Physical Dimensions
Automatic mm / inch conversion · Core engineering specifications
Data source: Structured from factory data; final measured values prevail.
| Overall dimensions (W × D × H) | 600 × 500 × 920 mm | |
|---|---|---|
| Seat cushion dimensions | 465 x 440 mm | |
| Maximum seat height (from floor) | 480 mm | |
| Maximum backrest height (from seat) | 550 mm | |
| Maximum seat depth adjustment travel | 80 mm | |
| Five-star base diameter | 580 mm | |
| Fixed armrest height (from seat) | 190 mm | |
| Caster diameter | 50 mm | |
| Backrest width at widest point | 420 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Backrest Padding Thickness | 70 mm | |
| Lumbar Support Zone Height | 240 mm | |
| Clear Width Between Armrests | 540 mm |
Weight, Load & Performance
Net weight / load capacity / users / durability
Data source: Product performance data; verify exact test conditions before procurement.
| Recommended maximum user weight | 150 kg | |
|---|---|---|
| Recommended user age range | 12 years | |
| Chair net weight | 12 kg | |
| Cushion foam density | 45 kg/m³ | |
| Cushion foam thickness | 50 mm | |
| Fabric abrasion resistance | 30000 cycles | |
| Seam stitch pitch | 8 mm | |
| 360-degree swivel static load rating | 300 kg | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Materials & Structure
Core acceptance fields · Panels / hardware / frame / upholstery
Data source: Subject to the factory material list and inspection report.
| Backrest upholstery | Breathable knitted polyester mesh | |
|---|---|---|
| Seat cushion upholstery | Tight-weave polyester mesh over foam | |
| Cushion filler | High-density polyurethane foam | |
| Frame and armrests | White molded PP plastic with smooth finish | |
| Five-star base | Reinforced white nylon/PP composite | |
| Casters | Dual-wheel PU soft casters | |
| Height adjustment mechanism | Class 3 steel pneumatic gas lift | |
| Seat/back adjustment chassis | 2.5 mm thick stamped steel plate | |
| 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 |
Functions & Adjustment
Adjustment / rotation / tilt / mobility / storage features
Data source: Functional configuration; the supplier specification prevails.
| Pneumatic seat height adjustment | 80 mm travel via under-seat lever, locks at set height | |
|---|---|---|
| Seat depth adjustment | 80 mm forward/back travel for growing leg support | |
| 360-degree full swivel function | Smooth rotation around central gas lift axis | |
| Universal rolling casters | Dual-wheel design rolls on hard and soft floor surfaces | |
| Ergonomic lumbar support | Contoured central mesh ridge supports natural lower back curve | |
| Fixed curved armrests | Integrated arm supports for seated forearm rest | |
| Waterfall seat edge | Rounded front edge reduces pressure on back of knees | |
| 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 |
Packaging & Logistics
Verified carton / gross weight / assembly / loading data
Data source: Reference for export quotations and container planning.
| 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 |
Applications & Usage
Recommended spaces / users / usage modes
Data source: Recommended applications based on product form and category.
| Home study space | Pairs with height-adjustable children's study desks for homework use | |
|---|---|---|
| Elementary school classroom | Suitable for classroom computer or task stations for ages 12 | |
| Children's bedroom workspace | Compact footprint fits small desk setups in child bedrooms | |
| Color-coordinated spaces | Available in pink, blue, green to match varied room decor | |
| Hard floor surfaces | Soft PU casters prevent scuffing on wood or tile flooring | |
| Recommended Matching Desk Size | 2.4 m executive desk | |
| Reference Daily Use Duration | 8 hours/day; confirm by ergonomic testing |
EU Market Entry Requirements * EN Standards
EU Market Access Requirements* EN Standards
| EN 1729-1:2015 | Applies to functional and safety requirements for educational chairs | |
|---|---|---|
| EN 12520:2015 | Applies to strength, durability and stability for domestic seating |
North America Purchasing & Inspection Reference * ANSI/BIFMA Standards
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair safety and durability | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Applies to weight capacity testing for large-user office chairs |
Standards Applicable to China-Market Projects * GB Standards
Standards applicable to China-market projects
| GB/T 3976-2014 | Applies to functional size requirements for student desks and chairs | |
|---|---|---|
| GB 28007-2011 | Applies to general safety requirements for children's furniture | |
| GB/T 3324-2017 | Applies to general technical requirements for wooden/metal furniture |
This product must meet the following technical requirements: 1. GB/T 3976-2014: Applies to functional size requirements for student desks and chairs; 2. GB 28007-2011: Applies to general safety requirements for children's furniture; 3. GB/T 3324-2017: Applies to general technical requirements for wooden/metal furniture; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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