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High-Back Mesh Ergonomic Swivel Office Chair with Adjustable Lumbar Support Specifications

KL-05A/B

Code:SYA0GAV1
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2026-08-09 14:40Popularity: 64
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KL-05A/B

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PRODUCT MODULE 01 / 06

Physical Dimensions

Automatic mm / inch conversion · Core engineering specifications

Overall dimensions690 x 710 x 1200 mm
Seat width510 mm
Seat depth480 mm
Maximum seat height635 mm
Minimum seat height440 mm
Five-star base diameter680 mm
Caster diameter50 mm
Backrest height760 mm
Armrest height adjustment range80 mm
Backrest width490 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

Net weight19.3 kg
Maximum static load capacity136 kg
Gas lift stroke195 mm
Seat foam density40 kg/m³
Seat foam thickness80 mm
Mesh abrasion resistance50000 cycles
Backrest frame static load68 kg
Net product weight19.3 kg
Gas lift vertical stroke195 mm
Backrest mesh abrasion resistance50000 cycles
PRODUCT MODULE 03 / 06

Materials & Structure

Core acceptance fields · Panels / hardware / frame / upholstery

Backrest upholsteryBreathable polyester elastic mesh
Back framePA nylon with 30% glass fiber reinforcement
Seat cushion paddingHigh-density molded polyurethane foam
Seat base shell1.5mm thick steel plate
ArmrestsPP structural frame with soft PU padded tops
Five-star base2.0mm thick electroplated steel
CastersHard-wearing PP with polyurethane rolling surface
Lumbar support structureFlexible reinforced PP
HeadrestIntegrated curved PP frame with mesh overlay
Gas lift cylinderClass 3 steel, SGS certified
Backrest support framePA nylon with 30% glass fiber reinforcement, 5mm wall thickness
Seat support chassis2.5mm thick stamped steel plate with black powder coating
PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Seat height adjustmentPneumatic gas lift, 195mm travel, lever-operated under seat
Swivel function360-degree full rotation around central axis
Tilt functionBackrest recline to 130 degrees with single-position lock
Armrest adjustmentVertical height adjustment up to 80mm with fixed position lock
Lumbar supportContoured flexible zone with 40mm vertical adjustment
MobilityFive dual-wheel casters for smooth rolling on hard and carpet floors
Tilt tension controlRotary knob adjusts resistance to match user weight
Headrest supportCurved integrated neck support with fixed contour for upper spine
360-degree swivelFull unobstructed rotation around central gas lift axis, no lock limit
Lumbar support adjustmentFlexible contoured support with 40mm vertical travel, adapts to lower back curve
Floor mobilityFive dual-wheel casters, 360-degree swivel per caster, rolls on hard and carpet surfaces
Recline Angle / Lock Reference125° with 3suggested lock positions
PRODUCT MODULE 05 / 06

Packaging & Logistics

Verified carton / gross weight / assembly / loading data

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

Open-plan office workstationFor 8-hour daily task use at standard 760 mm height office desks
Home office workspaceFor remote work and computer use at residential desk setups
Conference and meeting roomsFor multi-hour seated meetings and collaborative work sessions
Executive private officeFor manager and professional individual office use with ergonomic support
Computer lab and training roomsFor long-duration seated tasks requiring adjustable height and lumbar support
Open-plan office workstationsFor 8-hour daily task use at standard 760mm height office desks, lumbar support reduces fatigue
Executive private officesFor manager and professional individual office use, high-back design provides upper back support
Training rooms and computer labsFor long-duration seated training and computer tasks, durable casters and sturdy base suit frequent repositioning
STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

EN 1335-1:2020Applies to office work chair dimensional and safety general requirements
EN 1335-2:2018Applies to office chair structural strength and durability performance requirements
EN 1335-3:2018Applies to office chair test methods for structural and safety verification
STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

ANSI/BIFMA X5.1-2017Applies to general-purpose office chair durability, strength and stability testing
ANSI/BIFMA X5.11:2015Applies to large-user office chair load capacity verification if required
Caster rolling durability40000 cycles
STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB/T 3326-2016Applies to office furniture chair dimensional accuracy and stability testing
GB/T 35448-2017Applies to ergonomic office chair general technical requirements for office use
GB/T 17657-2013Applies to surface material physical property testing for chair upholstery
Standardized tender description text
This product must meet the following technical requirements:
1. GB/T 3326-2016: Applies to office furniture chair dimensional accuracy and stability testing;
2. GB/T 35448-2017: Applies to ergonomic office chair general technical requirements for office use;
3. GB/T 17657-2013: Applies to surface material physical property testing for chair upholstery;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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PDF · KL-05A/B

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Product Description

The KL-05A/B unbranded high-back mesh ergonomic swivel office chair delivers structured, user-centered support for extended seated use across professional and residential settings. It features a tall, contoured backrest upholstered in breathable polyester elastic mesh, with an integrated curved mesh headrest that follows the natural line of the upper spine and neck. The chair sits on a polished electroplated steel five-star base fitted with dual-wheel casters, with softly padded PU armrests positioned at either side of the high-density foam seat to frame the seating position without restricting movement. The matte black finish gives it a streamlined, understated aesthetic that blends with a wide range of interior design schemes. Its construction prioritizes long-term durability and consistent comfort, with a glass-fiber reinforced PA nylon back frame, a 1.5mm thick steel seat base shell, and a 2.0mm thick electroplated steel base. The seat cushion uses molded high-density polyurethane foam for even weight distribution, while the flexible reinforced PP lumbar support structure moves to match seated posture shifts. Armrests are built on rigid PP structural frames topped with soft PU padding, and casters combine a hard-wearing PP core with a smooth polyurethane rolling surface suited to both hard flooring and carpet. Core functional features are designed to accommodate a wide range of user preferences and body types. A pneumatic under-seat lever adjusts seat height to align with standard desk heights, while 360-degree swivel allows easy access to surrounding work surfaces without standing. The backrest reclines to a 130-degree angle with a single-position lock, and a rotary knob lets users adjust tilt tension to match their weight for a personalized feel. Armrests offer vertical height adjustment with a secure fixed-position lock, and the contoured lumbar support moves vertically to target the lower back and reduce fatigue during long periods of seated work. Five dual-wheel casters deliver smooth, quiet movement across common floor surfaces. This chair is well suited for open-plan office workstations supporting 8-hour daily task work, home office spaces for remote work and computer use, conference rooms for multi-hour collaborative meetings, private executive offices for professional individual use, and computer labs or training rooms that demand adjustable, supportive seating for long sessions. For procurement planning, teams should note each unit ships in two cartons, with assembly taking an average of 40 minutes per set. The compact carton dimensions support efficient container loading for large-scale orders, and the chair supports a maximum static load capacity to suit most adult users. There are no brand-specific cosmetic customizations available, making it a consistent, reliable option for bulk furnishing projects that prioritize functional ergonomic support over prominent brand labeling.

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