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Mid-Back Mesh Swivel Task Chair with Blue Seat Specifications

OFM-MID-BLUE-01Code:288SBJV1

Mid-Back Mesh Swivel Task Chair with Blue Seat (model OFM-MID-BLUE-01) is listed under Mesh Office Chair. Dimensions: 650 × 620 × 1010 mm. Materials: Grey flexible mesh with woven vertical texture. Load capacity: 136 kg. Product Features: Mid-back,chair,mesh,back,swivel,base,fixed,armrests,padded,seat,mobile,task,seating. 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.

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2026-11-03 20:03Popularity: 4
BrandJIULONGYOUSHENGModelOFM-MID-BLUE-01
Overall dimensions (W × D × H)650 × 620 × 1010 mmFinished Seat Cushion Thickness90 mm
Backrest Padding Thickness70 mmLumbar Support Zone Height240 mm
Clear Width Between Armrests540 mmRecommended user weight capacity136 kg
Chair net weight15 kgSeat foam density45 kg/m3
Seat foam rebound rating40%Back mesh static loading target136 kg
Base static-load target1134 kgGas-lift cycle target100,000 height-adjustment cycles
Caster rolling durability target100,000 cyclesSeat-slide tilt mechanism durability target300,000 cycles
Seat Foam Density / Rebound Reference45 kg/m³ / 65%Backrest support fabricGrey flexible mesh with woven vertical texture
Back frameDark grey molded polymer perimeter frame supporting the mesh panelSeat upholsteryDark blue woven textile over a padded seat pan
Seat cushionCut polyurethane foam with a 70 mm thick rounded front profileSeat inner shell12 mm thick molded plywood or polymer load-distributing seat board
Arm padsLight grey polymer pads with smooth matte contact surfaceArm support frameLight grey painted steel or die-cast support loop connected beneath the seat
Tilt mechanismBlack steel plate mechanism with side operating leverGas liftBlack and polished steel telescoping gas lift, 50 mm outer diameter
Five-star basePolished aluminum-alloy five-spoke swivel baseCastersBlack polyurethane twin-wheel casters with swivel stems
Fasteners and hingesSteel bolts, washers, and hinge pivots with black oxide or zinc finishSwivel function360-degree full rotation around the central gas-lift axis
Seat height adjustmentPneumatic lift with 100 mm travel controlled by the visible side leverBack reclineSynchronized tilt with a 12-degree backward recline from the upright position
Tilt tension controlRear rotary knob adjusts recline resistance for user weights up to 136 kgTilt lockOne-position upright lock engaged through the under-seat lever mechanism
MobilityFive twin-wheel casters provide omnidirectional movement on office floorsArm supportFixed T-style armrests provide 230 mm forearm support above the seat
Back ventilationGrey mesh back allows air circulation across the lumbar and thoracic areaSeat occupancySingle-user task seating with centered weight transfer to the five-star base
Floor-contact stabilityFive-point caster layout spreads load and limits tipping during normal reclineRecline Angle / Lock Reference125° with 3suggested lock positions
Tilt Tension User-weight RangeReference adjustment coverage 120 kgCarton dimensions680 x 640 x 360 mm
Reference Package Count1 set / 2 cartonsReference Assembly Time40 minutes per set
Reference Carton Dimensions850× 420× 720 mmReference Packaged Gross Weight23 kg/set
Reference Carton Volume0.26 m³/setIndicative 20GP Loading135 sets at 85% space utilization
Indicative 40HQ Loading320 sets at 85% space utilizationOpen-plan workstationUse at individual desks for daily computer work with swivel access and ventilated back support
Private officePair with a standard desk for executives or specialists needing mobile, low-visual-bulk seatingMeeting roomDeploy around conference tables for 4-hour collaborative sessions and easy repositioning
Hot-desking areaSpecify for shared workpoints where users need height adjustment and easy entry or exitHome officeSuitable for a compact study or home workstation with hard floors or low-pile carpet
Training roomUse in flexible training layouts requiring lightweight rolling and uniform stackable-style seatingRecommended Matching Desk Size2.4 m executive desk
Reference Daily Use Duration8 hours/day; confirm by ergonomic testing——
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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 Thickness90 mm
Backrest Padding Thickness70 mm
Lumbar Support Zone Height240 mm
Clear Width Between Armrests540 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 capacity136 kg
Chair net weight15 kg
Seat foam density45 kg/m3
Seat foam rebound rating40%
Back mesh static loading target136 kg
Base static-load target1134 kg
Gas-lift cycle target100,000 height-adjustment cycles
Caster rolling durability target100,000 cycles
Seat-slide tilt mechanism durability target300,000 cycles
Seat Foam Density / Rebound Reference45 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 support fabricGrey flexible mesh with woven vertical texture
Back frameDark grey molded polymer perimeter frame supporting the mesh panel
Seat upholsteryDark blue woven textile over a padded seat pan
Seat cushionCut polyurethane foam with a 70 mm thick rounded front profile
Seat inner shell12 mm thick molded plywood or polymer load-distributing seat board
Arm padsLight grey polymer pads with smooth matte contact surface
Arm support frameLight grey painted steel or die-cast support loop connected beneath the seat
Tilt mechanismBlack steel plate mechanism with side operating lever
Gas liftBlack and polished steel telescoping gas lift, 50 mm outer diameter
Five-star basePolished aluminum-alloy five-spoke swivel base
CastersBlack polyurethane twin-wheel casters with swivel stems
Fasteners and hingesSteel bolts, washers, and hinge pivots with black oxide or zinc finish
PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

Swivel function360-degree full rotation around the central gas-lift axis
Seat height adjustmentPneumatic lift with 100 mm travel controlled by the visible side lever
Back reclineSynchronized tilt with a 12-degree backward recline from the upright position
Tilt tension controlRear rotary knob adjusts recline resistance for user weights up to 136 kg
Tilt lockOne-position upright lock engaged through the under-seat lever mechanism
MobilityFive twin-wheel casters provide omnidirectional movement on office floors
Arm supportFixed T-style armrests provide 230 mm forearm support above the seat
Back ventilationGrey mesh back allows air circulation across the lumbar and thoracic area
Seat occupancySingle-user task seating with centered weight transfer to the five-star base
Floor-contact stabilityFive-point caster layout spreads load and limits tipping during normal recline
Recline Angle / Lock Reference125° with 3suggested lock positions
Tilt Tension User-weight RangeReference 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.

Carton dimensions680 x 640 x 360 mm
Reference Package Count1 set / 2 cartons
Reference Assembly Time40 minutes per set
Reference Carton Dimensions850× 420× 720 mm
Reference Packaged Gross Weight23 kg/set
Reference Carton Volume0.26 m³/set
Indicative 20GP Loading135 sets at 85% space utilization
Indicative 40HQ Loading320 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 workstationUse at individual desks for daily computer work with swivel access and ventilated back support
Private officePair with a standard desk for executives or specialists needing mobile, low-visual-bulk seating
Meeting roomDeploy around conference tables for 4-hour collaborative sessions and easy repositioning
Hot-desking areaSpecify for shared workpoints where users need height adjustment and easy entry or exit
Home officeSuitable for a compact study or home workstation with hard floors or low-pile carpet
Training roomUse in flexible training layouts requiring lightweight rolling and uniform stackable-style seating
Recommended Matching Desk Size2.4 m executive desk
Reference Daily Use Duration8 hours/day; confirm by ergonomic testing
STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

EN 1335-1 dimensionsUse office chair dimensional safety requirements for seat, back, and clearance verification
EN 1335-2 safetyRequire structural safety verification including stability, strength, and mechanism integrity
EN 1335-3 test methodsUse specified test methods to validate back, seat, armrest, and base durability
EN 1022 stabilityApply chair stability testing for normal seating and limited backward recline
STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

ANSI/BIFMA X5.1 chair safety and durabilityUse back, seat, base, arm, and caster test requirements for commercial task-chair acceptance
STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB/T 10357.3 furniture mechanical testApply seat and back strength/durability test methods for chair procurement inspection
GB/T 3324 quality inspectionUse general wooden furniture technical requirements if the seat shell contains wood components
GB 17927 degraded materialsRequire assessment and labeling of restricted harmful substances in upholstered furniture materials
GB/T 2960 castor testingUse caster strength and rolling test requirements for the five replacement chair casters
Standardized tender description text
This product must meet the following technical requirements:
1. GB/T 10357.3 furniture mechanical test: Apply seat and back strength/durability test methods for chair procurement inspection;
2. GB/T 3324 quality inspection: Use general wooden furniture technical requirements if the seat shell contains wood components;
3. GB 17927 degraded materials: Require assessment and labeling of restricted harmful substances in upholstered furniture materials;
4. GB/T 2960 castor testing: Use caster strength and rolling test requirements for the five replacement chair casters;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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Product Description

The Mid-Back Mesh Swivel Task Chair with Blue Seat offers a clean, contemporary seating solution for daily desk work. Its grey flexible mesh back has a woven vertical texture set within a dark grey molded polymer perimeter frame, creating a ventilated visual profile with low visual bulk. The dark blue woven fabric seat provides a clear color accent against the neutral back, arm pads, and base. Fixed T-style armrests frame the seat, while the aluminum-alloy five-star base and twin-wheel casters give the chair a mobile, task-oriented appearance. Construction combines comfort-focused padding with durable support components. The seat uses a dark blue woven textile over a padded seat pan and a cut polyurethane foam cushion with a rounded front profile. Beneath the cushion is a molded plywood or polymer load-distributing seat board. The steel plate tilt mechanism is operated from the side, and the telescoping gas lift combines black and polished steel. Armrest support is provided by a light grey painted steel or die-cast loop connected under the seat, finished with smooth matte polymer arm pads. The chair rolls on polyurethane twin-wheel casters and has a recommended user weight capacity of 136 kg. Functional features support regular office movement and posture changes. The seat rotates 360 degrees around the central gas-lift axis and adjusts through 100 mm of pneumatic height travel using the visible side lever. The synchronized tilt mechanism allows a 12-degree backward recline from the upright position, while a rear rotary knob adjusts recline resistance. An upright lock is engaged through the under-seat lever. Fixed armrests provide forearm support, and the five-star caster base enables omnidirectional movement across office floors. This unbranded model, OFM-MID-BLUE-01, is suited to open-plan workstations, private offices, meeting rooms, hot-desking areas, training rooms, and compact home offices. It works particularly well where seating needs to be repositioned easily or shared among different users. Procurement teams should plan for assembly, account for the two-carton package structure, and confirm floor-surface compatibility, armrest clearance, and color coordination with existing desks or interiors.

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