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A ballast tractor is a specially weighted tractor unit of a heavy hauler combination. It is designed to utilize a drawbar to pull or push heavy or exceptionally large trailer loads which are loaded in a hydraulic modular trailer .
Nicolas Tractomas is a heavy-duty built-to-order ballast tractor specifically to tow hydraulic modular trailers and road trains used for movement of oversize loads manufactured by French manufacturer Nicolas Industrie based in Auxerre. The tractor was bespoke build with preferred engine, gearbox, drivetrain and ballast with a Renault Kerax cabin.
Ballast tractors can however provide traction and braking for the SPMTs on inclines and descents. SPMTs are used in many industry sectors worldwide such as the construction and oil industries, in the shipyard and offshore industry, for road transportation, on plant construction sites and even for moving oil platforms . [ 2 ]
The Rotinoff Super Atlantic is a 6×4 ballast tractor made by the British company Rotinoff Motors Ltd. The tractor was designed for GCW of 200 tons with the help of a Rolls-Royce six cylinder supercharged engine producing almost 335 bhp with support of six speed main gearbox and a three speed auxiliary box for critical conditions.
In some cases, a heavy hauler is designed and constructed to move a particular load on a one-off or short-term basis. An example is the self-propelled antenna transporter for the ALMA radio telescope project, a 130-tonne (130-long-ton; 140-short-ton) 28-wheeled rigid vehicle designed to carry and place 115-tonne (113-long-ton; 127-short-ton) radio telescope antennas up a mountain to an ...
A large ballast tractor pulling a load using a drawbar General duty tow hitch from VBG on a truck and a drawbar on a trailer, showing a connected drawbar eye Rockinger drawbar coupling, in which the drawbar eye gets locked. A drawbar is a solid coupling between a hauling vehicle and its hauled load. Drawbars are in common use with rail ...
A short ballast body was mounted behind the winch. There were closed tool compartments along both sides, two open containers in the front, and a bottom-hinged tailgate. The spare tire was mounted in the front. The box could hold 18,000 lb (8,200 kg) of ballast to increase traction on the rear tandem axles. [3] [5] [12] [14]
Sisu K-50SS is a six-wheel-driven ballast tractor made by the Finnish heavy vehicle producer Suomen Autoteollisuus (SAT). The vehicle can generate a 388 kN drawing force and it was used for pulling flatbed trailers. [2] Only one unit was produced in 1961 and it is the largest roadworthy motor vehicle ever built in the Nordic countries. [2]