| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
No corrections yet. Use the flag at the end of a row to report an issue. | ||||
Automatic mm / inch conversion · Core engineering specifications
| Overall assembled dimensions | 560 x 625 x 890 mm | |
|---|---|---|
| Seat width | 500 mm | |
| Seat depth | 450 mm | |
| Seat height from floor | 485 mm | |
| Total backrest height above seat | 435 mm | |
| Lumbar support zone height above seat | 230 mm | |
| Writing tablet surface dimensions | 270 x 405 mm | |
| Writing tablet projection from chair side | 180 mm | |
| Folded storage profile depth | 525 mm | |
| Front leg spread width | 560 mm | |
| Rear leg projection depth | 550 mm | |
| Seat to writing tablet vertical clearance | 300 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
| Recommended static user weight capacity | 120 kg | |
|---|---|---|
| Writing tablet vertical static load capacity | 20 kg | |
| Unit net weight | 12 kg | |
| Stacking quantity for storage | 10 units | |
| Seat foam density | 45 kg/m³ | |
| Seat foam rebound rate | 45% | |
| Fabric upholstery abrasion resistance | 50000 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
| Backrest panel | Injection-molded perforated PP plastic, 5mm thick | |
|---|---|---|
| Seat cushion core | 40mm thick high-density polyurethane foam | |
| Seat upholstery | Breathable polyester fabric, 0.8mm thick | |
| Seat support plate | 12mm thick plywood internal panel | |
| Frame construction | 1.8mm thick cold-rolled steel tube, black epoxy powder coat | |
| Armrests | Injection-molded fixed PP plastic, integrated with frame | |
| Writing tablet | 15mm thick ABS composite board, matte black finish | |
| Ganging connector | Zinc-plated steel male-female interlock fitting | |
| Foot glides | Injection-molded non-slip PP glides | |
| Hinge hardware | Zinc-plated steel folding hinges with tension bushings | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame |
Adjustment / rotation / tilt / mobility / storage features
| Tablet folding operation | One-hand flip-up tablet that tucks flush against chair side when unused | |
|---|---|---|
| Row ganging system | Integrated side connectors interlock adjacent chairs into straight rows | |
| Folding storage mechanism | Frame folds forward to reduce storage footprint by 50% | |
| Ventilated back support | Perforated PP back allows air circulation for multi-hour seating | |
| Fixed arm support | Rigid non-adjustable armrests support forearms during writing | |
| Tablet surface features | Flat rigid writing surface supports notebooks, laptops and documents | |
| Non-swivel fixed base | Four-point splayed leg frame provides static stable seating | |
| Stacking capability | Chairs nest vertically when folded to minimize storage space | |
| 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
| Corporate training rooms | Stackable ganged design supports flexible row layouts for multi-day training sessions | |
|---|---|---|
| Conference and meeting spaces | Foldable tablet enables quick conversion between note-taking and discussion layouts | |
| Educational classrooms and lecture halls | Durable easy-to-clean construction suits high-frequency daily student use | |
| Temporary event seating | Nesting design allows fast setup and compact storage for pop-up events | |
| Exam and assessment centers | Stable individual writing surface provides dedicated workspace for test takers | |
| Co-working space meeting zones | Lightweight movable units support reconfigurable collaborative space 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 1335-1:2020 | Office work chair dimensions and safety requirements, applicable for ergonomic sizing | |
|---|---|---|
| EN 1022:2018 | Seating furniture mechanical strength and stability test methods | |
| EN 12520:2015 | Furniture strength, durability and safety requirements for domestic and contract seating |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | General purpose office chairs safety and performance standard for commercial use | |
|---|---|---|
| ANSI/BIFMA X5.4-2021 | Lounge and public seating performance requirements for training/conference applications |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for metal furniture, applicable to steel frame structure | |
|---|---|---|
| GB/T 35607-2017 | Green product assessment requirement for furniture, applicable for low-VOC material selection | |
| GB 28007-2011 | Safety and mechanical performance requirements for children and adult institutional seating |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for metal furniture, applicable to steel frame structure; 2. GB/T 35607-2017: Green product assessment requirement for furniture, applicable for low-VOC material selection; 3. GB 28007-2011: Safety and mechanical performance requirements for children and adult institutional seating; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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