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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)	680 × 670 × 1050 mm
Seat height	425 mm
Seat depth	480 mm
Backrest width	505 mm
Headrest width	425 mm
Headrest vertical adjustment travel	250 mm
Armrest height from floor	610 mm
5-star base diameter	660 mm
Caster diameter	60 mm
Seat cushion thickness	80 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.

Recommended user weight capacity	150 kg
Net chair weight	20 kg
Seat foam density	45 kg/m³
Foam rebound rate	60%
Back mesh abrasion resistance	50000 cycles
5-star base static load rating	1600 kg
Caster rolling durability	100000 cycles
Recommended daily usage duration	8 hours
Recommended maximum daily usage duration	8 hours
Seat Foam Density / Rebound Reference	45 kg/m³ / 65%

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 upholstery	Breathable polyester mesh
Seat cushion padding	High-density molded polyurethane foam
Seat base support	12 mm bent plywood inner panel
Back frame	Reinforced PP+fiberglass Y-frame
Armrest structure	Steel support post with PU padded top
Gas lift cylinder	Class 4 steel pneumatic cylinder
5-star base	Reinforced nylon construction
Casters	PA+PU dual-wheel swivel casters
Headrest padding	Breathable mesh with curved PP support
Seat inner support panel	12 mm thick bent plywood core
Back support frame	Reinforced PP+fiberglass Y-shaped frame
Armrest assembly	1.5 mm steel support post with PU padded top

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

Headrest adjustment	250 mm vertical height adjustment for neck support
Seat height adjustment	100 mm pneumatic lift via under-seat lever
Swivel function	360-degree full rotation around central axis
Backrest tilt function	135-degree recline with multi-position lock
Tilt tension adjustment	Knob-controlled tension for user weight calibration
Armrest adjustment	80 mm vertical height adjustment for arm support
Mobility function	Dual-wheel casters for smooth rolling on hard and carpet floors
Lumbar support	Contoured Y-frame static lumbar support integrated into backrest
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.

Private office workspace	Suitable for executive desks requiring 8-hour daily ergonomic support
Open plan office cubicles	Standard footprint fits 700 mm deep workstations without overhang
Home office study	Adjustable features accommodate multiple users in residential workspaces
Conference room seating	Swivel and tilt function supports collaborative meeting use
24-hour call center environments	Breathable mesh and durable construction supports shift work use
Co-working shared spaces	Neutral black finish matches diverse office decor schemes
Private executive office	Suitable for executive desks requiring 8-hour daily ergonomic postural support
Conference meeting rooms	360-degree swivel and tilt support natural movement during collaborative discussions

STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

EN 1335-1:2020	Applies to office work chair dimensional safety and performance requirements
EN 1335-2:2018	Applies to office chair strength, durability and stability testing
EN 1022:2018	Applies to domestic and contract seating stability test methods

STANDARD S2

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 performance testing

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB/T 3326-2016	Applies to office furniture size measurement and dimensional tolerances
GB/T 35607-2017	Applies to green product evaluation for office furniture VOC limits
GB 28007-2011	Applies to structural safety requirements for office chairs

Standardized tender description text

This product must meet the following technical requirements:
1. GB/T 3326-2016: Applies to office furniture size measurement and dimensional tolerances;
2. GB/T 35607-2017: Applies to green product evaluation for office furniture VOC limits;
3. GB 28007-2011: Applies to structural safety requirements for office chairs;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

The High-Back Ergonomic Mesh Office Chair with Adjustable Headrest (model KL-05A/B, unbranded) presents a streamlined, professional silhouette tailored for extended seated use, with a contoured high-back structure, curved integrated headrest, and evenly proportioned layout that balances support with a compact footprint suitable for standard desk configurations. Its construction pairs a breathable polyester mesh backrest supported by a reinforced PP+fiberglass Y-frame with a padded fabric seat built over a 12 mm bent plywood inner panel, cushioned with high-density molded polyurethane foam. The frame combines plastic and metal structural elements, anchored by a reinforced nylon 5-star caster base fitted with PA+PU dual-wheel swivel casters. Armrests feature steel support posts topped with soft PU padding, while height and tilt adjustments operate via a Class 4 steel pneumatic cylinder. The headrest uses breathable mesh over a curved PP support for consistent neck contact. This chair delivers comprehensive adjustability for personalized comfort, including 250 mm vertical headrest travel, 100 mm pneumatic seat height adjustment controlled by an under-seat lever, 80 mm vertical armrest height adjustment, and 360-degree swivel rotation. The backrest supports 135-degree recline with multi-position locking, paired with a knob-controlled tilt tension feature to calibrate resistance to individual user preference. Dual-wheel casters enable smooth rolling across both hard flooring and carpeted surfaces. It is well suited for a wide range of commercial and residential spaces, including private executive offices for daily extended use, open plan office cubicles where its standard footprint fits standard workstations without overhang, residential home offices shared by multiple users, conference rooms supporting collaborative meetings, 24-hour call centers for shift-based work, and co-working shared spaces, where its neutral black finish aligns with varied decor schemes. For procurement, note that each unit ships across two cartons, with an assembly time per set. The 20GP container loading capacity supports bulk order planning for large fit-out projects, and the chair’s weight rating accommodates a broad range of users across shared or dedicated workstations.

High-Back Ergonomic Mesh Office Chair with Adjustable Headrest Specifications

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