This powerful electromagnet can be used to lift as well as hold a metal part in place. A simple switch or micro-switch can be used to activate the electromagnet directly with 12 volts and 330 mA.
This is a high torque geared DC motor with a 90 degrees output shaft. It consists of a DC motor with a metal worm gear mated to a transmission. It is capable of delivering adequate torque for your needs such as situations that require high amount of torque without the precision of a stepper motor (i.e. opening a door or a window mechanism, small winch, diy kits, etc.)