| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 670 x 670 x 1290 mm | |
|---|---|---|
| Seat width | 500 mm | |
| Seat depth | 480 mm | |
| Seat height (adjustable range maximum) | 546 mm | |
| Backrest height | 750 mm | |
| Headrest height adjustment stroke | 100 mm | |
| Lumbar support depth adjustment | 30 mm | |
| Five-star base diameter | 350 mm | |
| Caster diameter | 60 mm | |
| Armrest height above seat | 230 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
| Recommended maximum user weight | 181 kg | |
|---|---|---|
| Net weight | 20 kg | |
| Five-star base static load rating | 1136 kg | |
| Caster rolling durability cycles | 100000 | |
| Seat foam density | 45 kg/m³ | |
| Seat foam durability | 6000 hours | |
| Mesh back abrasion resistance | 50000 rubs | |
| Back frame static load capacity | 120 kg | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | Breathable black 3D woven polyester mesh | |
|---|---|---|
| Backrest internal frame | Reinforced nylon (PA66) with fiberglass additive | |
| Seat cushion core | 45 kg/m³ high-density cold-cured polyurethane foam | |
| Seat upholstery | Black wear-resistant woven fabric over foam | |
| Armrest construction | Black PP (polypropylene) frame with padded PU top surface | |
| Central support column | Chrome-plated steel Class 3 gas lift cylinder | |
| Five-star base | Injection-molded black nylon (PA) | |
| Casters | 60mm diameter black PU (polyurethane) soft roller | |
| Tilt mechanism plate | 2.5mm thick stamped steel with black powder coat | |
| Seat underside shell | Black molded PP (polypropylene) | |
| Headrest upholstery | Matching black breathable mesh over curved PP frame | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | 100mm vertical travel via right-side underseat lever, pneumatic gas lift | |
|---|---|---|
| Backrest tilt function | 25° recline from 90° upright, single-position tilt lock | |
| Headrest adjustment | 100mm vertical height adjustment + 60° tilt rotation | |
| Lumbar support adjustment | 30mm depth projection adjustment, height-aligned with lower back | |
| Armrest adjustment | 80mm vertical height adjustment via side release button | |
| Caster mobility | Smooth omnidirectional rolling on all floor types | |
| Tilt tension control | Variable resistance adjustment via underseat rotary knob | |
| Headrest rotation angle | 60° | |
| Backrest tilt range (maximum) | 115° | |
| 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 office workstations | Suitable for 8-hour daily seated work, breathable mesh reduces heat buildup | |
|---|---|---|
| Home office setups | Compact footprint fits standard 1600 mm wide desks, swivel eases multitasking | |
| Meeting room task seating | Professional black finish matches modern office interiors, easy rolling for repositioning | |
| Administrative staff workspaces | Adjustable features fit 5th-95th percentile adult users for shared desk use | |
| Light-duty executive offices | Padded seat and ergonomic support suit extended computer work sessions | |
| Co-working spaces | Durable components withstand frequent user adjustment and movement | |
| 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 to office work chair dimensional and safety requirements | |
|---|---|---|
| EN 1335-2:2018 | Applicable to office chair strength, durability and stability testing | |
| EN 1335-3:2020 | Applicable to office chair test methods for structural verification |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applicable to general-purpose office chair safety and performance requirements | |
|---|---|---|
| Gas lift durability cycles | 120000 |
Standards applicable to China-market projects
| GB/T 35607-2017 | Applicable to green product evaluation for office furniture, for procurement environmental criteria | |
|---|---|---|
| GB 28007-2011 | Applicable to office chair stability and strength requirements, for structural acceptance | |
| GB/T 10357.3-2013 | Applicable to mechanical performance test methods for chairs and stools |
This product must meet the following technical requirements: 1. GB/T 35607-2017: Applicable to green product evaluation for office furniture, for procurement environmental criteria; 2. GB 28007-2011: Applicable to office chair stability and strength requirements, for structural acceptance; 3. GB/T 10357.3-2013: Applicable to mechanical performance test methods for chairs and stools; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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