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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)	544 × 770 × 720 mm
Maximum seat height	460 mm
Minimum seat height	325 mm
Seat depth	420 mm
Backrest height adjustment travel	160 mm
Footrest platform length	770 mm
Armrest height above seat	180 mm
Backrest width per lobe	220 mm
Applicable child height	1700 mm
Minimum total chair height	540 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.

Net weight	18 kg
Static weight capacity	150 kg
Seat foam density	45 kg/m³
Foam rebound resilience	60%
Fabric abrasion resistance	30000 Martindale cycles
Anti-tilt stability angle	10°
Recommended user age	14 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

PRODUCT MODULE 03 / 06

Materials & Structure

Core acceptance fields · Panels / hardware / frame / upholstery

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

Internal support frame	1.5mm thick powder-coated carbon steel
Structural plastic components	High-impact food-grade PP plastic with rounded safety edges
Seat cushion core	45kg/m³ high-density molded PU foam
Backrest cushion core	35kg/m³ medium-density PU foam
Upholstery fabric	280g/m² breathable three-proof knitted polyester
Fixed armrest pads	Padded soft-touch PU surface over PP base
Integrated footrest platform	Textured non-slip PP plastic surface
Caster housings	Translucent pink PP plastic with soft PU rolling tires
Gas lift cylinder	50mm diameter Class 3 steel gas lift
Seat Internal Support Board Thickness	14 mm bent plywood or equivalent support board
Backrest Internal Frame Thickness	14 mm bent plywood/composite reinforced frame
Tilt Mechanism Plate Thickness	2.5 mm cold-rolled steel

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

Seat height adjustment	135mm total vertical travel via gas lift, multi-position lock
Backrest adjustment	25° adaptive tilt and 160mm height adjustment for spine alignment
Caster locking	Gravity-activated auto-lock that engages under 15kg+ user weight
Footrest function	Integrated wide non-slip platform for shorter children to rest feet
Lumbar support	Dual split backrest lobes that independently conform to spine curve
Armrest design	Fixed height padded armrests to support seated elbow posture
Seam construction	8 stitches per inch reinforced stitching for upholstery durability
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 space	Suitable for children's bedroom or dedicated home study area
Height-adjustable desk pairing	Designed for use with matching height-adjustable children's study desks
Tutoring and learning centers	Appropriate for after-school tutoring centers and classroom use
Target user group	Designed for children 14 years old, 170 cm tall
Posture correction use	Ideal for children requiring upright seated posture support
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

Children's furniture safety	EN 1729:2015
Upholstery fabric safety	EN 14465:2003

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

Office seating safety	ANSI/BIFMA X2017

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

Children's furniture safety	GB 28007
Formaldehyde emission	GB 18584

Standardized tender description text

This product must meet the following technical requirements:
1. Children's furniture safety: GB 28007;
2. Formaldehyde emission: GB 18584;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

The Adjustable Ergonomic Children's Study Chair with Split Backrest (model KSC-PNK-054, unbranded) features a purpose-built form tailored to growing young users, anchored by its signature dual-lobe split backrest. Each backrest lobe measures 220 mm wide, positioned to independently contour to the natural spine curve, with fixed padded armrests set 180 mm above the seat to support neutral elbow positioning. An integrated wide non-slip footrest runs along the chair’s base, with translucent pink PP caster housings holding soft PU rolling tires that complement the chair’s child-centric aesthetic, while all exposed structural edges are rounded for safety. Its core frame is constructed from 1.5 mm thick powder-coated carbon steel, paired with high-impact food-grade PP structural parts. The seat cushion uses 45 kg/m³ high-density molded PU foam, while backrest cushions feature 35 kg/m³ medium-density PU foam, both upholstered in 280 g/m² breathable three-proof knitted polyester secured with 8 stitches per inch reinforced stitching for long-term wear. The 50 mm diameter Class 3 steel gas lift enables height adjustment, with armrest pads built with soft-touch PU over PP bases, and the footrest platform finished in textured non-slip PP. Overall dimensions are 544 x 770 x 720 mm, with a net weight of 18 kg and 150 kg static weight capacity; the fabric delivers 30,000 Martindale cycles of abrasion resistance, 60% foam rebound resilience, and 10° anti-tilt stability for reliable daily use. Functional features are designed to support healthy seated posture: seat height adjusts 135 mm vertically between 325 mm and 460 mm with multi-position lock, the backrest offers 25° adaptive tilt and 160 mm of height travel to maintain spinal alignment, and casters use gravity-activated auto-lock that engages when user weight exceeds 15 kg to prevent unintended movement during study. The wide non-slip footrest accommodates shorter children who cannot reach the floor, while the split backrest lobes provide targeted lumbar support to encourage upright posture. This chair is suited for home study spaces including children’s bedrooms and dedicated home study areas, pairs with height-adjustable children’s study desks, and is appropriate for after-school tutoring centers and classroom settings. It is designed for users up to 14 years old and 170 cm tall, ideal for children needing structured posture support, and compatible with 2.4 m executive desks for coordinated setups. For procurement, note each unit ships in 2 cartons with a 23 kg packaged gross weight and 0.26 m³ total carton volume, with 85% space utilization in a 20GP container allowing 135 sets per load. On-site assembly requires 40 minutes per set; select orders that align with space layout and age-specific user needs to ensure optimal fit and functional value.

Adjustable Ergonomic Children's Study Chair with Split Backrest Specifications

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