| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| 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
| Total net weight per 3-seat row | 145 kg | |
|---|---|---|
| Static load capacity per single seat | 150 kg | |
| Recommended maximum seating capacity | 3 users per unit | |
| Steel frame static load rating per row | 450 kg | |
| Seat slat impact resistance | 1000 cycles | |
| Recommended daily occupancy cycle rating | 8 hours per day | |
| Standard warranty period | 5 years | |
| 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
| Support frame and legs | 2.0mm thick Q235 steel, matte black powder-coated finish | |
|---|---|---|
| Seat slats and frame | 18mm thick solid beech wood, clear lacquer finish | |
| Backrest slats | 15mm thick solid beech wood, vertical slat construction, curved top rail | |
| Writing tablet surface | 25mm thick particleboard core with beech wood veneer, sealed edge | |
| Armrest caps | Solid beech wood, rounded edge profile, mounted to steel frame | |
| Floor mounting feet | 3mm thick pressed steel, powder-coated, pre-drilled for anchor bolts | |
| Seat folding hinge mechanism | Cold-rolled steel, zinc-plated internal components, grease-lubricated pivot | |
| Modesty panel under writing tablet | 15mm thick beech veneer panel, horizontal slat ventilation gaps | |
| 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 mechanism | Spring-loaded folding seat that automatically returns to vertical position when unoccupied | |
|---|---|---|
| Fixed integrated writing tablet | Permanently mounted front writing surface per seat, no folding or adjustment | |
| Floor-mounted installation | Pre-drilled feet secured to concrete or raised access floor with expansion bolts | |
| Shared center armrests | Fixed wood-capped armrests between adjacent seats for ergonomic support | |
| Gangable row configuration | Interlocking steel frame allows connection of multiple 3-seat units for continuous rows | |
| Slatted back ventilation | Vertical slat gaps on backrest allow air circulation for long-duration seating comfort | |
| Cable pass provision | Optional under-table routing channel for power or data cables at tablet edge | |
| Non-removable seat assembly | All wood components fastened to steel frame with tamper-resistant bolts for public space security | |
| 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
| Smaller package (wood components) dimensions | 1200 x 800 x 350 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
| University lecture halls | Fixed row layout provides clear sightlines and dedicated writing space for note-taking | |
|---|---|---|
| Corporate training rooms | Durable construction supports daily all-day training sessions with heavy occupancy | |
| School auditoriums and assembly halls | Tip-up seats allow quick egress and efficient cleaning between events | |
| Conference center seminar rooms | Gangable configuration allows custom row lengths to match room dimensions | |
| Courtroom and public hearing rooms | Formal wood finish and fixed mounting meets official venue requirements | |
| Cinema and performing arts auxiliary seating | Compact footprint maximizes seating capacity without sacrificing legroom | |
| 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 | Furniture - Ranked seating for public areas: safety and strength requirements | |
|---|---|---|
| EN 13761:2002 | Office furniture - Visitor chairs, applicable to public seating structural performance | |
| EN 1022:2018 | Furniture - Seating: determination of stability for fixed floor-mounted seating | |
| EN 16516:2017 | Construction products - Assessment of release of dangerous substances, indoor air quality |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | General purpose office chairs: strength and durability requirements, applied for reference | |
|---|---|---|
| ANSI/BIFMA X6.1-2018 | Educational seating: performance requirements for classroom/lecture hall seating |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to wood seating and tablet components | |
|---|---|---|
| GB/T 24821-2009 | Safety and performance requirements for public venue auditorium seating | |
| GB 18584-2001 | Limit of harmful substances in wood furniture for indoor use, formaldehyde emission limit | |
| GB/T 10357.3-2013 | Furniture mechanical performance test for seating: strength and durability |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to wood seating and tablet components; 2. GB/T 24821-2009: Safety and performance requirements for public venue auditorium seating; 3. GB 18584-2001: Limit of harmful substances in wood furniture for indoor use, formaldehyde emission limit; 4. GB/T 10357.3-2013: Furniture mechanical performance test for seating: strength and durability; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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