| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall chair dimensions | 840 x 910 x 1010 mm | |
|---|---|---|
| Seat height above floor | 445 mm | |
| Seat usable depth | 520 mm | |
| Backrest height above seat | 565 mm | |
| Integrated armrest height above seat | 180 mm | |
| Chair four-star base diameter | 800 mm | |
| Overall ottoman dimensions | 800 x 620 x 430 mm | |
| Ottoman seat height above floor | 430 mm | |
| Ottoman four-star base diameter | 560 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
| Set total net weight | 38 kg | |
|---|---|---|
| Chair recommended static load capacity | 130 kg | |
| Cushion foam density | 50 kg/m³ | |
| Foam rebound rate | 60% | |
| Seam stitch pitch | 30 mm | |
| 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 | |
| Five-star Base Static Load Reference | Acceptance target ≥120 kg; chair reference load 150 kg | |
| Caster Rolling Durability Reference | Acceptance target 30000 cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Outer chair shell upholstery | Top-grain brown leather, 1.2mm thickness | |
|---|---|---|
| Seat and back cushion upholstery | Light gray woven chenille fabric, 350g/m² weight | |
| Inner support frame | 1.5mm thick steel tube + kiln-dried solid wood structure | |
| Cushion filling | High-resilience polyurethane foam with 20mm top dacron layer | |
| Chair and ottoman bases | Brushed stainless steel four-star pedestal, 2mm wall thickness | |
| Swivel mechanism | Steel ball-bearing rotation hub, zinc-plated corrosion-resistant finish | |
| Shell edge trim | Matching leather welt, precision stitched along all shell seams | |
| Base floor glides | Non-marking nylon floor protectors, 8mm thickness | |
| 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 movement | 360° smooth rotation around central vertical axis | |
|---|---|---|
| Backrest recline angle | 115° fixed relaxed lounging angle | |
| Cushion installation | Removable seat and back cushions secured with hook-and-loop fasteners | |
| Ottoman function | Paired ergonomic leg rest aligned to chair seat height for extended leg support | |
| Base stability | Wide four-prong foot layout eliminates tip risk during normal swivel and leaning | |
| Assembly requirement | Tooled attachment of bases to chair and ottoman frames with included hardware | |
| 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 for primary seating in modern minimalist or light luxury living spaces | |
|---|---|---|
| Office reception and lounge areas | Appropriate for executive waiting zones and casual meeting lounge spaces | |
| Hotel lobby and guest room use | Suited for boutique hotel public areas and premium suite lounge configurations | |
| Private study and reading nooks | Relaxed reclined angle supports extended reading and media viewing | |
| Recommended pairing configuration | Position chair and ottoman 200 mm apart for unobstructed leg extension | |
| 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 | Strength, durability and safety requirements for domestic seating furniture | |
|---|---|---|
| EN 1022:2019 | Stability testing method applicable to swivel seating units |
US and Canada office-furniture standards
| North America procurement and testing reference | Recommended references: ANSI/BIFMA X5.4 |
|---|
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements applicable to wooden/metal frame household furniture | |
|---|---|---|
| GB 20400-2006 | Leather upholstery material limit of harmful substances applicable to leather shell components | |
| GB 18580-2017 | Formaldehyde emission limits applicable to wood-based frame and cushion components |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements applicable to wooden/metal frame household furniture; 2. GB 20400-2006: Leather upholstery material limit of harmful substances applicable to leather shell components; 3. GB 18580-2017: Formaldehyde emission limits applicable to wood-based frame and cushion components; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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