HEU Hydraulic Expansion Unit
A compact and easy to install unit to provide bolt expansion for bolters, and other mining and tunneling machinery.
- Reliable bolt expansion
- Easy to install
- Can be used with different bolt sizes because of adjustable pressure level
- Safe and easy to operate
- Two-year or 2000 hour warranty
Hydraulic Expansion Unit can be operated manually with a pistol or by machine.
How Does The Hydraulic Expansion Unit Work?
HEU Hydraulic Expansion unit utilizes base machine’s hydraulic system as power source.
- Hydraulic oil flow is led to the unit through the pressure line
- The unit produces high-pressure water that is used for expanding rock bolts. The unit is connected to water supply for the operation.
- The unit monitors the expansion and releases the bolt automatically when the correct water pressure level is reached.
- The hydraulic oil is led back to carrier machine’s hydraulic oil tank through the return line
Used in industries
Drilling, Mining and Quarrying
- Rock bolt expansion pistol (suitable for 31/42mm tools)
- Rock bolt expansion tools 31/42mm RST
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