open up

Swivel chair, Meeting & conference chair

Motivation comes from being able to lean back and relax during a hard working day. Switch off and free up your thoughts – no problem when you have open up in the office. Whenever you need to clear your head. Sitting, standing or even when lying down: this elegant office chair with integrated “Similar” and dorsokinetic mechanisms makes any position possible. Freedom of movement releases the mind. The perfect inspiration for efficient working.

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!

CONFIGURE PRODUCT NOW

Impressions

open up – The dynamic office revolution

This unusual swivel chair features a reclining angle of up to 45 degrees; a value which, when combined with a dorsokinetically suspended backrest, is achieved by no other chair on the market. The flexible backrest connection ideally supports the back during all rotating and lateral movements.

Dorsokinetic mechanism

With the flexible backrest connection, open up supports you at all times. The backrest follows your every movement. Sideways. Backwards.

Lumbar support

Height-adjustable strain-relief for the lower back. To ensure that the backrest fits perfectly to your back.

3D armrests

Comfort that adapts. In every direction. In Soft-touch, with leather upholstery or gel insert.

Variety

open up with membrane-covered backrest, polished aluminium base.

open up with flat cushion, polished aluminium base.

open up with flat cushion, aluminium base, powder-coated in white aluminium.

open up with flat cushion, polished aluminium base, without armrests.

open up with membrane-covered backrest, headrest, polished aluminium base.

open up with membrane-covered backrest, headrest, polished aluminium base.

open up with flat cushion, headrest, polished aluminium base.

Cantilever chair with a membrane-covered
backrest and flat upholstery, chrome-plated
steel frame

open up model compare

Conference chair

Cantilever

Swivel chairs

Swivel chairs with neck support

Swivel chair modern classic

Cantilever modern classic

Backrest

membrane cover
flat upholstery pad

Backrest

membrane cover
flat upholstery pad

Backrest

membrane cover
flat upholstery pad

Backrest

membrane cover
flat upholstery pad

Backrest

Leather brown
Leather cognac
Leather dark brown
Leather black

Backrest

Leather brown
Leather cognac
Leather dark brown
Leather black

Castors

Base

Aluminium:
black,
white aluminium,
polished

Base

Aluminium:
black,
white aluminium,
polished

Base

Aluminium:
black,
white aluminium,
polished

Base

Aluminium:
black,
white aluminium,
polished

Base

Aluminium:
polished

Base

Steel:
chromed

Without armrests

Stackable

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.

TO SEDUS SUSTAINABILITY

Options

	standard	optional
Backrest	Adjustable backrest pressure Dorsokinetic backrest	Adjustable lumbar support Different cover for backrest upholstery (depending on version) Backrest with flat upholstery pad
Armrests	Plastic armrests	Without armrests Standard armrests with leather covers 3-D armrests with soft-touch covers 3-D armrests with gel-pad covers 3-D armrests with leather covers
Seat mechanism	“Similar” mechanism	Similar mechanism with tension control and forward tilt 4° Large seat (30 mm larger in seat depth and width)
Seat height-adjustment	Gaslift with mechanical depth-springing
Base	Aluminium base, powder-coated black	Aluminium base, powder-coated white aluminium Aluminium base, polished
Model colour (mechanism and plastic parts)	Black
Specification	Hard castors for soft floors	Soft castors for hard floors

Technical specifications

Dimensions
open up
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 420 mm, optional large seating 485 x 450 mm
Seat height-adjustment	• Gaslift with mechanical depth-springing: reinforced cushioning of the body‘s weight even in the lowest seat position, height adjustment 420 - 545 mm
Base	• Aluminium base, powder-coated, black, white aluminium, white or polished aluminium • Hard or soft castors with 65 mm diameter
Backrest	• Backrest of frame fitted with membrane covering (with 6 different colours), optional flat cushion • Flexible connection to the backrest frame (dorsokinetic system) ; in combination with the Similar mechanism the backrest reaches a wide open angle of 45° (depends on the weight of the user) • Optional height adjustable lumbar support, upholstered with black fabric, 100 mm height adjustable for precise adaptation to the back of the user • Completely recovered with leather, adjustable in height and tilt, vertical 90 mm, forward 80 °; in black leather for models in fabric, for models in leather, the leather colour matches the upholstery choice
Armrests	• Standard armrests with soft-touch or leather covers • Optional 3D armrests with soft-touch, leather or gel-pad covers, height adjustment 100 mm (210 - 310 mm)
Mechanism	• Similar mechanism with tension control: balanced force curve due to coordinated spring concept • Seat and backrest move completely synchronised with the body • Synchronicity relationship between seat and backrest 1:2.7 • 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]) • Backrest inclination to approx. 35°, can be locked in virtually continuously variable manner (11 different settings) • 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 • 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 • iF product design award 2001 • Red Dot Design Award 2000 • Design Award of the Federal Republic of Germany, 2002 • best of NeoCon 2001, silver award • Baden-Württemberg International Design Award 2003
Warranty	5 years