open mind

Swivel chair

Vision. Transparency. Clear design. Concentrating on the essential, open mind motivates with exceptional freedom of movement. Lean back and relax. Correct posture is ensured by this aesthetically pleasing swivel chair. With its innovative backrest frame and highly flexible membrane covering in a refreshing range of colours. Unconstrained by time or place. Open to new tasks.

Design: Mathias Seiler (Sedus Design Team)

Design your own unique Sedus product – after all, maximum comfort requires customised solutions.

Our configurator guides you step by step through the various options and customisation possibilities of the product. At the end of the configuration process, you can request a non-binding quote, download images and planning data and test the product directly in the room using augmented reality.

You can call up your personal configuration again at any time using your personal PIN code – just save it, come back later and make adjustments. Let's go!


The professional solution for relaxed and efficient working

Greater simplicity of design is hardly possible. Just like the open up chair, open mind also offers extensive manoeuvrability. This allows a flexible sitting or lying posture, thanks to the “Similar” mechanism, with its large opening angle which moves in  synchrony with the body. The integrated backrest support with highly flexible membrane ensures ideal sitting comfort – in accordance with the rules of bionics. Additional features such as seat depth and tilt adjustment unite the ambitious design with the outstanding ergonomics.


Sustainable production

We purchase around two thirds of the steel, aluminium and wood which we require to produce our products in Germany and almost all the rest from Europe, this helps us to avoid long delivery routes whilst, at the same time, boosting the local economy. We use materials which have been tested and assessed with respect to potentially adverse effects on human health and the environment.


Sustainable production of open mind

  • Covers not glued into place
  • CFC-free foams
  • Galvanisation with chrome III
  • Use of certified upholstery fabrics in accordance with OEKO-TEX Standard 100
  • Produced using 100 % green electricity
  • Produced in accordance with EMAS III Environmental management
  • Produced in accordance with DIN ISO 14001 Environmental management
  • Produced in accordance with DIN EN 45001 Occupational safety


UpholsterySeat upholstered, backrest with membrane cover

Seat upholstered, backrest with flat upholstery pad

Model colour / plastic partsblack 
Armrests3D armrests with soft-touch covers3D armrests with gel-pad covers
Without armrests
MechanismSimilar mechanism with tension controlSimilar mechanism with tension control and forward tilt 4°
Seat height-adjustmentSedo-lift mechanism IIIGaslift for counter design with footring
BaseAluminium base blackAluminium base white aluminium
Aluminium base polished
open mind

User weight Recommended for user weights up to 120 kg 
Seat • Anatomically shaped seating surface with pelvis support, seat hollow and rounded front edge of seat 
• Shaped foam (polyurethane foam) 
• Upholstery thickness 40 mm
• Width 485 mm, depth 430 mm 
• Optional sliding seat with seat depth 400 - 460 mm
Seat height-adjustment 

• Sedo-lift III mechanism: complete cushioning of body weight, even in lowest seating position, no compression of the spine when sitting down provided by hydraulic interlock, completely free of wear and tear, mechanical failure or gas lift replacement, height adjustment between 435 - 550 mm
• Optional gaslift for counter design with footring

Base • Aluminium base, powder-coated, black, white aluminium, white or polished aluminium 
• Hard or soft castors with 65 mm diameter

• Backrest of frame fitted with membrane (covering with 5 different colours), optional flat cushion 
• Optional neck support fully covered with height and angle adaptation, adjustment range 105 mm, forwards inclination 25°, for models in fabric in black vinyl, for models in leather, the leather colour matches the upholstery choice 
• Optional lumbar support with height adjustment, fully covered with material, with 100 mm height adjustment for precise fit around user‘s back 


• 3D armrests with soft-touch or gel-pad covers, height adjustment 100 mm (200 - 300 mm), clear width 500 mm,  in conjunction with sliding seat 445 - 510 mm 

Mechanism • Similar mechanism with tension control: balanced force curve due to coordinated spring concept 
• Backrest inclination to approx. 32°, can be locked in virtually continuously variable manner (11 different settings) 
• Seat and backrest move completely synchronised with the body
• Adaptation to different user weights enables sensitive latching of the rapid adjustment mechanism (leaning pressure 450 - 1200N and 550 - 1500N (stronger spring) [10N = 1 kg]) 
• Synchronicity relationship between seat and backrest 1:2.7 
• Permanent back support even when the backrest is inclined backwards at a wide angle, due to uniform force distribution of the mechanical springs 
• Optional seat-inclination adjustment mechanism (- 4°) for even less pressure on the upper thighs
Standards / Certificates 

• GS label by TÜV Rheinland LGA Products GmbH / DIN EN 1335 / DIN 4573
• Ergonomics Certificate by TÜV Rheinland LGA Products GmbH
• Tested for harmful substances by TÜV Rheinland LGA Products GmbH
• QUALITY OFFICE quality seal 
• GREENGUARD certified 
• AGR quality seal - Healthy Backs Campaign 
• Design Award of the Federal Republic of Germany, 2004, Commendation 
• iF product Design Award 2003
• Red Dot Design Award 2003

Warranty 5 years
30 years for Sedo-lift mechanism

TO MEDIACENTER    You can also download all the images and documents from the Sedus Mediacenter.

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