| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 680 x 650 x 1280 mm | |
|---|---|---|
| Seat width | 520 | |
| Seat depth | 500 | |
| Seat height range | 500 | |
| Backrest width | 500 | |
| Backrest height | 680 | |
| Headrest width | 320 | |
| Headrest height | 110 | |
| Armrest height from seat | 220 | |
| Armrest width | 60 | |
| Five-star base diameter | 700 | |
| Caster diameter | 60 | |
| Knee clearance under seat front | 480 | |
| Finished Seat Cushion Thickness | 90 mm | |
| Backrest Padding Thickness | 70 mm | |
| Lumbar Support Zone Height | 240 mm |
Net weight / load capacity / users / durability
| Recommended static load capacity | 150 kg | |
|---|---|---|
| Net weight | 18 kg | |
| Gross weight | 20 kg | |
| Seat foam density | 45 kg/m³ | |
| Backrest mesh tension rating | 1200 N | |
| Caster rolling durability | 100000 cycles | |
| Armrest vertical static load | 80 kg | |
| Tilt mechanism fatigue life | 120000 cycles | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest panel | Blue woven mesh stretched over injection-molded PP frame with integrated lumbar support area | |
|---|---|---|
| Seat cushion | Molded polyurethane foam core upholstered in blue woven fabric with stitched edge detail | |
| Headrest | Blue woven mesh surface with PP plastic frame, mounted on adjustable support bracket | |
| Armrests | White matte PP fixed arm pads mounted on square tubular steel supports with chrome finish | |
| Five-star base | Chrome-plated steel five-pronged base with rounded edge profile and central hub collar | |
| Gas lift column | Chrome-plated steel pneumatic gas lift with black plastic housing at seat connection | |
| Casters | Black nylon twin-wheel casters with chrome-plated mounting stems, suitable for hard and carpeted floors | |
| Tilt mechanism | Steel plate tilt chassis with side-mounted black plastic control lever for height and tilt adjustment | |
| Frame connectors | Black plastic central hub and bushing parts joining base column, mechanism and base legs | |
| Backrest assembly | Blue woven polyester mesh stretched over injection-molded PP plastic frame with integrated lumbar contour, secured via tensioned edge fasteners | |
| Headrest assembly | Blue woven mesh support surface with matte PP plastic outer frame, mounted on chrome-plated steel height-adjustment bracket | |
| Armrest assembly | White matte PP fixed arm pads mounted on square tubular chrome-plated steel supports, welded to seat inner frame |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic gas lift controlled by left-side lever, providing 120 mm vertical travel between minimum and maximum seat height | |
|---|---|---|
| Backrest tilt function | Synchronous tilt mechanism allowing up to 135° recline angle from upright position, with tension adjustment via rotary knob under seat | |
| 360-degree swivel | Full 360-degree continuous rotation around vertical axis enabled by precision bearing in central hub | |
| Headrest positioning | Height-adjustable headrest mounted on sliding bracket to support cervical spine at different user heights | |
| Fixed armrest support | Rigid non-adjustable armrests at fixed height and width to provide forearm support during typing and rest positions | |
| Mobility function | Five dual-wheel casters distributed across five-star base for stable rolling movement on office flooring | |
| Tilt lock function | Multi-position tilt lock that secures backrest at selected recline angles within the 90° to 135° range | |
| Gas lift stroke | 120 | |
| Backrest tilt angle range | 135 | |
| Backrest synchronous tilt | Synchronous tilt mechanism allowing 135° maximum recline angle from upright 90° position, with seat tilting 2° for every 3° of backrest movement | |
| Multi-surface mobility | Five 60mm dual-wheel nylon casters distributed across 700mm five-star base, enabling stable rolling movement on hard floors and low-pile carpet | |
| Multi-position tilt lock | 3-position tilt lock that secures backrest at selected recline angles within the 90° to 135° range, via spring-loaded locking pin in tilt chassis |
Verified carton / gross weight / assembly / loading data
| Packing configuration | 1 chair per carton, flat-packed in knock-down form with seat, backrest, base, gas lift, casters, armrests and hardware bag inside | |
|---|---|---|
| Carton dimensions | 750 x 620 x 320 mm | |
| Gross weight per carton | 20 kg | |
| Volume per carton | 0.149 CBM | |
| Assembly time per unit | 20 minutes | |
| 20ft container loading quantity | 280 units | |
| Warranty period | 24 months | |
| Reference Package Count | 1 set / 2 cartons | |
| Reference Assembly Time | 40 minutes per set | |
| Reference Carton Dimensions | 850× 420× 720 mm |
Recommended spaces / users / usage modes
| Executive office suites | Suitable for private executive offices and management workstations requiring ergonomic support for long working hours | |
|---|---|---|
| Open-plan workstations | Suitable for open office environments where employees use computers for extended daily periods | |
| Meeting and conference rooms | Suitable for conference rooms and meeting spaces requiring comfortable professional seating for extended discussions | |
| Home office spaces | Suitable for home office and remote work setups requiring ergonomic commercial-grade seating at moderate budget | |
| Shared workspaces and co-working centers | Suitable for multi-user shared work environments where adjustable height and durable construction are required | Durable mesh and fabric surfaces withstand frequent use by different users | |
| Executive private offices | Suitable for management-level private office workstations requiring full-body ergonomic support for 8 hour daily seated work | |
| Open-plan staff workstations | Suitable for open office environments where employees perform computer-based tasks for extended daily periods | |
| Co-working and shared workspaces | Suitable for multi-user shared work environments where durable construction and easy adjustability are required |
EU Market Access Requirements* EN Standards
| EN 1335-1:2020 | Applicable for office chair dimensional and functional requirements for ergonomic workstation seating | |
|---|---|---|
| EN 1335-2:2019 | Applicable for safety, strength and durability test methods and acceptance criteria for office chairs |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applicable for general office chairs performance testing including static load, impact, durability and stability tests | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Applicable for caster and base durability testing under static and dynamic load conditions |
Standards applicable to China-market projects
| GB/T 14530-2017 | Applicable for office chair mechanical strength and durability testing, including seat, back and armrest load requirements | |
|---|---|---|
| GB 28007-2011 | Applicable for formaldehyde and VOC emission limits of upholstered furniture components including seat foam and fabric |
This product must meet the following technical requirements: 1. GB/T 14530-2017: Applicable for office chair mechanical strength and durability testing, including seat, back and armrest load requirements; 2. GB 28007-2011: Applicable for formaldehyde and VOC emission limits of upholstered furniture components including seat foam and fabric; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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