Sauer Danfoss 45 Series Pump Parts

Sauer-Danfoss comes from Danfoss Fluid Power in Denmark, and Sauer in Germany, among which Danfoss was founded in 1933 and began manufacturing hydraulic components in 1961. For more than eighty years, they already have advanced technology and mature experience.

Sauer-Danfoss is one of the most famous manufacturers of piston pumps in the world. They produce a full range of pump parts, among which Sauer-Danfoss Series 45 G Frame open circuit piston pumps convert input torque into hydraulic power. Rotational force is transmitted through the input shaft to the cylinder block. The input shaft is supported by tapered roller bearings at the front and rear of the pump and is splined into the cylinder block. A lip-seal at the front end of the pump prevents leakage where the shaft exits the pump housing. The spinning cylinder block contains nine reciprocating pistons. Each piston has a brass slipper connected at one end by a ball joint. The slippers are held to the swashplate by the spring retainer and block spring. The block spring also holds the cylinder block to the valve plate. The reciprocating movement of the pistons occurs as the slippers slide against the inclined swashplate during rotation. One half of the cylinder block is connected to pump inlet and the other half to pump outlet, via the valve plate. As each piston cycles in and out of its bore, fluid is drawn from the inlet and displaced to the outlet thereby imparting power into the system circuit. A small amount of fluid is allowed to "leak" from the cylinder block / valve plate and slipper / swashplate interfaces for lubrication and cooling. Case drain ports are provided to return this fluid to the reservoir. The volume of fluid displaced into the system circuit is controlled by the angle of the swashplate. The swashplate is forced into an inclined position (into stroke) by the bias piston and spring. The servo piston opposes the action of the bias piston and spring forcing the swashplate out of stroke when hydraulic pressure in the control circuit rises above the spring force. The pump control, by varying the pressure at the servo piston, controls the displacement of fluid in the system circuit.

Elephant Fluid Power provides replacements for the above series. All spare parts of Sauer-Danfoss 45 series pump parts are produced in accordance with genuine parts, drawings. In addition, our product development team efficiently and quickly initiates customer demand confirmation, design and development, production line layout, supply chain management, quality risk management and control and other key links, We also use 3D printing technology innovatively to deliver the prototype to the fastest client!

We have got lots of positive responses from customers all over the world, if you have related needs, welcome to contact us and learn about our products!

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