Name: Mid-Back Fixed Armrest Ergonomic Mesh Office Chair
Brand: YUXIANG
SKU: 4XELQE

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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)	650 × 690 × 1055 mm
Seat width	490 mm
Seat depth	430 mm
Maximum seat height (floor to seat top)	515 mm
Minimum seat height (floor to seat top)	415 mm
Backrest height	550 mm
Backrest width	420 mm
Seat cushion thickness	60 mm
Armrest height above seat	180 mm
Five-star base diameter	640 mm
Caster diameter	55 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 user weight capacity	125 kg
Net weight per chair	12 kg
Tilt rocking angle	12 degrees
Gas lift adjustment stroke	100 mm
Gas lift cycle durability	100000 cycles
Seat static load capacity	160 kg
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
Five-star Base Static Load Reference	Acceptance target ≥120 kg; chair reference load 150 kg

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-tension polyester breathable mesh
Backrest support frame	Glass-fiber reinforced polypropylene
Seat cushion core	40 kg/m³ high-density molded polyurethane foam
Seat upholstery	Wear-resistant polyester fabric
Armrest construction	Fixed T-shaped polypropylene armrests with flat contact pads
Five-star base	Injection-molded glass-fiber reinforced nylon
Gas lift cylinder	Class 2 black steel gas lift with 50mm outer tube diameter
Tilt mechanism	2mm thick cold-rolled steel plate with single-position lock
Casters	55mm diameter hard PA nylon swivel casters
Seat Internal Support Board Thickness	14 mm bent plywood or equivalent support board
Backrest Internal Frame Thickness	14 mm bent plywood/composite reinforced frame
Five-star Base Material Thickness	Metal base wall 3.5 mm; diameter 700 mm

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

Seat height adjustment	Pneumatic 100mm stroke adjustment via right-side under-seat lever, locks at any set height
360-degree swivel rotation	Full rotation around central gas lift axis for easy workstation access
Backrest tilt rocking	Synchronized tilt with manual tension adjustment, locks in upright position
Fixed lumbar support	Contoured curved mesh panel at lower back provides consistent support
Smooth rolling mobility	Twin-wheel casters roll on hard floors and low-pile carpet, no locking brake
Fixed armrest support	Rigid armrests provide 180mm of upper arm support at fixed height
Breathable back ventilation	Open mesh back prevents heat buildup during extended sitting
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	Compact 650mm width fits standard partitioned office desks for employee task seating
Home office study spaces	Light gray neutral finish matches modern home desks for remote work use
Conference and meeting rooms	Mid-back design provides upright support for short to medium duration meetings
Reception and waiting areas	Breathable mesh and rolling base support flexible, guest-friendly seating arrangements
Call center and shared desk environments	Durable construction and easy-clean fabric suit high-turnover multi-user settings
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 performance
EN 1335-2:2018	Applies to office chair structural strength, stability and durability testing
EN 1335-3:2009	Applies to office chair test methods for mechanical performance

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
Caster rolling durability	100000 cycles

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 office chair mechanical strength and durability testing
GB 18584-2001	Applies to formaldehyde emission limits for wooden/fabric furniture components

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 office chair mechanical strength and durability testing;
3. GB 18584-2001: Applies to formaldehyde emission limits for wooden/fabric furniture components;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

The YUXIANG Mid-Back Fixed Armrest Ergonomic Mesh Office Chair, model OFM-FX-650GY, delivers a balanced blend of supportive comfort and practical durability for commercial and home work settings. Its streamlined, professional silhouette features a 650mm overall width, with a 420mm wide, 550mm tall mesh backrest paired with a fixed T-shaped polypropylene armrest design that offers stable upper arm support without excess visual bulk, fitting neatly alongside standard and oversized work surfaces. Constructed for long-term regular use, the chair uses high-tension polyester breathable mesh for the backrest, stretched over a glass-fiber reinforced polypropylene frame that holds a contoured curved panel to deliver consistent built-in lumbar support. The seat features a 60mm thick core of high-density molded polyurethane foam wrapped in wear-resistant polyester fabric for easy upkeep. Its base is built from injection-molded glass-fiber reinforced nylon, paired with a Class 2 black steel gas lift, a 2mm thick cold-rolled steel tilt mechanism with single-position lock, and 55mm hard PA nylon twin-wheel swivel casters. The chair supports a 125kg recommended user weight, with a 160kg seat static load capacity and gas lift tested to 100000 adjustment cycles. Functional features include 100mm pneumatic seat height adjustment that locks at any preferred height between 415mm and 515mm, 360-degree swivel for unobstructed access to adjacent workstation surfaces, synchronized back tilt with 12 degrees of rocking motion, manual tension control, and an upright position lock. The open mesh backrest prevents heat buildup during extended sitting, while casters roll smoothly across hard floors and low-pile carpet without locking brakes for flexible repositioning. This model suits a wide range of spaces: it fits compact open-plan office workstations with standard partitioned desks, pairs well with modern home study desks for remote work, provides upright support for conference and meeting room use, enables flexible guest seating in reception areas, and stands up to high-turnover shared use in call centers. It is designed to match 2.4m executive desks as well. Procurement teams should note the chair ships in knock-down construction across two cartons per set, requires 40 minutes of assembly per unit, and allows for efficient bulk shipping with 135 sets fitting in a 20GP container at 85% space utilization. The light gray neutral finish coordinates with most existing workspace decor schemes.

Mid-Back Fixed Armrest Ergonomic Mesh Office Chair Specifications

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