| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (large two-tone variant) | 400 x 400 x 450 mm | |
|---|---|---|
| Round seat diameter | 400 mm | |
| Fixed seat height from floor | 450 mm | |
| Backrest height above seat surface | 120 mm | |
| Backrest wrap arc length | 630 mm | |
| Carry loop inner opening size | 30 x 20 mm | |
| Seat padding thickness | 80 mm | |
| Base contact diameter | 380 mm | |
| Contrast piping width | 3 mm | |
| Upholstery wall thickness around cylinder | 20 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
| Product net weight (large variant) | 5 kg | |
|---|---|---|
| Recommended static user load capacity | 150 kg | |
| Seat foam density | 35 kg/m³ | |
| Foam rebound rate | 60% | |
| Upholstery abrasion resistance | 30000 cycles | |
| Static stability floor load distribution | 100% evenly spread | |
| Seam stitching pull strength | 80 N | |
| Available color option count | 4 | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and body outer upholstery | 0.8mm thick matte PU faux leather, waterproof and easy-wipe | |
|---|---|---|
| Two-tone variant back panel upholstery | 0.8mm thick black PU faux leather with matching edge piping | |
| Internal structural frame | 15mm thick medium-density fiberboard, cylindrical support core | |
| Seat and back cushion filling | High-density polyurethane foam, no sharp internal edges | |
| Edge piping trim | 1mm diameter PU-wrapped cord, aligned to all upholstery seams | |
| Integrated carry loop | Same PU material as upholstery, stitched to top of back panel | |
| Base bottom contact layer | 2mm thick non-slip non-woven fabric, floor-protecting | |
| Stitching thread | High-tenacity polyester thread, matched to upholstery color | |
| 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
| Stationary fixed seating | No swivel or height adjustment, direct full-contact floor placement | |
|---|---|---|
| Integrated carry handle | Top-mounted fabric loop allows single-handed lifting and repositioning | |
| Low curved back support | Partial rear wrap back provides light lumbar support during vanity use | |
| Stain-resistant easy-clean surface | Smooth PU upholstery wipes clean with damp cloth for daily maintenance | |
| Floor protection | Soft fabric base prevents scratches on hard wood, tile, or vinyl flooring | |
| Stackable storage compatibility | Cylindrical form allows nesting for compact storage when not in use | |
| Fixed non-tipping structure | Wide low center of gravity prevents tipping during normal seated use | |
| 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
| Bedroom vanity area | Sized for seated use at standard 750mm high dressing tables | |
|---|---|---|
| Entryway shoe changing zone | Compact footprint fits narrow entry spaces for temporary seating | |
| Living room supplemental accent seating | Two-tone finish coordinates with modern minimalist soft furnishing schemes | |
| Small apartment multi-use flexible seating | Lightweight portable design supports occasional use in limited space | |
| Walk-in closet dressing area | Compact size fits narrow closet aisles for dressing assistance | |
| Children’s bedroom auxiliary seating | Rounded soft edges eliminate sharp corner safety risks for home use | |
| 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 12520:2015 | Furniture – Seating – Strength, durability and safety requirements for domestic seating | |
|---|---|---|
| EN 1021-1:2014 | Upholstered furniture flammability – Ignition by smouldering cigarette |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to internal frame quality | |
|---|---|---|
| GB 18584-2001 | Limit of harmful substances in wooden furniture, applicable to formaldehyde emission | |
| GB/T 16799-2008 | Technical specification for polyurethane artificial leather, applicable to upholstery material |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to internal frame quality; 2. GB 18584-2001: Limit of harmful substances in wooden furniture, applicable to formaldehyde emission; 3. GB/T 16799-2008: Technical specification for polyurethane artificial leather, applicable to upholstery material; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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