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|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (W x D x H) | 650 x 650 x 1200mm | |
|---|---|---|
| Seat width | 500 mm | |
| Seat depth | 480 mm | |
| Seat height adjustment range | 520mm | |
| Backrest height | 680 mm | |
| Headrest height | 120 mm | |
| Headrest width | 320 mm | |
| Armrest height above seat | 260mm | |
| Armrest pad size | 90 x 250 mm | |
| Five-star base radius | 320 mm | |
| Caster diameter | 60 mm | |
| 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 | 19kg | |
|---|---|---|
| Seat foam density | 50kg/m³ | |
| Seat foam thickness | 50 mm | |
| Back mesh tensile strength | ≥300 N/5cm | |
| Caster rolling durability | ≥100000 rolling cycles | |
| Gas lift vertical load static test | ≥150 kg for 1 minute | |
| Suggested daily continuous use duration | 8 hours | |
| Net product weight | 20kg | |
| Seat cushion foam density | 55kg/m³ | |
| Seat foam rebound rate | 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest support | Tight-weave grey breathable polyester mesh stretched over nylon inner frame | |
|---|---|---|
| Seat cushion core | Molded high-resilience polyurethane foam wrapped in non-woven fabric, upholstered in grey woven polyester fabric | |
| Seat fabric abrasion resistance | ≥30000 Martindale cycles | |
| Armrest construction | Fixed T-shaped armrests made of glass-fiber reinforced nylon with integrated matte grey PP arm pads | |
| Height adjustment mechanism | Class 3 chrome-plated steel gas lift with 100 mm stroke, black plastic outer trim cover | |
| Tilt mechanism | 2.5 mm thick pressed steel synchro-tilt chassis with black powder coat finish, fitted with tension adjustment knob and single lock lever | |
| Five-star base | Injection molded glass-fiber reinforced nylon 5-star base with matte light grey finish, 2.0 mm wall thickness | |
| Casters | 60 mm diameter twin-wheel hard PU casters with nylon wheel cores, non-marking contact surface | |
| Headrest cushion | Curved padded headrest with 20 mm thick foam pad, upholstered in matching grey breathable mesh | |
| Backrest construction | Tight-wave horizontal-line grey breathable polyester mesh stretched taut over a 3mm thick glass-fiber reinforced nylon inner back frame with integrated curved lumbar contour | |
| Seat upholstery abrasion rating | ≥30,000 Martindale cycles | |
| Height adjustment component | Class 3 chrome-plated cold-rolled steel gas lift with 50mm outer tube diameter, 100mm vertical stroke, fitted with black ABS plastic outer trim cover |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic height adjustment via right-side unmarked lever, providing 100 mm of vertical travel to accommodate 185cm user height | |
|---|---|---|
| Backrest tilt function | Synchro tilt mechanism that tilts backrest at 1:2.2 ratio relative to seat pan, with adjustable tilt tension to match user weight | |
| Tilt lock function | Single-position tilt lock that secures backrest in upright working position via left-side adjustment lever | |
| Headrest adjustment | Height-adjustable curved headrest with 80 mm vertical travel, fixed 15° backward tilt angle to support cervical spine in upright and reclined positions | |
| Swivel function | 360° unlimited horizontal swivel around central gas lift axis for multi-directional workspace access | |
| Mobility function | Dual-wheel casters roll smoothly on hard wood, tile and low-pile carpet flooring, 360° swivel per caster for tight turning radius | |
| Lumbar support | Built-in static curved lumbar support zone integrated into mesh back frame, positioned at 220mm above seat surface to align with natural lumbar curve | |
| 360° swivel function | Unlimited 360° horizontal swivel around the central gas lift axis via sealed thrust bearing in the tilt chassis, allowing access to adjacent workspace areas without repositioning the chair base | |
| Static lumbar support | Built-in curved lumbar support zone integrated into the mesh back frame, positioned 220mm above the seat surface to align with the natural L3-L4 lumbar spine curve for upright seated posture support | |
| Recline Angle / Lock Reference | 125° with 3 suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120kg | |
| Rotation / Mobility Configuration | 360° swivel with 5-caster multidirectional movement |
Verified carton / gross weight / assembly / loading data
| Number of shipping cartons | 1 | |
|---|---|---|
| Shipping carton dimensions (L x W x H) | 820 x 630 x 380 mm | |
| Gross shipping weight | 22kg | |
| Shipping volume per unit (CBM) | 0.20 CBM | |
| Estimated assembly time | 15minutes per unit | |
| 20ft GP container loading quantity | 300 units | |
| 40ft HQ container loading quantity | 720 units | |
| Packaging material | 5-layer corrugated carton with 20 mm EPS foam corner protection, plastic part bags, hardware blister pack and printed assembly manual | |
| Gross shipping weight per unit | 23kg | |
| Shipping volume per unit | 0.21 CBM |
Recommended spaces / users / usage modes
| Open plan office workstation use | Suitable for 8-hour daily use by general office staff at standard 760mm height workstations, as seat height range aligns with standard desk dimensions | |
|---|---|---|
| Home office workspace | Neutral grey aesthetic matches modern residential office interiors, breathable mesh back maintains comfort during extended remote work sessions | |
| Meeting room and conference seating | 360° swivel and rolling mobility supports easy access to shared meeting tables, fixed armrests provide consistent upper body support during long meetings | |
| Coworking space shared seating | Durable upholstery and 120 kg weight capacity supports rotating multi-user use across different height users | |
| Executive private office secondary seating | Sleek high-back design with headrest provides appropriate support for short-duration guest or assistant seating in executive offices | |
| Open plan office workstations | Suitable for 8-hour daily use by general administrative and operational staff at standard 760mm height workstations, as the 100mm seat height adjustment range aligns with standard desk dimensions for users 185cm tall | |
| Conference and meeting room seating | 360° swivel and smooth-rolling casters support easy access to shared meeting tables, while fixed T-armrests provide consistent upper body support during 3 hour meetings | |
| Training room and classroom seating | Compact 650mm overall width and rolling mobility support flexible rearranging of seating layouts for training sessions, while static lumbar support maintains comfort during 4 hour learning activities |
European market access and chemical requirements
| EN 1335-1:2020 | Recommended applicability: Office furniture - Office work chairs - Part 1: Dimensions, determines dimensional suitability for seated office work | |
|---|---|---|
| EN 1335-2:2018 | Recommended applicability: Office furniture - Office work chairs - Part 2: Safety requirements, sets minimum safety performance criteria for structural stability and strength | |
| EN 1335-3:2018 | Recommended applicability: Office furniture - Office work chairs - Part 3: Test methods, defines standardized test procedures to verify compliance with safety requirements |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Recommended applicability: General Purpose Office Chairs - Tests, specifies performance and durability requirements for commercial task chairs including static load, cyclic testing and stability | |
|---|---|---|
| ANSI/BIFMA X5.4-2020 | Recommended applicability: Lounge and Public Seating, reference standard for occasional multi-user lobby or breakout area seating applications | |
| Recommended maximum static user weight | 120 kg | |
| Maximum rated user weight | Recommended references: ANSI/BIFMA X5.1 |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applicable standards and test results require confirmation | |
|---|---|---|
| GB/T 10357.3-2013 | Recommended applicability: Test of mechanical properties of furniture - Strength and durability of chairs and stools, specifies static load, impact and durability test methods for seating | |
| GB 18584-2001 | Recommended applicability: Indoor decorating and refurbishing materials - Limit of harmful substances of wood based furniture, sets formaldehyde emission limits for any wood or composite components in the chair | |
| GB/T 29648-2013 | Recommended applicability: Office chair with mesh fabrics, specifies material performance requirements for mesh back upholstery including tensile and tear strength |
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: Recommended applicability: Test of mechanical properties of furniture - Strength and durability of chairs and stools, specifies static load, impact and durability test methods for seating; 3. GB 18584-2001: Recommended applicability: Indoor decorating and refurbishing materials - Limit of harmful substances of wood based furniture, sets formaldehyde emission limits for any wood or composite components in the chair; 4. GB/T 29648-2013: Recommended applicability: Office chair with mesh fabrics, specifies material performance requirements for mesh back upholstery including tensile and tear strength; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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