Bremssysteme
Actuator
Actuator ACX5000-E
The industrial disc brake actuator ACX5000-E is a powerful stationary clamping. Even under high torques, the position,
representative of the HEMA actuator series with electro- once clamped, is retained reliably.
magnetic opening function. All variants of this actuator series The brake lining is fitted on a user friendly mount, so replacing
are spring accumulator brakes whose internal pressure brake linings is easy and, in most cases, without the need to
springs store the energy for generating the clamping force. remove the calliper. Furthermore, the clamping forces are ap-
As a result, all versions of the actuator ACX5000-E can also plied to the centre of the brake linings, yielding a particularly
be used as a failsafe safety brake. homogeneous friction contact pattern. This promotes braking
and retaining capacity and distributes evenly the wear on the
brake lining and disc.
Applications
The industrial disc brake actuator ACX5000-P has been
designed specifically for use on rotating brake discs, yet is also
suitable for linear clamping rails. Owing to its operating
principle, this is also ideal as a retaining, nonstop, operating,
and safety brake in general machine and machine tool
applications.
Operating range of the brake
The industrial disc brake actuator ACX5000-P is an IP 54 de-
sign, i.e. for applications in ambient temperatures ranging from
+5 °C to +60 °C.
High precision in
braking and clamping Optional equipment Inductive sensors for monitoring the operating state
Actuator ACX 5000-E Warning prior to reaching the brake linings’ wear limits
Temperature sensors for additional status monitoring
An electromagnetic disengage mechanism serves to open the Display on the controller housing
brake actively. At the same time, the double acting clamping Actuation via bus interface
magnet allows operations on the industrial 24 V rating level Status prompts to the internal controller (when connected
and safeguards a minimum power draw while the brake is to bus interface)
open. In addition to direct actuation, other equipment variants Special versions with sintered or rubber brake linings
feature control and status monitoring via industrial bus inter- Clamping slides for easier installation/removal
faces. The industrial brake actuator ACX5000-E combines
in the one assembly the power of a disc brake with the
positioning accuracy of a clamping system.
Also, the virtually zero backlash guide system for the brake
linings exhibits extremely high tangential rigidity. This gives
rise to this actuator series’s characteristic high precision in
Industrial disc brake actuator ACX5000-E
Rated clamping force 5 kN
Nominal coefficient of friction 0.35
Operating voltage 24 - 30 V DC
Max power draw (briefly during opening) ≤ 900 W
Power draw (permanent retention) ≤ 5 W
Max permissible lining wear 5 mm per lining
Permissible lining wear without readjustment 0.5 mm per lining
Installation space (approx L x W x H) 260 x 190 x 225 mm
Brake disc (or clamping strip) thickness 15 mm (user defined 10 – 30 mm)
Friction ring (or clamping strip) width ≥ 60 mm
Weight 25 kg
Actuator ACX5000-P
The industrial disc brake actuator ACX5000-P is a powerful
representative of the HEMA actuator series with pneumatic
opening function. All variants of this actuator series are spring
accumulator brakes whose internal pressure springs store
the energy for generating the clamping force. As a result, all
versions of the actuator ACX5000-P can also be used as a fail-
safe safety brake.
In addition, the pneumatic boost function can double the clam-
ping force of the spring loaded brake for maximum braking
and retaining torques. In addition to direct actuation, other
equipment variants feature control and status monitoring via
industrial bus interfaces.
The industrial brake actuator ACX5000-P combines in the one
assembly the power of a disc brake with the positioning accu-
racy of a clamping system. Also, the virtually zero backlash High precision in
guide system for the brake linings exhibits extremely high tan- braking and clamping
gential rigidity. This gives rise to this actuator series’s charac-
teristic high precision in stationary clamping. Even under high Actuator ACX5000-P
torques, the position, once clamped, is retained reliably.
Operating range of the brake
The brake lining is fitted on a user friendly mount, so replacing The industrial disc brake actuator ACX5000-P is an IP 54 de-
brake linings is easy and, in most cases, without the need to sign, i.e. for applications in ambient temperatures ranging from
remove the calliper. Furthermore, the clamping forces are ap- +5 °C to +60 °C.
plied to the centre of the brake linings, yielding a particularly
homogeneous friction contact pattern. This promotes braking Optional equipment
and retaining capacity and distributes evenly the wear on the Inductive sensors for monitoring the operating state
brake lining and disc. Warning prior to reaching the brake linings’ wear limits
Temperature sensors for additional status monitoring
Applications Display on the controller housing
The industrial disc brake actuator ACX5000-P has been Actuation via bus interface
designed specifically for use on rotating brake discs, yet is also Status prompts to the internal controller (when connected
suitable for linear clamping rails. Owing to its operating to bus interface)
principle, this is also ideal as a retaining, nonstop, operating, Special versions with sintered or rubber brake linings
and safety brake in general machine and machine tool Clamping slides for easier installation/removal
applications.
Industrial disc brake actuator ACX5000-P
Rated clamping force 10 kN
Rated clamping force with booster 30 kN
Nominal coefficient of friction 0.35
Opening pressure 4.6 bar
Maximum boost pressure 6 bar
Max permissible lining wear 5 mm per lining
Permissible lining wear without readjustment 0.5 mm per lining
Installation space (approx L x W x H) 200 x 190 x 225 mm
Brake disc (or clamping strip) thickness 15 mm (user defined 10–30 mm)
Friction ring (or clamping strip) width ≥ 60 mm
Gewicht 25 kg
Our range of service
Protection systems
Clamping and braking systems
Machine safety windows
Spin windows
LED Lighting systems
Service, logistics and maintenance
HEMA Maschinen- und
Apparateschutz GmbH
Seligenstädter Straße 82
63500 Seligenstadt, Germany
Phone: +49(0)6182 773-0
Fax: +49(0)6182 773-35
E-Mail: info@hema-group.com
Web: www.hema-group.com
Released: September 2017. All rights to make changes reserved. Reprinting
and publication only with written permission of HEMA. All technical data and
drawings in this catalogue show standard guide values that may differ in the ac-
tual situation. Please check in parti cular the drilling patterns
and installation situation. Values in dic ated are not binding; the value indicated
on the order confirmation always applies. RotoClamp, LinClamp and PClamp
are developments of InnoTech Engineering GmbH. DiskClamp, MClamp and
Actuator are developments of HEMA Maschinen- und Apparateschutz GmbH.