Constant Pumps Swashplate
The constant pump with swash plate is one of the most efficient and powerful axial piston pumps for hydraulic systems with constant delivery volume. Its operating principle is based on a fixed swash plate that precisely determines the piston stroke and thus the volume flow. This design impresses with its outstanding efficiency, high pressure resistance and compact, robust construction. Constant pumps with swash plates are used in industrial plants, mobile machines, stationary units, and energy and manufacturing systems. In the LöSi® web shop, you will find various sizes, connection variants and performance levels for reliable and continuous-duty hydraulic applications.
What is a Fixed Displacement Swashplate Pump (Type PAP)?
The fixed displacement pump in swashplate design, specifically our Type PAP, is a high-performance hydraulic pump for the open circuit. Unlike variable displacement pumps, the angle of the swashplate is fixed here, whereby the pump delivers a constant displacement per revolution.
The design principle of the PAP series is tuned for smooth running and efficiency. The pistons support themselves on the inclined plate and thus generate the pressure. This design enables an extremely compact unit with high power density – ideal for applications where installation space is limited but high pressures are required.
Advantages of Our Fixed Displacement Pumps (Low Noise)
Why should you choose the Type PAP? Because it solves problems caused by standard pumps. Especially in terms of noise emission and pressure quality, this series sets standards.
Technical highlights of the PAP series:
- Low Pulsation: The optimized valve plate minimizes pressure fluctuations in the system. This protects hoses, valves, and reduces vibrations.
- Low Noise: Designed for quiet operation ("Silent Hydraulics") – a decisive advantage in indoor areas or vehicle applications.
- High Power Density: Maximum hydraulic force with minimal dead weight.
- Long Service Life: Robust bearings and high-quality materials ensure stability even in mining or the construction industry.
Typical Areas of Application
The PAP pump is an all-rounder for demanding tasks. It is found wherever reliable high pressure is needed:
- Mobile Machinery: Working hydraulics in agricultural and construction machinery (excavators, wheel loaders).
- Food Industry: Use in machines where cleanliness and low vibrations are required.
- Special Vehicles: Municipal vehicles and fire fighting technology.
- Mining: Robust drives underground, where reliability is vital for survival.
Selection Criteria & Technical Data
For the pump to run, it must fit exactly into your system architecture.
Check these parameters for the PAP series:
- Displacement: Select the matching size (cm³/rev) to reach the desired flow rate at your motor speed.
- Pressure Range: Is the pump designed for your pressure peaks (high pressure)?
- Connection Options: Do you need suction and pressure ports at the rear or side? SAE flange or thread?
- Direction of Rotation: Pay attention to the direction of rotation of the drive shaft (Right/Left).
Tip: Thanks to the low pulsation, the PAP pump is excellently suited for precision applications where "jerking" in the cylinder must be avoided.
Select & Order Fixed Displacement Pump Now
Upgrade to "Quiet & Strong". Discover the axial piston pump Type PAP and other fixed displacement pumps in our webshop.
Benefit from our expert advice on noise reduction in hydraulic systems. Select your model now and order high-performance technology directly online!