| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (upright) | 680 x 680 x 1535 mm | |
|---|---|---|
| Seat width | 520 mm | |
| Seat depth | 450 mm | |
| Seat height adjustment range (floor to seat top) | 735 mm | |
| Backrest height (seat top to back top) | 570 mm | |
| Headrest height (back top to headrest peak) | 230 mm | |
| Five-star base diameter | 680 mm | |
| Overall depth (backrest to armrest front) | 400 mm | |
| Backrest upper width (shoulder area) | 625 mm | |
| Caster diameter | 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
| Recommended maximum user weight | 159 kg | |
|---|---|---|
| Net weight range upper value | 19.5 kg | |
| Five-star base static load capacity | 1136 kg | |
| Applicable user height | 188 cm | |
| Seam stitch pitch | 8 mm | |
| Gas lift durability cycle count | 120000 cycles | |
| Caster rolling durability | 40000 cycles | |
| Tilt mechanism fatigue resistance | 100000 cycles | |
| Applicable maximum user height | 188 cm | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | Breathable woven polyester mesh | |
|---|---|---|
| Seat cushion core | 55 kg/m³ high-density polyurethane foam | |
| Seat cushion thickness | 80 mm | |
| Back and armrest frame | PP plastic with 20% fiberglass reinforcement | |
| Five-star base | Glass-filled nylon, 3mm wall thickness | |
| Gas lift cylinder | Class 4 steel, 50mm outer diameter, 95mm stroke | |
| Casters | 60mm diameter PU tread, PA hub | |
| Retractable footrest | PP molded surface with steel support rail | |
| Tilt mechanism chassis | 2.5mm thick stamped steel plate | |
| Armrests and back frame | 20% fiberglass-reinforced PP molded construction | |
| Headrest padding | 40mm thick molded PU foam with PP support frame | |
| Lumbar support structure | Integral molded PP contoured rib support bonded to back frame |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic 95mm travel via gas lift, adjusts between 735 mm seat height | |
|---|---|---|
| Recline function | Lockable at 3 positions: 90° upright, 115° work, 135° napping | |
| Swivel function | 360° continuous rotation around central gas lift axis | |
| Retractable footrest | Pull-out sliding footrest extends 300mm from seat front for leg support | |
| Headrest adjustment | Height and angle adjustable curved headrest, 50mm vertical travel | |
| Lumbar support | Fixed contoured central lumbar support structure integrated into back frame | |
| Tilt tension adjustment | Knob-adjustable recline tension to match user body weight | |
| Mobility | 5 dual-wheel casters for smooth rolling on hard floors and low-pile carpet | |
| Lockable recline function | 3-position lock at 90° upright, 115° working, 135° rest angles | |
| 360° swivel rotation | Continuous full rotation around central gas lift axis for multi-direction access | |
| Retractable footrest operation | Pull-out sliding extension extends 300mm from seat front for elevated leg support | |
| Tilt tension control | Under-seat rotary knob adjusts recline resistance to match user weight |
Verified carton / gross weight / assembly / loading data
| Export carton dimensions | 880 x 700 x 360 mm | |
|---|---|---|
| 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 | Suitable for 8-hour daily seated work with ergonomic lumbar and head support | |
|---|---|---|
| Home office setups | Fits standard 760 mm height office desks, supports reclined rest breaks | |
| Managerial private offices | High-back profile provides upper back and neck support for extended seated tasks | |
| Meeting and conference rooms | 360° swivel and smooth casters support easy movement during collaborative discussions | |
| Nap break spaces | 135° recline with extended footrest supports short rest periods during workdays | |
| User height range | Fits users 188 cm tall with adjustable seat and headrest positions | |
| Private managerial offices | High-back profile provides upper back and neck support for extended meetings and tasks | |
| Workplace nap break areas | 135° recline with extended footrest supports comfortable short rest periods during workdays |
EU Market Access Requirements* EN Standards
| EN 1335-1:2020 | Applies to ergonomic dimensional requirements for office task chairs | |
|---|---|---|
| EN 1335-2:2018 | Applies to safety, strength and durability requirements for office work chairs | |
| EN 1335-3:2020 | Applies to stability and structural test methods for office chairs |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair durability, strength and safety requirements | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Applies to large-user office chair load capacity testing for users up to 159kg | |
| Gas lift durability cycles | 120000 |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to dimensional measurement of office chair functional clearances | |
|---|---|---|
| GB/T 10357.3-2013 | Applies to mechanical strength and durability testing of office chair seats and backs | |
| GB/T 28007-2011 | Applies to office chair caster durability and rolling performance requirements |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to dimensional measurement of office chair functional clearances; 2. GB/T 10357.3-2013: Applies to mechanical strength and durability testing of office chair seats and backs; 3. GB/T 28007-2011: Applies to office chair caster durability and rolling performance requirements; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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