| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 625 x 680 x 1180 mm | |
|---|---|---|
| Seat width | 490 mm | |
| Seat depth | 445 mm | |
| Seat height adjustment range (to floor) | 505 mm | |
| Backrest height (above seat) | 560 mm | |
| Armrest height above seat | 190 mm | |
| Five-star base wheel tip span | 680 mm | |
| Headrest vertical adjustment travel | 40 mm | |
| Headrest width | 340 mm | |
| Backrest upper width | 475 mm | |
| Maximum backrest height above floor | 1180 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
| Recommended maximum user weight | 136 kg | |
|---|---|---|
| Net weight | 21 kg | |
| Recline angle range | 130 degrees | |
| Gas lift cycle durability | 300000 cycles | |
| Caster rolling durability | 100000 cycles | |
| Tilt mechanism cycle rating | 300000 cycles | |
| Seat foam density | 50 kg/m³ | |
| Seat foam thickness | 80 mm | |
| 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 woven polyester mesh | |
|---|---|---|
| Backrest support frame | PA nylon reinforced with 20% glass fiber | |
| Seat cushion core | 50kg/m³ high-density cold-cured molded foam | |
| Seat cushion underside | 12mm thick molded plywood support board | |
| Armrests | Fixed PP nylon frame with 10mm thick PU padded tops | |
| Headrest cushion | 15mm thick molded foam pad over mesh insert | |
| Five-star base | 3mm thick reinforced nylon (PA) | |
| Gas lift cylinder | SGS Class 3 steel cylinder, 50mm outer diameter | |
| Casters | 60mm diameter dual-wheel mute polyurethane casters | |
| Mechanism chassis | 2.5mm thick steel plate tilt chassis | |
| Seat upholstery fabric | 320g/m² abrasion-resistant polyester fabric | |
| Exposed structural finish | Matte black powder coating on metal components |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic gas lift adjusts seat height 100mm via under-seat lever | |
|---|---|---|
| Headrest adjustment | 40mm vertical height adjustment to support neck alignment | |
| 360-degree swivel | Full rotation around central gas lift axis for easy workspace access | |
| Tilt function | Backrest tilts up to 130 degrees with single-position upright lock | |
| Tilt tension adjustment | Tension knob under seat adjusts recline resistance for user weight | |
| Mobility function | Dual-wheel casters roll smoothly on hard floors and low-pile carpet | |
| Lumbar support | Contoured fixed lumbar zone aligns with natural lower back curve | |
| Fixed armrest support | Fixed-height armrests provide stable forearm support at typing height | |
| Front seat edge | Waterfall seat edge reduces pressure on back of thighs during long sitting | |
| 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
| Corporate open office workstations | Provides lumbar support and adjustability for 8-hour daily desk use | |
|---|---|---|
| Home office and study spaces | Compact footprint fits standard desk layouts for remote work | |
| Conference and meeting rooms | Swivel and mobility support easy collaboration during group discussions | |
| Coworking and shared workspaces | Durable construction withstands frequent use by multiple users | |
| Height-adjustable standing desk setups | Pneumatic seat height pairs with sit-stand desk height ranges | |
| Student dormitory and study areas | Ergonomic support reduces fatigue during long study sessions | |
| 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 | Defines dimensional safety requirements for office work chairs | |
|---|---|---|
| EN 1335-2:2018 | Covers strength, durability and safety performance for office chairs | |
| EN 1335-3:2009 | Specifies test methods for office chair structural stability |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Defines performance and safety requirements for general office chairs |
|---|
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to furniture size measurement for office seating products | |
|---|---|---|
| GB/T 10357.3-2013 | Covers mechanical strength and durability test methods for office chairs | |
| GB 28007-2011 | Specifies safety requirements for general-purpose office chairs |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to furniture size measurement for office seating products; 2. GB/T 10357.3-2013: Covers mechanical strength and durability test methods for office chairs; 3. GB 28007-2011: Specifies safety requirements for general-purpose office chairs; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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