| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall two-seat unit dimensions | 1050 x 700 x 935 mm | |
|---|---|---|
| Single seat center pitch | 525 mm | |
| Writing tablet surface height from floor | 760 mm | |
| Seat surface height from floor | 460 mm | |
| Seat usable depth | 430 mm | |
| Writing tablet usable depth | 300 mm | |
| Writing tablet thickness | 25 mm | |
| Seat cushion panel thickness | 18 mm | |
| Mesh divider panel thickness | 12 mm | |
| Floor foot plate length | 320 mm | |
| Support frame tube wall thickness | 2.5 mm | |
| Minimum recommended row spacing for installation | 900 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 writing tablet static load capacity | 50 kg | |
|---|---|---|
| Unit net weight per two-seat module | 55 kg | |
| Seat return mechanism cycle life | 100000 cycles | |
| Powder coating adhesion grade | Grade 1 | |
| Edge safety radius for all contact surfaces | R10 mm | |
| Recommended installation fastener spec | M8 x 70 mm expansion bolt | |
| 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Support frame and cross beams | Cold-rolled steel with matte black electrostatic powder coating | |
|---|---|---|
| Writing tablet surface | E1-grade high-density MDF with double-sided fire-resistant laminate, PVC edge banding | |
| Seat cushion substrate | Multi-layer plywood with fire-resistant laminate top surface, curved profile | |
| Privacy and back divider panels | Black woven polyester mesh stretched over steel frame | |
| Floor anchor feet | Die-cast steel with black powder coating, pre-drilled mounting holes | |
| Seat return mechanism | Cold-rolled steel gravity hinge with noise-dampening bushing | |
| Cable management loops | 4 mm diameter steel wire, black coated, mounted under seats | |
| Seat side support brackets | Reinforced nylon with black matte finish, curved profile | |
| 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
| Floor mounting system | Fixed to concrete floor via expansion bolts, no movement after installation | |
|---|---|---|
| Seat return mechanism | Gravity-driven automatic silent return to stowed position when unoccupied | |
| Cable routing system | Underseat steel wire loops secure power and data cables for in-seat outlets | |
| Linked row installation | Modules connect end-to-end to form continuous stepped seating rows | |
| Privacy divider design | Mesh panels between seats provide sight line separation between adjacent users | |
| Writing tablet design | Fixed non-folding rectangular tablet positioned for seated writing/laptop use | |
| Stacked row clearance | Designed for tiered floor installation to maintain unobstructed sight lines | |
| 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 | Fixed row configuration designed for stepped university/college classrooms | |
|---|---|---|
| Corporate training room use | Dual-seat units with privacy dividers for focused adult training sessions | |
| Multimedia classroom deployment | Integrated cable routing supports in-seat power and data for device use | |
| Public examination room seating | Separated mesh dividers and fixed tablets support secure exam administration | |
| Conference training center seating | Linked modular rows allow flexible layout of large multi-purpose training spaces | |
| 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 | Functional and safety requirements for educational furniture seating | |
|---|---|---|
| EN 13150:2011 | Work surfaces for educational institutions, strength and durability |
Standards applicable to China-market projects
| GB/T 3976-2014 | Functional size and technical requirements for school desks and chairs | |
|---|---|---|
| GB 18580-2017 | Formaldehyde emission limits for wood-based panel materials | |
| GB/T 9286-1998 | Cross-cut test for paint and coating adhesion on metal surfaces | |
| GB 20286-2006 | Fire performance requirements for public seating materials |
This product must meet the following technical requirements: 1. GB/T 3976-2014: Functional size and technical requirements for school desks and chairs; 2. GB 18580-2017: Formaldehyde emission limits for wood-based panel materials; 3. GB/T 9286-1998: Cross-cut test for paint and coating adhesion on metal surfaces; 4. GB 20286-2006: Fire performance requirements for public seating materials; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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