Leveraging on our enriched industry experience, we are engaged in manufacturing and exporting a huge gamut of Hydraulic Tube Expansion Machine. It is compact, light weight, durable solid state based unit.
It is designed to provide accurate ampere/torque control for SUBZERO electric expansion drives.
Fully solid state design – no moving part – no wear and tear parts- no noise – consequently long life.
Drive selector knob provided on panel to set maximum torque range for various drives. Trip time adjustable from 01 to 10sec
Adjustable reverse time from 01 to 100sec
Pause time (time interval between cycles) adjustable from 01 to 100sec.
Manual reverse push button provided on panel to reverse the drive in case of emergency.
Hand (trigger) mode or foot switch mode available.
Auto cycle is provided for repeat operation without operating the trigger.
MCB has been provided to protect the controller and drives against over current by short circuit.
Electric Tube Expansion Systems & Electric Drives for use with Torque Controllers
Voltage Stablizers / Transformers
Accessories for Electric Tube Expansion Systems
Hydraulic Thrust Expansion Systems
Hydraulic Tube Expansion Systems (Hydex)
Accessories for Hydraulic Tube Expansion Systems
Pneumatic Rolling Drives
Flexible Balance Arm
Why a "Wattage' Based Torque Controller is Right and a “Current” Based Torque Controller is Wrong.
Tube expansion can best be done by expanding tubes at a set torque value. Torque is nothing but a rotary force acting on the tubes. For a given drive, the 'RPM' being constant, torque becomes proportional to the drive power.
Hence, if the drive power is controlled for tube expansion, the results will be excellent. All tubes will be expanded equally. Supply voltage fluctuations which are very common, do not affect the performance of a wattage based controller as the controller will trip at a set wattage irrespective of the supply voltage.
In case of a current based or electric tube expansion systems torque controller, the drive current can become proportional to the torque if & only if the supply voltage is absolutely constant. This is never the case. Practically, the supply voltages vary as much as 20% to 25%. This directly affects the expansion results as the drive trips at a set current. That means for a 20% higher supply voltage, the tubes will be effectively expanded by 20% more torque than the required one using the electric tube expansion systems. Hence tubes will be over-expanded. For supply voltages less than normal, tubes will be under expanded proportionately.
Since, the supply voltages fluctuate quite often, the expansion results of current based controllers will be unpredictable. They will have no consistency.
It is our experience that a seasoned operator will more consistently expand tubes with just a drive than if he is to use a current based Torque Controller. Of course if he were to use a Wattage based torque controller, he would achieve near perfect tube expansions all the time.
Power master is the only company in the world to offer you a choice of 2 Wattage based Torque Controllers.