Denison Hydraulics

Denison Hydraulics

Hydraulics Online – Supplying you with Dension Hydraulics and Denison Hydraulic Vane Pumps and Motors, Hydraulic Piston Pumps and Motors, Hydraulic Radial Piston Motors and other Denison Hydraulic Equipment and Components

Parker Hannifin, formerly Denison Hydraulics, is a leading industrial manufacturer providing highly engineered hydraulic fluid power systems and hydraulic components. Denison Hydraulics products have a multitude of applications: from mobile equipment used in the construction, demolition, agricultural, mining and utilities industries to machinery used in industrial manufacturing and marine equipment used in both commercial and military sea vessels.

The Denison Hydraulics range of pumps includes:

Denison Radial Piston Motors: Denison Hydraulics also manufactures fixed displacement, dual displacement, and variable displacement radial piston motors under the Calzoni brand.


Denison Calzoni radial LSHT (LOW Speed High Torque) hydraulic motors are available in many configurations including single and 2 speed versions, with models including the MR series ranging from 33cc up to 7000cc and the MRE series ranging from 330cc up to 8200cc. Larger displacements are available in the MRT, MRTE and MRTF hydraulic motor series ranging 7100cc up to 23000cc displacement. Dual displacement radial piston motors are available in the MRD and MRDE model series and variable displacement radial piston motors in the MRV and MRVE series range from 300cc up to 8200cc.

We can offer Italgroup radial piston motors as direct equivalents to the Denison Calzoni motors; useful if you’re up against particularly tight timescales or budgets.

Denison Hydraulics Valves: Denison Hydraulics manufacture four types of hydraulic valves including: directional control valves which alter the path of pressurized fluid through the hydraulic systems; pressure control valves which regulate the pressure of the hydraulic fluid; flow control valves which match the hydraulic fluid’s flow with the requirements of the system; and hydraulic check valves which allow fluid to pass in one direction and not the other.

Denison Hydraulics valves are used in a variety of commercial settings, including injection moulding, metal and material forming, mobile equipment such as cranes, and marine systems such as ship-mounted winches. They are one of the few hydraulic manufacturers of flange mounted pressure control valves, a design that enables the hydraulic valve to be attached directly to another hydraulic component, versus more traditional valve designs that must be connected to the associated hydraulic components with hydraulic lines, which tends to be more expensive and less effective at controlling leaks than flange mounting.

Hydraulics CatalogueVisit our catalogue to see some of the hydraulic components we have within our range. If you can’t find what you’re looking for then call us or go to our Contact page to enquire online.

Call us now on: +44 (0)845 644 3640 or enquire online and "let us take the pressure!"

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Phone:+44 (0)845 644 3640

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