| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 838 x 775 x 838 mm | |
|---|---|---|
| Seat height from floor | 457 mm | |
| Seat width | 589 mm | |
| Seat depth | 610 mm | |
| Backrest height above seat | 381 mm | |
| Four-star base leg span diameter | 680 mm | |
| Cushion thickness (seat) | 127 mm | |
| Outer shell wall thickness | 12 mm | |
| Clearance under seat to floor | 152 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 static load capacity | 136 kg | |
|---|---|---|
| Net product weight | 46 kg | |
| Seat cushion foam density | 35 kg/m³ | |
| Seat foam rebound rate | 48% | |
| Upholstery abrasion resistance | 100000 double rubs | |
| Swivel mechanism cycle life | 30000 rotations | |
| Seam stitch pitch | 8 stitches per 25mm | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ | |
| Upholstery Thickness / Abrasion Reference | 1.4 mm / 50000 cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Outer structural shell | Curved bentwood plywood with dark walnut-toned finish | |
|---|---|---|
| Seat and back cushion core | High-density polyurethane foam with fiber wrap | |
| Upholstery cover | Light beige faux leather with channel-quilted stitching | |
| Seat support system | Sinuous no-sag steel springs | |
| Swivel base structure | Powder-coated matte black carbon steel four-star spider frame | |
| Central swivel mechanism | Ball-bearing steel rotating plate | |
| Base foot glides | Non-marking nylon floor protectors | |
| Shell edge trim | Narrow black binding along upholstery and shell seam | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Gas-lift Engineering Specification | Recommended Class 4; outer tube 50 mm; stroke 100 mm | |
| Tilt Mechanism Plate Thickness | 2.5 mm cold-rolled steel |
Adjustment / rotation / tilt / mobility / storage features
| Swivel motion | 360-degree free rotation on central ball bearing mechanism | |
|---|---|---|
| Seating posture | Fixed 105-degree reclined back angle for relaxed lounging | |
| Floor protection | Integrated nylon glides prevent floor scuffing on hard surfaces | |
| Cushion construction | Segmented channel-quilted panels prevent fill shift during use | |
| Structural support | Curved wrap-around shell provides lateral back and side support | |
| Assembly requirement | Minimal base attachment to shell required for installation | |
| Mobility feature | Stationary non-rocking, non-tilting fixed-position seating base | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg | |
| Height Adjustment Stroke | 100 mm continuous travel | |
| 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
| Residential living room placement | Suitable as standalone accent seating adjacent to sofas or coffee tables | |
|---|---|---|
| Office lounge and waiting area use | Appropriate for reception breakout zones and informal meeting spaces | |
| Bedroom reading nook installation | Ideal for compact relaxation corners with plush, supportive cushioning | |
| Hotel lobby and guest suite furnishing | Fits contemporary hospitality interiors with neutral tone and curved silhouette | |
| Pairing recommendation | Coordinates with round marble or wood coffee tables and low-pile area rugs | |
| Floor surface compatibility | Safe for hardwood, tile, and low-pile carpeted floors with integrated glides | |
| 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
US and Canada office-furniture standards
| North America procurement and testing reference | Recommended references: ANSI/BIFMA X5.4 |
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Standards applicable to China-market projects
This product must meet the following technical requirements: 1. Technical standards and test reports must be supplied during tender or purchase confirmation; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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