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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 × 620 × 1010 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	136 kg
Chair net weight	15 kg
Seat foam density	45 kg/m3 molded polyurethane foam
Seat foam rebound	40%
Back mesh tensile rating	250 N per 50 mm strip
Gas-lift vertical load rating	150 kg static load
Base static load rating	1134 kg
Caster rolling durability	100000 cycles
Seat sliding durability	100000 cycles
Recommended occupant height range	1550 to 1900 mm

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 mesh	Taupe woven polyester mesh over a black contoured polymer frame
Back support frame	Black glass-fiber-reinforced polymer lumbar frame with molded side contours
Seat upholstery	Blue woven polyester fabric over foam with stitched perimeter seam
Seat cushion	75 mm molded polyurethane foam with rounded waterfall front
Seat inner support	12 mm molded plywood or engineered composite seat board
Arm pads	Soft-touch polyurethane or polymer pads on silver-gray supports
Arm supports	Silver-gray painted die-cast aluminum or reinforced nylon support brackets
Center mechanism	Black steel tilt mechanism with polymer lever and housing
Gas lift	Chrome-plated steel telescopic cylinder with black polymer telescopic shroud
Five-star base	Polished die-cast aluminum alloy five-star base with reflective finish
Casters	Black nylon twin-wheel swivel casters, five pieces
Fasteners and linkage	Zinc-plated steel bolts, axles, and torsion hardware

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 provides 100 mm height travel through the visible right-side lever
Swivel function	360-degree swivel around the central gas-lift axis
Back recline	Synchronized tilt movement from 95 degrees upright to 115 degrees reclined
Tilt tension control	Under-seat rotary tension knob adjusts resistance for users up to 136 kg
Mobility	Five 60 mm twin-wheel casters enable omnidirectional movement on hard floors and low-pile carpet
Lumbar support	Contoured flexible mesh zone gives passive lumbar and lateral back support
Front-edge pressure relief	Rounded waterfall cushion front reduces pressure behind the knees
Recline lock	One-position upright lock with free-float tilt mode
Floor protection	Hard tread nylon wheels with load-distributing twin-wheel design
Back-to-seat recline travel	95 to 115 degrees
Recline Angle / Lock Reference	125° with 3suggested lock positions
Tilt Tension User-weight Range	Reference adjustment coverage 120 kg

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 workstation	Use at 1200 to 1600 mm desks for daily computer work and 4 to 8 hour seated tasks
Executive or manager office	Pair with a wood or metal executive desk where blue and taupe upholstery provides a restrained commercial look
Home office	Suitable for a dedicated home desk in a study or bedroom corner due to compact 650 mm footprint
Meeting or conference room	Use as a mobile visitor or task chair around conference tables with 720 to 750 mm height
Co-working space	Suitable for hot desks because the 360-degree swivel, casters, and gas lift adapt to different users
Reception or administrative counter	Use behind standard-height reception desks where staff alternate between computer and guest-facing tasks
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 16139 suitability	Strength, durability, and safety requirements for non-domestic seating
EN 1022 suitability	Chair stability test reference for front, rear, and side tipping assessment
EN 12529 suitability	Castor test standard for swivel chairs and their wheel attachments
EN 1335-1 suitability	Office chair dimensions and safety geometry reference for task seating
EN 1335-2 suitability	Safety requirements for office work chairs, including structural performance
EN 1335-3 suitability	Test methods for office work chairs, including strength and durability

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

ANSI/BIFMA X5.1 Office Chairs suitability	Back, seat, base, arm, tilt, and fatigue tests for commercial office chairs

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB/T 10357.3 suitability	Furniture mechanical test for chair strength and durability; use for backrest, seat, and arm load acceptance
GB/T 3324 suitability	General technical requirements for wooden furniture; use if the hidden seat board contains wood components
GB 18584 suitability	Indoor wooden-furniture limited-emission requirement; use for formaldehyde acceptance on wood-based board
GB/T 2960 suitability	Castor durability test reference for chair wheels and swivel attachments

Standardized tender description text

This product must meet the following technical requirements:
1. GB/T 10357.3 suitability: Furniture mechanical test for chair strength and durability; use for backrest, seat, and arm load acceptance;
2. GB/T 3324 suitability: General technical requirements for wooden furniture; use if the hidden seat board contains wood components;
3. GB 18584 suitability: Indoor wooden-furniture limited-emission requirement; use for formaldehyde acceptance on wood-based board;
4. GB/T 2960 suitability: Castor durability test reference for chair wheels and swivel attachments;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

The Mid-Back Mesh Ergonomic Office Chair, model OFM-MB650-BLU, presents a contemporary task-chair profile with a taupe woven polyester mesh back set within a black contoured polymer frame. Its blue woven polyester seat is finished with a stitched perimeter seam, while soft-touch polymer arm pads and silver-gray supports add a restrained commercial contrast. The five-star polished aluminum alloy base, chrome-plated gas lift, painted and chromed steel supports, and black tilt mechanism create a structured visual balance suitable for both modern office and residential settings. Construction emphasizes layered support. The back uses a black glass-fiber-reinforced polymer lumbar frame with molded side contours and a flexible mesh support zone. The seat combines 75 millimeter molded polyurethane foam with a rounded waterfall front, blue woven polyester upholstery, and a molded plywood or engineered composite inner support board. Specification details list a finished cushion thickness of 90 millimeters, 45 kilogram per cubic meter molded foam, and 40 percent rebound. Polymer arm pads are mounted on silver-gray painted die-cast aluminum or reinforced nylon brackets. A black steel tilt mechanism, chrome-plated telescopic gas cylinder, black polymer shroud, polished aluminum alloy base, and nylon twin-wheel casters complete the assembly. Functionally, the chair supports pneumatic seat-height adjustment through a visible right-side lever, with 100 millimeters of travel, and provides 360-degree swivel around the central gas-lift axis. The synchronized tilt moves from a 95-degree upright position to a 115-degree reclined position, while an under-seat rotary tension knob adjusts resistance for users within the stated 136 kilogram recommended user weight capacity. Passive lumbar and lateral support come from the contoured flexible mesh zone, and the waterfall seat front is intended to reduce pressure behind the knees. Five 60 millimeter twin-wheel casters support omnidirectional movement on hard floors and low-pile carpet. The chair is appropriate for open-plan workstations, executive or manager offices, home studies, meeting and conference rooms, co-working hot desks, and reception or administrative counters. Its blue and taupe palette pairs cleanly with wood or metal desks, and its compact 650 by 620 millimeter footprint helps it fit dedicated home-office corners as well as shared commercial floors. Procurement teams should note that each set ships in two cartons, with packaged gross weight of 23 kilograms and reference assembly time of 40 minutes. The stated load ratings include a 150 kilogram static gas-lift rating, 1134 kilogram static base rating, and 250 newton back-mesh tensile rating per 50 millimeter strip. Buyers should also confirm armrest clearance, desk height, floor type, delivery access, assembly allocation, and replacement or maintenance terms before volume ordering.

Mid-Back Mesh Ergonomic Office Chair Specifications

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