| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall unit dimensions (4-seat row) | 2200 x 900 x 960 mm | |
|---|---|---|
| Individual seat width | 550 mm | |
| Individual seat depth | 432 mm | |
| Seat surface height from floor | 450 mm | |
| Backrest height above seat surface | 450 mm | |
| Continuous writing table height from floor | 760 mm | |
| Writing surface depth per place | 300 mm | |
| Writing table front modesty panel height | 350 mm | |
| Floor T-base footprint per support | 355 mm long | |
| Armrest height from floor | 650 mm | |
| Row clearance between seat front and table rear | 280 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 static load capacity | 150 kg | |
|---|---|---|
| Unit net weight (4-seat row) | 112 kg | |
| Recommended user weight per seat | 120 kg | |
| Seat/frame cycle durability rating | 50000 use cycles | |
| Floor mount pull-out resistance per foot | 8 kN | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ | |
| Upholstery Thickness / Abrasion Reference | 1.4 mm / 50000 cycles | |
| Five-star Base Static Load Reference | Acceptance target ≥120 kg; chair reference load 150 kg | |
| Caster Rolling Durability Reference | Acceptance target 30000 cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back panels | 15mm thick curved multi-layer plywood, wood veneer finish | |
|---|---|---|
| Support frame and legs | 2.5mm thick cold-rolled steel, grey epoxy powder-coated finish | |
| Continuous writing table top | 25mm thick high-density particleboard, fire-resistant HPL laminate face, PVC edge banding | |
| Front modesty panel | 18mm thick laminated wood panel, matching table finish | |
| Floor mounting feet | 4mm thick pressed steel T-plates, anti-corrosion coated | |
| Hardware fasteners | Grade 8.8 zinc-plated steel expansion bolts for floor fixing | |
| Panel edge treatment | 2mm thick impact-resistant PVC edge trim on all wood components | |
| Metal surface finish | 70μm thick epoxy powder coat, scratch and rust resistant | |
| 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 | |
| Tilt Mechanism Plate Thickness | 2.5 mm cold-rolled steel |
Adjustment / rotation / tilt / mobility / storage features
| Installation method | Permanent floor-mounted via expansion bolts on T-base feet, fixed row alignment | |
|---|---|---|
| Writing table configuration | Continuous fixed front writing surface spanning all 4 seats, with integrated front modesty panel | |
| Seat structure | Fixed curved ergonomic plywood seat pans, no tip-up or folding mechanism visible | |
| Seating layout | Straight 4-seat linear row configuration, equally spaced individual seat positions | |
| Surface function | Easy-clean laminate writing surface suitable for note-taking, laptop use, and exam writing | |
| Modesty panel function | Solid front panel blocks view of user legs from front, provides structural rigidity to the table | |
| 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
| Tiered lecture hall installation | Suitable for sloped-floor auditoriums and university lecture theaters with permanent fixed seating needs | |
|---|---|---|
| Corporate training room use | Ideal for dedicated corporate training facilities requiring fixed, low-maintenance writing seating | |
| Examination hall deployment | Suitable for school and institutional exam halls requiring fixed separated seating with writing surfaces | |
| Public seminar room installation | Fits public institution seminar rooms with regular scheduled seated events | |
| Vocational classroom application | Appropriate for vocational college and technical school fixed classroom layouts | |
| 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 13761:2002 | Furniture – Educational seating – Test methods and safety requirements | |
|---|---|---|
| EN 1022:2018 | Furniture – Seating – Determination of stability |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to wood panel components | |
|---|---|---|
| GB/T 3325-2017 | General technical requirements for metal furniture, applicable to steel frame components | |
| GB 20286-2006 | Flame retardant requirements for public seating components in high-occupancy spaces |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to wood panel components; 2. GB/T 3325-2017: General technical requirements for metal furniture, applicable to steel frame components; 3. GB 20286-2006: Flame retardant requirements for public seating components in high-occupancy spaces; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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