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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)	840 × 810 × 1060 mm
Seat height	465 mm
Seat width	575 mm
Seat depth	550 mm
Backrest height	630 mm
Armrest height from seat	180 mm
Four-star base spread diameter	700 mm
Seat cushion thickness	120 mm
Backrest rake angle	110 degrees
Base leg height clearance	25 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 static load capacity	159 kg
Net product weight	37 kg
Seat foam density	60 kg/m³
Seat foam rebound rate	55%
Backrest foam thickness	80 mm
Seam stitch pitch	8 stitches per 25mm
Upholstery abrasion resistance (Martindale)	50000 cycles
Base static load rating	180 kg
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.

Outer shell upholstery	Top-grain aniline tan leather
Seat cushion upholstery	Matching full-grain tan leather
Internal support frame	1.5mm thick welded steel tube
Seat cushion core	High-resilience polyurethane foam
Backrest padding	Dual-density polyurethane foam
Swivel base structure	2mm thick powder-coated black steel
Base floor glides	Non-marking hard rubber pads
Piping detail	Black contrast edge stitching
Swivel mechanism	Powder-coated steel 360-degree rotation bearing
Back panel substrate	12mm thick molded plywood
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.

Rotation function	360-degree full swivel on central steel bearing
Cushion design	Removable zip-secured thick seat cushion
Seating posture support	Enveloping contoured shell with 110-degree back rake
Floor protection	Non-scratch rubber glides on each base leg tip
Stability design	700mm wide four-star leg spread
Height adjustment	Fixed non-adjustable seat height
Tilt function	Fixed back angle with no recline adjustment
Armrest integration	Continuous armrests formed with back and seat shell
Recline Angle / Lock Reference	125° with 3suggested 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.

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.

Modern living room seating	Pair with low-profile coffee tables for casual conversation areas
Office reception and lounge zones	Place in waiting areas for visitor comfort with premium aesthetic
Hotel lobby and guest room use	Deploy in suite corners or lobby lounge pods for upscale seating
Private study reading nooks	Position next to floor lamps for relaxed upright reading support
Boutique retail waiting areas	Use in luxury store fitting room waiting zones for premium feel
Executive office breakout areas	Place away from work desks for informal meeting spaces
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 16139:2013	Applicable to strength, durability and safety requirements for non-domestic lounge seating
EN 1022:2018	Applicable to stability testing for fully upholstered lounge chairs without height adjustment
EN 13356:2021	Applicable to anti-scratch floor protection requirements for chair base contact points

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

ANSI/BIFMA X5.4-2020	Applicable to performance and durability testing for lounge and public area seating
ANSI/BIFMA X5.1-2017 (clause 7)	Applicable to static load testing for chair bases and support structures

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB/T 3324-2017	Applicable to general technical requirements for wooden and upholstered furniture strength and stability
GB 20400-2006	Applicable to leather upholstery limits of harmful substances for furniture use
GB/T 16799-2008	Applicable to performance testing of furniture upholstery leather materials

Standardized tender description text

This product must meet the following technical requirements:
1. GB/T 3324-2017: Applicable to general technical requirements for wooden and upholstered furniture strength and stability;
2. GB 20400-2006: Applicable to leather upholstery limits of harmful substances for furniture use;
3. GB/T 16799-2008: Applicable to performance testing of furniture upholstery leather materials;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

Designed with a contemporary minimalist silhouette, the Tan Leather 4-Star Base Swivel Lounge Armchair features an enveloping upholstered shell paired with a separate, thick seat cushion, anchored by a sleek casterless fixed four-star base. Black contrast edge stitching adds subtle visual definition to the warm tan upholstery, creating a balanced, refined profile that fits seamlessly into curated modern interiors. The chair’s dimensions support relaxed, upright postures with a comfortably contoured back and appropriately scaled armrests that invite extended seating.
The armchair is built for long-term durability across high-use settings. Its outer shell is upholstered in top-grain aniline tan leather, while the removable zip-secured seat cushion uses matching full-grain tan leather. An internal 1.5mm thick welded steel tube frame provides structural support, with high-resilience polyurethane foam forming the seat core and dual-density polyurethane foam padding the backrest. The swivel base is constructed from 2mm thick powder-coated black steel, fitted with a powder-coated steel 360-degree rotation bearing for smooth, consistent movement. Each leg of the four-star base terminates in non-marking hard rubber glides that protect hard flooring surfaces from scuffs and abrasion. Precise seam stitching reinforces upholstery edges, and the 700mm wide base spread delivers steady, stable support without tipping risk.
Functional details are tailored for comfort and practicality. The 360-degree full swivel allows users to adjust their orientation without repositioning the chair, while the enveloping contoured shell features a 110-degree back rake for relaxed, supported seating. The seat uses a thick, supportive cushion that can be removed for easy cleaning or upholstery care, with no adjustable seat height or recline function to maintain a streamlined, uncluttered form. The fixed design reduces mechanical wear points over time, supporting consistent performance in regular use.
This armchair is well suited for a wide range of residential and commercial spaces. In residential settings, it works as a primary seating piece in modern living rooms when paired with low-profile coffee tables for casual conversation areas, or as a dedicated reading seat in private study nooks positioned adjacent to floor lamps. For commercial applications, it delivers a premium, upscale feel in office reception and waiting zones, hotel lobbies and guest suite corners, boutique retail fitting room waiting areas, and executive office breakout spaces designed for informal, away-from-desk meetings.
For procurement planning, note that each unit ships across two cartons, with a straightforward assembly process that takes 40 minutes per set. The fixed non-adjustable design and casterless base make it ideal for spaces where static, stable placement is preferred, while the premium leather upholstery aligns with environments prioritizing elevated, tactile design and visitor comfort. Load capacity supports use by a wide range of users, and the durable upholstery resists wear from regular daily use across both residential and high-foot-traffic commercial settings.

Tan Leather 4-Star Base Swivel Lounge Armchair Specifications

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