| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (W x D x H) | 620 x 760 x 980 mm | |
|---|---|---|
| Center-to-center seat width for ganged installation | 590 mm | |
| Seat height from finished floor to seat cushion top | 450 mm | |
| Seat cushion usable depth | 500 mm | |
| Seat cushion usable width between wood stanchions | 500 mm | |
| Backrest total height from seat surface to top edge | 530 mm | |
| Armrest height from floor to padded arm surface | 650 mm | |
| Armrest top surface width | 80 mm | |
| Under-seat knee clearance height | 280 mm | |
| Floor mounting footprint per unit | 520 x 680 mm | |
| Wood side stanchion thickness | 40 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
| Net weight per fully assembled unit | 19 kg | |
|---|---|---|
| Recommended static user load capacity | 180 kg | |
| Seat cushion foam density | 65 kg/m³ | |
| Backrest cushion foam density | 55 kg/m³ | |
| Seat cushion foam thickness | 150 mm | |
| Backrest foam thickness | 140 mm | |
| Upholstery abrasion resistance rating | 50000 double rubs | |
| Seat return mechanism cycle life | 100000 operations | |
| Structural warranty period | 5 years | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Brown woven commercial-grade fabric, abrasion-resistant, anti-static | |
|---|---|---|
| Seat cushion core | High-density cold-cured polyurethane foam, CFC-free | |
| Backrest cushion core | High resilience cold-molded polyurethane foam, contoured for lumbar support | |
| Armrests and vertical side stanchions | Solid hardwood with mahogany lacquer finish, scratch-resistant clear coat | |
| Back edge vertical trim | Solid mahogany-finish hardwood, integrated with side stanchions for structural support | |
| Internal support frame | 2.5 mm thick powder-coated cold-rolled steel, rust-resistant | |
| Floor mounting brackets | Heavy-gauge steel with anti-corrosion plating, pre-drilled for anchor bolts | |
| Upholstery stitching | High-strength polyester thread, 8 stitches per inch seam pitch | |
| Under-seat structure panels | 15 mm thick multilayer plywood with wood veneer finish | |
| 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 operation | Tip-up seat with silent spring-damper automatic return, no slam noise | |
|---|---|---|
| Mounting system | Permanent floor-mounted fixation with 4 anchor bolts per unit, designed for ganged row installation | |
| Seat return mechanism | Double torsion spring with hydraulic damper, maintenance-free operation | |
| Ganging connection | Interlocking steel brackets between adjacent units, aligned for uniform row spacing | |
| Surface maintenance | Stain-resistant fabric and lacquered wood surfaces, wipe-clean with mild detergent | |
| Optional add-on compatibility | Pre-drilled mounting points for retractable writing tablets, cup holders, and row/seat number plates | |
| Posture support | Contoured upright high back with built-in lumbar curve, no recline function | |
| Acoustic performance | Upholstered surfaces and solid wood panels provide sound absorption to reduce echo in large assembly spaces | |
| 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
| Auditorium and theater venues | Fixed row installation for permanent public performance and event seating | |
|---|---|---|
| Conference and lecture halls | Upright posture support for long-duration presentations and meetings | |
| Church and religious assembly spaces | Formal aesthetic and quiet tip-up seat for congregation seating | |
| Government and corporate boardrooms | Mahogany wood finish provides a formal professional appearance for formal meeting spaces | |
| School and university lecture theaters | Durable construction supports daily high-traffic student use for class sessions | |
| Cinema and media screening rooms | Upholstered padding reduces ambient noise and provides comfortable viewing seating | |
| 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 | Strength, durability and safety requirements for fixed auditorium seating, recommended acceptance standard | |
|---|---|---|
| EN 1021-1:2014 | Upholstered furniture flammability resistance to smoldering cigarette, recommended for public venue use | |
| EN 1021-2:2014 | Upholstered furniture flammability resistance to match flame equivalent, recommended for public space installations |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to solid wood frame components | |
|---|---|---|
| GB/T 39600-2021 | Formaldehyde emission limits for wood-based panels, applies to internal plywood components | |
| GB 20286-2006 | Fire performance requirements for upholstered furniture in public assembly venues, recommended specification for public use |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to solid wood frame components; 2. GB/T 39600-2021: Formaldehyde emission limits for wood-based panels, applies to internal plywood components; 3. GB 20286-2006: Fire performance requirements for upholstered furniture in public assembly venues, recommended specification for public use; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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