SPMT, Self Propelled Modular Transporters

China SinoTrailers has over 10 years‘ experience in designing and manufacturing SPMT

Self propelled modular transporter
Self propelled modular transporter

What is SPMT

SPMT is known as self-propelled modular transporter. It is a kind of hydraulic platform trailer equipped with a powered diesel engine or an elecrical engine to drive itself to move, lift and steer, no need the help of tractor or prime mover.

Electrical engine with lithium battery adopted in our newest generation of SPMT which is a green power vehicle and easy to transform to AGV(automatic guided vehicle).

Specifications of Self-Propelled Modular Transporter

Custom design is available, please feel free to contact us

Type G3.0 G3.0E N3.0-1 N3.4
Platform Width (mm) 3,000 3,000 2,990 3,400
Wheelbase (mm) 1,500 1,500 1,550 1,600
Platform Height (mm) 1,175±300 1,220±300 1,070±300 1,070±210
Min. Height (mm) 875 920 770 860
Max. Steering Angle 55° 100° 50° 45°
Steering Way Mechanical Electronic Mechanical Mechanical
Type L2.0 L2.29 L2.4 S2.43
Platform Width (mm) 2,000 2,290 2,400 2,430
Wheelbase (mm) 1,000 1,150 1,150 1,400
Platform Height (mm) 530+200 630+410 630+410 1,500±300
Min. Height (mm) 530 630 630 1,200
Max. Steering Angle 90° 90° 90° 90°
Steering Way Electronic Electronic Electronic Electronic

Configuration of SPMT

  • Chassis frame, adopts Q690 high tensile steel, high safety factor.
  • Hydraulic pendulum suspension set, consists of pendulum arm, lifting cylinder, axle (normal axle, drive axle and brake axle) and tire (solid or pneumatic industrial tyre).
  • Hydraulic lifting system, 3 or 4 points supporting system, equipped with backup safety hydraulic line, make sure cargo and SPMT stable if any leakage happened. Hydraulic oil cylinder in the pendulum axle is able to compensate uneven road surface to make sure cargo platform remain in horizontal position and average payload distribution on each axle.
  • Power system (Power Pack Unit), supply power for lifting, moving, steering, braking and illumination.
  • Driving system. Hydrostatic pressure came from PPU to hydraulic motor and cylinder to power the SPMT. Drive axle mounted with Rexroth reducer.
  • Steering system. Mainly has two steering ways, one is mechanical steering, using tie rod for steering, max. steering reaches up to 50 degrees. Another is hydraulic and electronic steering, adopting rack and pinion on each suspension, steering angle is over 130 degrees, could make the SPMT move to any direction you need, even to move laterally like a crab. The system embedded with angle sensor to monitor its running, and guarantee precise steering.
  • ASR system. Embedded electronic control system make sure each wheel spin in same speed, and no-slip and skid when the SPMT accelerates.
  • Braking system. Different from modular trailers using air pressure as a power to brake, China SPMT adopting hydraulic pressure and cylinder to realize accurate braking.
  • Circuit system. Power whole SPMT’s lighting system, could be LED illumination to maintain long working hours.
  • Control system, with wire control panel and wireless control panel.

Self-propelled modular transporter is widely used as a perfect solution to transport modules such as, oil platform rigs, factory modules, chemistry vessels, nuclear reaction tower, harbor crane in shipbuilding, high speed railway bridge construction, windmill construction, offshore modules (load-in/out), harbor logistics, and other engineering logistic projects. Industries like construction, chemical engineering, refinery, metallurgy, ocean engineering, conventional energy (oil and gas) and eco-energy all have an increasing demand on SPMT.

Considering of steering modes, SPMTs can be divided into two types:

1. Tie rod steering type (hydraulic and mechanical steering). Non-driving axles module is hydraulic modular trailer, the max steering angle is around 50°.

2. Independent suspension type (electronically and hydraulic steering). Max steering angle is up to 130°, this type SPMT can move sideways like a crab.

Features of China SPMT

  • The steering monitoring system ensures safety of steering process.
  • Height and angle of PPU is adjustable, to adapt different working conditions. Even to disassemble PPU and put it on top of China SPMT to reduce total length, then get high trafficability, enable its efficient move in hairpin turn or narrow space.
  • Self-adapting hydraulic system guarantee cargo platform level when SPMT running on uneven roads.
  • Accurate movement and steering make sure it has high performance in modules connection and assembly.
  • The combination system enables modules could be connected laterally and longitudinally to adapt different cargo sizes and weights. Also, modules can be coupled with hydraulic hose and electrical cable to transport oversize cargo with relatively lightweight, just need less quantity of SPMTs to work in “soft-connection” mode.
  • When preset a working program (moving and steering mode), China SPMT can work automatically.

What SinoTrailers Offers:

  • All kinds of China-made SPMTs, compatible with Scheuerle, Goldhofer, Cometto, Kamag and Nicolas.
  • SPMT parts, able to replace parts of original SPMT made in Europe.
  • Upgrade hydraulic trailers to SPMT.
  • Service of door-to-door refurbish of SPMT.
  • Door-to-door service of replacing malfunctioned parts.
  • Trouble-shooting service.
  • SPMT operator training and out-sourcing service.

Want to move hundreds of tons’ cargo for long-distance road transport? You probably need modular hydraulic axle trailer.

SPMT trailer in South Africa
SPMT trailer in South Africa

SinoTrailers – A Factory of China SPMT, self-propelled modular transporter