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Hydraulics

AP250HP Series Pump

External Gear Pump, Aluminum, Single and Multiple, 40.0 – 75.0 Displacement cm³/rev.

The product range of  SpA includes single pumps 05-100-212-212HP-250HP-300-312HP (corresponding with the common group denominations: 05-1-2-2.5-3) and several combinations of double pumps, triple pumps, and so on, that can be assembled together according to versions of displacement, flanging, and auxiliary valves.

Gear Pumps family, AP250HP (group 2.5), specifically developed for wheel loaders, excavators and telehandlers applications. The AP250HP is the result of a focused design, studied also with the aid of a software internally developed and used for the calculations of the most important mechanical parameters of the gears and to optimize all the performances with a consequent noise and vibration reduction.

The external gear pumps are widely used in modern hydraulic systems to obtain high performances, long life service and low purchase and maintenance costs.

 

  • Specifications
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    Technical Data

    Material Cast Iron -
    Displacement cm³/rev 15.2 - 54.0 -
    Operating Pressure (up to bar) 300 -
    Peak Pressure (bar) 320 -
    Min. Speed (RPM) 500 -
    Speed Max. (RPM) 3500 -

    Options

    Bucher will examine special versions, features, and customizations Contact GS Global Resources to discuss your application needs
    Tandem and triple pumps are also available with direct con-nections between the shafts -
    Models
    - Single pumps, unidirectional
    - Single pumps, reversible
    - Aluminum and cast iron versions
    - Double and triple pumps, unidirectional , in several configurations
    - With intergral flow or presssure control valve
    - With outrigger bearing for axial and radial loads

    Features and Benefits

    Long life expectancy -
    High efficiencies -
    Noise & vibration reduction -
    Strong interface -
    Shaft load reduction -
    AP250HP flange interface -
    High pressure limits -
    Reduced number of components -
    Reduced overall dimension -
    Direct and stronger connections between shafts (Tandem/Triple pumps) -
    The AP250HP cast iron gear pumps mix the best part of AP212 and AP300 frame size improving power density due to wide range of displacements 15 to 54 cm³/rev -
    - -
    Bucher validation method: long life expectancy -
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    Support bearings mounted in the cast iron body and covers -
    High overall efficiency thanks to optimized hydraulic compensations -
    Design and materials that guarantee excellent technical specifications and long life service -
    Optimum quality / price ratio -
    Customized models can be built for speific applications -
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    Dedicated front covers to improve mechanical and life performance in case of radial/axial loads -
    Dedicated back covers with integrated circuits to control pressure and flow -

    Markets

    Mobile -
    Industrial -

    Applications

    Tractors -
    Agricultural Machines -
    Earth Moving Machines -
    Lift Trucks -
    Construction Machinery -
    Front Loaders -
    Sweepers -
    Hyrdraulic Hoists -
    Wheel Loaders -
    Excavators -
    Telehandlers -
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