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Automated Prison Doors

Groschopp worked with a manufacturer to create an automated system for moving heavy prison doors (weighing anywhere from 200-1200 lbs each). For this application, tight installation using a right angle reducer and the smallest possible motor was important. Because the prison doors would only be operating intermittently, Groschopp was able to use a smaller—and less expensive—PMDC motor. This infrequent operating also meant a heat sink wasn’t an essential part of the gearbox.

The DC motor matched with the 5:1 ratio right angle gearbox was able to meet the high torque and smooth operation requirements of the manufacturer. It was also important for the motor to be back-drivable so it could be manually operated in the event of a power outage. Groschopp tested 1.6 million cycles without failure to make sure this design would be a reliable solution for the manufacturer and end customers.


Challenges

  • Sufficient torque for smooth operation of 200-1200 lb doors
  • High security application, must be reliable
  • Right angle gearmotor with back-drivability

Solution

  • PMDC right angle gearmotor without a heat sink
  • Tested 1.6 million cycles
  • Compact design

 

About Us

Partnering with Groschopp means working with a small electric motor and gear motor manufacturer that strives for the American standard of quality. It means having a team of motor experts to find the best standard or custom solution for your application.

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How to use the Motor Search Tool

Narrow your search by selecting motor type, gearbox, voltage, and phase options for your desired motor.

Select a dominant variable: choose one of the three parameters to narrow your search. The selected variable determines which slider bar you will be able to manually move.

Use the slider corresponding to your dominant variable to further narrow your motor selection. The other sliders will automatically move to show available ranges based on the range of your selected variable.

Results will upload as your search criteria changes. If you have any questions regarding your results or how to use the search tool, you can chat with us using the green tab on the left-hand side of your screen.


Note: Groschopp Universal motors are custom built to fit your application so no additional options are available to narrow the search. Selecting the Universal motor type will prompt a message taking you to the Universal product page.

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One of our team members would be happy to help. Contact us at 800-829-4135 or by email at sales@groschopp.com. You can also chat with us using the green tab on the left side of your screen.

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Universal Motors

Groschopp Universal motors are custom built to fit your application so no additional options are available to narrow the search. Standard frame sizes and motor features can be found on the Universal page.

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