| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall per-seat dimensions (closed) | 600 x 770 x 1000 mm | |
|---|---|---|
| Seat center-to-center spacing | 610 mm | |
| Seat height from finished floor | 450 mm | |
| Usable seat depth | 470 mm | |
| Seat cushion usable width | 480 mm | |
| Backrest total height above seat | 550 mm | |
| Solid wood armrest thickness | 30 mm | |
| Pedestal base circular plate diameter | 320 mm | |
| Folded tip-up seat row clearance depth | 500 mm | |
| Molded plywood seat/back core thickness | 13 mm | |
| Backrest sightline pitch angle | 24 degrees | |
| 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 net weight | 26 kg | |
|---|---|---|
| Recommended static user load per seat | 150 kg | |
| Seat cushion foam density | 65 kg/m³ | |
| Backrest foam density | 57 kg/m³ | |
| Seat cushion foam thickness | 76 mm | |
| Fabric upholstery abrasion resistance | 50000 cycles | |
| Seat return mechanism cycle life | 100000 operations | |
| Pedestal floor mount static load capacity | 500 kg | |
| 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 contact upholstery | Dark abrasion-resistant polyester fabric | |
|---|---|---|
| Seat cushion core padding | Cold-molded high-resilience polyurethane foam | |
| Backrest core padding | Cold-cure polyurethane foam | |
| Seat and back structural cores | 13mm multi-layer molded plywood | |
| Shared armrest dividers and trim | Clear-varnished solid beech hardwood | |
| Internal support frame | 16-gauge powder-coated steel tubing | |
| Pedestal support and floor base | Die-cast aluminum with matte black powder coat | |
| Seat pivot and return hardware | Zinc-plated steel axle with damped double-spring return | |
| Upholstery seam construction | Reinforced stitched seams with 8mm stitch pitch | |
| 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 |
Adjustment / rotation / tilt / mobility / storage features
| Seat tip-up operation | Gravity-assisted damped automatic return to upright position | |
|---|---|---|
| Floor mounting system | Concealed bolted circular pedestal plate fixed to finished floor/riser | |
| Ganged row connection | Interlocking steel brackets between adjacent seat pedestals | |
| Armrest divider function | Rigid shared wood divider separating adjacent seats | |
| Seat pivot movement | Full-width 16mm steel axle rotating on self-lubricating bushings | |
| Return damping function | Integrated hydraulic damper eliminates impact noise during seat return | |
| Optional accessory mounting | Pre-drilled points for row number plates, writing tablets, or aisle end panels | |
| 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
| Lecture hall installation | Permanent fixed row mounting for university and training room audience seating | |
|---|---|---|
| Auditorium and theater application | Ganged row layout for school and municipal performance venues | |
| Conference hall use | Formal fixed seating for government and corporate assembly spaces | |
| Multi-purpose hall configuration | Tip-up seats provide clear aisle access for flexible event setups | |
| Public institutional seating | Durable construction suitable for high-traffic public buildings | |
| 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 12727:2000 | Furniture, ranked seating for public areas, strength and durability requirements | |
|---|---|---|
| EN 1021-1:2014 | Furniture upholstery fire resistance, cigarette ignition test for seating | |
| EN 1021-2:2014 | Furniture upholstery fire resistance, match flame ignition test for seating |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to wood trim components | |
|---|---|---|
| GB/T 35607-2017 | Furniture for public venues, general safety requirements for fixed seating | |
| GB 20286-2006 | Fire retardant requirements for public venue furniture materials, optional for specification |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to wood trim components; 2. GB/T 35607-2017: Furniture for public venues, general safety requirements for fixed seating; 3. GB 20286-2006: Fire retardant requirements for public venue furniture materials, optional for specification; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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