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What is a manual hydraulic pump?

If you work in agriculture, construction, mechanical engineering or any other industry requiring a fluid supply or hydraulic pressure, you've probably heard of manual hydraulic pumps. But did you know exactly what a hydraulic hand pump is? In this article, after a brief introduction to the hydraulic hand pump, we'll explore the world of this essential piece of mechanical equipment and point out the factors to consider when choosing a hydraulic hand pump for a specific application.

What is a hydraulic hand pump?

A hydraulic hand pump is a mechanical device used to generate hydraulic pressure through the force of the user.

Often made of steel for durability and resistance to pressure, the hydraulic hand pump uses oil to create a pressure effect that can be used to move water or other liquids. The flow rate and speed of the pump depend on the stroke of the piston and the pressure exerted on the lever.

Pompe hydraulique manuelle

Fitted with a reservoir to store the oil and capable of reaching a maximum pressure of several hundred bar, manual hydraulic pumps are widely used in situations requiring a supply of fluid or hydraulic pressure.

What are the characteristics of a manual hydraulic pump?

Manual hydraulic pumps are easily distinguished from electric hydraulic pumps, air hydraulic pumps or even gas-powered pumps.

As their name suggests, manual hydraulic pumps are operated manually by means of a lever, handle or other control device. This makes them particularly useful in situations where electrical or pneumatic power is not available.

Most manual hydraulic pumps use a steel piston and cylinder to create hydraulic pressure. However, poor quality steel can lead to leaks and reduced hydraulic efficiency.

The pressure generated by a hydraulic hand pump can reach up to 700 bar or more. This makes it a powerful tool for lifting heavy loads or operating hydraulic cylinders.

Hydraulic hand pumps are designed to operate with hydraulic oil. The oil is stored in a reservoir built into the pump and is distributed throughout the hydraulic circuit during operation.

The pump's output depends on the stroke of the piston and the speed at which it is operated.

Finally, the manual hydraulic pump is available in several varieties, depending on the need for hydraulic force or pressure.

What are the different types of manual hydraulic pump?

In the various shops selling hydraulic components, you'll find a wide variety of hydraulic hand pumps. Each of them has specific characteristics that make it suitable for different uses.

Pompe hydraulique manuelle - PS-PSS series - FPT Fluid Power Technology - à eau / haute pression

The main types of hydraulic hand pumps include :

- The single-piston pump

The single-piston pump is the most common type of hydraulic hand pump. It consists of a piston and a steel cylinder that create hydraulic pressure when they move relative to each other. This movement is activated by a hand lever or handle.

Single-piston pumps have a pressure capacity of up to 700 bar and are commonly used for applications such as heavy lifting, oil presses and hydraulic power generation.

  • Double piston pump

The double piston pump uses two steel pistons to increase the flow of hydraulic fluid. The two pistons are in phase opposition, meaning that when one is moving upwards, the other is moving downwards. This doubles the fluid flow compared with a single-piston pump.

Double piston pumps are commonly used for applications requiring a high flow rate of hydraulic fluid.

- The multi-stage pump

Multi-stage pumps use several steel pistons and cylinders to increase the pressure of the hydraulic fluid. Each stage of the pump has a piston and cylinder, which progressively increase the hydraulic pressure as the fluid is pumped through successive stages.

Multi-stage pumps are commonly used for applications requiring high hydraulic pressure, such as metal cutting or sheet metal bending.

- The lever action hand pump

The lever-operated hand pump works in the same way as the two-stage hand pump. However, it uses a lever to activate the movement of the piston and steel cylinder. This increases the pump's flow rate and pressure.

The lever action hand pump is often used for applications requiring extra pumping power, such as lifting heavy loads or pressurising hydraulic systems. It is also often used in situations where access to an external power source is limited or impossible.

Depending on the type of action of the pump, you can get a single-acting or double-acting hydraulic hand pump.

What are the advantages of manual hydraulic pumps?

Whether in the automotive, construction, mechanical or agricultural sectors, using a manual hydraulic pump is highly advantageous.

First of all, manual hydraulic pumps are highly energy-efficient, as they do not require electricity or fuel to operate. Instead, they use the physical strength of the operator to pump the hydraulic oil. They are not as prone to mechanical failure as electric or petrol pumps.

Generally lightweight and compact, making them easy to transport and store, hydraulic hand pumps require no specialist skills or advanced technical knowledge.

Often used in harsh environments and extreme conditions, these types of hydraulic pumps are designed to withstand high levels of pressure and shock. What's more, their simple design can make them cheaper to maintain and repair than electric or fuel-driven pumps.

Pompes hydrauliques manuelles: Série Lever-MAX | ITH Serrage Dynamométrique | ITH

With a manual hydraulic pump, a simple change in the force applied to the lever is all that is required to precisely control the pump's flow rate or pressure.

Equipped with an overload system to prevent failure in the event of overload or excessive pressure, these pumps can be used to operate hydraulic cylinders, hydraulic presses, cutting tools and lifting equipment.

How do I choose a good hydraulic hand pump?

Choosing the right hydraulic hand pump for your needs is crucial to ensuring the smooth operation of your hydraulic equipment. To achieve this, it is important to consider a number of essential factors, such as

- The quality of the hydraulic hand pump

The quality of the pump's design is important to ensure long-term durability and reliability.

You need to ensure that the pump is made from quality materials, such as steel, to withstand tough working conditions.

- The cost of the hydraulic hand pump

The cost of the pump can vary considerably depending on the brand, type and quality of construction.

Make sure you choose a hand pump retailer such as AU COMPTOIR HYDRAULIQUE, which offers the best value for money on all its products.

- The characteristics of the hydraulic hand pump

Flow rate and pressure are two essential parameters that determine the pump's power and capacity. So make sure you select a pump that is capable of delivering the flow rate and pressure required for your application.

In addition, some fluids have specific properties that can affect the pump's performance. It is therefore necessary to choose a hydraulic fluid that is suitable for the specific needs of the application and that is compatible with the pump materials.

Still on the same theme

- How a manual hydraulic pump works

- Advantages and disadvantages of a manual hydraulic pump

- Common applications for a manual hydraulic pump

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