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Waiting area of a public or medical facility with a double-leaf, closed tubular frame door with door closer OTS 634x
Waiting area of a public or medical facility with a double-leaf, closed tubular frame door with door closer OTS 634x
Creating comfort and accessibility

Door closers and hold-open systems

Automatic closing that convinces: Whether fire protection, accessibility or burglary protection – with the door closers and hold-open systems from Gretsch-Unitas, you make your building safe and comfortably accessible.

for controlled opening and closing

The door closer range for standard and project solutions

Door closers provide much more than just automatic closing of doors. They reliably ensure that doors close securely both in daily use and in emergencies. In doing so, they make an important contribution to preventive fire protection and to keeping escape and rescue routes clear. By closing securely, they prevent the spread of fire and smoke within the building, significantly increasing the protection of people. In addition, door closers support burglary protection by ensuring a controlled and secure closing process, thus preventing the door from being left open unintentionally. Furthermore, they meet all requirements for barrier-free construction to ensure comfortable passage for all users.

Overhead door closers with guide rail
Overhead door closers with scissor arm
Concealed door closers
Free-swing door closers
Innovative and future-proof

Surface-mounted overhead door closers with guide rail

door closer set OTS 73x

OTS 73x

High comfort meets slim design: The OTS 73x impresses with the smallest closer body on the market. For single- and double-leaf fire and smoke protection doors with leaf widths up to 1400 mm.
overhead door closer OTS 634

OTS 634

For single-leaf fire and smoke protection doors with leaf widths up to 1100 mm.
OTS 634x overhead door closer

OTS 634x

For double-leaf fire and smoke protection doors with total leaf widths up to 2200 mm.
OTS 633 N overhead door closer

OTS 633 N

For single-leaf fire and smoke protection doors with leaf widths up to 950 mm.
Overhead door closer OTS 430 G

OTS 430 G

For single-leaf doors with leaf widths up to 900 mm.
Overhead door closer OTS 210 G

OTS 210 G

For single-leaf doors with leaf widths up to 850 mm.
proven technology

Surface-mounted overhead door closers with scissor arm

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OTS 536 overhead door closer

OTS 536

For single-leaf fire and smoke protection doors with leaf widths up to 1400 mm.
OTS 430 overhead door closer

OTS 430

For single-leaf fire and smoke protection doors with leaf widths up to 1100 mm.
OTS 210 overhead door closer

OTS 210

For single-leaf doors with leaf widths up to 1100 mm.
OTS 140 overhead door closer

OTS 140

For single-leaf doors with leaf widths up to 1100 mm.
Overhead door closer OTS 134

OTS 134

For single-leaf fire and smoke protection doors with leaf widths up to 1100 mm.
quality meets aesthetics

Concealed door closers

door closer set VTS 735

VTS 73x

For single- and double-leaf fire and smoke protection doors with leaf widths up to 1400 mm.
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VTS 634

For single-leaf fire and smoke protection doors with leaf widths up to 1100 mm.
Rebate door closer FTS 20 / FTS 24

Rebate door closer FTS 20/24

For single-leaf interior doors with leaf widths up to 1000 mm.
UTS 840 floor spring

Floor door closer UTS 840

For single-leaf swing doors with leaf widths up to 950 mm.
fire protection without obstacles

Free-swing door closers

Effortless and barrier-free passage through fire doors thanks to integrated electric free-swing function.

Door closer set OTS 73x FL – standard installation

OTS 73x FL – surface-mounted

For single- and double-leaf fire and smoke protection doors with leaf widths up to 1400 mm.
door closer set VTS 735 FL

VTS 73x FL – concealed

For single- and double-leaf fire and smoke protection doors with leaf widths up to 1250 mm.
All essential information at a glance

General questions about GU door closers

Our GU door closers offer innovative features for all standard and project solutions. Here you will find answers to the most important questions.

What types of GU door closers are available?

What functions do the adjustment screws on GU door closers serve and what settings can be made?

Are GU door closers suitable for use on fire doors?

Are GU door closers suitable for use on external doors?

Are GU door closers suitable for barrier-free construction?

Which standards do GU door closers comply with?

What should I do if the GU door closer does not close properly?

What types of installation are possible with GU door closers?

Is there a choice of colors for the visible components?

What formats or dimensions of doors are possible with the OTS program?

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