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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)	620 × 670 × 1240 mm
Seat width	490 mm
Seat depth	420 mm
Seat height range (seat to floor)	670 mm
Backrest width	450 mm
Backrest height (seat to top of back)	530 mm
Seat cushion thickness	60 mm
Armrest height above seat	180 mm
Armrest-to-armrest outer width	580 mm
Five-star base total width	620 mm
Headrest width	285 mm
Headrest height above seat (max extended)	510 mm
Total height without headrest extended	1160 mm
Finished Seat Cushion Thickness	90 mm
Backrest Padding Thickness	70 mm
Lumbar Support Zone Height	240 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
Chair net weight	15 kg
Seat foam density	45 kg/m³
Seat foam rebound rate	40%
Mesh backrest breathability rating	Grade 4 air permeability
Seam stitch pitch	10 stitches per 30mm
Upholstery abrasion resistance	100000 rub cycles
Gas lift rated lifecycle	120000 up/down cycles
Caster rolling durability	100000 roll cycles
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	Tensioned breathable woven polyester mesh
Backrest frame	Nylon (PA6) with 20% glass fiber reinforcement
Seat cushion core	Cold-cured high-density polyurethane foam
Seat upholstery surface	Woven black fabric over foam cushion
Armrests	Integral molded black polypropylene fixed loop armrests
Headrest upholstery	Curved breathable mesh panel with molded nylon frame
Five-star base	Molded black nylon (PA) 5-prong swivel base
Gas lift column	Black powder-coated steel Class 3 gas lift
Caster wheels	60mm diameter black polyurethane (PU) dual-wheel casters
Tilt mechanism	3mm thick stamped steel chassis with tension adjust
Internal seat support plate	12mm thick molded plywood seat board
Seat Internal Support Board Thickness	14 mm bent plywood or equivalent support board

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

Seat height adjustment	Pneumatic height adjustment via right-side lever, 100mm stroke
Backrest tilt function	1-position lockable recline with tension adjustment, 12° recline angle
360-degree swivel	Full rotation around central gas lift column for easy positioning
Headrest adjustment	Height-adjustable curved headrest with 80mm vertical travel
Lumbar support	Integrated contoured lumbar support molded into backrest frame
Smooth mobility	Dual-wheel PU casters roll on hard floors and low-pile carpet
Fixed arm support	Fixed-height loop armrests provide stable forearm support during typing
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.

Open-plan office workstations	Suits daily 8-hour desk work for administrative and clerical staff
Home office study spaces	Compact 620mm base fits small home desk footprints without clutter
Meeting and conference rooms	Uniform black finish and simple design match standard conference room decor
Training room seating	Durable mesh construction withstands regular multi-user turnover
Student dormitory study areas	Height adjustment fits varying desk heights for student use
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

EN 1335-1:2020	Applies to office work chair dimensional and structural safety requirements
EN 1335-2:2018	Applies to office chair mechanical performance and stability testing
EN 1021-1:2014	Applies to upholstered furniture ignition resistance (smoldering cigarette)

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 criteria

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB/T 3326-2016	Applies to office chair dimensional accuracy and stability testing requirements
GB/T 10357.3-2013	Applies to office chair mechanical strength and durability test methods
GB 18584-2001	Applies to furniture formaldehyde emission limits for indoor use

Standardized tender description text

This product must meet the following technical requirements:
1. GB/T 3326-2016: Applies to office chair dimensional accuracy and stability testing requirements;
2. GB/T 10357.3-2013: Applies to office chair mechanical strength and durability test methods;
3. GB 18584-2001: Applies to furniture formaldehyde emission limits for indoor use;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

The Ergonomic Mesh Office Chair with Adjustable Headrest and Fixed Armrests, model EMOC-FA-620H, is an unbranded professional seating solution designed for long-duration use across diverse work and study environments. Presented in a uniform matte black finish, the chair features a streamlined silhouette defined by a contoured tensioned mesh backrest, smoothly curved height-adjustable headrest, integrated fixed loop armrests, and a stable five-prong base. Its compact footprint aligns with standard workstation dimensions, creating a neat, unobtrusive profile that blends with both modern and traditional interior schemes without visual clutter. Built for consistent heavy use, the chair combines durable, purpose-selected materials: the backrest uses tensioned breathable woven polyester mesh set in a nylon frame reinforced with 20% glass fiber, paired with a cold-cured high-density polyurethane foam seat core wrapped in woven black fabric, topped with a 60mm thick cushion for even weight distribution. The fixed armrests are molded as integral black polypropylene loops, while the base is formed from rigid molded nylon, supporting a Class 3 black powder-coated steel gas lift and 60mm dual-wheel polyurethane casters. Construction details include uniform seam stitching at 10 stitches per 30mm, and upholstery tested to withstand 100000 rub cycles, with a Grade 4 air permeability rating for the mesh backrest to support consistent airflow during extended sitting. Core functional features support ergonomic comfort and ease of use: a right-side lever controls pneumatic seat height adjustment with 100mm of travel, while the backrest offers a 1-position lockable 12° recline with adjustable tension, plus integrated contoured lumbar support molded directly into the backrest frame. The curved mesh headrest adjusts vertically across 80mm of travel to support the neck, fixed-height armrests deliver stable forearm support for typing tasks, 360-degree swivel enables easy repositioning, and smooth-rolling dual-wheel casters move seamlessly across hard floors and low-pile carpet. The chair supports a maximum user weight of 150kg, with a 40% rebound rate for the 45kg/m³ density seat foam to maintain cushion integrity over time. This model is suited for a wide range of spaces, including open-plan office workstations for daily 8-hour administrative and clerical desk tasks, compact home office studies where its narrow 620mm footprint fits small desk arrangements, formal meeting and conference rooms where its simple black finish aligns with standard decor, high-turnover training rooms where durable mesh construction resists frequent multi-user use, and student dormitory study areas where height adjustment accommodates varying desk heights. It pairs optimally with a 2.4m executive desk for coordinated workspace layout. For procurement planning, note that each unit ships in two cartons, requires 40 minutes of assembly per set, and has a packaged gross weight of 23kg per set, with a total carton volume of 0.26 cubic meters. A 20-foot general purpose container can hold 135 sets at 85% space utilization, supporting efficient bulk ordering for large workspace fit-outs.

Ergonomic Mesh Office Chair with Adjustable Headrest and Fixed Armrests Specifications

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