| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall unit dimensions | 580 x 720 x 1030 mm | |
|---|---|---|
| Seat center-to-center distance | 580 mm | |
| Seat height (top of cushion to floor) | 460 mm | |
| Armrest height (top of arm to floor) | 625 mm | |
| Armrest cap dimensions | 420 x 80 x 22 mm | |
| Seat usable inner width | 490 mm | |
| Backrest panel dimensions | 520 x 765 x 17 mm | |
| Seat outer panel dimensions | 465 x 430 x 12 mm | |
| Seat cushion foam thickness | 140 mm | |
| Backrest foam thickness | 120 mm | |
| Steel frame tube thickness | 2.2 mm | |
| Floor mounting foot dimensions | 310 x 74 x 26 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
| Single unit net weight | 28 kg | |
|---|---|---|
| Recommended static user load | 150 kg | |
| Seat foam density | 55 kg/m³ | |
| Back foam density | 55 kg/m³ | |
| Foam rebound rate | 45% | |
| Fabric abrasion resistance | 50000 cycles | |
| Upholstery static coefficient of friction | 0.4 | |
| Seat return mechanism cycle life | 100000 cycles | |
| Mounting fastener salt spray resistance | 18 h | |
| Standard commercial warranty | 5 years |
Core acceptance fields · Panels / hardware / frame / upholstery
| Upholstery fabric | Wool-linen blend, anti-static, anti-fouling blue woven fabric | |
|---|---|---|
| Seat cushion padding | Cold-molded high-resilience polyurethane foam | |
| Backrest padding | Cold-molded supportive polyurethane foam | |
| Outer seat/back panels | Perforated beech veneer plywood with matte clear paint | |
| Armrests | Solid beech wood with matte polyester paint finish | |
| Support frame and stanchions | 2.2 mm cold-rolled steel with black electrostatic powder coating | |
| Side panels | Fabric-upholstered 3mm MDF core | |
| Mounting hardware | Hex expansion bolts with rust-proof coating, plastic end caps | |
| Return mechanism components | Die-cast aluminum torsion spring assembly with rubber damping | |
| 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 return mechanism | Gravity-activated torsion spring damped automatic silent return | |
|---|---|---|
| Mounting configuration | Floor-fixed ganged row installation with shared stanchions between seats | |
| Acoustic performance | Perforated wood outer panels provide sound absorption to reduce hall echo | |
| Seam construction | Reinforced fabric stitching at 30mm seam pitch | |
| Customization options | Available with optional fold-down writing tablet, cup holder, seat number plates | |
| Fabric treatment options | Optional flame-retardant, anti-fouling, anti-static fabric upgrades | |
| Row compatibility | Configurable for straight, curved, or tiered lecture hall/auditorium rows | |
| 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
| University lecture halls and tiered classrooms | Fixed ganged design supports high-capacity seating with clear aisle access | |
|---|---|---|
| Corporate auditoriums and conference halls | Formal wood trim and blue upholstery suit professional event spaces | |
| Government and institutional assembly halls | Sturdy floor-mounted design meets public venue safety requirements | |
| Cinema and performing arts theaters | Ergonomic contoured backrest supports long-duration audience seating | |
| Training centers and multi-purpose halls | Ganged configuration allows custom row layouts for flexible space use | |
| School performance halls and auditoriums | Robust construction withstands heavy use by student and visitor audiences | |
| 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 13761:2007 | Applicable for strength, stability and durability of public seating | |
|---|---|---|
| EN 1021-1:2014 | Applicable standards and test results require confirmation |
Standards applicable to China-market projects
| GB 18584-2001 | Applicable standards and test results require confirmation | |
|---|---|---|
| GB 18583-2008 | Applicable standards and test results require confirmation | |
| GB 28481-2012 | Applicable standards and test results require confirmation |
This product must meet the following technical requirements: 1. GB 18584-2001: Applicable standards and test results require confirmation; 2. GB 18583-2008: Applicable standards and test results require confirmation; 3. GB 28481-2012: Applicable standards and test results require confirmation; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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