| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall unit dimensions (2 ganged seats) | 1240 x 790 x 1020 mm | |
|---|---|---|
| Individual seat center width | 620 mm | |
| Seat height from floor to cushion top | 450 mm | |
| Armrest height from floor to arm cap | 620 mm | |
| Inner seat usable width between armrests | 530 mm | |
| Seat cushion depth (front to back) | 500 mm | |
| Backrest height from seat surface to top | 570 mm | |
| Round pedestal base diameter | 380 mm | |
| Armrest cap dimensions | 422 x 80 x 29 mm | |
| Perforated modesty panel dimensions per seat | 450 x 600 x 15 mm | |
| Backrest foam thickness | 95 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 (unassembled) | 26 kg | |
|---|---|---|
| Recommended static load per seat | 160 kg | |
| Seat mechanism spring return cycle rating | 100000 cycles | |
| Fabric abrasion resistance (Martindale) | 50000 cycles | |
| Foam density (seat cushion) | 65 kg/m³ | |
| Foam density (backrest) | 55 kg/m³ | |
| Seat tip-up soft-close damping time | 3 seconds | |
| Internal steel frame thickness | 2.0 mm | |
| Seat foam thickness (compressed loaded) | 75 mm | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Blue wear-resistant woven public-seating fabric, anti-pilling, colorfast, breathable | |
|---|---|---|
| Seat cushion padding | Cold-molded high-resilience PU foam, 65 kg/m³, 75mm thick | |
| Backrest padding | Cold-molded high-resilience PU foam, 55 kg/m³, 95mm thick, contoured lumbar support | |
| Armrest caps | Solid varnished hardwood with reddish-brown polished finish | |
| Armrest support brackets | Matte black powder-coated die-cast aluminum/steel, integrated number plate mount | |
| Front modesty panels | Reddish-brown perforated wood-composite panel, uniform acoustic ventilation holes | |
| Internal support frame | 2.0 mm cold-rolled steel, phosphated anti-rust treated, electrostatic powder coated | |
| Pedestal bases | Black powder-coated perforated steel column + round steel floor flange, expansion bolt fixed | |
| Side panels | 3 mm density board upholstered with matching blue fabric | |
| Seat return mechanism | Dual steel spring with silicone damping buffer, silent automatic tip-up | |
| Seat/back inner support panels | 10 mm thick high-density plywood, shaped for ergonomic contour | |
| Surface stitching | Reinforced polyester thread, 8 mm seam pitch, horizontal channel stitching on back |
Adjustment / rotation / tilt / mobility / storage features
| Seat tip-up operation | Automatic dual-spring damped return to vertical position when unoccupied, soft close to eliminate impact noise | |
|---|---|---|
| Floor installation | Permanent fixed mount via hex expansion bolts through round base flanges, with plastic dust caps over fasteners | |
| Ganged row alignment | Adjacent seats connected via shared armrest brackets for uniform row spacing and structural rigidity | |
| Acoustic performance | Perforated front modesty panels diffuse reflected sound to reduce echo in large assembly halls | |
| Mounting accessory compatibility | Armrest supports pre-configured for seat/row number plates, optional cup holders or writing tablets | |
| Fire safety customization | Upholstery and foam available with B1 flame-retardant treatment for public assembly code compliance | |
| Seat access clearance | Tip-up seat provides 300 mm minimum row passage clearance when folded upright | |
| Back support ergonomics | Triple-curved contoured back with horizontal channel quilting supports lumbar, mid-back and shoulder regions | |
| Finish customization | Wood panel finish, fabric color, and embroidery options available to match venue interior design | |
| 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 |
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
| Large auditorium and lecture hall | Permanent row installation for tiered or flat-floor venues, supports long-duration event seating for audiences | |
|---|---|---|
| Conference center and government assembly hall | Formal wood-trim aesthetic matches official venue design, quiet tip-up mechanism minimizes meeting disruption | |
| University and college lecture theater | Durable construction withstands daily high-frequency student use, ergonomic support improves long-class comfort | |
| Cinema and performing arts theater | Perforated panels support venue acoustic design, tip-up seats improve passage clearance between rows | |
| Church and multi-purpose public assembly space | Ganged configuration maintains orderly row alignment, customizable finishes match venue decorative schemes | |
| 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 12727:2016 | Applies to ranked public seating; specifies strength, stability and durability test methods for fixed auditorium chairs | |
|---|---|---|
| EN 1021-1:2014 | Applies to upholstered furniture; specifies smouldering cigarette ignition resistance requirements for public venue seating | |
| EN 1021-2:2014 | Applies to upholstered furniture; specifies match flame ignition resistance requirements for public seating fabrics and foam |
Standards applicable to China-market projects
| GB 20286-2006 | Applies to public venue furniture; sets flame retardant performance requirements for upholstered seating components | |
|---|---|---|
| GB/T 3324-2017 | Applies to general wooden furniture; specifies finish adhesion, wear resistance and panel strength requirements for wood trim | |
| GB/T 1952.1-2012 | Applies to upholstered furniture; sets foam resilience, fabric durability and structural safety requirements for seating |
This product must meet the following technical requirements: 1. GB 20286-2006: Applies to public venue furniture; sets flame retardant performance requirements for upholstered seating components; 2. GB/T 3324-2017: Applies to general wooden furniture; specifies finish adhesion, wear resistance and panel strength requirements for wood trim; 3. GB/T 1952.1-2012: Applies to upholstered furniture; sets foam resilience, fabric durability and structural safety requirements for seating; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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