| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall outer diameter | 2400 mm | |
|---|---|---|
| Inner raised ring diameter | 1200 mm | |
| Outer lower tier seat depth | 600 mm | |
| Inner raised tier seat depth | 400 mm | |
| Outer tier seat height | 450 mm | |
| Inner tier seat height | 580 mm | |
| Individual curved segment length | 900 mm | |
| Seat padding thickness | 120 mm | |
| Metal glide foot height | 20 mm | |
| Total seating positions | 12 | |
| 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
| Per-seat static load rating | 150 kg | |
|---|---|---|
| Total unit net weight | 210 kg | |
| Foam density | 45 kg/m³ | |
| Foam rebound rate | 60% | |
| Upholstery abrasion resistance | 50000 Martindale cycles | |
| Frame static load capacity | 1800 kg | |
| Seam stitch pitch | 8 stitches per inch | |
| 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
| Internal frame | 1.5 mm thick steel tube frame | |
|---|---|---|
| Outer tier upholstery | Taupe commercial-grade polyester fabric | |
| Inner tier upholstery | Beige commercial-grade polyester fabric | |
| Seat padding | High-density polyurethane foam over 10 mm plywood base | |
| Support feet | Chrome-plated steel non-marking glide feet | |
| Modular connectors | Powder-coated steel interlocking brackets | |
| Seam construction | Reinforced polyester thread stitching | |
| Fabric surface treatment | Stain-repellent and anti-fading coating | |
| 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
| Modular assembly | Curved segments connect via interlocking brackets to form circular layout | |
|---|---|---|
| Omnidirectional seating | Backless design supports seating facing inward, outward, or sideways around the ring | |
| Dual-tier configuration | Raised inner ring provides elevated seating separate from outer ring | |
| Floor protection | Non-marking glide feet prevent scratches on hard flooring surfaces | |
| Reconfigurable layout | Segments can be rearranged into curved or partial circular layouts | |
| Removable upholstery covers | Covers can be unzipped for cleaning or replacement | |
| Level adjustment | Glide feet include 5 mm height adjustment for uneven floors | |
| 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
| Office lounge areas | Provides flexible casual seating for employee break and collaboration spaces | |
|---|---|---|
| Public waiting zones | Suitable for lobbies, reception areas, and transit waiting spaces | |
| Hotel public spaces | Designed for hotel lobbies, event spaces, and guest common areas | |
| Education common areas | Fits university student lounges, library relaxation zones, and campus hubs | |
| Retail atriums | Provides high-capacity seating for shopping mall public gathering areas | |
| Healthcare waiting areas | Durable, easy-to-clean seating suitable for clinic and hospital public zones | |
| 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 13761:2002 | Test methods for strength and durability of public seating furniture | |
|---|---|---|
| EN 1021-1:2014 | Upholstered furniture flammability - cigarette ignition resistance |
US and Canada office-furniture standards
| ANSI/BIFMA X5.4-2022 | Safety and performance standard for lounge and public seating | |
|---|---|---|
| ANSI/BIFMA e3-2019 | Furniture sustainability standard for material emissions and durability |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to internal structural components | |
|---|---|---|
| GB 20400-2006 | Limit of harmful substances in leather and fabric upholstery furniture | |
| GB/T 39061-2020 | Safety, strength and durability requirements for public seating |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to internal structural components; 2. GB 20400-2006: Limit of harmful substances in leather and fabric upholstery furniture; 3. GB/T 39061-2020: Safety, strength and durability requirements for public seating; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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