Name: Armless Swivel Height-Adjustable Upholstered Office Chair
Brand: Yiankang
SKU: W7TCT1

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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)	510 × 590 × 920 mm
Seat width	460 mm
Seat depth	440 mm
Backrest height	480 mm
Backrest width	470 mm
Maximum seat height (floor to seat top)	530 mm
Minimum seat height (floor to seat top)	440 mm
4-star base span	700 mm
Base leg foot pad size	25 mm
Gas lift diameter	50 mm
Upholstery seat cushion thickness	80 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	12 kg
Recommended maximum user weight	120 kg
Swivel rotation range	360 degrees
Gas lift height adjustment stroke	90 mm
Seat cushion foam density	45 kg/m³
Seat foam rebound rate	45 %
Backrest foam thickness	60 mm
Upholstery abrasion resistance (Martindale)	50000 cycles
Seam stitch pitch	8 stitches per 30mm
Recommended warranty period	3 years

PRODUCT MODULE 03 / 06

Materials & Structure

Core acceptance fields · Panels / hardware / frame / upholstery

Data source: Subject to the factory material list and inspection report.

Seat and back upholstery	Light blue smooth faux leather (PU)
Seat cushion core	High-resilience polyurethane foam
Backrest core	Molded polyurethane foam
Internal seat support plate	12 mm thick molded plywood
Central gas lift	Polished chrome-plated steel Class 3 gas lift
Height adjustment lever	Black reinforced nylon
4-star base	Polished chrome-plated 2mm thick steel
Base foot pads	Non-marking black rubber
Seat-to-base connection plate	3 mm thick black powder-coated steel
Seat Internal Support Board Thickness	14 mm bent plywood or equivalent support board
Backrest Internal Frame Thickness	14 mm bent plywood/composite reinforced frame
Tilt Mechanism Plate Thickness	2.5 mm cold-rolled steel

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

Pneumatic height adjustment	Side-mounted lever controls gas lift to adjust seat height between 440mm and 530mm, locks at any position within travel range
360-degree swivel rotation	Full 360-degree horizontal rotation around central gas lift axis for flexible positioning without base movement
Contoured ergonomic support	Curved seat pan with waterfall front edge reduces thigh pressure, mid-height contoured back supports lumbar region without headrest
Stationary fixed base	4-star chrome base with rubber foot pads remains stationary on floor, no rolling casters installed for stable seating in meeting or guest areas
Armless free movement	No armrests fitted to allow unobstructed side access, easy tucking under desks and flexible seating posture
Easy assembly	Tool-free connection of seat assembly to gas lift and base, completed by aligning components and applying downward pressure
Recline Angle / Lock Reference	125° with 3 suggested lock positions
Tilt Tension User-weight Range	Reference adjustment coverage 120 kg
Rotation / Mobility Configuration	360° swivel with 5-caster multidirectional movement

PRODUCT MODULE 05 / 06

Packaging & Logistics

Verified carton / gross weight / assembly / loading data

Data source: Reference for export quotations and container planning.

Number of shipping cartons	1 carton
Shipping carton dimensions	620 x 540 x 430 mm
Gross shipping weight	14 kg
Shipping volume per unit	0.144 CBM
assembly time	10 minutes
20ft GP container loading quantity	320 units
40ft HQ container loading quantity	760 units
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 office workstation seating	Armless design allows close tucking under standard 750mm height desks, 360 swivel supports easy access to adjacent work surfaces
Meeting room and conference seating	Stationary caster-free base prevents unwanted movement during meetings, slim profile fits around standard conference tables without crowding
Home office task seating	Compact footprint saves space in small home work areas, light blue finish complements modern residential decor
Reception and guest waiting areas	Polished chrome base and smooth upholstery present a clean professional appearance, easy to wipe clean for high-traffic public areas
Training room seating	Lightweight construction allows easy reconfiguration for training sessions, armless design accommodates a wide range of user body types
Vanity and dressing room seating	Adjustable height works with standard vanity table heights, 360 swivel allows easy turning when accessing grooming items
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 1335-1:2020 (Office furniture - Office work chair - Part 1: Dimensions - Determination of dimensions)	Applicable European standard for office chair dimensional requirements for ergonomic task seating, recommended for EU market procurement
EN 1335-2:2018 (Office furniture - Office work chair - Part 2: Safety requirements)	Applicable European standard for structural safety and stability requirements for office task chairs
EN 1335-3:2020 (Office furniture - Office work chair - Part 3: Test methods)	Applicable test method standard for verifying strength, durability and stability performance

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

ANSI/BIFMA X5.1-2017 (General Purpose Office Chairs - Tests)	Applicable North American standard for safety, durability and structural performance testing for task chairs, recommended for North American market procurement
ANSI/BIFMA e3-2019 (Furniture Sustainability Standard)	Applicable sustainability standard for material content, emissions and social responsibility requirements for commercial furniture

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB 18584-2001 (Indoor decorating and refurbishing materials - Limit of harmful substances of wood based furniture)	Applicable standard for formaldehyde emission limits for internal plywood components, recommended for indoor air quality acceptance

Standardized tender description text

This product must meet the following technical requirements:
1. GB 18584-2001 (Indoor decorating and refurbishing materials - Limit of harmful substances of wood based furniture): Applicable standard for formaldehyde emission limits for internal plywood components, recommended for indoor air quality acceptance;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

The Yiankang Model 1716C-X12 Armless Swivel Height-Adjustable Upholstered Office Chair presents a sleek, streamlined profile defined by its light blue smooth faux leather upholstery, polished chrome central column and stationary 4-star base. The mid-back contoured design pairs with a curved, waterfall-edge seat pan to create a compact, unobtrusive visual footprint, with no protruding armrests to break its clean lines. The unit balances soft padded surfacing with reflective metal accents for a contemporary, professional aesthetic. Constructed with multi-layered supportive structures, the chair features high-resilience polyurethane foam in the seat and molded polyurethane foam in the backrest, mounted on bent plywood internal support frames connected via a black powder-coated steel connection plate to a polished chrome-plated steel base fitted with non-marking black rubber foot pads. A polished chrome-plated steel Class 3 gas lift supports height adjustment, controlled by a side-mounted black reinforced nylon lever, with durable upholstery stitching and contract-grade faux leather built to withstand regular frequent use. Core functional features include pneumatic seat height adjustment that locks at any position within its travel range, full 360-degree horizontal swivel for flexible positioning without base movement, and contoured ergonomic shaping that reduces thigh pressure and delivers targeted lumbar support for upright task seating. The fixed, caster-free base delivers stable, non-slip placement, while the armless configuration allows unobstructed side access and easy tucking under work surfaces. The chair uses tool-free knock-down assembly that can be completed quickly upon delivery. This model is well suited for a range of both commercial and residential spaces, including open office workstations, meeting and conference rooms, reception and guest waiting areas, flexible training rooms, compact home office setups, and residential vanity or dressing areas. Its slim profile fits neatly around standard tables and desks, its easy-to-clean upholstery suits high-traffic public zones, and its lightweight build supports quick reconfiguration for multi-purpose spaces. For procurement planning, note that the chair ships in knock-down form for efficient transport, with bulk contner loading calculated to support large-scale commercial furnishing projects. Buyers should confirm exact material composition, formal certification documentation, and final packaging configurations directly with the supplier prior to order placement, as some specification values reference standard category benchmarks rather than direct supplier measurement. The chair carries a recommended warranty period aligned with mid-market office seating offerings, supporting reliable long-term use across applicable settings.

Armless Swivel Height-Adjustable Upholstered Office Chair Specifications

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