Product Introduction The feature is traction invert control the starting, speed, direction change and braking, which decreased energy consumption, have good electric-saving effect. Invert have shake-proof, damp-proof and dust-proof function, the control loop controlled by 24V, 0.5A light current, with good safety performance, with interlock function when direction change, which avoid damage if driver using anti-vehicle braking. The locomotive with simple construction, low defective rate, easy to maintenance. Main Characteristics 1. Pneumatic (or mechanical) sanding system to the rails. 2. The locomotive has two buffers with spring shock absorbers to achieve complete shock absorption against collisions. Equally, the motor is suspended from the chassis by a brace with springs. 3. The locomotive has two headlights (diodes LED), one in each direction 4. In order to achieve continuous and stepless speed regulation, they have an electronic speed controller with high reliability.