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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 × 680 × 1310 mm
Seat width	505 mm
Seat depth	440 mm
Adjustable seat height range	540 mm
Backrest height	740 mm
Armrest height above seat	180 mm
Seat cushion thickness	70 mm
Five-star base diameter	700 mm
Headrest height above seat	740 mm
Armrest to armrest internal width	505 mm
Minimum adjusted overall height	1190 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	24 kg
Recommended user weight capacity	150 kg
Five-star base static load rating	1136 kg
Caster rolling durability	300000 cycles
Back mesh abrasion resistance	50000 Martindale cycles
Seat foam density	65 kg/m³
Seat foam rebound rate	55%
Recommended user height range	1900 mm
Warranty period	3 years
Available color options	3

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	100% polyester breathable mesh
Seat cushion core	65 kg/m³ high-resilience molded polyurethane foam
Seat upholstery	Woven polyester fabric over foam
Back frame structure	30% glass-fiber reinforced nylon
Armrest pads	Soft polyurethane padding on nylon support
Five-star base	Reinforced injection-molded nylon
Gas lift cylinder	Class 4 steel pneumatic cylinder with black powder coating
Caster wheels	60mm diameter dual-wheel hard-floor safe nylon casters
Seat mechanism	2.5mm thick steel synchro-tilt chassis
Lumbar support pad	Molded foam with mesh overlay
Headrest pad	Molded polyurethane foam with mesh facing
Seam stitch pitch	3 stitches per cm

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

Pneumatic seat height adjustment	100 mm vertical travel via Class 4 gas lift
Backrest recline function	125 degree maximum tilt with 4 lock positions
Tilt tension control	User-adjustable knob under seat to match user weight
360-degree swivel rotation	Full rotation around central gas lift axis
Height-adjustable armrests	180 mm vertical travel to match desk height
Adjustable integrated headrest	Height and angle adjustment for neck support
Contoured lumbar support	Fixed shape mid-back pad for lower spine alignment
Smooth-rolling mobility	Dual-wheel casters for hard floor and low-pile carpet
Waterfall seat edge	Rounded front seat edge to reduce leg pressure
Synchro-tilt motion	Seat tilts 1 degree for every 2.5 degrees of back recline
Multi-position tilt lock	Lock backrest in upright, mid-recline, and full-recline positions
Recline Angle / Lock Reference	125° with 3suggested lock positions

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 height office desks for daily seated work
Home office dedicated workspaces	Ergonomic support for 8+ hour daily work sessions at a home desk
Conference meeting rooms	Swivel and tilt function supports collaborative multi-directional discussion
Supervisor/private office spaces	High-back design provides appropriate support for managerial workstations
Coworking shared hot-desk areas	Durable construction and adjustable features suit diverse user groups
Computer desk gaming or study use	Lumbar and headrest support supports extended seated screen use
Adjustable standing desk workstations	Wide seat height range pairs with sit-stand desk height adjustments
Recommended Matching Desk Size	2.4 m executive desk

STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

EN 1335-1:2020	European office chair dimensional and safety requirement standard
EN 1335-2:2018	European office chair strength, durability and stability requirement standard
EN 1335-3:2009	European office chair structural testing method standard

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

ANSI/BIFMA X5.1-2017	North American general-purpose office chair safety and performance standard

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB/T 3326-2016	Office furniture dimension testing standard for chair measurement accuracy
GB 28007-2011	General safety requirement standard for office seating products

Standardized tender description text

This product must meet the following technical requirements:
1. GB/T 3326-2016: Office furniture dimension testing standard for chair measurement accuracy;
2. GB 28007-2011: General safety requirement standard for office seating products;
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 Red Padded Seat (model HB-MESH-ERGO-650R) is an unbranded task seating solution structured for prolonged seated use across professional and residential settings. Its visual profile features a tall, streamlined mesh back paired with a bold red upholstered seat, set on a five-star wheeled base that anchors a balanced, open layout suited to both formal and casual work environments. The adjustable integrated headrest sits atop the high backrest, with contoured fixed lumbar support positioned at mid-back to align the lower spine during extended use. PU-padded armrests sit at a fixed horizontal position with vertical adjustability, complementing the chair’s clean, functional aesthetic. The chair is built with a durable, performance-focused material stack: a 100% breathable polyester mesh back stretched over a 30% glass-fiber reinforced nylon frame, paired with a seat cushion cored from high-resilience molded polyurethane foam wrapped in woven red polyester fabric. Its five-star base is constructed from reinforced injection-molded nylon, supporting a Class 4 black powder-coated steel gas lift and 60mm dual-wheel hard-floor safe nylon casters. The seat mechanism uses a thick steel synchro-tilt chassis for reliable, long-term operation. Functional adjustments are designed to accommodate a wide range of user preferences, including pneumatic seat height adjustment, backrest recline with multiple lock positions, user-customizable tilt tension, full 360-degree swivel, height-adjustable armrests, and a headrest with both height and angle tuning for targeted neck support. The chair supports a recommended maximum user weight of 150kg, with durability ratings suited to frequent daily use. This chair is well suited for open-plan office workstations paired with standard 760mm height desks, private supervisor offices, conference rooms, and shared coworking hot-desk areas, as well as dedicated home office workspaces, home study setups, and computer desk use for extended screen sessions. For procurement teams, note that each unit ships in two cartons, requires assembly, and is designed to fit efficiently into standard shipping containers for bulk orders, with durable components selected to suit rotating user populations in shared spaces.

High-Back Ergonomic Mesh Office Chair with Red Padded Seat Specifications

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