what is SPMT
Self-propelled modular trailer (SPMT) is a specialized transport vehicle that integrates mechanical, electrical, and hydraulic functions, with complex functions. Europe is the birthplace of self-propelled modular trailer, which have long monopolized the international market. Major manufacturers include Scheuerle from Germany, Goldhofer from Germany, Kamag from Germany, Nicolas from France, and Cometto from Italy
how SPMT works
- The SPMT trailer adopts electronic control static pressure drive system, electronic synchronous control hydraulic lifting system suspension, all wheel independent steering, frame hydraulic leveling, and three-point/four point support technology.Which can achieve carpooling and intermodal load function. The functions of the drive, lifting, and steering systems all controlled by a microprocessor unit which connected to the CAN bus.
Due to its high maneuverability, flexible steering, good coordination, and low environmental requirements, SPMT is particularly suitable for equipment transportation on engineering sites, as well as long-distance and short distance transportation of segmented and large sections. It has widely used in the shipbuilding process and cannot be replaced by other transportation tools.
SPMT adopts a static pressure drive system, which includes a diesel engine and a hydraulic oil pump connected to the drive, steering, and lifting systems. The adjustable axial piston pump works on the piston motor install on the drive shaft and equipped with an electronic control system to improve the efficiency and safety of the drive system.
The SPMT drive system operates in a closed loop, and its control and regulation functions are the same as those of the automatic transmission system, so there is no possibility of diesel engine overload or unexpected shutdown during vehicle operation. By accelerating the foot pedal to adjust the speed of the diesel engine, the amount of hydraulic oil driving the pump is automatically adjusted according to the speed of the diesel engine. Correspondingly, the gear ratio between the driving pump and different hydraulic motors will also change, thereby changing the walking speed.
The self-propelled modular trailer (SPMT) equipped with an electronic overspeed safety protection device to prevent the hydraulic motor from over speeding and shifting out of gear with other hydraulic motors when the vehicle is running on slippery ground or when the driving suspension loses traction. The device can also serve as an independent locking device to prevent individual driving wheels from moving.
SPMT from Ruitrailer
SPMT trailer from us is developed based on Germany Scheuerle 2.43 SPMT, with same standard of designing, manufacturing and working standard as original, and optimization on man-machine interaction.
Optional axle load capacity of 40 ton and 48 ton.