A closed circuit therefore allows a far more compact construction. The kinetic energy from braking can also be fed back to the engine via a one-to-one linkage, something which is impossible with an open system, where the braking energy is converted to heat, requiring a larger quantity of oil. This delivers higher efficiency than an open circuit, as fewer valves and restrictions are required. Drive to the ground wheels for example uses a closed circuit. The pumps can operate on either open or closed circuits. Which pump does what differs between the two brands. ![]() There are no mechanically driven parts on the spray machines, while the hydraulic pumps are driven by the diesel engine, including both adjustable pumps and gear-driven pumps with a fixed delivery per revolution. Four-wheel drive, adjustable track width and height all add to the impressive versatility of this chassis. The chassis, specially developed for spraying machines, ensures that the motion of the vehicle is not transferred to the spray boom. The Pantera has a 218 hp engine and a twin piston membrane pump delivering 530 l/min. Both machines have a pendulum tandem chassis with individually sprung wheels. The Amazone Pantera has a tank capacity of 4,500 litres and boom widths from 21 to 40 metres. The spray pump options include a centrifugal pump with a capacity of 700 l/min or a twin piston membrane pump of 560 l/min. The smaller engines deliver 205 or 282 horsepower, the larger models go as high as 320 hp. The Agrifac Condor features tank capacities from 3,400 to 8,000 litres and boom widths from 24 to 51 metres. And the same is true for the hydraulics, with different teams of engineers here at Motrac working independently on the two models. These two machines started out with an identical format, but both brands have been following their own individual development paths for some time now. Motrac have developed the hydraulics for their self-propelled spraying machines, including the hydrostatic drive. Our client base includes both Agrifac and Amazone. Motrac Hydraulics offer hydraulic system solutions for small and medium manufacturers (see TREKKER 325). ![]() The system elements are precisely coordinated, with components carefully selected to deliver the highest possible efficiency. There's a lot more to this than a simple hydraulic pump. Spraying Machine Hydraulics Motrac Hydraulics have developed the hydraulic systems for spraying machines for a number of manufacturers, including Agrifac and Amazone.
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