| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 650 x 680 x 1210 mm | |
|---|---|---|
| Backrest width | 420 mm | |
| Seat width | 490 mm | |
| Seat depth | 430 mm | |
| Seat cushion thickness | 60 mm | |
| Backrest height | 550 mm | |
| Headrest height | 95 mm | |
| Armrest height above seat | 180 mm | |
| Seat height adjustment range endpoint | 520 mm | |
| Total arm height at max seat height | 700 mm | |
| Five-star base outer span | 680 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 | 16 kg | |
|---|---|---|
| Recommended static user weight capacity | 150 kg | |
| Five-star base static load rating | 1000 kg | |
| Tilt recline maximum angle | 135 ° | |
| Gas lift vertical stroke | 100 mm | |
| Standard color options | 1 colors | |
| Frame and mechanism warranty | 5 years | |
| 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 construction | Tensioned breathable polyester mesh over reinforced nylon back frame | |
|---|---|---|
| Seat cushion core | 40D high-density molded polyurethane foam | |
| Seat upholstery | Abrasion-resistant woven polyester fabric over foam core | |
| Armrest construction | Rigid polypropylene structure with hard-wearing top pad | |
| Seat mechanism plate | 2.5mm thick cold-rolled steel with black powder coat | |
| Height adjustment gas lift | Class 3 SGS-certified steel gas lift with black finish | |
| Five-star base | Glass-fiber reinforced nylon with matte black finish | |
| Caster construction | 60mm diameter mute polyurethane twin-wheel casters | |
| Headrest padding | 40D molded foam with matching mesh upholstery | |
| Frame finish | Matte black electrostatic powder coat on metal components | |
| 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
| 360-degree swivel rotation | Full 360° horizontal rotation enabled by central swivel mechanism | |
|---|---|---|
| Pneumatic seat height adjustment | 100mm vertical stroke via under-seat lever, adjusts seat from 420 to 520mm height | |
| Synchronized tilt function | Single-position upright lock with adjustable tension control via under-seat knob | |
| Height-adjustable headrest | Vertical height adjustment to align with user neck curvature | |
| Integrated lumbar support | Contoured mesh central lumbar zone for lower back pressure relief | |
| Fixed armrest support | Rigid fixed-position armrests provide stable forearm support during typing | |
| Smooth rolling mobility | Twin-wheel PU casters roll on hard floors and low-pile carpet without scratching | |
| Waterfall seat edge design | Curved front seat edge reduces leg pressure and improves circulation | |
| 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-plan office workstations | Provides ergonomic back support for 8-hour daily desk work for general staff | |
|---|---|---|
| Home office study spaces | Compact 650mm width fits small desk layouts without occupying excess floor space | |
| Conference and meeting rooms | Swivel and tilt functions support flexible movement during collaborative meetings | |
| Call center and customer service desks | Breathable mesh back reduces heat buildup during extended continuous seating | |
| Startup co-working spaces | Durable BIFMA-aligned components withstand frequent use by rotating users | |
| 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 | Applies to office work chair dimensional safety and functional performance requirements | |
|---|---|---|
| EN 1335-2:2018 | Applies to office chair strength, durability and stability test requirements | |
| EN 1335-3:2009 | Applies to office chair test methods for structural performance verification |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair strength, durability and stability requirements | |
|---|---|---|
| Caster rolling durability cycles | 100000 cycles |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to desk, chair and stool furniture dimension measurement for accuracy verification | |
|---|---|---|
| GB 28007-2011 | Applies to stability, strength and durability requirements for office swivel chairs | |
| GB/T 19001-2016 | Applies to quality management system requirements for manufacturing consistency |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to desk, chair and stool furniture dimension measurement for accuracy verification; 2. GB 28007-2011: Applies to stability, strength and durability requirements for office swivel chairs; 3. GB/T 19001-2016: Applies to quality management system requirements for manufacturing consistency; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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