| Submitted | Field | Original | 修改后参数 | Note / Status |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 650 x 630 x 1180mm | |
|---|---|---|
| Seat height adjustment range | 520mm | |
| Seat cushion size | 490 x 480 mm | |
| Seat cushion foam thickness | 50 mm | |
| Backrest height (from seat pan to top of back frame) | 620 mm | |
| Headrest size | 300 x 180 mm | |
| Headrest height adjustment range | 80 mm | |
| Fixed armrest height (above seat pan) | 210 mm | |
| Five-star base leg span diameter | 680 mm | |
| Caster diameter | 50 mm | |
| Lumbar support height (above seat pan) | 230mm | |
| Finished Seat Cushion Thickness | 90mm | |
| Backrest Padding Thickness | 70mm | |
| Lumbar Support Zone Height | 240mm | |
| Clear Width Between Armrests | 540mm |
Net weight / load capacity / users / durability
| Net weight range | 18.5kg | |
|---|---|---|
| Recommended maximum user weight | 120 kg | |
| Seat foam density | 45 kg/m³ | |
| Seat foam rebound rate | 60% | |
| Back mesh abrasion resistance | ≥30000 Martindale cycles | |
| Seat fabric abrasion resistance | ≥40000 Martindale cycles | |
| Gas lift static load rating | Class 3 (150 kg static load) | |
| Five-star base static load capacity | ≥1136 kg | |
| Caster rolling durability | ≥100000 rolling cycles | |
| Tilt mechanism cycle durability | ≥30000 lock/unlock cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest mesh | High-tensile polyester elastic mesh, tensioned on nylon frame | |
|---|---|---|
| Seat cushion upholstery | Woven breathable grey fabric, stitched over foam core | |
| Seat cushion core | High-resilience polyurethane foam, supported by molded plywood seat pan | |
| Armrests | Injection-molded grey nylon, fixed to seat frame with integrated support structure | |
| Back frame and headrest frame | Reinforced injection-molded grey polypropylene/nylon blend | |
| Height adjustment gas lift | Chrome-plated steel outer tube, black powder-coated lower column, Class 3 certified gas spring | |
| Five-star base | Injection-molded grey nylon, ribbed for structural reinforcement | |
| Casters | Dual-wheel grey PU tread, nylon hub, swivel stem fitting | |
| Tilt mechanism chassis | 2.5mm thick stamped steel, black powder-coated finish | |
| Lumbar support component | Curved padded nylon support pad, connected to back frame via sliding plastic track | |
| Seat Internal Support Board Thickness | 14mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14mm bent plywood/composite reinforced frame |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic height adjustment via right-side lever, 100mm stroke, locks at any position within range | |
|---|---|---|
| Backrest tilt function | Synchro-tilt mechanism tilts backrest up to 12° recline, with adjustable tension knob under seat | |
| Tilt lock function | Multi-position tilt lock via under-seat paddle, locks backrest at upright and 2 intermediate recline positions | |
| Headrest adjustment | Vertical height adjustment via sliding bracket, 15° up/down angle tilt to support cervical spine | |
| 360° swivel rotation | Full 360-degree horizontal rotation of seat and back around central gas lift axis | |
| Mobility function | Free-rolling dual casters allow multi-directional movement on hard floors and low-pile carpet | |
| Lumbar support | Integrated curved lumbar zone in mesh back provides passive lower back support without separate adjustment | |
| Backrest synchro-tilt | Synchronized tilt mechanism tilts backrest up to 12° recline with seat tilt ratio 1:2.5, tension adjustable via round knob under front left seat | |
| Lumbar support adjustment | Push-button activated height-adjustable lumbar pad, 50mm vertical travel to align with user’s L3-L5 spinal curve | |
| Upholstery ventilation | Open-weave mesh back allows 60%+ air permeability to reduce heat buildup during extended seated use | |
| Headrest tilt range | 30° total (15° up / 15° down) | |
| Recline Angle / Lock Reference | 125° with 3 suggested lock positions |
Verified carton / gross weight / assembly / loading data
| Packaging configuration | 1 carton per chair, disassembled for flat-pack shipping | |
|---|---|---|
| Reference carton dimensions | 850 x 650 x 380 mm | |
| Reference gross weight per carton | 21kg | |
| Reference carton volume | 0.21 CBM | |
| Assembly time requirement | 25minutes per unit | |
| 20ft GP container loading quantity | 150 units | |
| 40HQ container loading quantity | 360 units | |
| Reference Package Count | 1 set / 2 cartons | |
| Reference Assembly Time | 40minutes per set | |
| Reference Packaged Gross Weight | 23kg/set |
Recommended spaces / users / usage modes
| Open plan office workstations | Suitable for 8-hour daily desk work, breathable mesh back prevents overheating during extended use | |
|---|---|---|
| Home office spaces | Neutral grey finish fits modern home interiors, swivel and tilt functions support both work and short breaks | |
| Meeting and conference rooms | Neutral color and professional appearance suit formal meeting spaces, swivel function allows easy interaction between participants | |
| Task workstations for administrative staff | Adjustable height accommodates user heights 185cm, lumbar support reduces lower back fatigue during typing and desk tasks | |
| Recommended paired furniture | Standard 760mm height office desks, standard height adjustable standing desks | |
| Task workstations for customer service staff | Adjustable height and lumbar support accommodates users 185cm tall, reduces lower back fatigue during prolonged typing and screen-based tasks | |
| Temporary staff and hot-desking stations | Durable construction and easy-to-clean surfaces support shared multi-user environments, standard dimensions fit all standard under-desk knee clearances | |
| Recommended Matching Desk Size | 2.4m executive desk |
European market access and chemical requirements
| EN 1335-1:2020 | Office furniture - Office work chairs - Part 1: Dimensions, applicable as reference for ergonomic dimension acceptance criteria | |
|---|---|---|
| EN 1335-2:2018 | Office furniture - Office work chairs - Part 2: Safety requirements, applicable reference for structural safety and stability acceptance | |
| EN 1335-3:2009 | Office furniture - Office work chairs - Part 3: Test methods, applicable as reference for durability verification test procedures |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Standard for Office Chairs, applicable reference for static load, durability and stability performance acceptance for commercial use | |
|---|---|---|
| Five-star base static load capacity | ≥1136 kg |
Standards applicable to China-market projects
| GB/T 3326-2016 | Office furniture - General technical requirements for chairs and stools, applicable for dimensional stability and structural integrity testing reference | |
|---|---|---|
| GB/T 35607-2017 | Green product assessment - Furniture, applicable reference for formaldehyde and harmful substance limits for procurement acceptance | |
| GB/T 10357.3-2013 | Test of mechanical properties of furniture - Strength and durability of chairs and stools, applicable reference for static load and fatigue test procedures |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Office furniture - General technical requirements for chairs and stools, applicable for dimensional stability and structural integrity testing reference; 2. GB/T 35607-2017: Green product assessment - Furniture, applicable reference for formaldehyde and harmful substance limits for procurement acceptance; 3. GB/T 10357.3-2013: Test of mechanical properties of furniture - Strength and durability of chairs and stools, applicable reference for static load and fatigue test procedures; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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