2.5PB-5.5* 、 2.5PB-8.3* gear pumps

1. Comparison of core parameters
Parameters 2.5 PB-5.5 series 2.5 PB-8.3 series
Displacement 2.5 cubic meters/hour 2.5 cubic meters/hour
Maximum working pressure 5.5 bar (bar) 8.3 bar (bar)
Applicable scenarios Medium and low pressure hydraulic systems (such as light construction machinery) medium and high pressure hydraulic systems (such as heavy construction machinery)

2. Performance characteristics
2.5PB-5.5 series
Advantages: Compact structure, light weight, suitable for installation environments with limited space; low noise design, reduce the impact on operators.
Application: light excavators, small cranes, agricultural machinery and other scenarios with low pressure requirements.
2.5PB-8.3 series
Advantages: higher working pressure tolerance, suitable for high-load working conditions; wear-resistant materials and optimized sealing design extend service life.
Application: Heavy-duty excavators, die-casting machines, large injection molding machines and other industrial equipment that require high-pressure transportation.

3. Materials and design
Material: aluminum alloy pump body + cast iron flange/back cover, taking into account lightweight and structural strength.
Sealing technology: special shaft seals and bearing structures are used to reduce the risk of leakage and reduce maintenance frequency.
Connection method: Support flange connection, quick connector connection and other methods to adapt to different system requirements.

4. Examples of application scenarios
2.5PB-5.5 series：
Hydraulic system of light excavator: it provides power for actuators such as boom and bucket.
Agricultural machinery lubrication system: deliver lubricating oil to various friction parts to reduce wear and tear.
2.5PB-8.3 series：
Heavy-duty die-casting machine: quickly transport molten metal under high pressure to ensure molding quality.
Large-scale injection molding machine: it provides stable high-pressure transportation of plastic melts and improves production efficiency.

SALAMI gear pumps are available with displacements from 1.4 cm3/rev to 99 cm3/rev (from 0.09 cu.in/rev to 6.03 cu.in/rev).
Multiple pumps can always be relized combining stages taken from different or same series.
Several options of shafts, flanges and ports as for European, German and American standards are available for all the pumps.
SALAMI gear pumps offer:
•High volumetric efficiency thanks to an innovative design and an accurate control of machining tolerances.
•Axial compensation achieved by the use of floating bushes that allow high volumetric efficiency throughout the working pressure range.
•DU bearings to ensure high pressure capability.
•12 teeth integral gear and shaft.
•Aluminium body.
•Cast iron flange and cover.
•Double shaft seals.
•Nitrile seals as standard and Viton seals in high temperature applications.
•All pumps are hydraulically tested after assembly to ensure the highest standard performance.
•Gear pumps are ideal for mobile equipment including: snow plows, light duty equipment, farm vehicles, town trucks, cherry pickers, lift gates, utility vehicles, aerial devices, hoists, spreaders, fan drive.
•Also available Bidirectional rotation.