KTR-STOP® TB Thruster
acc. to DIN 15430
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
44414 EN
9 of 17
4
Please observe protection
note ISO 16016.
Drawn:
2020-11-02 Shg/Mro
Replacing:
KTR-N dated 2020-04-08
Verified:
2020-11-02 Shg
Replaced by:
When switching off the current or in the event of power failure the pump stops pumping and the
piston rod returns into its original position.
If used as a brake thruster either the brake spring (c-spring) installed in the thruster or an external
force such as a braked weight or brake spring support the return stroke. Please consider with the
application that the usable lifting force is defined by the difference of the hydrodynamic force on the
piston rod generated in the thruster and the counteracting brake force.
The lifting and lowering times depend on the load and the temperature-related viscosity of the
hydraulic oil. They can be set with devices having an integrated lowering or global valve.
If the standard lowering time of the lifting piston is not sufficient, the standard lowering time can be
reduced by parallel operation of three capacitors. This arrangement of capacitors reduces the
deceleration time when turning off the motor resulting in particularly quick reduction of the oil
pressure. In this case the thruster must be triggered by a separate contactor.
The hydraulic unit of the tank (component 5) is located in a closed housing (component 6). The oil
level can be inspected and filled up externally through the oil filler hole (component 9).
Electrohydraulic thrusters are supplied ready for assembly and painted and are provided with oil
filling. They have to be fastened in the bores of the fork-type base (component 1) and the piston rod
head (component 10) via pins.
The electrical connection is made in the terminal box (component 3). Devices from type 1250 to
4500 have a dust cover on top of the piston rod serving as additional protection against dirt and
damage.
As described above, the thruster comprises a three-phase asynchronous motor, a closed hydraulic
system and a work cylinder with piston and lifting rod in a housing.
Mounting can be made in upright position (piston rod faces upward) or with sizes 50 and 60 mm in
horizontal position (terminal box and tank face upward) and in any intermediate position. Types with
a stroke of 120 mm can only be installed vertically. The fork-type base (component 1) along with the
terminal box can be turned by 90° to the right or left (please specify in your order), the piston rod is
turnable.
STOP
The surface temperature can rise to more than 100 °C.
Danger of burning!
The operation can be performed with ambient temperatures from -20 °C to +50 °C.
For any other temperature conditions please consult with KTR.
4
KTR-STOP
®
TB Thruster acc. to DIN 15430
4.2 Operating description of thruster acc. to DIN 15430
5
Mechanical version
5.1 Installation position
5.2 Unit temperature and ambient temperatures