| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 630 x 640 x 1055 mm | |
|---|---|---|
| Seat width | 505 mm | |
| Seat depth | 440 mm | |
| Seat cushion thickness | 70 mm | |
| Seat height adjustment range (floor to seat top) | 515 mm | |
| Backrest height | 570 mm | |
| Fixed armrest height above seat | 180 mm | |
| Five-star base diameter | 640 mm | |
| Clearance between armrests | 500 mm | |
| Armrest to floor maximum height | 695 mm | |
| Backrest width (widest point) | 450 mm | |
| Caster wheel diameter | 50 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
| Maximum recommended user weight | 150 kg | |
|---|---|---|
| Net product weight | 14 kg | |
| Five-star base static load rating | 1000 kg | |
| Caster rolling durability rating | 100000 cycles | |
| Backrest maximum recline angle | 125 degrees | |
| Gas lift stroke length | 85 mm | |
| Recommended user height range | 1800 mm | |
| Seam stitch pitch | 8 stitches per inch | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest support panel | Tensioned breathable polyester mesh over black nylon Y-frame | |
|---|---|---|
| Integrated lumbar pad | Molded padded black fabric support attached to back frame | |
| Seat cushion core | 40D high-density molded polyurethane foam | |
| Seat upholstery | Red woven polyester fabric with abrasion resistance 50000 Martindale cycles | |
| Armrest construction | Fixed T-shaped black nylon frame with padded PU top surface | |
| Chair frame and seat shell | Glass-fiber reinforced black nylon | |
| Five-star base | Reinforced black polypropylene with 2.5mm wall thickness | |
| Gas lift cylinder | Class 3 black powder-coated steel, 50mm outer diameter | |
| Tilt mechanism plate | 3mm thick stamped steel with tension adjustment | |
| Caster wheels | 50mm diameter black PU tread swivel casters with nylon housing | |
| 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
| Seat height adjustment | Pneumatic gas lift activated by under-seat lever, 85mm vertical travel | |
|---|---|---|
| 360-degree swivel rotation | Full rotation enabled by central swivel joint between gas lift and base | |
| Back tilt function | Lockable synchro-tilt with adjustable tension, reclines to 125 degrees | |
| Fixed arm support | Non-adjustable T-armrests provide stable forearm support at 180mm above seat | |
| Integrated lumbar support | Contoured mesh lumbar zone maintains lower back curvature during upright or reclined seating | |
| Smooth mobility | Dual-wheel PU casters roll on hard floors and low-pile carpet without marking | |
| Coat hanger extension | Integrated molded hanger tab at backrest top for hanging garments | |
| Rocking lockout | Tilt mechanism locks in upright position for focused task work | |
| 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
| Open office workstations | Suitable for standard 1400 mm height desks, swivel caster design supports easy movement between work zones | |
|---|---|---|
| Home office setups | Compact 630mm width footprint fits small home desk spaces without overcrowding | |
| Conference and meeting rooms | Fixed armrests and breathable mesh support multi-hour seated meetings without discomfort | |
| Computer and study desks | Adjustable seat height accommodates teen and adult users for study or remote work tasks | |
| Coworking hot desks | Durable PU casters and easy-clean fabric support high-traffic shared seating environments | |
| Reception and admin stations | Professional black and red color scheme suits modern office reception aesthetic requirements | |
| 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 work chair dimensional requirements, applies to seat, back, and armrest dimension validation | |
|---|---|---|
| EN 1335-2:2018 | Office work chair safety and strength requirements, applies to structural load testing | |
| EN 1335-3:2009 | Office work chair test methods, applies to durability and stability verification |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Office chairs general purpose safety and performance standard, applies to structural and functional testing |
|---|
Standards applicable to China-market projects
| GB/T 3326-2016 | Office furniture: Desk and chair dimensional compatibility, applies to seat height and clearance verification | |
|---|---|---|
| GB/T 10357.3-2013 | Furniture mechanical performance test for chair strength and durability, applies to base and back load testing | |
| GB 18584-2001 | Indoor decoration material: Harmful substance limit for wooden furniture, applies to formaldehyde emission checks |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Office furniture: Desk and chair dimensional compatibility, applies to seat height and clearance verification; 2. GB/T 10357.3-2013: Furniture mechanical performance test for chair strength and durability, applies to base and back load testing; 3. GB 18584-2001: Indoor decoration material: Harmful substance limit for wooden furniture, applies to formaldehyde emission checks; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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