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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 × 640 × 1095 mm
Backrest width	430 mm
Backrest height	570 mm
Seat width	505 mm
Seat depth	465 mm
Maximum seat height above floor	525 mm
Minimum seat height above floor	440 mm
Armrest height above seat surface	200 mm
Maximum armrest top height above floor	725 mm
Five-star base diameter	640 mm
Seat cushion thickness	80 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 product weight	19 kg
Maximum user weight capacity	136 kg
Seat foam density	45 kg/m³
Seat foam rebound rate	45 %
Mesh upholstery abrasion resistance	50000 Martindale cycles
Seam stitch pitch	8 stitches per 30 mm
Gas lift vertical stroke	85 mm
Frame warranty period	3 years
Caster rolling durability	100000 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 panel	Breathable grey polyester tension mesh
Seat upholstery	Woven grey polyester fabric over foam
Seat core padding	High-resilience polyurethane foam
Internal support frame	1.8mm thick reinforced steel seat pan
Armrest construction	Integral grey PA nylon fixed armrests
Back frame	Glass-fiber reinforced PA nylon outer frame
Five-star base	Grey nylon (PA) 5-leg caster base
Pneumatic gas lift	Class 3 steel gas lift cylinder
Casters	50mm diameter black dual-wheel nylon casters
Height adjustment lever	Black reinforced nylon actuating lever
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 activated by side lever, 85mm stroke
Swivel function	360-degree full rotation on central base bearing
Seat tilt mechanism	15-degree rearward tilt with upright position lock
Tilt tension adjustment	Rotary knob adjusts recline resistance to match user weight
Mobility	Smooth rolling on hard floors and low-pile carpet via dual-wheel casters
Lumbar support	Contoured mesh tension zone aligned to lower back curve
Arm support	Fixed-position armrests set at 200mm above seat surface
Assembly requirement	Knock-down assembly with included hardware and manual
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	Fits standard 760 mm desk height for daily desk work
Home office workspaces	Compact 635mm width suits small home study desks and work areas
Cubicle and meeting room seating	Durable mesh construction suitable for shared high-use work areas
Height-compatible user range	Suitable for users 1850 mm tall for ergonomic desk posture
Recommended desk pairing	Pair with 760 mm high fixed or height-adjustable office desks
Floor compatibility	Suitable for hard wood, tile, and low-pile carpeted office floors
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 chair safety requirement	EN 1335:2020
Office chair strength durability	EN 1335:2018
Office chair test methods	EN 1335:2009
Furniture fire safety	EN 1021:2014

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

Office chair safety standard	ANSI/BIFMA X2017
Caster performance standard	ANSI/BIFMA X2017Clause 12
Gas lift performance standard	ANSI/BIFMA X2017Clause 8
Base static load test	ANSI/BIFMA X2017Clause 5

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

Office chair dimensional recommendation	GB/T 3326
Office chair mechanical safety	GB/T 10357.3
Furniture formaldehyde emission	GB 18584
Upholstery fabric durability	GB/T 21196.2

Standardized tender description text

This product must meet the following technical requirements:
1. Office chair dimensional recommendation: GB/T 3326;
2. Office chair mechanical safety: GB/T 10357.3;
3. Furniture formaldehyde emission: GB 18584;
4. Upholstery fabric durability: GB/T 21196.2;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

Mid-Back Grey Ergonomic Mesh Office Chair with Fixed Armrests (model MESH-MID-635W-GRY) is listed under Ergonomic Office Chair. Dimensions: 635 × 640 × 1095 mm. Materials: Breathable grey polyester tension mesh. Product Features: mid-back,mesh-backed,swivel,height-adjustable,castered,fixed,armrests,lumbar-contoured. This page consolidates 6 groups of specifications and GB / EN / ANSI/BIFMA standard references, with metric and imperial units. 1 supplier(s) are listed and you can request a quote online.

Mid-Back Grey Ergonomic Mesh Office Chair with Fixed Armrests Specifications

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