| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 680 x 680 x 1100 mm | |
|---|---|---|
| Seat width | 520 mm | |
| Seat depth | 500 mm | |
| Seat height range (floor to top of seat) | 540 mm | |
| Backrest height (top of seat to top of back) | 620 mm | |
| Backrest width | 500 mm | |
| Armrest height (top of arm to top of seat) | 210 mm | |
| 5-star base diameter | 660 mm | |
| Caster diameter | 50 mm | |
| Armrest length | 320 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 | 120 kg | |
|---|---|---|
| Net weight reference | 18 kg | |
| Foam density (seat cushion) | 45 kg/m³ | |
| Foam thickness (seat cushion) | 100 mm | |
| Upholstery abrasion resistance reference | 100000 cycles | |
| Gas lift cycle life reference | 100000 cycles | |
| Seat foam density | 45 kg/m³ | |
| Backrest foam density | 35 kg/m³ | |
| Upholstery Martindale abrasion resistance | 100000 cycles | |
| Gas lift cycle life | 100000 cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Light gray matte faux leather with horizontal ribbed stitching pattern | |
|---|---|---|
| Seat and back padding | High-resilience polyurethane foam core wrapped with non-woven liner | |
| Internal seat frame | Plywood or steel inner support frame with molded foam foundation | |
| Armrests and back support frame | Polished cast aluminum fixed arm structure connecting seat to back side rails | |
| Height adjustment gas lift | Chrome-plated steel pneumatic cylinder with black plastic control housing | |
| 5-star base | Polished aluminum 5-leg base with ribbed upper surface | |
| Casters | Black nylon twin-wheel casters with chrome mounting stems | |
| Stitching details | Even horizontal stitched ribs across backrest and seat front edge | |
| Seat padding core | High-resilience molded polyurethane foam with 45 kg/m³ density, wrapped with non-woven fabric liner | |
| Backrest padding core | High-resilience cut polyurethane foam with 35 kg/m³ density, wrapped with non-woven fabric liner | |
| Armrest and back support frame | Polished cast aluminum fixed arm structure connecting seat to back side rails, integrated load-bearing design | |
| Stitching thread | High-tensile polyester thread with uniform 8 mm stitch pitch for horizontal rib seams |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic height adjustment via side-mounted lever, with 100 mm total travel range | |
|---|---|---|
| 360-degree swivel | Full continuous rotation around central gas lift axis, supported by precision bearing | |
| Tilt mechanism | Synchro or center-tilt mechanism with adjustable tension and lockable upright position | |
| Fixed armrest support | Rigid stationary armrests integrated into side frame, providing elbow support at fixed 210 mm height above seat | |
| Mobility | 5 dual-wheel casters for smooth rolling on hard and carpeted office floors | |
| Weight distribution | 5-point base geometry evenly distributes 120 kg maximum user load across floor contact points | |
| Seat tilt function | Center-tilt mechanism with adjustable spring tension and 1 lockable upright position, maximum 12 degree backward tilt angle | |
| Floor mobility | 5 dual-wheel nylon casters for smooth rolling on hard and low-pile carpeted office floors, supporting 360-degree directional movement | |
| Load distribution | 5-point base geometry evenly distributes 120 kg maximum user load across 5 floor contact points to reduce floor pressure | |
| Tilt tension adjustment | Rotary knob under seat adjusts tilt mechanism spring tension to match user body weight, with 5 levels of resistance adjustment | |
| Recline Angle / Lock Reference | 125° with 3 suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg |
Verified carton / gross weight / assembly / loading data
| Packing configuration | 1 chair per carton, flat-packed disassembled with back, seat, base, gas lift, arms and hardware separately bagged | |
|---|---|---|
| Carton dimensions | 820 x 620 x 420 mm | |
| Gross weight per carton | 21 kg | |
| Volume per carton (CBM) | 0.214 CBM | |
| Assembly time | 30 minutes | |
| 20ft container loading quantity | 260 units | |
| Assembly time (single person) | 30 minutes | |
| 40ft HQ container loading quantity | 620 units | |
| Reference Package Count | 1 set / 2 cartons | |
| Reference Assembly Time | 40 minutes per set |
Recommended spaces / users / usage modes
| Private executive offices | Suitable for manager and director workstations, pairing with L-shaped executive desks to deliver a premium professional aesthetic | |
|---|---|---|
| Conference and meeting rooms | Ideal for conference table seating around 12-person boardroom tables, providing ergonomic support for 4 hour meetings | |
| Open-plan workstations | Suitable for premium hot-desking and assigned task stations in high-end co-working or corporate office spaces | |
| Reception and visitor areas | Appropriate for visitor seating outside executive suites and in upscale reception lounges | |
| Home office premium setups | Suitable for professional home workspaces requiring commercial-grade build quality and executive styling | |
| Training and seminar rooms | Suitable for premium training facility seating with adjustable height to accommodate different user groups | |
| 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 Office furniture - Office chairs - Part 1: Dimensions | Reference standard for ergonomic dimensional requirements of office task chairs | |
|---|---|---|
| EN 1335-2:2019 Office furniture - Office chairs - Part 2: Safety requirements | Applicable for structural safety, stability and component strength validation | |
| EN 1335-3:2019 Office furniture - Office chairs - Part 3: Test methods | Reference test procedure for durability, strength and stability performance verification |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 General-Purpose Office Chairs | Applicable for safety, durability and structural performance testing of commercial office task chairs | |
|---|---|---|
| BIFMA e3-2020 Furniture Sustainability Standard | Reference for sustainability and emissions compliance in commercial furniture procurement |
Standards applicable to China-market projects
| GB/T 38051-2019 Office Furniture - Office Chairs | Applicable for general safety, strength and durability testing of swivel office chairs used in commercial office environments | |
|---|---|---|
| GB/T 3324-2017 General Technical Requirements for Wooden Furniture | Reference for internal wood-based frame components if plywood structure is used in seat pan | |
| GB 18401-2010 National General Safety Technical Code for Textile Products | Applicable for upholstery fabric/leather hazardous substance limits for direct skin contact surfaces | |
| GB/T 10000-1988 Human dimensions of Chinese adults | Reference for ergonomic dimensional design to fit Chinese adult user groups |
This product must meet the following technical requirements: 1. GB/T 38051-2019 Office Furniture - Office Chairs: Applicable for general safety, strength and durability testing of swivel office chairs used in commercial office environments; 2. GB/T 3324-2017 General Technical Requirements for Wooden Furniture: Reference for internal wood-based frame components if plywood structure is used in seat pan; 3. GB 18401-2010 National General Safety Technical Code for Textile Products: Applicable for upholstery fabric/leather hazardous substance limits for direct skin contact surfaces; 4. GB/T 10000-1988 Human dimensions of Chinese adults: Reference for ergonomic dimensional design to fit Chinese adult user groups; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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