| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall outer diameter × total height | 2400 × 800 mm | |
|---|---|---|
| Central open void diameter | 800 mm | |
| Seat height above finished floor | 450 mm | |
| Raised backrest segment height | 350 mm above seat surface | |
| Per-seat usable seating width | 600 mm | |
| Seat cushion depth | 650 mm | |
| Nesting portable side table diameter | 500 mm | |
| Seat cushion thickness | 150 mm | |
| Backrest padding thickness | 100 mm | |
| Integrated armrest segment height | 200 mm above seat surface | |
| Finished Seat Cushion Thickness | 90 mm | |
| Lumbar Support Zone Height | 240 mm | |
| Clear Width Between Armrests | 540 mm |
Net weight / load capacity / users / durability
| Per-seat static load capacity | 300 kg | |
|---|---|---|
| Recommended total user capacity | 6 adults | |
| Seat foam density | 45 kg/m³ | |
| Foam rebound rate | 85% | |
| Total unit net weight | 280 kg | |
| Upholstery abrasion resistance (Martindale) | 50000 cycles | |
| Seam stitch density | 12 stitches per inch | |
| Standard warranty period | 2 years | |
| 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 back upholstery | Light neutral textured performance polyester fabric | |
|---|---|---|
| Seat cushion core | High-density polyurethane foam | |
| Backrest padding core | Medium-density polyurethane foam | |
| Internal support frame | 1.5mm thick powder-coated steel tube + kiln-dried hardwood composite | |
| Module connecting hardware | Zinc-plated steel interlocking connectors | |
| Base support layer | Non-slip rubberized floor glides | |
| Nesting side table top | Light oak veneer over MDF core | |
| Central void accent panel | Dark upholstered fabric matching seating textile | |
| 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 configuration flexibility | 6 interlocking curved segments connect to form fixed 360° annular layout | |
|---|---|---|
| Seating orientation support | 360° perimeter outward-facing seating for casual group collaboration | |
| Integrated side table accommodation | Notched gaps between seat segments accept nesting round portable side tables | |
| Floor protection | Full perimeter non-slip glides prevent floor scratching and unintended movement | |
| Reconfiguration capability | Segments can be disconnected to form curved linear or semicircular seating arrangements | |
| Upholstery maintenance | Removable fabric covers allow spot cleaning or replacement for high-traffic wear | |
| Back support design | Low-profile radiating back segments provide lumbar support without blocking sightlines | |
| Weight distribution | Wide continuous base eliminates tipping risk during normal multi-user seating | |
| 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 breakout spaces | Supports 6person casual collaborative work and informal meetings | |
|---|---|---|
| Corporate lobby waiting areas | Provides inviting multi-seat waiting space for visitors and guests | |
| University campus common areas | Accommodates student group study and social gathering in shared spaces | |
| Co-working open spaces | Flexible modular design supports dynamic team interactions and casual work sessions | |
| Hotel lobby lounge zones | Creates a sculptural focal point while providing functional guest seating | |
| Public library reading zones | Provides relaxed seating for quiet individual reading or small group discussion | |
| 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 13759:2012 | Domestic and contract furniture seating mechanical safety requirements for public use | |
|---|---|---|
| EN 1022:2018 | Seating furniture stability testing standard applicable to multi-user modular units |
US and Canada office-furniture standards
| ANSI/BIFMA X5.4-2020 | Lounge and public seating safety and performance standard for commercial office installations | |
|---|---|---|
| ANSI/BIFMA e3-2019 | Furniture sustainability standard for material emissions and product durability verification |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to integrated wood structural components | |
|---|---|---|
| GB 18580-2017 | Formaldehyde emission limits for wood-based panels, required for all composite panel components | |
| GB/T 1952.1-2012 | Soft furniture sofa safety and performance standards, applicable to upholstered seating structure |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to integrated wood structural components; 2. GB 18580-2017: Formaldehyde emission limits for wood-based panels, required for all composite panel components; 3. GB/T 1952.1-2012: Soft furniture sofa safety and performance standards, applicable to upholstered seating structure; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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