HYDRAULIC EXPANDING UNIT FOR ROCK-BOLTING
HEU 320-40E
March 2011
HYDRAULIC HIGH PRESSURE PUMP UNIT HEU 320-40E IS DESIGNED FOR RELIABLE AND CONTROLLED
EXPANDING OF ROCK-BOLTS.
HEU-PUMP HAS OUTFITTED WITH ELECTRIC LS-FUNCTION ENABLE USE IN ELECTRO-HYDRAULIC PUMP
CONTROLS.
HEU-PUMP IS A COMPACT UNIT ASSEMBLED ON A STEEL CHASSIS BEING COMPRISED OF A PRESSURE
CONVERTER WITH ALL NECESSARY COMPONENTS AND INSTRUMENTATION.
HEU-PUMP CAN BE INSTALLED TO ANY MINING MACHINE AND OPERATED WHETHER FROM A PLATFORM OR
FROM GROUND.
CONNECT AN EXPANDING GUN AND WATER HOSE OF PROPER LENGTH AND PRESSURE CLASS TO HEU-PUMP
ASSURES EFFECTIVE CARRYING OUT OF ANY BOLTING PROJECT.
HYDRAULIC
CONNECTIONS
WATER
CONNECTIONS
P T
LS
WP
S DR
pressure return
pressure intake
drain
1/2”
1/2”
1/4”
3/8”
3/4”
1/2”
DYNASET HEU-pump can be positioned deliberately, keeping in view following preconditions:
1.
Easy service access to the unit should be ensured.
2.
Pump should be mounted on sufficiently horizontal surface to enable proper working of leakage detecting
bores, which are found on the bottom surface of a pressure converter. Leakage detecting bores are made to
the zones, which separate oil and water chambers from each other.
If the draining from leakage detectors exceeds rate of 10 drops per minute, pump sealings should be
replaced. The drain fluid can be water, hydraulic oil or their solution.
You can choose deliberately how to make pump’s installation to your carrier: either fixed or as a quick
release unit. In later case HEU-pump is easily detached and re-attached to carrier’s hydraulic system with
quick couplings, when pump can be moved from one carrier to another when necessary.
505
350
NOTE !
DRAIN LINE OF THE HEU-PUMP IS PRESSURISED WHEN THE UNIT IS IN OPERATION! THEREFORE IT IS
NECESSARY TO SECURE THE LINE WITH APPROPRIATE FITTING AND HOSE POINTING THE DRAIN BURST
UNDER THE MACHINE OR OTHER SAFE DIRECTION.
INTRODUCTION
2/ 5
M8
Serial n: XXXXX-XX
Serial n: XXXXX-XX
0
100
200
300
400
200
WP
LS
P
T
WATER
WATER PRESSURE
S
265
200
210
HEU 320-40E