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PRODUCT MODULE 01 / 06

Physical Dimensions

Automatic mm / inch conversion · Core engineering specifications

Data source: Structured from factory data; final measured values prevail.

Overall dimensions (W × D × H)	550 × 580 × 980 mm
Seat cushion dimensions	450 x 470 mm
Maximum adjustable seat height	590 mm
Minimum adjustable seat height	390 mm
Maximum adjustable backrest height	950 mm
Seat depth adjustment travel	80 mm
Five-star base diameter	620 mm
Caster diameter	50 mm
Armrest height above seat	180 mm
Backrest width	420 mm
Headrest dimensions	180 x 100 mm
Finished Seat Cushion Thickness	90 mm
Backrest Padding Thickness	70 mm
Lumbar Support Zone Height	240 mm
Clear Width Between Armrests	540 mm

PRODUCT MODULE 02 / 06

Weight, Load & Performance

Net weight / load capacity / users / durability

Data source: Product performance data; verify exact test conditions before procurement.

Maximum static load capacity	300 kg
Recommended user weight	80 kg
Net weight	15 kg
Gas lift fatigue cycle rating	100000 cycles
Fabric abrasion resistance	40000 cycles
Seat foam density	45 kg/m³
Seat foam thickness	60 mm
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

PRODUCT MODULE 03 / 06

Materials & Structure

Core acceptance fields · Panels / hardware / frame / upholstery

Data source: Subject to the factory material list and inspection report.

Upholstery fabric	Stain-resistant breathable knitted fabric
Cushion fill	High-resilience molded polyurethane foam
Backrest fill	High-density polyurethane foam
Structural frame	High-strength ABS and PP plastic
Lift column	Cold-rolled steel gas lift
Chassis plate	2.5mm thick reinforced steel
Five-star base	Reinforced nylon composite
Casters	PU-wheeled gravity self-locking casters
Armrest pads	Soft TPE padded surface
Footrest platform	Textured non-slip PP surface
Seat Internal Support Board Thickness	14 mm bent plywood or equivalent support board
Backrest Internal Frame Thickness	14 mm bent plywood/composite reinforced frame

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

Seat height adjustment	Gas-assisted lift with 200mm vertical travel
Seat depth adjustment	Forward/back sliding with 80mm travel
Caster locking	Gravity-activated automatic lock
Back support design	Dual-lobe split back option
Headrest support	Height-adjustable padded oval headrest
Seam construction	8mm stitch pitch on upholstery
Anti-pinch protection	Covered chassis and lift column gaps
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

PRODUCT MODULE 05 / 06

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

PRODUCT MODULE 06 / 06

Applications & Usage

Recommended spaces / users / usage modes

Data source: Recommended applications based on product form and category.

Home study area	For children 12 years completing homework, reading or online learning tasks
Paired with height-adjustable study desk	Matches 760 mm desk height for upright seated posture
Private tutoring classrooms	Durable, adjustable seating for multi-age student use in small class settings
Reading nooks	Provides postural support during extended independent reading sessions
Color-matched kids’ rooms	Available in pink, blue, green to coordinate with children’s bedroom decor
Recommended Matching Desk Size	2.4 m executive desk
Reference Daily Use Duration	8 hours/day; confirm by ergonomic testing

STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

EN 1729-1:2015	Applicable for educational furniture chair strength and stability requirements
EN 12520:2015	Applicable for domestic furniture seating strength, durability, safety

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

ANSI/BIFMA X5.1-2017	Applicable for office chair durability and safety performance benchmarks
BIFMA G1-2013	Applicable for ergonomic seating guideline reference for posture support

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB 28007-2011	Applicable for children’s furniture general safety requirements
GB 28481-2012	Applicable for restricted harmful substances in plastic furniture
GB/T 3326-2016	Applicable for furniture desk/chair dimension measurement standards

Standardized tender description text

This product must meet the following technical requirements:
1. GB 28007-2011: Applicable for children’s furniture general safety requirements;
2. GB 28481-2012: Applicable for restricted harmful substances in plastic furniture;
3. GB/T 3326-2016: Applicable for furniture desk/chair dimension measurement standards;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

The Height-Adjustable Children's Ergonomic Study Chair (model CESC-555898-ADJ) is a child-sized wheeled seating solution, offered as an unbranded product tailored for supportive long-duration use. Visually, it features a compact, child-proportioned form with a dual-lobe split back support, a padded oval height-adjustable headrest, and a five-point mobile base, offered in pink, blue, and green finishes to coordinate with youth-focused interior palettes. All exposed gaps around the chassis and lift column are fully covered to deliver anti-pinch protection, while upholstery uses consistent 8mm stitch pitch for a neat, durable finished appearance.
Construction prioritizes long-term durability and child-safe comfort: seating surfaces use stain-resistant breathable knitted fabric upholstery, with a 60mm thick, 45 kg/m³ high-resilience molded polyurethane foam seat cushion and high-density polyurethane foam backrest fill for consistent pressure distribution. Structural components include a high-strength ABS and PP plastic frame, 2.5mm thick reinforced steel chassis plate, cold-rolled steel gas lift column, reinforced nylon composite five-star base measuring 620mm in diameter, and 50mm PU-wheeled casters. The chair carries a 300kg maximum static load capacity, with a gas lift rated for 100,000 fatigue cycles and fabric rated for 40,000 abrasion cycles, supporting a recommended user weight of 80kg.
Core functional features support evolving ergonomic needs: gas-assisted seat height adjustment delivers 200mm of vertical travel, with a minimum seat height of 390mm and maximum seat height of 590mm, paired with 80mm of forward and backward seat depth adjustment for customized fit. The gravity-activated caster locking system automatically secures the chair when a user is seated, preventing unintended movement during focused tasks, while the adjustable backrest reaches a maximum height of 950mm to align with growing spines. Overall dimensions measure 550 x 580 x 980 mm, with a 450 x 470 mm seat cushion suited to child body proportions, and a net weight of 15kg for easy repositioning by supervising adults.
This chair fits a range of child-focused spaces: it supports children up to 12 years old during homework, reading, or online learning in home study areas, pairs effectively with 760mm height-adjustable study desks to promote upright seated posture, serves as durable multi-age seating for private tutoring classrooms, delivers postural support for extended reading in dedicated reading nooks, and coordinates with decor in color-matched children’s bedrooms.
Procurement teams should note the product ships as one set across two cartons, with a packaged gross weight of 23kg per set, total carton volume of 0.26 m³ per set, and a 40-minute per-set assembly time. A 20GP container holds 135 sets at 85% space utilization for bulk order planning.

Height-Adjustable Children's Ergonomic Study Chair Specifications

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