| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 640 x 640 x 1120 mm | |
|---|---|---|
| Seat width | 510 mm | |
| Seat depth | 510 mm | |
| Maximum seat height | 560 mm | |
| Minimum seat height | 430 mm | |
| Backrest height | 720 mm | |
| 5-star base diameter | 690 mm | |
| Caster wheel diameter | 60 mm | |
| Seat cushion thickness | 80 mm | |
| Backrest cushion thickness | 60 mm | |
| Bentwood shell thickness | 12 mm | |
| Gas lift cylinder 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
| Recommended maximum user weight | 159 kg | |
|---|---|---|
| Net product weight | 20 kg | |
| Seat foam density | 45 kg/m³ | |
| Foam rebound rate | 60% | |
| Tilt mechanism static load rating | 181 kg | |
| 5-star base static load rating | 1134 kg | |
| Upholstery abrasion resistance | 50000 Martindale cycles | |
| Seam stitch pitch | 8 stitches per inch | |
| Standard warranty period | 3 years | |
| Available color options | 4 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | 1.2mm thick PU faux leather | |
|---|---|---|
| Side and outer back shell | Walnut veneered bent plywood | |
| Seat cushion core | High-density polyurethane foam | |
| Backrest cushion core | High-density polyurethane foam | |
| 5-star base | Polished die-cast aluminum | |
| Tilt and height mechanism | Powder-coated steel | |
| Gas lift cylinder | Chrome-plated steel | |
| Caster wheels | Polyurethane tread with nylon housing | |
| Internal support frame | 1.5mm thick steel plate | |
| Edge trim | Matching PU leather welt | |
| 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
| Pneumatic seat height adjustment | 130 mm vertical travel via under-seat side lever | |
|---|---|---|
| 360-degree swivel rotation | Full 360° rotation around vertical gas lift axis | |
| Backrest tilt function | 12° backward recline with adjustable tension | |
| Rolling mobility | 5 dual-wheel casters for smooth multi-directional movement | |
| Integrated armless design | No protruding external armrests | |
| Contoured ergonomic support | Curved seat pan waterfall edge and lumbar-shaped backrest | |
| Tilt upright lock | Single-position lock in fully upright posture | |
| Scratch-resistant wood finish | UV-cured clear lacquer on walnut bentwood shell | |
| 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
| Carton count per unit | 1 | |
|---|---|---|
| Carton dimensions | 760 x 660 x 610 mm | |
| Gross weight per carton | 23 kg | |
| Carton volume | 0.31 CBM | |
| Required assembly time | 15 minutes | |
| Assembly tools included | 1 Allen key | |
| 20ft GP container loading quantity | 87 units | |
| 40ft HQ container loading quantity | 215 units | |
| Inner packaging material | 5-layer corrugated carton, EPS foam corner protection, PE bag wrap | |
| Reference Package Count | 1 set / 2 cartons |
Recommended spaces / users / usage modes
| Executive private office | Suitable for management and executive workspaces; high-back design provides upper back support for long work sessions, modern walnut and camel finish complements professional office interiors | |
|---|---|---|
| Conference and meeting rooms | Slim armless profile allows flexible seating around conference tables; 360-degree swivel and rolling mobility support easy interaction between meeting participants, polished finish creates a polished professional aesthetic | |
| Home office and study spaces | Mid-century modern design coordinates with residential decor; compact footprint fits in smaller home work areas, adjustable height works with standard 760 mm tall home office desks | |
| Hotel business centers and coworking spaces | Durable commercial construction withstands high-traffic shared use; easy to clean PU leather upholstery reduces maintenance, classic neutral colorway matches varied interior design schemes | |
| Boardroom and client reception areas | Sleek contemporary silhouette creates a premium impression for visiting clients; comfortable padded support for extended meetings, armless design allows easy access and flexible seating arrangements | |
| Open plan workstations | Space-saving armless design tucks fully under desks to maximize walkway clearance in open office layouts; quiet non-marking casters minimize noise in shared work environments | |
| Executive video conferencing setups | High back provides upper torso support during long virtual meetings; contoured seat maintains upright posture for on-camera professional appearance | |
| Consulting and professional service offices | Professional aesthetic suitable for law, finance and design firms; durable construction supports all-day use by staff and visiting clients, neutral finish complements wood office casegoods |
EU Market Access Requirements* EN Standards
| EN 1335-1:2000 | Applicable standards and test results require confirmation | |
|---|---|---|
| EN 1335-2:2009 | Office furniture - Office work chairs - Part 2: Safety requirements | |
| EN 1335-3:2009 | Office furniture - Office work chairs - Part 3: Test methods |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Office Chairs - Tests | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Big and Tall Office Chairs |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture | |
|---|---|---|
| GB/T 3325-2017 | General technical requirements for metal furniture | |
| GB 18584-2001 | Applicable standards and test results require confirmation | |
| GB/T 29646-2013 | Office swivel chairs |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture; 2. GB/T 3325-2017: General technical requirements for metal furniture; 3. GB 18584-2001: Applicable standards and test results require confirmation; 4. GB/T 29646-2013: Office swivel chairs; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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