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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 × 700 × 1260 mm
Seat width	500 mm
Seat depth	435 mm
Seat height range from floor	590 mm
Backrest height from seat	580 mm
Headrest height adjustment travel	155 mm
Armrest height adjustment above seat	250 mm
Five-star base diameter	700 mm
Backrest outer frame width	515 mm
Seat to top of headrest maximum height	765 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 maximum user load	136 kg
Net weight	16.1 kg
Seat foam density	35 kg/m³
Seat foam thickness	55 mm
Back foam rebound rate	40%
Foam compression set	6%
Caster rolling durability	100000 cycles
Gas lift lift cycle rating	120000 cycles
Five-star base static load rating	1136 kg
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	High-elastic breathable nylon mesh
Seat support surface	Breathable mesh with high-resilience PU foam cushion
Back frame	Glass-fiber reinforced nylon engineered frame
Headrest	Mesh-padded nylon frame with adjustable bracket
Armrest pads	Soft PU padded surface with nylon support brackets
Internal support frame	12 mm thick E1-grade bent plywood seat support
Five-star base	Glass-fiber reinforced nylon construction
Gas lift	Chrome-plated steel Class 3 gas lift
Casters	60 mm diameter silent PA+PVC universal dual-wheel casters
Chassis mechanism	3 mm thick steel synchro-tilt control plate
Seam stitch pitch	8 stitches per inch
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.

Height adjustment	Pneumatic gas lift adjusts seat height over 100 mm stroke
Headrest adjustment	155 mm vertical height travel with angle tilt adjustment
Armrest adjustment	3D adjustable with 75 mm vertical height, width and depth movement
Recline function	Synchro-tilt backrest locks in 3 positions up to 135 degrees
Swivel function	360-degree smooth rotation around central stem
Lumbar support	Contoured central lumbar zone with 40 mm height adjustment
Mobility function	Dual-wheel casters enable smooth rolling on hard floors and low-pile carpet
Tilt tension control	Rotary 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.

Carton dimensions	850 x 620 x 650 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.

Corporate office workstations	Suitable for 8+ hour daily seated work for administrative and professional staff
Home office spaces	Fits compact home work areas with breathable mesh for extended computer use
Conference and meeting rooms	Provides adjustable support for medium-length collaborative meetings
Executive management offices	High-back design offers upper back and neck support for senior staff
Shared co-working spaces	Adjustable features accommodate a wide range of user heights and sizes
IT and design workstations	Supports postural changes during long creative or technical work sessions
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 safety and performance requirements
EN 1335-2:2018	Applies to office chair structural strength and durability testing
EN 1335-3:2020	Applies to office chair stability and safety performance 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 durability, strength and stability 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 seating dimensional tolerance and measurement
GB/T 10357.3-2013	Applies to mechanical performance testing for office chair strength and durability
GB 18584-2001	Applies to limit of harmful substances in wooden furniture components
GB/T 26172.1-2010	Applies to caster durability and performance testing for swivel chairs

Standardized tender description text

This product must meet the following technical requirements:
1. GB/T 3326-2016: Applies to office furniture seating dimensional tolerance and measurement;
2. GB/T 10357.3-2013: Applies to mechanical performance testing for office chair strength and durability;
3. GB 18584-2001: Applies to limit of harmful substances in wooden furniture components;
4. GB/T 26172.1-2010: Applies to caster durability and performance testing for swivel 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 and 3D Armrests, model EOCH-MESH-700HB, is an unbranded seating solution built for consistent, supportive use across professional and personal work environments. Its sleek, streamlined silhouette features a tall, contoured backrest paired with a structured five-star caster base, creating a balanced visual profile that fits both modern and traditional workspace aesthetics without appearing overly bulky.
Constructed for long-term durability, the chair combines a steel-reinforced internal structure with a glass-fiber reinforced nylon back frame and five-star base, plus a 12mm thick E1-grade bent plywood seat support for stable weight distribution. The backrest is upholstered in high-elastic breathable nylon mesh, while the seat pairs breathable mesh with a high-resilience PU foam cushion. Armrests feature soft PU padded surfaces on nylon support brackets, and the mesh-padded headrest is mounted on an adjustable bracket. A chrome-plated steel Class 3 gas lift and 60mm silent PA+PVC universal dual-wheel casters complete the core build.
The chair delivers a full suite of adjustable features to support varied postures: pneumatic seat height adjustment operates over a 100mm stroke, the headrest offers 155mm of vertical travel plus angle tilt, and 3D armrests move across 75mm of vertical height as well as width and depth positions. The synchro-tilt backrest locks in three positions up to 135 degrees, with 360-degree smooth swivel, a contoured central lumbar support with 40mm of height adjustment, and casters that roll smoothly on hard floors and low-pile carpet. It supports a recommended maximum user load of 136kg.
This chair is suited for corporate office workstations for 8+ hours of daily seated work for administrative and professional staff, compact home office spaces, medium-length conference and meeting room use, executive offices where high-back neck and upper back support is preferred, shared co-working spaces where adjustable features accommodate diverse user sizes, and IT or design workstations that support frequent postural shifts during long creative or technical sessions.
For procurement, note that each unit ships in two cartons, requires 40 minutes of assembly per set, and has a packaged gross weight of 23kg, making it straightforward to schedule delivery and installation for both single home office setups and bulk workplace rollouts.

High-Back Ergonomic Mesh Office Chair with Adjustable Headrest and 3D Armrests Specifications

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