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Electrical Tube Rolling Systems |
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Wattage Based Torque ControllersTube expansion can best be done by expanding tubes at a set torque value. Torque is 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 resulting action will be consistent and each rolled tube will have been rolled to the exact same value. The only way to achieve this is by using a wattage based torque controller. If using a current based controller, the only way to achieve a consistent roll is to have a stable supply voltage. This something which is very rare. Most of North America suffers from unstable voltage and a 15% plus or minus from the stated supply voltage is normal. So, with the supply having a possible 30% fluctuation the actual rolling performance can vary by 30%. With a wattage based rolling system the roll is consistent because voltage fluctuations do not alter how much wattage the driver is drawing from the system. As the torque increases as the tubes are expanded the wattage increases to the set value and all to tubes are rolled to perfection.
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The units above are the PR-2000. You have the option of an internal or external printer.
Download Full Specifications on this unit:-
TCW Torque Controller
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| Electric Drives for use with Torque Controllers | |
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German excellence giving endurance strength and reliability.
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Electric Drivers Download Full
Specifications on this unit:-
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