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Thermal Actuators

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Thermal actuators are paraffin powered motors that harness the power of thermal expansion to move a piston to a precise distance under a specified load. These actuators are so precise they can be engineered to move within several thousandths of an inch, and work in any temperature range from 30F to 300F.

Our custom expansion material blend gives us an edge over our competitors standard operating temperatures. When you choose Rostra's thermal actuators, the customer is in complete control of the temperature and range needed. You can choose any temperature and range from 30F to 300F which is the largest selection available today.





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Item #

Temperature Range (ºF)

Working Stroke (in)

Max Stroke (in)

Max Load (lbs)

Min Return Load (lbs)

5028 30-300 .090-.250 .300 46 25
5024 30-300 .040-.300 .390 65 20
5100 30-300 .050-.200 .225 35 15
5183 30-300 .060-.250 .300 70 30
5019 30-300 .050-.450 .500 50 20
5065 30-300 .060-.300 .325 25 12
5933 30-300 .010-.150 .190 20 7
5861 30-300 .090-.210 .250 25 20
  Results 1 - 8 of 8 1