| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall 2-seat module dimensions | 1180 x 850 x 925 mm | |
|---|---|---|
| Writing surface height above finished floor | 760 mm | |
| Seat height above finished floor | 450 mm | |
| Per-seat center distance between adjacent positions | 590 mm | |
| Writing surface depth per seat | 400 mm | |
| Writing surface panel thickness | 25 mm | |
| Modesty front panel height | 590 mm | |
| Seat panel usable width | 456 mm | |
| Seat panel usable depth | 542 mm | |
| Flared support leg base plate width | 320 mm | |
| Minimum knee clearance under desk surface | 280 mm | |
| Cross beam square tube section | 80 x 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
| Unit net weight per 2-seat module | 62 kg | |
|---|---|---|
| Recommended static load per writing surface | 150 kg | |
| Recommended static load per seat | 260 kg | |
| Minimum required row-to-row pitch for clearance | 900 mm | |
| Seat tip-up mechanism silent return cycle rating | 50000 cycles | |
| Steel frame static load capacity per anchor point | 1000 kg | |
| Surface abrasion resistance rating for laminate panels | 2000 cycles | |
| 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Writing surface panel | E1-grade MDF core with fire-resistant HPL laminate, 25mm thick | |
|---|---|---|
| Modesty and back divider panels | 15mm multi-layer plywood with light wood-look melamine finish | |
| Support legs and cross beams | 2mm thick cold-rolled steel, matte grey electrostatic powder-coated | |
| Floor anchor base plates | 5mm thick hot-rolled steel, pre-drilled for bolt fixation | |
| Tip-up seat panels | 18mm multi-layer solid wood with light wood finish, curved ergonomic edge | |
| Seat return mechanism cover | Black PP plastic housing for hydraulic buffered damper | |
| Seat cushion (optional upgrade) | 35mm thick molded polyurethane foam, density 45kg/m³ | |
| Panel edge banding | 1mm thick PVC or PU edge trim matching light wood 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 | |
| Tilt Mechanism Plate Thickness | 2.5 mm cold-rolled steel |
Adjustment / rotation / tilt / mobility / storage features
| Tip-up seat operation | Hydraulic buffered slow-return mechanism, folds vertically when unoccupied to clear aisle access | |
|---|---|---|
| Floor installation method | Fixed via expansion anchor bolts through flared base plates, compatible with sloped tiered hall floors | |
| Under-desk storage provision | Integrated 430x220x105mm steel wire book net under each writing surface | |
| Row modularity | Units connect side-by-side to form continuous straight or curved seating rows | |
| Back panel function | Vertical rear panel acts as modesty barrier and front kick panel for the row directly behind | |
| Seat divider function | Vertical center panel separates adjacent seating positions to define personal space | |
| Optional power integration | Desk edge can be factory-cut to accommodate AC power and USB charging outlets as an upgrade | |
| Frame finish corrosion resistance | Powder-coated steel frame resists scuffs and routine cleaning chemical exposure | |
| 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
| Shipping carton dimensions per module | 1220 x 880 x 320 mm | |
|---|---|---|
| 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 university lecture halls | Suitable for sloped fixed-row layouts with clear sightlines for large class sizes | |
|---|---|---|
| Corporate training auditoriums | Ideal for continuous-row seating with integrated writing surfaces for note-taking | |
| Secondary school multi-purpose halls | Durable construction withstands heavy student traffic with easy aisle access via tip-up seats | |
| Public conference auditoriums | Neutral light wood and grey finish complements formal public event spaces | |
| Exam hall fixed seating | Separated seat positions and individual writing surfaces support standardized exam administration | |
| Government hearing rooms | Quiet damper seat return prevents noise disruption during formal proceedings | |
| 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 1729-1:2015 | Applicable European standard for educational furniture safety and strength requirements | |
|---|---|---|
| EN 1729-2:2012 | Applicable European standard for educational furniture functional dimension requirements |
Standards applicable to China-market projects
| GB/T 3976-2014 | Applicable standard for functional sizing of school desks and chairs for educational use | |
|---|---|---|
| GB 18580-2017 | Applicable standard for formaldehyde emission limits from wood-based panel products | |
| GB 28007-2011 | Applicable standard for safety and durability of children's and school furniture |
This product must meet the following technical requirements: 1. GB/T 3976-2014: Applicable standard for functional sizing of school desks and chairs for educational use; 2. GB 18580-2017: Applicable standard for formaldehyde emission limits from wood-based panel products; 3. GB 28007-2011: Applicable standard for safety and durability of children's and school furniture; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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