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Calzoni Hydraulic Motors
Radial Piston Motors
The Calzoni radial piston motors are designed for
superior performance and used in low speed-high torque (LSHT) applications.
These motors are found in applications throughout the world. They are
available in an extremely wide displacement range, 33cc – 23,033cc and
are pressure rated to 3,600psi continuous and 4,350psi intermittent.
The unique patented rotary motion design is achieved by use of a rotary
valve and telescoping cylinder (piston) movement. The shaft contains
an eccentric lobe and is rotated by a pressurized column of oil contained
within telescoping cylinders. The cylinders seal against the eccentric
lobe and actually push the shaft as they pressurize and extend. The
rotary valve is a precise timing system that is pressure balanced and
self compensating for thermal expansion. Coupled together, the rotary
valve and telescoping cylinders produce a motor with extremely high
mechanical and volumetric efficiency.
MR, MRE, MRV, MRVE, MRT, MRTE, MRFT Series
Displacement Sizes:
MR, MRE: 33cc - 8,200cc; fixed displacement
MR, MRDE: 300cc - 8,200cc; dual displacement
MRV, MRVE: 450cc - 8,200cc; variable displacement
MRT, MRTE, MRFT: 7,100 - 23,033cc; fixed displacement
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The unique patented rotary motion design is achieved by use of a rotary valve and telescoping cylinder (piston) movement. The shaft contains an eccentric lobe and is rotated by a pressurized column of oil contained within telescoping cylinders. The cylinders seal against the eccentric lobe and actually push the shaft as they pressurize and extend. The rotary valve is a precise timing system that is pressure balanced and self compensating for thermal expansion. Coupled together, the rotary valve and telescoping cylinders produce a motor with extremely high mechanical and volumetric efficiency.