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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)	685 × 700 × 1205 mm
Seat width	505 mm
Seat depth	460 mm
Seat height range from floor	520 mm
Backrest width	430 mm
Backrest height from seat surface	570 mm
Headrest width	315 mm
Headrest height adjustment travel	60 mm
Armrest height above seat surface	265 mm
Five-star base footprint diameter	700 mm
Armrest pad top height from floor (max)	710 mm
Seat surface height from floor (lowest)	435 mm
Headrest top height from seat (max)	625 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 maximum user weight	150 kg
Net weight	20 kg
Caster rolling durability	100000 cycles
Gas lift lift cycle rating	120000 cycles
Seat foam density	45 kg/m³
Mesh abrasion resistance	50000 Martindale cycles
Seam stitch pitch	8 stitches per 30mm
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 surface	Breathable polyester PA mesh
Seat cushion core	Molded high-resilience polyurethane foam
Internal back frame	3mm thick glass-fiber reinforced PA nylon
Five-star base	1.8mm thick chrome-plated steel
Gas lift column	50mm diameter Class 4 steel gas lift
Armrest pads	Soft PU padded surface with PP support structure
Casters	50mm diameter PU universal twin casters
Headrest padding	20mm thick soft foam with mesh outer cover
Control mechanism chassis	2.5mm thick stamped steel plate
Seat Internal Support Board Thickness	14 mm bent plywood or equivalent support board
Backrest Internal Frame Thickness	14 mm bent plywood/composite reinforced frame
Tilt Mechanism Plate Thickness	2.5 mm cold-rolled steel

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

Seat height adjustment	100mm vertical travel via gas lift lever under seat
Headrest adjustment	60mm vertical lift to match neck height
Armrest adjustment	80mm vertical height adjustment to match desk height
Back recline function	135° lockable synchro-tilt with tension control
360° swivel rotation	Full rotating seat and back via central swivel joint
Integrated rear coat hanger	Curved hook at top of back frame for hanging outerwear
S-curve lumbar support	Contoured fixed lumbar zone for lower back alignment
Smooth caster mobility	Free rolling on all hard and soft office floor surfaces
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.

Packed carton dimensions	750 × 650 × 500 mm
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	Fits standard 750mm height office desks for daily seated work
Home office computer desks	Adjustable height and armrests suit long hours of remote work
Meeting room seating	Swivel and recline functions support collaborative discussion use
Staff task seating	Breathable mesh back maintains comfort during full-shift use
Hot-desking shared workspaces	Universal adjustment fits a wide range of user body sizes
Executive private offices	Grey neutral finish and coat hanger add functional utility
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 chair dimensional safety and ergonomic requirements
EN 1335-2:2018	Applies to office chair structural strength and stability performance
EN 1335-3:2009	Applies to office chair test methods for safety verification

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
GB/T 10357.3-2013	Applies to chair strength and durability mechanical performance testing
GB 18584-2001	Applies to furniture harmful substance 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;
2. GB/T 10357.3-2013: Applies to chair strength and durability mechanical performance testing;
3. GB 18584-2001: Applies to furniture harmful substance 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 Grey Mesh Ergonomic Office Chair, model ERG-OFC-685GRY, is an unbranded ergonomic seating solution designed for versatile professional and residential work environments. Its neutral grey finish and streamlined, purpose-driven form present a polished, understated aesthetic that integrates seamlessly with a wide range of interior design schemes. The chair features a contoured S-curve backrest, padded height-adjustable headrest, and a discreet integrated curved coat hanger positioned at the top of the back frame, balancing subtle visual appeal with built-in utility without unnecessary decorative flourishes.
Constructed for long-term regular use, the chair pairs a breathable polyester PA mesh backrest with a molded high-resilience polyurethane foam seat, supported by a glass-fiber reinforced PA nylon internal back frame and 2.5mm thick stamped steel control chassis. The five-star base is crafted from 1.8mm thick chrome-plated steel, fitted with 50mm diameter PU universal twin casters for smooth movement across floor surfaces. A 50mm diameter Class 4 steel gas lift supports height adjustments, while armrests feature soft PU padding over a PP support structure, and the headrest is finished with 20mm thick soft foam wrapped in matching mesh outer material. All core components are engineered to meet consistent use demands, with performance ratings aligned to extended daily seating cycles.
Practical functionality is centered on adaptable ergonomic support for varied users and tasks. The seat offers 100mm of vertical height adjustment via an under-seat lever, the headrest adjusts 60mm vertically to align with different neck heights, and armrests move 80mm vertically to match standard desk heights. The backrest supports 135° lockable synchro-tilt with adjustable tension control, alongside full 360° swivel rotation for easy reach across work surfaces. A fixed contoured lumbar zone maintains lower back alignment, while the breathable mesh back prevents heat buildup during extended seated periods, and the integrated rear coat hanger offers convenient storage for outerwear within easy reach.
This chair is suitable for a broad range of spaces, including open-plan office workstations paired with standard 750mm height desks, home office computer desks for remote work, meeting rooms for collaborative discussion, staff task seating for full-shift use, shared hot-desking environments that serve diverse user groups, and executive private offices where the neutral finish and added coat hanger utility provide refined functional value.
For procurement planning, each unit ships across two cartons, with a total packaged gross weight of 23kg per set, and requires 40 minutes of assembly time per unit. The chair supports a maximum recommended user weight of 150kg, and its universal adjustment range accommodates a wide spectrum of body types, making it a flexible choice for spaces serving multiple rotating or permanent users. The neutral grey colorway coordinates with most existing office furniture palettes, reducing the need for coordinated decor overhauls when updating seating inventories.

Grey Mesh Ergonomic Office Chair with Adjustable Headrest and Coat Hanger Specifications

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