Types of Hydraulic Pumps by Application
A major consideration is how you want the pump to feed. What drives this decision is where you will perform the work. For example, if you are working in a hazardous environment, a "spark-free" air-driven hydraulic pump will provide a safer solution.
If you work in a remote location without access to compressed air or electrical power, a battery-powered pump is a way to go. Manually operated pumps, such as foot pumps and hand pumps, offer a simple solution to small jobs. Especially those where the process does not need to be repeated many times or where a very slow level of power is required in the test environment.
Most hydraulic pump manufacturers classify their pumps based on the intended match of the tool and hydraulic application. It should be noted that there are basic differences that make them suitable for every hydraulic application.
1. General Hydraulic Pumps for Cylinders, Flange Spreaders, and Other Tools
The main consideration is whether you need a pump designed for a single or dual-action application. The pump will need at least two ports, if the cylinder is double acting One is for the advance line, for extending the cylinder, and the other for the return line, for retracting it.
2. Hydraulic Torque Wrench Pumps
Hydraulic torque wrench pumps include a user-adjustable relief valve that allows the operator to easily set the correct torque pressure. They usually also include an onboard pressure gauge that can be analog or digital.
3. Tensioner Pumps
Hydraulic tensioner pumps are available in manual, air, and electric configurations. What makes the tension pump different is its ability to operate at very high pressures of up to 21,750 psi (1,500 bar).
4. Work holding Pumps
The machinery used in manufacturing plants often includes an integrated hydraulic system to operate the clamping devices. However, in the absence of such a system (or if an increase in hydraulic pressure is required), a separate pump can be added.
5. Controlled Pumps for Multi-Point Lifting
For multi-point lifts, a controlled lifting pump provides a better solution than independently operated pumps. The high-precision movement of large objects requires the synchronization of multiple lifting points. This can be achieved with a controlled lifting pump. Manual intervention is reduced, the structural integrity of the bearing is maintained, productivity and safety are ensured.