Hydraulic pumps

Our hydraulic pumps and how they work 

In this explanation, we will dive deeper into how hydraulic pumps work, with a particular focus on their different drive systems. We will explore three main types of hydraulic pumps:  

• Air driven hydraulic pump: 

• • An air-driven hydraulic pump is powered by compressed air. It uses a pneumatic motor to generate power and pressure in the hydraulic system. 
  • When compressed air is fed into the pump, it drives an air motor connected to the pump's working piston. This movement creates a pressure difference that draws in hydraulic fluid from a reservoir. 
  • As the piston moves back, the hydraulic fluid is forced out into the hydraulic system at high pressure. This allows work tools or hydraulic cylinders to perform work. 

• Battery operated hydraulic pump: 

• • A battery powered hydraulic pump is used in situations where there is no mains electricity available and where an air source is not practical. 
  • This type of pump is powered by a rechargeable battery or an external battery. The battery drives an electric motor that drives the hydraulic pump. 
  • When the motor is running, it creates movement in the pump's working piston and forces hydraulic fluid through the system. Battery powered hydraulic pumps are often portable and used in field work, emergency services and other mobile applications. 

• Electric hydraulic pump: 

• • Electric hydraulic pumps are the most common and are often used in industries with a stable power grid. 

• • These pumps are connected to an electric motor that drives the pump's working piston. When the engine is running, it creates pressure in the hydraulic system by pushing hydraulic fluid. 
  • Electric hydraulic pumps offer constant power and are efficient for continuous tasks that require precision and reliability. 

Regardless of the drive system used, the main function of the hydraulic pump is to convert energy from either air, battery or electricity into hydraulic energy. It generates the necessary pressure to drive hydraulic cylinders, motors and other hydraulic system components, enabling a wide variety of mechanical tasks 

Areas of use: Hydraulic pumps are essential in a variety of industries and applications, and their efficiency and functionality can vary depending on their drive system.  

Air driven hydraulic pumps are particularly beneficial in industries that require safety in explosive or hazardous environments. A classic example is the oil and gas industry, where air-driven pumps are used to control valves and pump hydraulic oil. In the railway sector, they are indispensable for lifting and positioning heavy rail cars and locomotives. Their portable nature makes them ideal for field work and in situations where a constant air supply is available. 

On the other hand, battery-operated hydraulic pumps are extremely useful in the emergency services. In car accidents, these pumps are used to quickly lift or cut apart vehicle bodies and rescue people. Their portability and ease of use make them ideal in emergency situations. In the agricultural sector, battery operated hydraulic pumps are used to lift and maintain heavy farm equipment in the field. Also in the offshore industry, especially on offshore platforms, they are valuable for carrying out maintenance work and repairs where there is not always an available power source. 

Electric hydraulic pumps are the most common and are used in a wide range of industries. In the manufacturing sector, they are indispensable for controlling machines and moving parts in the production process. In the construction industry, they operate cranes, elevators and other heavy machinery that require reliable and continuous power. In the aerospace industry, they are used to control aircraft landing gear and perform maintenance and repairs. 

By choosing the right type and drive system for hydraulic pumps based on the specific needs of each industry or application, efficiency and reliability can be achieved in hydraulic systems. It is clear that these pumps play a central role in enabling a variety of mechanical tasks in various industries. 

Regardless of which of these hydraulic pumps you need, we at Bengstssons Maskin can help you. Optimize your business with our reliable pumps. Make the smart choice - Buy your pumps at Bengtssons Maskin today and benefit from reliable quality and expertise!