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Hydraulic Pump – Electric Supply AGE
Designed for collaboration with all types of hydraulic torque wrenches. The protection index for the units is IP54 and the maximum working pressure may reach up to 800 bars.
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An electric torque wrench is a combination of a planetary transmission with an intermediate transmission and an electric drive. The drive incorporates an electric motor and an electronic control circuit. Adjustment of the tool with setting the desired torque is enabled by the torque controller. An electric tightening machine can be also referred to as an automatic torque device with adjustable torque suitable for tightening and loosening of bolts.
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On the contrary to hydraulic torque wrenches the hydraulic bolt tensioners enable initial tensioning of bolts/studs without application any torque since the tensioning force is applied in line with the central line of the bolt/stud usually towards the expanding direction. Therefore the pre-tensioning force of bolts is independent on the friction coefficient. The bolt tensioners are actuated by means of a hand pump or electric pump or pneumatic pump with the output pressure of 800 or 1600 bars depending on the unit version. Optional and customized designs of the bolts tensioners with various values of pre-tensioning force, size and application procedures are available upon individual orders.
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An electric torque wrench is a combination of a planetary transmission with an intermediate transmission and a drive provided with a pneumatic motor. The torque wrench collaborates with the pressure control unit that is made up of a water trap, an oil lubricator for compressed air and a manometer.
Adjustment, i.e. setting of the desired torque is carried out by adjustment of the corresponding air pressure that is indicated on the attached monometer.
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OSSA Machinery Works offers a new hydraulic pumps designed to supply hydraulic bolt tensioners. The power pack offers unsurpassed technical parameters and enables very fast operation with a wide range of pre-tensioning devices.
Operation of the remote control device (RCD):
a) ON/OFF button to switch the electric motor on and off
b) depressing the button 1: pressure is supplied to advance the piston of the pre-tensioning unit until the already preset pressure is reached,
c) releasing of the button 1: pressure is kept constant, the piston remains in the advanced position. The motor remains off.
d) depressing the button 2: the unit is depressurized, the piston of the pre-tensioning unit is retracted to its initial position (lowered)
