• We’re Here for You
    We’re Here for You
    Jun 8

    We’re Here for You

    At John Henry Foster, St. Louis, we are ready to help our valued customers and neighbors get back to work. Things may look a...
  • Press Machinery
    Press Machinery
    Jun 8

    Press Machinery

    From design to manufacturing...and everywhere in between, John Henry Foster offers total support for any project or challenge. Recently, a local manufacturing customer contacted...

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        Air Compressors

        Our associates are empowered to perform at the highest level of quality so that we meet and exceed expectations.

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        Value Added

        Our associates are empowered to perform at the highest level of quality so that we meet and exceed expectations.

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        Hydraulic

        Our associates are empowered to perform at the highest level of quality so that we meet and exceed expectations.

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        Tool & Hoist Repair

        Our associates are empowered to perform at the highest level of quality so that we meet and exceed expectations.

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        Units Converter

        Our associates are empowered to perform at the highest level of quality so that we meet and exceed expectations.

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        Get in Touch   Contact Us
        Calculate Driven Sprocket Speed

        Enter Drive Speed, Drive Sprocket Diameter and Driven Sprocket Diameter to calculate Driven Speed

        Get Started
        Calculate Gear Pump Estimated Displacement

        Enter Gear Outside Diameter, Gear Width and Gear Center Distance to calculate Gallons Per Minute (GPM) @ 1200 RPM.

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        Calculate Angled Hydraulic Cylinder PUSH-PULL

        Enter the Cylinder Bore diameter, PSI, Rod Diameter and Angle to calculate PUSH/PULL for a hydraulic cylinder mounted at an angle

        Get Started
        Calculate Driven Sprocket Diameter

        Enter Drive Speed, Drive Sprocket Diameter and Driven Speed to calculate Driven Sprocket Diameter

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        Calculate Hydraulic Cylinder PUSH/PULL

        Enter the Cylinder Bore diameter, PSI and Rod Diameter to calculate PUSH/PULL for a hydraulic cylinder

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        Calculate V-Belt Length

        Enter Pulley Center Distance, Large Pulley Diameter and Other Pulley Diameter to calculate V-Belt Length

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        Calculate Sprocket Drive Speed

        Enter Drive Sprocket Diameter, Driven Speed and Driven Sprocket Diameter to calculate Drive Speed

        Get Started
        Calculate Vehicle Speed

        Enter the Wheel Outside Diameter (not the rim size) and Axle RPM to calculate Vehicle Speed

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        Calculate Reservoir Capacity – Cylindrical

        Enter the Reservoir Diameter and Length or Height to calculate Cylindrical Tank Capacity in cubic inches/gallons

        Get Started
        Calculate Hydraulic Motor Horsepower

        Enter the GPM and PSI (pressure) to calculate Horsepower

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        Calculate Reservoir Capacity – Rectangle

        Enter the Reservoir Length, Width and Height to calculate Rectangular Tank Capacity in cubic inches/gallons

        Get Started
        Calculate Hydraulic Cylinder Speed

        Enter the Pump GPM, Cylinder Bore diameter, Stroke and Rod Diameter to calculate Cylinder Speed (Do not use fractions)

        Get Started
        Calculate Input/Exhaust Volumes For Rephasing Cylinders

        Calculate Input/Exhaust Volumes to match the exhaust volume from one cylinder to the input volume of the next cylinder in a series

        Get Started
        Get in Touch   Contact Us
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