| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 680 x 700 x 1280 mm | |
|---|---|---|
| Seat width | 520 mm | |
| Seat depth | 500 mm | |
| Seat height range | 520 mm | |
| Backrest height | 760 mm | |
| Backrest width | 510 mm | |
| Armrest height from seat | 210 mm | |
| Armrest overall width | 680 mm | |
| Five-star base diameter | 700 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
| Net weight range | 22 kg | |
|---|---|---|
| Recommended static load rating | 150 kg | |
| Recommended dynamic load rating | 110 kg | |
| Gas lift travel | 100 mm | |
| Tilt mechanism recline angle | 18 degrees | |
| Caster rolling durability | 100000 cycles | |
| Upholstery abrasion resistance reference | 200000 cycles | |
| Stitch pitch | 6 mm | |
| Warranty period reference | 5 years | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Black top-grain leather (visible face) with matching PVC sides and back | |
|---|---|---|
| Seat cushion fill | High-density polyurethane foam, molded or cut-and-glued construction | |
| Backrest fill | Layered polyurethane foam with lumbar contour padding | |
| Inner back frame | Plywood or bent wood panel with steel reinforcement brackets | |
| Armrest structure | Polished die-cast aluminum outer frame with leather-padded top | |
| Tilt mechanism | Steel plate synchronous or knee-tilt mechanism with black powder-coated housing | |
| Gas lift cylinder | Chrome-plated steel gas spring, Class 3 commercial grade | |
| Five-star base | Polished die-cast aluminum 5-leg base with tapered leg profile | |
| Casters | Black polyurethane wheels with steel axle and bracket, 5 pieces total | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Five-star Base Material Thickness | Metal base wall 3.5 mm; diameter 700 mm |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic lift controlled by right-side lever, providing 80 mm vertical travel between 440 mm and 520 mm seat height | |
|---|---|---|
| Backrest tilt and lock | Knee-tilt or synchronous mechanism with multiple-position lock, maximum 18 degrees recline from upright | |
| 360-degree swivel | Full continuous rotation around central gas lift column for easy desk access | |
| Mobility | Five dual-wheel polyurethane casters for smooth rolling on hard floors and low-pile carpet | |
| Fixed ergonomic armrests | Padded armrests set at fixed 210 mm height above seat for forearm support | |
| Lumbar contour support | Built-in sculpted lumbar pad integrated into backrest foam shape | |
| Tilt tension control | Rotary knob under seat adjusts recline resistance to match user body weight | |
| Recline Angle / Lock Reference | 125° with 3 suggested 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
| Packing configuration | 1 chair per carton, knock-down disassembled with backrest, base, gas lift, casters, and armrests packed flat | |
|---|---|---|
| Carton dimensions | 820 x 620 x 480 mm | |
| Gross weight per carton | 26 kg | |
| Volume per carton (CBM) | 0.244 m³ | |
| Assembly time per unit | 30 minutes | |
| 20 ft container loading quantity | 180 units | |
| 40 ft HC container loading quantity | 420 units | |
| Reference Package Count | 1 set / 2 cartons | |
| Reference Assembly Time | 40 minutes per set | |
| Reference Carton Dimensions | 850× 420× 720 mm |
Recommended spaces / users / usage modes
| Executive and C-suite offices | Suitable for private corner offices and executive workstations, providing premium leather finish and ergonomic support for 8+ hour daily use | |
|---|---|---|
| Conference and boardrooms | Appropriate for head-of-table and permanent conference seating positions, with swivel and tilt for extended meeting participation | |
| Managerial workstations | Fits standard 1800 mm wide office desks with 750 mm working height, seat height range aligns with typical desk heights | |
| Reception and visitor areas | Can be used as premium guest seating in front office and lounge zones to match executive office furniture sets | |
| Commercial office buildings | Suitable for Class A office buildings and co-working premium suites requiring durable commercial-grade construction | |
| 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 chair - Part 1: Dimensions - Determination of dimensions | |
|---|---|---|
| EN 1335-2:2019 | Office furniture - Office work chair - Part 2: Safety requirements | |
| EN 1335-3:2019 | Office furniture - Office work chair - Part 3: Test methods for safety and stability |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | General-Purpose Office Chairs - Tests | |
|---|---|---|
| BIFMA G1-2021 | Ergonomic Guideline for Office Seating |
Standards applicable to China-market projects
| GB/T 3326-2016 | Furniture - Tables, chairs and stools - Classification and main dimensions | |
|---|---|---|
| GB 20231-2006 | Safety of furniture - Upholstered furniture - Flammability requirements for residential and non-residential seating |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Furniture - Tables, chairs and stools - Classification and main dimensions; 2. GB 20231-2006: Safety of furniture - Upholstered furniture - Flammability requirements for residential and non-residential seating; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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