| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 685 x 720 x 1300 mm | |
|---|---|---|
| Seat height adjustment range | 530 mm | |
| Seat cushion size | 510 x 490 mm | |
| Seat cushion foam thickness | 80 mm | |
| Backrest height | 760 mm | |
| Headrest vertical adjustment travel | 90 mm | |
| Headrest angle adjustment range | 45° | |
| Five-star base diameter | 350 mm | |
| Caster wheel diameter | 65 mm | |
| Armrest height from seat | 110 mm | |
| Lumbar support vertical adjustment travel | 60 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
| Net weight | 18 kg | |
|---|---|---|
| Maximum static user load | 135 kg | |
| Seat foam density | 50 kg/m³ | |
| Seat foam rebound rate | 45% | |
| Mesh upholstery abrasion resistance | 50000 Martindale cycles | |
| Gas lift stroke length | 100 mm | |
| Caster rolling durability | 100000 cycles | |
| Five-star base static load rating | 1136 kg | |
| Recline angle lock positions | 3 | |
| Recommended daily usage duration | 8 hours |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest construction | Black polymer mesh stretched over reinforced nylon frame | |
|---|---|---|
| Headrest construction | Breathable mesh pad on curved nylon support frame | |
| Seat cushion core | 50D molded high-density polyurethane foam | |
| Seat upholstery | Abrasion-resistant black woven fabric over foam | |
| Armrest components | Rigid nylon support posts with soft PU padded top surfaces | |
| Height adjustment mechanism | Class 3 steel gas lift with black powder-coated finish | |
| Five-star base | Reinforced black nylon five-legged base | |
| Caster wheels | Dual-wheel black nylon casters with PU tread | |
| Chassis mechanism | 3 mm thick steel plate tilt mechanism with tension adjustment | |
| Internal back support frame | 1.5 mm thick steel reinforcement frame inside backrest | |
| Seat shell | Injection-molded polypropylene seat support pan under foam | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic adjustment via side lever, locks at any height within 100 mm travel | |
|---|---|---|
| Backrest recline function | Lockable tilt up to 126°, with adjustable tilt tension control via under-seat knob | |
| Headrest adjustment | 2D adjustment: 90 mm vertical travel and 45° angle pivot | |
| Armrest adjustment | Height-adjustable armrests with 40 mm vertical travel, locking at desired height | |
| Lumbar support adjustment | Height-adjustable curved lumbar pad to align with user's lower back curve | |
| Swivel function | 360° unrestricted swivel around central gas lift column | |
| Mobility function | Dual-wheel casters allow smooth rolling on hard floors and low-pile carpet | |
| Tilt tension control | Under-seat knob adjusts recline resistance to match user body weight | |
| 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 plan office workstations | Fits standard 760 mm desk height for daily employee task work | |
|---|---|---|
| Home office spaces | Compact footprint fits small home desks for remote work use | |
| Conference room seating | Swivel and adjustability supports dynamic meeting and collaboration | |
| Coworking shared spaces | Durable construction and adjustable features suit varied user groups | |
| Executive private offices | High-back design provides appropriate support for long work sessions | |
| Student study spaces | Ergonomic support reduces fatigue during extended study periods | |
| 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 | Applies to office chair dimensional safety and functional dimension requirements | |
|---|---|---|
| EN 1335-2:2018 | Applies to office chair structural strength, durability and stability requirements | |
| EN 1335-3:2009 | Applies to office chair test methods for structural performance verification |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair safety, durability and structural performance requirements | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Applies to caster and base durability testing for rolling office chairs |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office chair dimensional tolerance and structural stability requirements | |
|---|---|---|
| GB/T 10357.3-2013 | Applies to office chair seat and backrest strength and durability test methods | |
| GB 28007-2011 | Applies to office chair formaldehyde emission limits for upholstered components |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office chair dimensional tolerance and structural stability requirements; 2. GB/T 10357.3-2013: Applies to office chair seat and backrest strength and durability test methods; 3. GB 28007-2011: Applies to office chair formaldehyde emission limits for upholstered components; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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