crossline

Swivel chair

This exceptional office chair is the product of the close collaboration between scientists, engineers and designers with the aim of developing a novel seating system which moves in perfect synchronicity with the human body. This aim was achieved using the patented “Similar-Plus” mechanism and an innovative backrest design. The unique functionality also defines the singular aesthetics of this chair, which can be seen in the distinctive crossshaped backrest support structure for which the Sedus crossline models were named.

Design: Markus Dörner (Sedus Design Team)

 

 

Superior seating culture: Sedus crossline prime

crossline, in the form of the crossline prime management armchair, represents a high culture of seating. Like a shadow, seat and backrest follow every body movement in absolute harmony. The body is perfectly supported at all times, without being controlled by the technology. Once you get used to this incomparable comfort, you will never want to settle for anything less! When superlative function looks this elegant, seating culture has truly reached a new high.

 

 

Simply good posture

Perfectly engineered, Sedus crossline ensures exceptionally balanced movements, which encourages users to change their sitting position while working. Thanks to the patented Similar-Plus mechanism, combined with the individually adjustable opening angle, the backrest maintains constant contact with the back, providing continuous and optimum support. The chair can thus be ideally adapted to the respective activity of the sitter: For example, for still monitor work, the range of movement might be less than when relaxing and leaning back when telephoning, reading or contemplating.

Variety

Details

 standardoptional
Backrest

Pre-selectable opening angle (0, 11, 22, 32°)
Height-adjustable lumbar support (60 mm)
Adjustable backrest pressure

Headrest integrated into the backrest
Black leather headrest (depending on version)
Different cover for backrest upholstery
Armrests

3-D armrests with soft-touch covers

Without armrests
3-D armrests with gel-pad covers
3-D armrests with leather covers
Seat mechanism

“Similar-Plus” mechanism

"Similar-Plus mechanism with tension control and forward tilt to 4°"
Sliding seat (adjustment range 50 mm)
Seat height-adjustmentSedo-Lift mechanismGas lift mechanism
BaseAluminium base, powder-coated blackAluminium base, powder-coated white aluminium
Aluminium base, powder-coated white
Aluminium base, polished
Model colour (mechanism and plastic parts)Black

White

SpecificationHard castors for soft floorsSoft castors for hard floors
Miscellaneous Large seat
 standardoptional
BackrestPre-selectable opening angle (0, 11, 22, 32°)
Height-adjustable lumbar support (60 mm)
Adjustable backrest pressure
Headrest integrated into the backrest
Black leather headrest (depending on version)
Different cover for backrest upholstery
ArmrestsAluminium armrests (polished) with leather covers 
Seat mechanism“Similar-Plus” mechanism"Similar-Plus mechanism with tension control and forward tilt to 4°"
Sliding seat (adjustment range 50 mm)
Seat height-adjustmentSedo-Lift mechanismGas lift mechanism
BaseAluminium base, polished 
Model colour (mechanism and plastic parts)Black

 

SpecificationHard castors for soft floorsSoft castors for hard floors
Miscellaneous Large seat (depending on version)
Dimensions 
crossline 

User weightRecommended for user weights up to 120 kg
Seat • Generously upholstered seat pan, with cave-in effect seat-leg hump, front edge of seat rounded 
• Shaped foam (polyurethane foam) 
• Upholstery thickness 50 mm 
• Width 490 mm, depth 410 mm; optional larger seat 490 x 460 mm 
• Optinal sliding seat (depth 400 - 450 mm) with return function
Seat height-adjustment • Sedo-lift 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 420 - 520 mm 
• Optional gas spring for infinitely variable height adjustment 400 - 520 mm
Base • Aluminium base, powder-coated, black, white aluminium, white (backrest supports in white aluminium) or polished aluminium 
• White aluminium base only with white chair 
• The design of the base determines the design of the backrest support. Exception: on the version with the white aluminium base, the armrest supports are also in white aluminium. 
• Hard or soft castors with 65 mm diameter
Backrest • Supporting structure in polyamide
• Upholstery construction consisting of a flexible padded polypropylene frame with soft slats
• Upholstery construction on supporting structure movable due to rotating bearings (at shoulder height) and sliding bearings (below the region of the iliac crest) 
• Lumbar support adjustable by up to 60 mm
• Version in leather has ribbed backrest upholstery
• Optional detachable black leather neck protection for backrest in fabric cover with integrated neck support
Armrests 

• Multifunctional 3D armrests with soft-touch, leather or gel-pad covers, height adjustment 90 mm (220 - 310 mm), clear width 460 - 510 mm 

Mechanism • Similar-Plus mechanism with tension control: balanced force curve thanks to coordinated spring concept 
• Seat and backrest move completely synchronised with the body 
• Synchronicity relationship between seat and backrest 1:3.3
• Sensitive locking of quick adjustment facilitates adaptation to different users‘ body weight (500 to 1500 N [10 N = 1 kg]) 
• With pre-selectable backrest opening angle in four stages up to 32° (0°, 11°, 20° and 32°) 
• Permanent back support guaranteed even with the seat tilted far back due to the balanced force progression of the mechanical spring 
• Opional 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
• Red Dot Design Award 2009, Winner
Warranty 

5 years
30 years for Sedo-lift mechanism

 

Dimensions 
crossline prime

User weight• Recommended for user weights up to 120 kg
Seat • Generously upholstered seat pan, with cave-in effect seat-leg hump, front edge of seat rounded 
• Shaped foam (polyurethane foam) 
• Width 490 mm, depth 410 mm; optional larger seat 490 x 460 mm 
• Optional sliding seat (depth 400 - 450 mm) with return function
Seat height-adjustment • Sedo-lift mechanism: complete cushioning of body weight, even in lowest seating position, no compression of the spine when sitting downprovided by hydraulic interlock, completely free of wear and tear, mechanical failure or gas lift replacement, height adjustment between 420 - 520 mm 
• Optional gas spring for infinitely variable height adjustment 400 - 520 mm
Base • Aluminium base polished
• Hard or soft castors with 65 mm diameter
Backrest • Polished aluminium supporting structure 
• Upholstery construction on supporting structure movable due to rotating bearings (at shoulder height) and sliding bearings (below the region of the iliac crest) 
• Upholstery construction consisting of a flexible padded polypropylene frame with soft slats 
• Lumbar support adjustable by up to 60 mm 
• Version in leather has ribbed backrest upholstery
• Optional neck part cover (removable) in black leather for high backrest in fabric with integrated headrest
Armrests • Polished aluminium armrests with leather covers 
• Clear width 465 mm to 505 mm 
Mechanism • Similar-Plus 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 1:3.3 
• Sensitive locking of quick adjustment facilitates adaptation to different users‘ body weight (500 to 1500 N [10 N = 1 kg])
• Permanent back support guaranteed even with the seat tilted far back due to the balanced force progression of the mechanical spring 
• With pre-selectable backrest opening angle in four stages up to 32° (0°, 11°, 20° and 32°) 
• 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
• Tested for harmful substances by TÜV Rheinland LGA Products GmbH  
• GREENGUARD certified (cn-133)
• AGR quality seal - Healthy Backs Campaign
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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