I think a windshield wiper assembly from ordinary cars can be applied together with the timing-circuit (fast -slow) to provide a kind of motor that is available in most places.

It has also got a gearbox and levers to provide sufficient force, these parts are also tested to last and endure rather high loads over some time.

The temperature of the motor could be monitored by a an ordinary thermometer. And it also lend itself to run on battery-power, or other low-voltage supply.