| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 737 x 737 x 1105 mm | |
|---|---|---|
| Seat width | 508 mm | |
| Seat depth | 508 mm | |
| Seat height adjustment range | 419 mm to 559 mm | |
| Backrest width | 483 mm | |
| Backrest height | 610 mm | |
| Armrest height adjustment travel | 80 mm | |
| Armrest pad dimensions | 250 x 80 mm | |
| Five-star base full span | 700 mm | |
| Caster diameter | 60 mm | |
| Gas lift column diameter | 50 mm | |
| Seat cushion foam thickness | 89 mm | |
| Knee clearance under seat | 120 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Backrest Padding Thickness | 70 mm | |
| Lumbar Support Zone Height | 240 mm |
Net weight / load capacity / users / durability
| Net product weight | 18.6 kg | |
|---|---|---|
| Maximum recommended user weight | 125 kg | |
| Caster rolling durability rating | 60000 cycles | |
| Gas lift static load rating | 150 kg | |
| Five-star base static load capacity | 1136 kg | |
| Mesh upholstery abrasion resistance | 50000 Martindale cycles | |
| Seat foam density | 55 kg/m³ | |
| Foam rebound rate | 60% | |
| Warranty period | 5 years | |
| Available color options | 3 options |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | High-tenacity breathable nylon mesh | |
|---|---|---|
| Seat core padding | Cold-cured high-resilience molded polyurethane foam | |
| Seat upholstery | Woven abrasion-resistant polyester fabric | |
| Structural back frame | Reinforced glass-fiber nylon (PP) | |
| Armrest supports | Injection-molded rigid nylon (PP) | |
| Armrest pads | Soft-touch polyurethane padding over nylon core | |
| Five-star base | Glass-fiber reinforced nylon, 3mm wall thickness | |
| Gas lift column | SGS-certified Class 3 chrome-plated steel tube | |
| Caster wheels | Dual-wheel polyurethane over nylon hub | |
| Seat underpan mechanism | 3mm thick stamped steel | |
| Lumbar support pad | Flexible TPE cushion attached to mesh back | |
| Seam stitch pitch | 3 stitches per cm |
Adjustment / rotation / tilt / mobility / storage features
| Pneumatic seat height adjustment | 140mm vertical travel via right-side lever, locks at any height | |
|---|---|---|
| Multi-position tilt locking | 3 lock positions including 90-degree upright, 105-degree relaxed, 105-degree full recline | |
| Tilt tension adjustment | Rotary knob under seat adjusts resistance for user weight between 125 kg | |
| Height-adjustable armrests | 80mm vertical travel, locks at 5 preset height positions for elbow alignment | |
| Smooth omnidirectional rolling | Dual-wheel casters move freely on hard floors and low-pile carpet without marking | |
| Integrated ergonomic lumbar support | Contoured lower back panel flexes with movement to maintain spinal alignment | |
| Waterfall seat edge design | Curved front seat pan reduces pressure on back of thighs during long sitting | |
| Synchro-tilt action | Seat and back tilt in 1:2.5 ratio to keep feet flat on floor during recline | |
| Tilt backward angle | 15 degrees | |
| 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, supports all-day seated desk work | |
|---|---|---|
| Home office study spaces | Compact footprint fits small home desk setups, quiet casters avoid household noise | |
| Meeting and conference rooms | Unified black design matches professional room aesthetics, swivel function supports group discussion | |
| Cubicle and private office setups | Adjustable armrests and lumbar support adapt to diverse user heights and preferences | |
| Co-working shared spaces | Neutral black finish and robust mechanisms suit high-turnover shared work environments | |
| Hot-desking flexible work areas | Caster mobility allows quick repositioning between workstations, adjustable fit for rotating users | |
| 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, dimensional and structural safety requirements | |
|---|---|---|
| EN 1335-2:2018 | Office work chairs: safety requirements for strength, durability and stability | |
| EN 1335-3:2009 | Office work chairs: test methods for verifying structural and mechanical performance | |
| EN 1022:2018 | Domestic and contract seating: determination of stability for seating products |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Standard for office chairs: general purpose office chairs, strength and durability requirements |
|---|
Standards applicable to China-market projects
| GB/T 3326-2016 | Office furniture: chair dimensional stability and sizing requirements for seating work surfaces | |
|---|---|---|
| GB 28007-2011 | Safety requirements for office swivel chairs: structural stability and load capacity | |
| GB/T 35607-2017 | Upholstered furniture: evaluation of performance for office chair seat and back foam | |
| GB 18584-2001 | Indoor decorating and refurbishing materials: limit of harmful substances in wooden furniture |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Office furniture: chair dimensional stability and sizing requirements for seating work surfaces; 2. GB 28007-2011: Safety requirements for office swivel chairs: structural stability and load capacity; 3. GB/T 35607-2017: Upholstered furniture: evaluation of performance for office chair seat and back foam; 4. GB 18584-2001: Indoor decorating and refurbishing materials: limit of harmful substances in wooden furniture; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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