Ref.: 119858 10

BIGSTAR20 operator swivel chair – Topstar point synchronous mechanism, max. load 150 kg

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BIGSTAR20 operator swivel chair – Topstar
Includes height adjustable arm rests with soft padding

blue

Flat seat with knee roll
Flat seat with knee roll
Synchronous mechanism
The synchronous adjustment of seat and back rest angles can be adjusted to individual body weight.
Synchronous mechanism. The synchronous adjustment of seat and back rest angles can be adjusted to individual body weight.
Sliding seat
Seat depth adjusted using locking sliding seat.
Sliding seat. Seat depth adjusted using locking sliding seat.
Seat colour
€ 739.00
Price / item (Excl. VAT)
Only 3 available
Delivery time: 9-11 Working Days
Product description
  • Very high back rest
  • Extra large seat surface
  • Armrests with soft padding
  • Point-synchronous mechanism individually adjustable to body weight
  • Sliding seat with continuously adjustable seat depth
  • Integrated lumbar support
The Topstar office chair BIGSTAR20 is equipped with a point-synchronous mechanism in which the seat and backrest tilt can be adjusted synchronously. The mechanism can be individually adjusted to body weight. The backrest features an integrated lumbar support.

The sliding seat consists of a foam seat in a plastic undershell. The seat surface can be adjusted continuously, enabling an individual adjustment of the seat depth. The thickly upholstered flat seat offers a deep and wide shape and is additionally equipped with a knee roll. The seat tilt is also adjustable.

Features include height-adjustable armrests with soft pads. The fabric cover is easy-care. The base is made of polished aluminium and, as standard, the office chair is equipped with castors for soft floors.

The BIGSTAR20 complies with the LGA guideline for heavy-duty swivel chairs based on DIN EN 1335 Part 1–3. The castors comply with DIN EN 12527 and DIN EN 12529.
Your advantage
Fully equipped with height adjustable arm rests and upholstered flat seat with knee roll, seat depth and seat inclination adjustment.
Meets LGA directive for heavy duty swivel chairs as based on DIN EN 1335 part 1 – 3, castors compliant with DIN EN 12527 + DIN EN 12529.
Supplied flat pack – easy self-assembly.
Technical data
Modelupholstered back rest
Fittingslumbar support
Frame colourpolished aluminium
Frame materialaluminium, polished
Seat mechanismsynchronous mechanism
Frame designwith castors
Seat height440 – 520 mm
Type of arm restswith arm rests
Back rest height700 mm
Seat depth460 mm
Seat width540 mm
Shape of seat shellsliding seat flat seat with knee roll
Conforms toEN 1335 parts 1 – 3 GS tested DIN EN 1021 parts 1 – 2
Seat materialpolyester
Design of castorscastors for soft floors
Max. load150 kg
Period of use/dayup to 8 hours
Product typeXXL office chairs office swivel chairs
Suppliedflat pack
Weight21.7 kg
Seat colourblue
Manufacturer / EU responsible Person (GPSR)
Sustainability
Sustainable product

This product actively contributes to protecting our environment and taking social responsibility. It meets our strict sustainability criteria and thus supports an economically, ecologically and socially viable future. The score asks the crucial question for every product: does this product contribute to creating sustainable and fair conditions for today and future generations? Below are the categories in which this product performs particularly well.

You can find out more about product evaluation and our sustainability initiative on our information page .

Product CO₂ footprint

LCA functional unit
1
Recycled content in %?
0
CO2 footprint year of calculation
2026
LCA validity (in years)
1
CO2 footprint calculation method product
Calculated by our partner GlobalChanger (GreenZero) in accordance with ISO 14044 (LCA) / 14067 (PCF) (GWP100 [IPCC version]) principles.<br/>PCF values are product specific averages that have not been verified by third parties and may evolve as the data basis improves.
CO2 footprint system boundaries
Cradle-to-gate

PCF Lifecycle Breakdown

109.63kg CO₂e
LCA Raw Material Extraction & Processing
47.5%
LCA packaging production
2.2%
LCA Product Manufacturing
42.6%
LCA Inbound and Outbound Transportation
7.7%
Scoring System
3.0/5.9Overall score
CriteriaWeightingScore
Icon Climate protectionClimate protection30%2.5
Icon Circulatory economyCirculatory economy30%3.1
Icon BiodiversityBiodiversity25%2.2
Icon Economic efficiencyEconomic efficiency10%1.0
Icon InnovationInnovation5%3.9
More about our sustainability approach.
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