| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall unit dimensions (3-seat row) | 1740 x 730 x 1020 mm | |
|---|---|---|
| Seat center distance per position | 580 mm | |
| Seat height from finished floor | 460 mm | |
| Seat usable depth | 460 mm | |
| Inner seat width per position | 490 mm | |
| Armrest top height from floor | 620 mm | |
| Armrest cross section | 80 x 29 mm | |
| Backrest total height from seat pan | 560 mm | |
| Recommended minimum row spacing | 900 mm | |
| Support leg base footprint per leg | 120 x 120 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
| Per-seat net weight | 23 kg | |
|---|---|---|
| Rated static load per seat | 150 kg | |
| Seat impact resistance | Pass 25 kg sandbag 300 mm drop | |
| Folding mechanism cycle life | 5000 cycles | |
| Full unit cyclic loading durability | 100000 cycles at 600 N | |
| Recommended maximum user weight per seat | 150 kg | |
| Total unit static load rating | 450 kg | |
| Warranty period for structural components | 5 years | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Armrest and outer side panels | Solid beech/oak wood, clear lacquer finish | |
|---|---|---|
| Upholstery fabric | Green vertical ribbed woven linen-blend fabric, abrasion-resistant | |
| Seat cushion foam | Cold-cure molded PU foam, 65 kg/m³ density, 110 mm thickness | |
| Backrest cushion foam | Cold-cure molded PU foam, 40 kg/m³ density, 130 mm thickness | |
| Seat and back inner support panels | 11 mm multi-layer birch plywood, formaldehyde emission grade E1 | |
| Floor mounting feet | Gray powder-coated cast aluminum, ribbed non-slip base cap | |
| Hidden internal support frame | 1.8 mm thick cold-rolled steel, phosphated anti-rust coating | |
| Seat return mechanism | Dual stainless steel tension springs, self-lubricating pivot bushings | |
| Side panel substrate | 3 mm MDF board, fully wrapped in matching green fabric | |
| Fastening hardware | M12 expansion anchor bolts with plastic dust covers | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame |
Adjustment / rotation / tilt / mobility / storage features
| Seat operation | Gravity-assisted automatic tip-up return with dual-spring mechanism | |
|---|---|---|
| Floor mounting | Permanent fixed installation to concrete raised or flat floors | |
| Row configuration | Ganged linear connected seating with shared structural rails | |
| Anti-pinch protection | Movable seat gaps designed to 4 mm maximum at pivot points | |
| Seat locking | Bidirectional lock holds seat in open and closed positions | |
| Upholstery performance | Fabric dry rub color fastness grade 4, flame retardant to public venue standards | |
| Writing tablet compatibility | Optional rear-mount ABS writing tablet available for installation | |
| Egress compliance | Tip-up seat design provides minimum 300 mm clear row passage when closed | |
| 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
| Indoor auditoriums and performing arts theaters | Provides contoured support for 2+ hour seated event viewing | |
|---|---|---|
| Corporate conference and lecture halls | Supports formal presentations, training and large meeting events | |
| Government and institutional assembly halls | Meets durable fixed seating requirements for high-traffic public use | |
| School and university lecture theaters | Suits daily high-frequency student use with wear-resistant surfaces | |
| Cinema and screening rooms | Tip-up seat design enables efficient egress between screening times | |
| Courtrooms and public hearing chambers | Formal wood trim aesthetic matches official government interiors | |
| 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 | Audience seating mechanical and durability requirements | |
|---|---|---|
| EN 1021-1:2014 | Upholstered furniture ignition resistance (smoldering cigarette) | |
| EN 13761:2002 | Public seating dimensions and safety requirements |
Standards applicable to China-market projects
| GB/T 1931-2009 | Wood moisture content test method | |
|---|---|---|
| GB 20286-2006 | Flame retardant requirements for public place furnishings | |
| GB/T 4893.8-2013 | Wood furniture coating abrasion resistance test |
This product must meet the following technical requirements: 1. GB/T 1931-2009: Wood moisture content test method; 2. GB 20286-2006: Flame retardant requirements for public place furnishings; 3. GB/T 4893.8-2013: Wood furniture coating abrasion resistance test; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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