| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 690 x 570 x 1040 mm | |
|---|---|---|
| Seat cushion width | 520 mm | |
| Seat depth | 500 mm | |
| Maximum seat height from floor | 490 mm | |
| Minimum seat height from floor | 420 mm | |
| Backrest height | 550 mm | |
| Five-star base diameter | 640 mm | |
| Armrest height above seat | 70 mm | |
| Seat cushion thickness | 50 mm | |
| Caster diameter | 50 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 | 200 kg | |
|---|---|---|
| Net product weight | 18 kg | |
| Gas lift height adjustment stroke | 70 mm | |
| Mesh back abrasion resistance | 30000 cycles | |
| Caster rolling durability | 50000 cycles | |
| Gas lift adjustment cycle rating | 100000 cycles | |
| Seat foam density | 45 kg/m³ | |
| Seat foam rebound rate | 40% | |
| Product warranty period | 3 years | |
| Static load capacity of five-star base | 1136 kg |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest mesh | Tensioned breathable polyester mesh with decorative leaf pattern | |
|---|---|---|
| Seat cushion upholstery | Woven polyester fabric over foam core | |
| Seat cushion fill | High-density polyurethane foam, 50mm thickness | |
| Armrest pads | Soft polyurethane padding on PP support frames | |
| Chair frame and back support | Reinforced polypropylene structural frame | |
| Five-star base | Injection-molded black nylon, 2.5mm wall thickness | |
| Height adjustment gas lift | Carbon steel Class 3 cylinder, 50mm outer diameter | |
| Seat mechanism plate | 2.5mm thick stamped steel tilt chassis | |
| Casters | Nylon housing with polyurethane tread, twin-wheel design | |
| Internal seat support plate | 12mm thick plywood or PP composite panel | |
| Seam stitch pitch | 8 stitches per inch | |
| Chair inner frame and back support | Reinforced polypropylene structural frame, 4mm wall thickness |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic gas lift operated by side lever, 70mm vertical travel | |
|---|---|---|
| Swivel function | 360-degree full rotation around central axis for multi-directional access | |
| Tilt function | Spring-loaded back tilt with lock, 12-degree maximum recline angle | |
| Tilt tension adjustment | Knob-controlled tension to match user weight for recline resistance | |
| Armrest adjustment | Height-adjustable padded armrests with 70mm vertical travel | |
| Mobility | Twin-wheel casters roll freely on hard floors and low-pile carpet | |
| Lumbar support | Contoured mesh back provides built-in mid-back lumbar contact | |
| Waterfall seat edge | Rounded front seat edge reduces thigh pressure during extended sitting | |
| Seat swivel function | 360-degree unobstructed full rotation around central axis for multi-directional access | |
| Mobility function | Twin-wheel polyurethane casters roll freely on hard floors and low-pile commercial carpet | |
| Built-in lumbar support | Contoured curved mesh back provides constant mid-back lumbar contact without separate adjustment | |
| Tilt lock function | Lever-activated lock secures backrest in upright position for focused task work |
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 | Compact dimensions fit standard partitioned desks for daily employee task use | |
|---|---|---|
| Home office spaces | Neutral green and black design matches residential study environments | |
| Conference meeting rooms | 360-degree swivel supports collaborative discussion around tables | |
| Training rooms | Lightweight mobile design allows easy rearrangement for group sessions | |
| Reception work areas | Mid-back profile provides comfort without blocking reception sightlines | |
| Small studio apartments | Compact footprint fits small desk setups without excessive space use | |
| Open plan office workstations | Compact footprint fits standard 1200mm partitioned desks for 8-hour daily employee task work | |
| Small to mid-sized conference rooms | 360-degree swivel and easy mobility support collaborative discussion around meeting tables |
EU Market Access Requirements* EN Standards
| EN 1335-1:2020 | Applies to office chair dimensional safety and performance requirements | |
|---|---|---|
| EN 1335-2:2018 | Applies to structural stability, strength and durability testing | |
| EN 1021-1:2014 | Applies to upholstered furniture cigarette ignition resistance |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1 Drop Test | Applies to 102mm free-drop impact resistance for seat assembly |
|---|
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office chair dimensional measurement tolerances and stability | |
|---|---|---|
| GB/T 10357.2-2013 | Applies to chair static load and impact testing for structural safety | |
| GB 18584-2001 | Applies to interior decoration material formaldehyde emission limits | |
| GB/T 35607-2017 | Applies to green product evaluation for office furniture |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office chair dimensional measurement tolerances and stability; 2. GB/T 10357.2-2013: Applies to chair static load and impact testing for structural safety; 3. GB 18584-2001: Applies to interior decoration material formaldehyde emission limits; 4. GB/T 35607-2017: Applies to green product evaluation for office furniture; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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