period | 5 years | |
| Net product weight | 18 kg | |
| Maximum recommended static user load | 181 kg |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Black woven polyester fabric, 0.8mm thickness | |
|---|---|---|
| Seat core structure | 12mm thick plywood base with high-density foam padding | |
| Back frame structure | Black glass-fiber reinforced nylon frame | |
| Armrest construction | Integrated fixed nylon armrests with curved support design | |
| Height adjustment cylinder | Chrome-plated steel Class 4 gas lift | |
| Five-star base | Matte black injection-molded nylon, 3mm wall thickness | |
| Rolling casters | Black non-marking nylon dual-wheel casters | |
| Tilt mechanism | 2.5mm thick steel plate swivel tilt mechanism | |
| Seam stitching | Polyester thread with 8mm stitch pitch | |
| Headrest support post | Black steel height-adjustment post | |
| Dual back frame structure | Black glass-fiber reinforced nylon structural frame supporting independent split pads | |
| Fixed armrest construction | Integrated loop-shaped glass-fiber reinforced nylon armrests with smooth matte finish |
Adjustment / rotation / tilt / mobility / storage features
| 360-degree swivel rotation | Full 360° horizontal rotation enabled by central swivel joint | |
|---|---|---|
| Pneumatic seat height adjustment | 100mm vertical adjustment via under-seat lever for desk alignment | |
| Lockable backrest recline | 3-position tilt lock with adjustable tension for upright or reclined postures | |
| Dual split back support | Independent left/right padded back panels conform to spinal movement | |
| Adjustable headrest support | Height-adjustable padded headrest supports cervical spine during rest | |
| Integrated lumbar support pad | Fixed contoured lower back pad maintains natural lumbar curve | |
| Fixed curved armrests | Integrated loop armrests provide stable forearm support at desk height | |
| Smooth rolling mobility | 5 dual-wheel casters enable low-effort movement on hard and carpet floors | |
| Tilt tension adjustment | Tension knob adjusts recline resistance to match user body weight | |
| Gas lift stroke | 100 mm | |
| Recline maximum angle | 125° | |
| Height-adjustable headrest | 60mm vertical travel padded headrest adjusts to support cervical spine during reclined rest |
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
| Corporate open office workstations | Provides 8+ hour seated support for daily desk-based administrative and knowledge work | |
|---|---|---|
| Home office workspaces | Suits remote work setups with adjustable height for standard home desks | |
| Manager private offices | High-back ergonomic support suitable for executive desk work and meetings | |
| Coworking space seating | Durable construction supports high-frequency multi-user daily use | |
| Meeting and conference rooms | Swivel and recline functions support long meetings and collaborative work | |
| Computer and study desks | Adjustable height and back support suit extended study and computer use | |
| Manager private executive offices | High-back profile and dual lumbar support suit extended executive desk work and small in-office meetings | |
| Shared coworking spaces | Commercial-grade durability supports high-frequency multi-user daily rotation between different workers |
EU Market Access Requirements* EN Standards
| EN 1335-1:2020 | Applies to office chair dimensional safety and ergonomic design requirements | |
|---|---|---|
| EN 1335-2:2018 | Applies to strength, durability and stability performance requirements | |
| EN 1335-3:2020 | Applies to test methods for office chair structural performance verification |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair safety and durability testing standards | |
|---|---|---|
| BIFMA X5.1 Test 5 | Applies to five-star base static load verification of 1136kg minimum | |
| Base static load rating | 1136 kg |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office chair dimensional stability and strength testing requirements | |
|---|---|---|
| GB/T 10357.3-2013 | Applies to mechanical performance test methods for seating furniture | |
| GB 18584-2001 | Applies to formaldehyde emission limits for wooden furniture components | |
| GB/T 24821-2009 | Applies to office chair caster and base durability requirements |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office chair dimensional stability and strength testing requirements; 2. GB/T 10357.3-2013: Applies to mechanical performance test methods for seating furniture; 3. GB 18584-2001: Applies to formaldehyde emission limits for wooden furniture components; 4. GB/T 24821-2009: Applies to office chair caster and base durability requirements; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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