| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| overall dimensions | 700 x 700 x 1220 mm | |
|---|---|---|
| seat width | 520 mm | |
| seat depth | 510 mm | |
| seat height adjustment range | 530 mm | |
| backrest total height | 720 mm | |
| split upper back panel dimensions | 220 x 480 mm per panel | |
| lumbar support pad dimensions | 460 x 220 mm | |
| armrest height above seat | 250 mm | |
| five-star base diameter | 700 mm | |
| caster diameter | 60 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 | 20 kg | |
|---|---|---|
| maximum user weight capacity | 150 kg | |
| static load rating for five-star base | 1136 kg | |
| gas lift cycle rating | 200000 cycles | |
| seat foam density | 45 kg/m³ | |
| seat foam thickness | 100 mm | |
| back foam thickness | 60 mm | |
| upholstery abrasion resistance | 50000 Martindale cycles | |
| recline tilt angle | 125° | |
| warranty period | 5 years |
Core acceptance fields · Panels / hardware / frame / upholstery
| seat and back upholstery | Black breathable woven fabric | |
|---|---|---|
| seat cushion core | High-resilience polyurethane foam | |
| split back and lumbar cores | Molded high-density polyurethane foam | |
| armrest pads | Soft polyurethane padding on polypropylene support | |
| internal support frame | 1.5 mm thick steel tube frame | |
| five-star base | 30% glass-fiber reinforced nylon | |
| gas lift cylinder | 100 mm diameter Class 4 steel gas lift | |
| tilt mechanism | 3 mm thick steel plate multi-lock mechanism | |
| casters | 60 mm diameter polyurethane dual-wheel casters | |
| back frame supports | Black polypropylene structural side rails | |
| split upper back cores | 40 kg/m³ molded high-density polyurethane foam | |
| lumbar support pad core | 45 kg/m³ contoured polyurethane foam |
Adjustment / rotation / tilt / mobility / storage features
| 360-degree swivel rotation | Full rotation enabled by central gas lift and base bearing | |
|---|---|---|
| pneumatic seat height adjustment | 90 mm vertical travel via under-seat actuation lever | |
| backrest tilt and lock | 125° maximum recline, lockable in 4 positions via chassis control | |
| tilt tension adjustment | User-adjustable recline resistance knob under seat | |
| height-adjustable armrests | 80 mm vertical height adjustment to match desk surface | |
| independent split back support | Dual upper back panels flex to conform to spinal movement | |
| contoured lumbar support | Fixed curved lower pad maintains natural lumbar curve | |
| smooth rolling mobility | Dual-wheel casters roll on hard floors and low-pile carpet | |
| contoured fixed lumbar support | Curved integrated lower pad maintains natural lumbar lordosis | |
| smooth multi-surface mobility | Dual-wheel PU casters roll without marking on hard floors and low-pile carpet | |
| edge pressure relief | Contoured waterfall seat front edge reduces thigh pressure | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions |
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 8-hour daily seated work at standard 760 mm height desks | |
|---|---|---|
| home office setups | Neutral black finish fits residential workspaces without visual clutter | |
| meeting and conference rooms | Swivel and mobility functions support collaborative discussion seating | |
| coworking shared spaces | Adjustable features accommodate diverse user heights and preferences | |
| administrative and reception areas | Professional minimalist appearance suits customer-facing office spaces | |
| task-focused work zones | Split back and lumbar support suit long sessions of computer-based work | |
| task-focused IT and design work zones | Split back and lumbar support suit long sessions of computer-based focused work | |
| training and classroom environments | Stable base and durable upholstery withstand repeated user turnover in training rooms |
EU Market Access Requirements* EN Standards
| EN 1335-1:2020 | Applies to office work chair dimensional safety requirements | |
|---|---|---|
| EN 1335-2:2018 | Applies to office work chair strength, durability and safety | |
| EN 1335-3:2009 | Applies to office work chair test methods for safety verification |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair safety and performance | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Applies to large occupant office chair load testing if rated over 125kg |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office furniture chair dimensional stability and strength testing | |
|---|---|---|
| GB/T 10357.3-2013 | Applies to chair back, seat and armrest static/dynamic load testing | |
| GB 18584-2001 | Applies to formaldehyde emission limits for wooden/soft furniture components |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office furniture chair dimensional stability and strength testing; 2. GB/T 10357.3-2013: Applies to chair back, seat and armrest static/dynamic load testing; 3. GB 18584-2001: Applies to formaldehyde emission limits for wooden/soft furniture components; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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