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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)	635 × 680 × 1215 mm
Seat width	505 mm
Seat depth	465 mm
Seat height adjustment range max	525 mm
Backrest height above seat	570 mm
Headrest width	315 mm
Headrest vertical travel	60 mm
Armrest height above seat	200 mm
Back frame upper width	430 mm
Armrest floor height max	725 mm
Five-star base diameter	350 mm
Caster diameter	60 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 user weight capacity	136 kg
Product net weight	20 kg
Five-star base static load rating	1000 kg
Caster rolling durability	100000 cycles
Recommended daily usage duration	8 hours
Gas lift cycle rating	100000 cycles
Warranty period for structural parts	3 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.

Backrest construction	Breathable woven mesh over nylon-fiberglass frame
Seat cushion fill	45D high-density molded polyurethane foam
Seat cushion upholstery	Breathable stretch mesh fabric top with wear-resistant edge trim
Headrest cushion	Curved mesh padded panel with plastic support bracket
Armrests	Polypropylene structural core with soft PU padded top, fixed height
Five-star base	Glass-reinforced nylon molded base, 2.5mm wall thickness
Gas lift cylinder	Class 3 black steel gas lift, 50mm outer tube diameter, 85mm stroke
Tilt mechanism	3mm thick steel plate center-tilt mechanism with tension adjustment
Casters	Dual-wheel PU soft tread casters with PA core, floor-safe design
Seam stitch pitch	8 mm
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	Pneumatic gas lift adjusts 85mm between 525 mm seat height
Headrest adjustment	60mm vertical height adjustment to support cervical spine
Recline function	Center-tilt mechanism locks at 90° upright and 120° recline positions
Swivel function	360-degree full rotation around central gas lift axis
Mobility	Five dual-wheel casters enable smooth rolling on hard and carpet floors
Lumbar support	Integrated contoured mesh lumbar zone aligns to natural lower back curve
Tilt tension control	Under-seat knob adjusts recline resistance to match user weight
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 office workstation	Suitable for long-duration computer work at standard 760 mm height desks
Open plan corporate office	Appropriate for employee workstations requiring breathable support for full shifts
Conference meeting rooms	Suitable for meeting seating with swivel access and fixed arm support
Small business workspaces	Ideal for startup or co-working spaces requiring durable, easy-to-maintain seating
Height-matched desk compatibility	Pair with 760 mm height desks to maintain 300 mm seated elbow clearance
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

Office furniture seating safety	EN 1335:2020
Office furniture seating mechanical testing	EN 1335:2009

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

Office chair safety and performance	ANSI/BIFMA X2017

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

Office chair structural safety	GB/T 10357.3
Office chair general technical requirements	GB/T 22792.1

Standardized tender description text

This product must meet the following technical requirements:
1. Office chair structural safety: GB/T 10357.3;
2. Office chair general technical requirements: GB/T 22792.1;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

The Ergonomic High-Back Mesh Office Chair with Adjustable Headrest, model OFCH-MESH-HB-635, is an unbranded ergonomic seating solution built for consistent daily use. Its visual profile features a tall, contoured mesh backrest paired with a structured seat, fixed padded armrests, a curved height-adjustable headrest, and a wide five-star base finished in smooth matte black nylon, creating a streamlined, professional silhouette that blends unobtrusively into a range of interior settings. Constructed for durable, long-term performance, the chair uses a breathable woven mesh backrest stretched over a nylon-fiberglass frame, paired with a seat padded with 45D high-density molded polyurethane foam topped with breathable stretch mesh and wear-resistant edge trim. The frame and fixed armrests are built with robust polypropylene cores softened with PU padding for comfortable arm support, while the glass-reinforced nylon five-star base features 2.5mm wall thickness to deliver stable support. Smooth, floor-safe dual-wheel PU casters attach to the base, paired with a Class 3 black steel gas lift and 3mm thick steel plate center-tilt mechanism to deliver reliable movement and adjustment. Designed for user comfort across full work shifts, the chair supports up to 8 hours of recommended daily use, with pneumatic seat height adjustment that reaches 525 mm at its maximum setting. The headrest moves 60mm vertically to cradle the cervical spine, while an integrated contoured lumbar zone aligns with the natural curve of the lower back. The tilt mechanism locks at both a 90-degree upright position for focused work and a 120-degree recline for relaxed posture, with an under-seat knob to adjust recline tension to match user weight. Full 360-degree swivel and smooth-rolling casters allow easy movement across both hard flooring and carpeted surfaces. This chair fits seamlessly in home office workstations, open plan corporate employee workstations, conference rooms, and small business or co-working spaces, and is calibrated to pair with 760mm height desks to maintain proper seated elbow clearance, with suitability for use alongside 2.4m executive desks. Procurement teams and individual buyers should note the chair ships in two cartons per set, with an 40-minute assembly time per unit. Structural parts carry a 3-year warranty, and the model supports a maximum user weight of 136 kg, with high cycle ratings for gas lift and caster durability to support high-traffic commercial use. The compact packaged dimensions also support efficient bulk shipping for large space fit-outs.

Ergonomic High-Back Mesh Office Chair with Adjustable Headrest Specifications

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