| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall assembled dimensions | 620 x 670 x 1230 mm | |
|---|---|---|
| Seat width | 510 mm | |
| Seat depth | 490 mm | |
| Adjustable seat height range | 550 mm | |
| Backrest height from seat pan | 680 mm | |
| Backrest width | 490 mm | |
| Seat padding thickness | 80 mm | |
| Backrest padding thickness | 60 mm | |
| Five-star base diameter | 350 mm | |
| Caster diameter | 60 mm | |
| Armrest height above seat pan | 200 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Lumbar Support Zone Height | 240 mm | |
| Clear Width Between Armrests | 540 mm |
Net weight / load capacity / users / durability
| Recommended user weight capacity | 136 kg | |
|---|---|---|
| Chair net weight range | 18 kg | |
| Five-star base static load rating | 1136 kg | |
| Caster rolling durability | 300000 cycles | |
| Recommended daily usage duration | 8 hours | |
| Upholstery abrasion resistance reference | 50000 Martindale cycles | |
| Warranty period for structural components | 3 years | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ | |
| Upholstery Thickness / Abrasion Reference | 1.4 mm / 50000 cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Black faux leather (PU) with white outer back shell, 1.0 mm thickness | |
|---|---|---|
| Seat core padding | 70 kg/m³ density cold-molded polyurethane foam, 80 mm thick | |
| Backrest core padding | 120 kg/m³ density cold-molded polyurethane foam, 60 mm thick | |
| Five-star base | Polished chrome-plated steel, 1.5 mm wall thickness | |
| Gas lift cylinder | Class 3 chrome-plated steel, 60 mm outer diameter, 100 mm travel stroke | |
| Control mechanism | 2.5 mm thick steel plate tilt mechanism with tension adjustment and upright lock | |
| Casters | Black non-marking nylon twin-wheel casters, 60 mm diameter, universal stem fitting | |
| Armrests | Fixed padded PU armrests with polypropylene support structure | |
| Internal seat frame | 12 mm thick multi-ply plywood seat pan with steel reinforcement | |
| Seam stitching | 8 mm stitch pitch, reinforced polyester thread | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame |
Adjustment / rotation / tilt / mobility / storage features
| Pneumatic seat height adjustment | 100 mm vertical travel via side-mounted lever, adjusts to match desk heights between 760 mm | |
|---|---|---|
| 360-degree swivel rotation | Full rotation enabled by central gas lift and base bearing, no rotation stops | |
| Tilt and lock mechanism | 15-degree backward recline with upright position lock, adjustable tilt tension knob to match user weight | |
| Rolling mobility | Twin-wheel casters suitable for hard wood and low-pile carpet floors, 360-degree wheel rotation | |
| Contoured back support | Segmented high-back design provides integrated lumbar support without separate adjustable cushion | |
| Waterfall seat edge | Rounded front seat edge reduces pressure on back of thighs during extended 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
| Shipping carton dimensions | 680 x 380 x 590 mm | |
|---|---|---|
| Gross shipping weight per carton | 21 kg | |
| Shipping volume per unit | 0.15 CBM | |
| Assembly time | 30 minutes | |
| 20ft container loading quantity | 180 units | |
| 40HQ container loading quantity | 440 units | |
| 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 |
Recommended spaces / users / usage modes
| Home office workspace | Suitable for individual home study or dedicated home office setups paired with L-shaped or straight computer desks, matches modern residential wood furniture finishes | |
|---|---|---|
| General open-plan office use | Appropriate for employee workstations in small to mid-sized offices, supports full-shift desk work for standard-weight users | |
| Executive private office | Suitable for junior to mid-level manager private offices, polished chrome base and two-tone finish coordinates with wood desk and storage furniture | |
| Co-working space seating | Durable construction and easy-to-clean faux leather upholstery suitable for shared co-working workstations, swivel and caster function supports flexible movement | |
| Conference room seating | High-back support and professional styling suitable for small to medium conference rooms, swivel function allows easy engagement with meeting participants | |
| 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 work chairs - Part 1: Dimensions - determination of dimensions, applicable for verifying ergonomic sizing for office use | |
|---|---|---|
| EN 1335-2:2018 | Office furniture - Office work chairs - Part 2: Safety requirements, applicable for structural safety, stability and strength testing | |
| EN 1335-3:2018 | Office furniture - Office work chairs - Part 3: Test methods, applicable for validating mechanical performance against safety requirements |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Standard for Office Chairs - General Purpose Office Chairs, applicable for testing static load, durability, stability and caster performance for commercial office use |
|---|
Standards applicable to China-market projects
| GB/T 3326-2016 | Applicable standards and test results require confirmation | |
|---|---|---|
| GB/T 10357.3-2013 | Test of mechanical properties of furniture - Strength and durability of chairs and stools, applicable for static load, impact and fatigue testing of chair structure | |
| GB 18584-2001 | Indoor decorating and refurbishing materials - Limit of harmful substances of wood based furniture, applicable for testing formaldehyde and heavy metal content in seat panels and finish materials |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applicable standards and test results require confirmation; 2. GB/T 10357.3-2013: Test of mechanical properties of furniture - Strength and durability of chairs and stools, applicable for static load, impact and fatigue testing of chair structure; 3. GB 18584-2001: Indoor decorating and refurbishing materials - Limit of harmful substances of wood based furniture, applicable for testing formaldehyde and heavy metal content in seat panels and finish materials; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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