TFA7VO-11 Series

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Product Details

Application scenarios:

Suitable for a variety of operating conditions in hydraulic systems, it can implement multiple control modes such as load sensing, power control, pressure cut-off, and electro-proportional displacement. It is applied to industrial machinery including forging presses, shearing machines, and baling machines.

Product advantages:

For open-loop systems.
More suitable for fixed hydraulic applications.
The pump’s flow rate is directly proportional to the drive speed and displacement.
By adjusting the angle of the swashplate, stepless flow regulation can be achieved.
The pump can operate in self-priming mode.
Various variable control devices exhibit extremely high adaptability and can achieve fixed liquid.
Provide the various control and adjustment functions required for the application.
It can be driven via a through-shaft and is suitable for use with gear pumps and axial piston pumps.
Structural steel is compact.
High efficiency
High power density
Low noise

Performance metrics:

Maximum displacement: 160 / 250 cc/rev
Rated speed: 1500–1800 r/min
Rated pressure: 315 bar

The plunger pump is the power component of hydraulic transmission and control systems. It receives mechanical energy from an engine (or motor), which drives the plunger to reciprocate within the pump cylinder, thereby changing the volume of the sealed working chamber and enabling oil suction and pressurization. Ultimately, this mechanical energy is converted into pressure energy in the hydraulic fluid, providing hydraulic power for the entire system. As a type of hydraulic pump, the plunger pump has several advantages over other types of hydraulic pumps—such as vane pumps and gear pumps—including higher rated pressure, compact structure, high precision, excellent sealing performance, high efficiency, and convenient flow regulation. These features make it particularly suitable for applications requiring stable, high-pressure hydraulic systems and it is widely used in advanced equipment manufacturing and related fields.

The plunger pump consists primarily of components such as the drive shaft, swashplate, plungers, cylinder block, pistons, and a variable valve. When the engine (or motor) drives the drive shaft to rotate, the cylinder block rotates together with multiple plungers housed inside it. Each plunger head remains in contact with the swashplate. Since the swashplate is inclined at a certain angle relative to the cylinder block, as the cylinder block rotates, the plungers perform reciprocating motion within the cylinder block. The volume of the plunger cylinders alternately increases and decreases, causing the liquid to be drawn in and discharged under the influence of pressure. The rapid and stable rotation of multiple plungers ensures a steady hydraulic pressure for the hydraulic system. The pistons generate a pumping effect, delivering fluid outward, while the variable valve regulates and stabilizes both the flow rate and pressure output.

The company’s product—the TFA15VSO175 series constant-pressure, constant-power electro-proportional high-pressure piston pump—has been awarded the Second Prize of the “China Machinery Industry Science and Technology Award” by the China National Machinery Industry Federation.

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