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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)	770 × 686 × 1305 mm
Seat width	521 mm
Seat height range (low to high)	681 mm
Seat depth	480 mm
Backrest height	760 mm
Headrest dimensions (W x H)	320 x 180 mm
Five-star base diameter	700 mm
Caster diameter	60 mm
Armrest height above seat (adjustable range)	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.

Net weight (reference)	21 kg
Maximum recommended static load	159 kg
Seat foam density	50 kg/m³
Seat foam thickness	60 mm
Backrest mesh abrasion resistance	50000 Martindale cycles
Caster rolling durability	100000 cycles
Seam stitch pitch	30 mm per 10 stitches
Recommended user height range	1880 mm
Standard warranty period	5 years
Maximum recommended user height	1880 mm

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 support frame	Glass-fiber reinforced nylon frame
Backrest upholstery	Breathable black polyester mesh
Seat support pan	14 mm thick plywood inner panel
Seat padding	High-density cold-cured molded foam
Seat upholstery	Black wear-resistant woven fabric
Armrest structure	PP support posts with PU soft top pads
Gas lift cylinder	Chrome-plated steel class 3 gas lift
Five-star base	Black reinforced nylon five-star base
Caster wheels	Dual-wheel nylon with PU tread
Chassis mechanism	3 mm thick steel tilt-lock mechanism
Headrest frame and padding	PP inner frame with mesh upholstery
Headrest construction	PP inner frame with matching black mesh upholstery

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

360° swivel rotation	Full 360-degree horizontal rotation enabled by central swivel joint
Seat height adjustment	Pneumatic adjustment via right-side lever, 100 mm vertical travel
Recline tilt function	Synchronized backrest recline up to 135 degrees from upright
Tilt lock mechanism	3-position lock for upright, mid-recline, full-recline positions
Tilt tension adjustment	Knob under seat adjusts recline resistance to match user weight
Headrest adjustment	Height and angle adjustable headrest for neck support
Lumbar support adjustment	Height-adjustable built-in lumbar support for lower back alignment
Mobility function	Smooth rolling on hard floors and low-pile carpet via dual casters
Gas lift stroke length	100 mm
Synchronized recline function	Synchronized seat and backrest recline up to 135 degrees from upright
Height-adjustable lumbar support	60 mm vertical travel built-in lumbar support for lower back alignment
Floor mobility	Smooth rolling on hard floors and low-pile carpet via dual PU casters

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 daily 8+ hour seated work for office staff
Home office workspaces	Fits standard home desks for remote work and computer use
Executive private offices	Matches professional office aesthetics for manager and executive desks
Conference room seating	Appropriate for long meetings and collaborative work sessions
Co-working shared spaces	Durable construction and universal adjustment suit varied users
Study room work areas	Suitable for student study and home computer use for extended sessions
Residential study rooms	Suitable for student study and home computer use sessions
Recommended Matching Desk Size	2.4 m executive desk

STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

EN 1335-1:2020	Applies to office work chair dimensional and safety general requirements
EN 1335-2:2018	Applies to office chair structural strength and durability testing
EN 1335-3:2009	Applies to office chair test methods for mechanical safety

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 durability requirements

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB/T 3326-2016	Applies to office furniture chair dimensional measurement and tolerance requirements
GB/T 10357.3-2015	Applies to chair strength and durability testing for office seating
GB 28007-2011	Applies to office chair safety and stability requirements

Standardized tender description text

This product must meet the following technical requirements:
1. GB/T 3326-2016: Applies to office furniture chair dimensional measurement and tolerance requirements;
2. GB/T 10357.3-2015: Applies to chair strength and durability testing for office seating;
3. GB 28007-2011: Applies to office chair safety and stability requirements;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

The High Back Black Mesh Ergonomic Office Chair (model EOCH-MESH-01) presents a streamlined, professional silhouette defined by its tall contoured backrest, integrated adjustable headrest, and cohesive all-black finish that blends seamlessly with modern interior palettes. Its layout follows proven ergonomic principles, placing core adjustment controls within easy reach while maintaining a clean, uncluttered profile suited to both formal and casual work environments. Constructed for long-term regular use, the chair features a glass-fiber reinforced nylon backrest frame upholstered in breathable black polyester mesh, paired with a seat built on a sturdy plywood inner panel. The seat is padded with high-density cold-cured molded foam and covered in black wear-resistant woven fabric, while armrests use durable PP support posts topped with soft PU pads for comfortable forearm rest. A chrome-plated steel class 3 gas lift connects the seat to a black reinforced nylon five-star base, fitted with dual-wheel casters that combine nylon structural cores with smooth PU treads for easy, low-noise movement across floor surfaces. Core functional features support comfortable extended seating: full 360-degree swivel rotation allows easy access to surrounding work areas, while pneumatic seat height adjustment controlled by a right-side lever delivers smooth vertical positioning to align with varying desk heights. The synchronized recline function tilts the backrest to a 135-degree angle from upright, with a 3-position lock to secure preferred upright, mid-recline, or full-recline positions, plus an under-seat tension knob to adjust recline resistance to match individual user preferences. Both the headrest and built-in lumbar support offer targeted adjustability, with the headrest moving for customized neck support and the lumbar component adjusting vertically to support proper lower back alignment. This chair suits a wide range of commercial and residential spaces, including open-plan office workstations for daily full-shift seated work, home office setups for remote work and computer use, executive private offices paired with manager or executive desks, conference rooms for long collaborative meetings, co-working shared spaces serving diverse user groups, and home study areas for student study and extended personal computer use. For procurement planning, note that each unit ships across two cartons, with a reference assembly time of 40 minutes per set. The chair accommodates a maximum recommended static load of 159 kg, and its durable material specifications—including abrasion-resistant backrest mesh, high-density seat foam, and long-wear casters—support consistent use across high-traffic shared environments. The universal adjustment range is designed to suit a broad spectrum of user body types, making it a flexible choice for spaces serving multiple occupants over time.

High Back Black Mesh Ergonomic Office Chair with Adjustable Headrest Specifications

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