Manual Hydraulic Pump

Manual hydraulic pumps are among the most commonly used and essential components in hydraulic systems, acting as the primary source of pressure generation in a hydraulic circuit. Their main function is to convert mechanical energy into hydraulic energy. In other words, the force applied manually by the user to the pump handle creates pressure in the hydraulic oil, which is then transferred to the connected tool through hoses.

These pumps are directly connected to hydraulic tools via fittings and provide the required force to operate or activate them. Therefore, almost all high-pressure hydraulic tools such as hydraulic jacks, hydraulic punches, cutters, presses, and even pressure testing devices can be operated with this type of pump.

General Structure of a Manual Hydraulic Pump

Manual hydraulic pumps are generally composed of the following components

1. Oil Reservoir:
   A container for storing hydraulic oil that is supplied to the system during pumping.
2. Piston and Cylinder:
   The main section responsible for pressure generation. Moving the handle causes the piston to move and compress the oil.
3. Manual Lever / Handle:
   Operated manually by the user to provide mechanical input energy.
4. Check Valve:
   Prevents oil from flowing backward and helps maintain system pressure.
5. hoses and connections:
   hydraulic hose for transferring high-pressure oil to the connected tool or system..
6. Pressure gauge (in some models):
   pressure gauge It is used to display the amount of pressure produced.

Features and advantages of a manual hydraulic pump

• easy portability: Since it does not require electricity or a motor, it can be used in locations without power sources.
• High power and pressure: Despite its simple design, it is capable of generating very high pressures (even above 700 bar).
• Precise control: Being manual, the operator has full control over the pressure and oil flow rate.
• Long lifespan: With proper maintenance and lubrication, it can operate for years without issues.
• Increased safety: Due to the simplicity of the mechanism, the risk of failure and hazards is reduced.

Applications of manual hydraulic pumps

These pumps are used in various industries, including:

• Automotive repair and maintenance: For operating hydraulic jacks and small press machines.
• Construction industry: In hydraulic lifts and heavy-duty jacks.
• Power plants and oil & gas industries: For pressure testing and pipeline control.
• Industrial workshops: For operating punches, cutters, and press machines.
• Transportation industry: For repairing and assembling heavy parts.

Important points in selection and use

1. Pressure capacity: Select the pump according to the pressure required by the tool.
2. Tank capacity: It should be appropriate for the hydraulic system's requirements.
3. Body and component material: For operation in harsh conditions, a steel or durable alloy body is preferred.
4. Regular maintenance: Includes oil replacement, checking for leaks, and inspecting the condition of valves and hoses.