1. Full metal shell, better product protection 2. DC12V (also suitable for 9.5-13.0V) 3. When the motor is working, please do not work with overvoltage, otherwise it may cause product abnormalities 4. The working stroke is 90mm, and the speed is about 5mm/s; 12V type rated torque 0.3-0.4kg/cm, stall torque 3.2-4.0Kg/cm 5. The product has a forward and reverse motor control protection board (used in the excavator model, directly connected to use, no control board required) The control panel is only for experienced users, please use it with caution, the product damage caused by this does not support return The reverse connection of the positive and negative poles of the power supply will cause circuit damage Push Rod Excavator Parts Full Metal Electric N20 Control panel parameters: 1) Power supply voltage 2V-10V 2) When the input terminal is suspended, the motor will not malfunction 3) No need to worry about motor stalling color:Yellow Material:Metal Package Contents: 1 x Push Rod Excavator Parts Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.