This gearbox uses an M3 threaded rod as the output shaft. Thanks to this mechanism, it is now possible to create slow and smooth lifting and lowering movements. An M3 nut is screwed onto the threaded rod for this purpose. When the nut is fixed to an object (e.g., landing gear supports), these will move slowly up or down depending on the polarity of the gearbox. The gearbox can be controlled, for example, by a speed controller.

Hydraulics, as used in excavators, can also be effectively represented with this gearbox. Depending on the voltage (2 – 18 V), speeds of 50 – 450 RPM can be achieved.

At 20 turns per cm, the following distances are covered:

• 2 volts: 2.5 cm/min
• 6 volts: 7.5 cm/min
• 12 volts: 15 cm/min

The metal geared motor operates with voltages between 2 V and 12 V, achieving speeds of 50 – 450 RPM (depending on the voltage). The metal gears used in the gearbox ensure a long lifespan and smooth operation. The threaded rod, with a length of 50 mm, can be cut to any desired length.