| 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
| Net product weight range | 13 kg | |
|---|---|---|
| Recommended static user weight limit | 80 kg | |
| Seat height adjustment positions | 8 | |
| Backrest height adjustment positions | 5 | |
| Caster rolling durability cycles | 20000 | |
| Gas lift cycle rating | 10000 | |
| Available color options | 3 | |
| 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
| Seat cushion core | 35mm high-density molded polyurethane foam | |
|---|---|---|
| Backrest panel structure | Dual-split breathable mesh fabric over PP plastic frame | |
| Lift support column | 2mm thick powder-coated steel tube with internal gas spring | |
| Armrests | Injection-molded PP plastic with soft TPE padded top surface | |
| Base frame | Reinforced nylon five-star caster base with floor-protecting soft tread casters | |
| Footrest (if equipped) | Integrated PP plastic height-matching foot platform | |
| Adjustment hardware | Zinc-plated steel height locking clamps and hand levers | |
| Upholstery abrasion resistance | 30000 Martindale cycles | |
| 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
| Seat height adjustment | Hand-crank mechanical lift adjusts seat from 390mm to 600mm floor height | |
|---|---|---|
| Seat depth adjustment | Sliding seat pan provides 80mm forward/back travel to fit thigh length | |
| Split back support | Dual independent back panels follow spinal curvature for dynamic lumbar support | |
| Caster mobility | 360-degree swivel casters allow smooth movement over hard flooring and low-pile carpet | |
| Armrest support | Fixed curved armrests position forearms at neutral angle for writing and typing | |
| Tilt resistance | Wide five-star base provides 10-degree static tilt without tipping | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg | |
| 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
| Children's home study space | Matches height-adjustable study desks for children aged 14 years | |
|---|---|---|
| Training and tutorial center use | Sized for standard classroom study desks, easy to clean and sanitize | |
| Bedroom study nook configuration | Compact footprint fits next to single beds in small bedrooms | |
| Compatible desk pairing | Matches height-adjustable children's desks with 760 mm desktop height | |
| 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
| Children's furniture safety recommendation | EN 1729:2015 | |
|---|---|---|
| Stability test recommendation | EN 1022:2018 | |
| Surface finish recommendation | EN 71:2019 |
Standards applicable to China-market projects
| Applicable safety standard recommendation | GB 28007 | |
|---|---|---|
| Edge safety recommendation | GB/T 3324 | |
| Mechanical stability recommendation | GB/T 10357.3 |
This product must meet the following technical requirements: 1. Applicable safety standard recommendation: GB 28007; 2. Edge safety recommendation: GB/T 3324; 3. Mechanical stability recommendation: GB/T 10357.3; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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