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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)	670 × 675 × 1200 mm
Minimum seat height	440 mm
Maximum seat height	620 mm
Seat depth	460 mm
Backrest width	490 mm
Gas lift height adjustment stroke	180 mm
Seat surface width	500 mm
Five-star base diameter	670 mm
Fixed armrest height above seat	220 mm
Backrest height from seat	700 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 chair weight	15 kg
Recommended static user load capacity	150 kg
Caster rolling durability cycles	100000
Seat foam density	40 kg/m³
Seat foam rebound rate	40%
Mesh backrest abrasion resistance cycles	50000
Backrest tilt durability cycles	100000
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.

Backrest panel	Breathable woven polyester mesh
Back frame	Glass-fiber reinforced PA nylon
Seat pan core	15 mm thick E1 grade bent plywood
Seat cushion padding	60 mm thick molded high-resilience polyurethane foam
Fixed T-armrests	Injection-molded PP with flat PU top pad
Five-star base	Injection-molded black nylon
Gas lift cylinder	Class 3 chrome-plated steel, 50 mm tube diameter
Tilt mechanism	2.5 mm thick stamped steel butterfly chassis
Casters	60 mm diameter black PU dual-wheel swivel casters
Integrated clothes hanger	Curved PP nylon integrated at back frame top
Adjustable lumbar support	PP frame with padded support pad
Backrest support panel	Breathable woven polyester mesh tensioned across frame

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

Pneumatic seat height adjustment	180 mm vertical stroke controlled by under-seat lever
360-degree swivel rotation	Full rotation enabled by central gas lift swivel joint
Backrest tilt function	125 degree maximum recline with single-position lock
Vertical lumbar adjustment	60 mm vertical sliding travel to fit different torso heights
Smooth caster mobility	360 degree swivel casters suitable for hard floor and low-pile carpet
Integrated clothes hanger	Fixed curved hook at back top for hanging jackets or clothing
Fixed T-armrest support	Stable arm support positioned at standard desk working height
Vertical lumbar support adjustment	60 mm vertical sliding travel to align with user lumbar curve
Omnidirectional caster mobility	360 degree swivel casters rated for hard floors and low-pile carpet
Tilt tension adjustment	User-adjustable knob to modify recline resistance for user weight
Recline Angle / Lock Reference	125° with 3suggested lock positions
Tilt Tension User-weight Range	Reference adjustment coverage 120 kg

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.

Open plan office workstations	Suitable for 8-hour daily use at standard 760 mm height desks
Home office study spaces	Compact footprint fits small home work areas without excess space
Staff administrative work areas	Durable construction supports high-turnover frequent use environments
Meeting and conference rooms	Consistent black finish matches standard office furniture design aesthetics
Call center seating deployments	Breathable mesh back reduces heat buildup during long seated shifts
Administrative staff work areas	Durable construction supports high-turnover frequent use in shared workspaces
Call center and helpdesk seating	Breathable mesh back reduces heat buildup during continuous long seated shifts
Recommended Matching Desk Size	2.4 m executive desk

STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

Office chair safety requirements	EN 1335:2018
Office chair stability testing	EN 1335:2009
Office work chair safety requirements	EN 1335:2018
Office chair stability and strength	EN 1335:2018
Office chair surface durability	EN 1335:2018

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

Office chair general purpose tests	ANSI/BIFMA X2017
Five-star base static load test	ANSI/BIFMA X5.1 Clause 5
Office chair general performance standard	ANSI/BIFMA X2017
Caster rolling durability test	ANSI/BIFMA X5.1 Clause 12

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

Office chair dimensional safety	GB/T 3326
Office chair mechanical durability	GB/T 10357.3
Seating environmental limits	GB 18584
Furniture hazardous material limits	GB 18584

Standardized tender description text

This product must meet the following technical requirements:
1. Office chair dimensional safety: GB/T 3326;
2. Office chair mechanical durability: GB/T 10357.3;
3. Seating environmental limits: GB 18584;
4. Furniture hazardous material limits: GB 18584;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

The KL-09 unbranded ergonomic office task chair features a streamlined, functional design tailored for extended seated use, with a consistent matte black finish that aligns with standard commercial office aesthetics. Its form includes a tall, contoured mesh backrest framed by smooth structural components, a wide padded seat, fixed T-shaped armrests positioned at standard desk working height, and a wide five-star base supporting smooth-rolling dual casters. An integrated curved clothes hanger sits fixed at the top rear of the backrest, offering unobtrusive storage for jackets and personal outerwear without disrupting the chair’s clean silhouette. Constructed for long-term durability, the chair uses a breathable woven polyester mesh backrest set in a glass-fiber reinforced PA nylon frame, paired with a seat built on a 15 mm thick E1 grade bent plywood core. The seat cushion holds 60 mm thick molded high-resilience polyurethane foam, topped with soft fabric upholstery for consistent comfort. Armrests are made of injection-molded PP with flat PU top pads, while the base is injection-molded black nylon, fitted with 60 mm diameter black PU dual-wheel swivel casters. Height adjustment relies on a Class 3 chrome-plated steel gas lift cylinder, and the tilt mechanism uses a 2.5 mm thick stamped steel butterfly chassis. The full chair weighs 15 kg, with a rated static user load capacity of 150 kg, and key wear components meet tested durability thresholds for caster rolling, mesh abrasion, and backrest tilt performance. Core functions support flexible, comfortable use: pneumatic seat height adjustment offers an 180 mm vertical stroke controlled by an under-seat lever, with maximum seat height reaching 620 mm to pair with standard 760 mm height desks. The chair enables full 360-degree swivel rotation, backrest recline to 125 degrees with single-position lock, and 60 mm vertical sliding lumbar adjustment to fit varying torso heights. The 360-degree swivel casters move smoothly across hard floors and low-pile carpet, and the mesh back reduces heat buildup during long seated shifts. The chair is suited for open plan office workstations, home office study spaces, staff administrative work areas, meeting and conference rooms, and call center seating deployments, with a compact footprint that fits small work areas without excess space. For procurement, note that each unit ships in 2 cartons, requires 40 minutes of assembly per set, and has a packaged gross weight of 23 kg per set; 135 sets fit in a 20GP container at 85% space utilization for bulk planning.
Overall dimensions measure 670 x 675 x 1200 mm, with a 490 mm wide backrest, 500 mm wide seat, 460 mm seat depth, and 670 mm diameter five-star base, supporting consistent alignment across uniform workspace deployments.

High Back Mesh Ergonomic Office Task Chair with Clothes Hanger Specifications

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