Name: Mid-Back Mesh Office Task Chair with Padded Fabric Seat
Brand: GUOYOU
SKU: 285Y2H

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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)	620 × 600 × 1010 mm
Seat width	500 mm
Seat depth	480 mm
Seat height adjustment range maximum	540 mm
Backrest width	480 mm
Backrest height	520 mm
Armrest height from seat	200 mm
Five-star base diameter	600 mm
Caster diameter	50 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 weight	120 kg
Net weight reference	13 kg
Seat foam density	45 kg/m³
Backrest mesh tensile strength	200 N/cm
Caster rolling durability cycles	100000 cycles
Gas lift static load rating	150 kg
Five-star base static load rating	1000 kg
Seam tensile strength	120 N/50mm
Seat Foam Density / Rebound Reference	45 kg/m³ / 65%
Back Foam Density Reference	38 kg/m³

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 knitted mesh fabric with integrated lumbar support pad
Seat cushion	Molded high-density polyurethane foam wrapped in woven fabric upholstery
Backrest frame	Reinforced plastic frame with blue edge trim
Armrests	Matte white plastic arm pads mounted on silver metal supports
Gas lift cylinder	Chrome-plated steel pneumatic lifting cylinder
Five-star base	Polished chrome-plated steel five-prong base with reinforced rib structure
Casters	Black nylon twin-wheel casters with chrome-plated mounting brackets
Seat base board	Plywood or composite load-bearing board under foam cushion
Tilt mechanism	Steel plate tilt mechanism with tension adjustment
Base center hub	Black nylon plastic central hub connecting five-star base to gas lift, with tapered fitting for secure attachment
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 height adjustment via right-side control lever, 100 mm total vertical stroke
Swivel function	360-degree full rotation around central gas lift axis
Backrest tilt	Synchronized seat-back tilt with adjustable tension, up to 15 degrees of recline angle
Fixed armrest support	Fixed-position T-shaped armrests at 200 mm above seat level, providing forearm support during typing
Integrated lumbar support	Contoured central lumbar pad built into mesh backrest, positioned at lower back height
Mobility on hard floors	Five twin-wheel nylon casters designed for smooth rolling on hard office floors
Breathable back ventilation	Open mesh backrest structure allows continuous air circulation to prevent heat buildup
Gas lift stroke	100 mm
Hard floor mobility	Five twin-wheel nylon casters designed for low-resistance rolling on hard office floors (tile, wood, laminate), 50 mm wheel diameter for smooth movement over small gaps
Back ventilation	Open porous mesh backrest structure allows continuous air circulation across the entire back contact area, reducing heat and moisture buildup during long sitting sessions
Tilt tension adjustment	Rotary tension knob under seat adjusts tilt resistance, accommodating user weights from 50 kg to 120 kg for personalized recline feel
Recline Angle / Lock Reference	125° with 3 suggested lock positions

PRODUCT MODULE 05 / 06

Packaging & Logistics

Verified carton / gross weight / assembly / loading data

Data source: Reference for export quotations and container planning.

Packing configuration	1 chair per carton, flat packed in knock-down form
Carton dimensions	650 x 580 x 320 mm
Gross weight per carton	15 kg
Volume per carton	0.121 CBM
Assembly time	30 minutes
20ft container loading quantity	260 units
Warranty period	2 years
Reference Package Count	1 set / 2 cartons
Reference Assembly Time	40 minutes per set
Reference Carton Dimensions	850× 420× 720 mm

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	Suitable for 1600 mm wide standard office desks, supporting 8-hour daily office work
Staff workstations and call centers	Recommended for high-occupancy commercial office spaces with daily multi-shift use
Meeting and conference rooms	Appropriate for conference table seating with 740 mm standard table height
Home office and study rooms	Suitable for home desks 760 mm high for remote work and study tasks
Computer workstations and IT desks	Ideal for keyboard-intensive work with fixed forearm support from armrests
Temporary visitor seating	Suitable for reception areas and visitor zones adjacent to workstations, for short 1 to 2 hour sitting periods
Training rooms and co-working spaces	Recommended for flexible multi-purpose training rooms with movable desks, supporting frequent rearrangement
Recommended Matching Desk Size	2.4 m executive desk

STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

Office chair safety and strength	Applicable to EN 1335:2009 Office furniture - Office chairs - Part 1: Safety requirements
Office chair dimensions and ergonomics	Applicable to EN 1335:2009 Office furniture - Office chairs - Part 2: Dimensions - Determination of dimensions
Office chair strength and durability testing	Applicable to EN 1335:2009 Office furniture - Office chairs - Part 3: Test methods for the determination of strength and durability
Office chair safety requirements	Applicable to EN 1335:2009 Office furniture - Office chairs - Part 1: Safety requirements
Office chair dimension determination	Applicable to EN 1335:2009 Office furniture - Office chairs - Part 2: Dimensions - Determination of dimensions
Office chair strength and durability test methods	Applicable to EN 1335:2009 Office furniture - Office chairs - Part 3: Test methods for the determination of strength and durability

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

Office chair general safety standard	Applicable to ANSI/BIFMA X2017 General Purpose Office Chairs - Tests
Seat and backrest cyclic durability	Applicable to ANSI/BIFMA X2017 Clause 8 and 9 cyclic load tests
General purpose office chair safety standard	Applicable to ANSI/BIFMA X2017 General Purpose Office Chairs - Tests
Caster and base performance	Applicable to ANSI/BIFMA X2017 Clause 11 and 12 Base and caster tests

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

Seat surface strength and stability	Applicable to GB/T 10357.3 Furniture mechanical performance test for chairs and stools
Backrest strength and durability	Applicable to GB/T 10357.3 Clause 5 backrest load test
Chair seat strength and stability	Applicable to GB/T 10357.3 Furniture - Mechanical and structural properties of tables, chairs and stools - Part 3: Chairs and stools

Standardized tender description text

This product must meet the following technical requirements:
1. Seat surface strength and stability: Applicable to GB/T 10357.3 Furniture mechanical performance test for chairs and stools;
2. Backrest strength and durability: Applicable to GB/T 10357.3 Clause 5 backrest load test;
3. Chair seat strength and stability: Applicable to GB/T 10357.3 Furniture - Mechanical and structural properties of tables, chairs and stools - Part 3: Chairs and stools;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

GUOYOU OC-MB-001 is a mid-back mesh office task chair with a padded fabric seat, designed to balance ergonomic support, breathable comfort, and functional mobility for varied seating scenarios. Its visual form features a streamlined silhouette with a breathable knitted mesh backrest framed by reinforced plastic with blue edge trim, paired with a fabric-upholstered seat, matte white plastic arm pads on silver metal supports, and a polished chrome-plated steel five-star base with black twin-wheel casters, creating a clean, modern look suitable for professional and personal workspaces. Constructed for durable dly use, the chair’s backrest combines open mesh fabric with an integrated contoured lumbar pad and a rigid supporting frame, while the seat uses molded high-density polyurethane foam wrapped in woven upholstery, with a load-bearing internal support board beneath the cushion. The pneumatic height adjustment relies on a chrome-plated steel gas lift cylinder, and the base incorporates a reinforced rib structure for structural stability, paired with a steel plate tilt mechanism under the seat. All load-bearing components are engineered to meet standard commercial seating strength requirements. Practical functions center on ergonomic adaptability and ease of use. Pneumatic seat height adjustment operates via a right-side control lever, accommodating standard desk heights. A synchronized seat-back tilt system with adjustable tension allows controlled recline, with an upright lock for focused work, while fixed T-shaped armrests provide consistent forearm support for typing tasks. The 360-degree swivel and smooth-rolling nylon casters enable easy movement across hard floor surfaces, and the open mesh backrest promotes continuous r circulation to reduce heat and moisture buildup during extended sitting. The integrated lumbar pad targets lower back support to minimize fatigue from prolonged seated work. This chair fits a wide range of commercial and residential spaces. It works well in open-plan office workstations, staff areas, and call centers, where its mid-back height fits under low desk partitions without obstructing sightlines and its breathable design supports long dly use. It is also appropriate for conference and meeting rooms, where full swivel supports easy interaction during group discussions, and for training rooms and co-working spaces, where its lightweight design allows convenient repositioning. For residential use, it suits home offices and study rooms with standard desk heights, as its compact base fits well in smaller floor plans. It also serves as functional temporary seating in reception and visitor zones. For procurement planning, the chair ships flat packed in knock-down form for efficient storage and transport, with a 2-year warranty covering structural components. Procurement teams should note that caster type can be customized for carpeted floor use if required, and should confirm exact material specifications and load ratings directly with the supplier for mission-critical or heavy-use commercial deployments.

Mid-Back Mesh Office Task Chair with Padded Fabric Seat Specifications

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