| Submitted | Field | Original | 修改后参数 | Note / Status |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (W x D x H) | 670 x 700 x 1200mm | |
|---|---|---|
| Seat height adjustment range | 520mm | |
| Backrest height (top of seat to headrest) | 740 mm | |
| Backrest width at lumbar region | 520 mm | |
| Seat depth | 490 mm | |
| Seat width between armrests | 500 mm | |
| Armrest height above seat | 210 mm | |
| 5-star base diameter | 700 mm | |
| Caster diameter | 60 mm | |
| Gas lift column exposed height (mid-adjustment) | 180 mm | |
| Backrest width at shoulder region | 560mm | |
| 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
| Chair net weight range | 24kg | |
|---|---|---|
| Maximum recommended static user weight | 150 kg | |
| Seat foam static load capacity | ≥120 kg with ≤10% permanent deformation after 10000 cycles | |
| Base static load rating | ≥1136 kg | |
| Caster rolling durability | ≥100000 rolling cycles without failure | |
| Seat height adjustment cycle life | ≥100000 up/down cycles | |
| Suggested daily continuous use duration | Up to 8 hours per user | |
| Available standard color count | ≥4 (beige, black, dark grey, brown) | |
| Seat foam permanent deformation resistance | ≤10% thickness loss after 10000 cyclic compression loads at 120kg | |
| 5-star base static load rating | ≥1136kg |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and backrest upholstery | 1.5mm thick PU faux leather with light beige finish, contrasting dark brown lower back panel | |
|---|---|---|
| Seat cushion padding | 60mm thick high-density molded polyurethane foam, density 55kg/m³, ≥40% rebound rate | |
| Backrest padding | 40mm thick medium-density polyurethane foam, density 40kg/m³ | |
| Internal backrest frame | 15mm thick molded plywood inner frame with steel reinforcement brackets | |
| Armrest structure | Padded PU armrest tops matching seat upholstery, with polished die-cast aluminum trim caps visible at rear arm edges | |
| Tilt mechanism assembly | 3mm thick stamped steel chassis with black powder-coated finish | |
| Gas lift cylinder | Chrome-plated Class 3 carbon steel gas lift, 50mm outer diameter, 80mm adjustable stroke | |
| 5-star swivel base | Polished die-cast aluminum five-star base, 3mm wall thickness at leg sections | |
| Casters | Black nylon twin-wheel casters with polished silver accent ring around wheel face, suitable for hard floor and low-pile carpet use | |
| Seat underside cover | Black rigid PP plastic cover enclosing mechanism and seat frame undersurface | |
| Decorative stitching | Black contrast stitching along rear side contours of backrest, 8mm stitch pitch for uniform upholstery seam | |
| Headrest padding | 50mm thick soft polyurethane foam, density 45kg/m³, integrated with top of backrest shell |
Adjustment / rotation / tilt / mobility / storage features
| 360-degree swivel rotation | Full 360° horizontal swivel enabled by central bearing between gas lift and seat mechanism, no rotation lock | |
|---|---|---|
| Seat height adjustment | Pneumatic height adjustment via right-side seat lever, 80mm total travel to match 760mm standard desk height | |
| Synchronized tilt function | Synchronized seat and back tilt with 2:1 ratio (back tilts 2° for every 1° of seat tilt), maximum 18° back recline angle | |
| Tilt tension adjustment | Rotary knob under front of seat adjusts tilt resistance to match user weight between 150kg | |
| Tilt position locking | Multi-position tilt lock allows user to lock backrest in upright position or up to 4 intermediate recline positions | |
| Smooth rolling mobility | Dual-wheel casters allow omnidirectional movement on hard flooring and low-pile carpet without surface scratching | |
| Built-in lumbar support | Contoured fixed lumbar support at lower back height (220mm above seat surface) via pre-shaped backrest foam and shell | |
| Integrated headrest | Fixed padded headrest at top of high backrest, positioned to support cervical spine during upright and reclined sitting | |
| 360-degree horizontal swivel | Full unobstructed 360° horizontal rotation enabled by sealed ball bearing between gas lift top and seat mechanism, no rotation lock position | |
| Synchronized seat-back tilt | Synchronized tilt mechanism with 2:1 recline ratio (backrest tilts 2° for every 1° of seat pan tilt), maximum 18° backrest recline angle to avoid over-recline | |
| Multi-position tilt locking | Left-side seat lever enables tilt lock in upright position and up to 4 intermediate recline positions, lock engages without requiring user to shift body weight | |
| Omnidirectional rolling mobility | Dual-wheel casters allow 360° omnidirectional movement on tile, hardwood, laminate and low-pile carpet (≤6mm pile height) without surface scratching or wheel marking |
Verified carton / gross weight / assembly / loading data
| Number of shipping cartons | 1 carton | |
|---|---|---|
| Shipping carton dimensions (L x W x H) | 850 x 650 x 580 mm | |
| Gross shipping weight per unit | 28kg | |
| Shipping volume per unit | 0.32 CBM | |
| Assembly time per unit | 15minutes for 1 person with standard allen key tool | |
| 20ft GP container loading quantity | ≈85 units | |
| 40ft GP container loading quantity | ≈175 units | |
| Reference Package Count | 1 set / 2 cartons | |
| Reference Assembly Time | 40minutes per set | |
| Reference Carton Dimensions | 850 × 420 × 720mm |
Recommended spaces / users / usage modes
| Executive private office | Suitable for senior manager and executive private offices, matching executive desk height and formal office decor style | |
|---|---|---|
| Corporate boardroom seating | Suitable for boardroom and meeting room environments for long-duration meetings, providing upper back and head support | |
| Home office premium workspaces | Suitable for upscale home office setups with neutral decor, providing professional appearance and ergonomic support for remote work | |
| Client reception areas | Suitable for management-level client reception spaces, conveying a professional, polished brand impression | |
| Hard-floor office environments | Compatible with tile, hardwood, laminate and low-pile carpet commercial flooring without additional caster replacement | |
| Matching executive desk setups | Recommended to pair with 760mm height executive desks and matching leather guest seating for a coordinated office suite | |
| Management client reception areas | Suitable for director-level client meeting and reception spaces, conveying a polished, professional brand impression without overly ornate styling | |
| Hard-floor commercial office environments | Compatible with tile, polished hardwood, laminate and low-pile carpet commercial flooring without requiring separate soft-wheel caster replacement |
European market access and chemical requirements
| EN 1335-1:2020 | Suggested acceptance standard for office work chair dimensional and safety requirements, applicable for ergonomic dimension verification | |
|---|---|---|
| EN 1335-2:2018 | Suggested acceptance standard for office work chair mechanical performance requirements, applicable for strength, durability and stability testing | |
| EN 1335-3:2020 | Suggested acceptance standard for office work chair test methods, to be used alongside performance requirements for incoming inspection |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Suggested acceptance standard for general-purpose office chairs, applicable for static load, fatigue, durability and stability testing of all load-bearing components | |
|---|---|---|
| 5-star base outer diameter | 700mm |
Standards applicable to China-market projects
| GB/T 3326-2016 | Suggested acceptance standard for office furniture chair dimensional accuracy and stability, applicable for size and structural load verification | |
|---|---|---|
| GB/T 22800-2009 | Suggested acceptance standard for leather and artificial leather office chair upholstery quality, applicable for material wear and peel strength verification | |
| GB 28007-2011 | Suggested acceptance standard for office chair mechanical safety, applicable for edge safety, stability and structural durability testing | |
| GB/T 10357.3-2013 | Suggested acceptance standard for furniture mechanical performance testing of chairs and stools, applicable for static load, impact and fatigue testing of seat, back and armrests |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Suggested acceptance standard for office furniture chair dimensional accuracy and stability, applicable for size and structural load verification; 2. GB/T 22800-2009: Suggested acceptance standard for leather and artificial leather office chair upholstery quality, applicable for material wear and peel strength verification; 3. GB 28007-2011: Suggested acceptance standard for office chair mechanical safety, applicable for edge safety, stability and structural durability testing; 4. GB/T 10357.3-2013: Suggested acceptance standard for furniture mechanical performance testing of chairs and stools, applicable for static load, impact and fatigue testing of seat, back and armrests; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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