Data Sheets

This chart has been prepared for use with an existing hydraulic system which runs at too high a temperature. It may be used to estimate heat exchanger capacity which must be added to reduce the oil temperature to an acceptable level.

Womack Machine Supply Company - Design Data Sheet - Matching the Size of a Broken Pump or Motor. Good stuff?

Figures in the body of this table show the horsepower needed to drive a positive displacement hydraulic pump, and would be valid either for electric motor or engine drive.

The purpose of this data sheet is to show how to calculate the extra pressure or torque needed in a hydraulic system to accelerate an inertia load, Item (3), from standstill to its final velocity in a given time, assuming the pressure needed for Items (1) and (2), the work load and the friction resistance has already been calculated or assumed.

Womack Machine Supply Company Angle Problems in Fluid Power Applications reference page

Womack Machine Supply Company Hoisting and Cable Tensioning with Cylinders reference page

Womack Machine Supply Company Cushioning and Decelerating Methods for Cylinders reference page

Womack Machine Supply Company Design of Cams for Actuating Limit Switches reference page

The chart shows approximate pressure drops which may be expected at various flows rates through sharp edge orifices for petroleum type hydraulic oil. It may be used for designing limiting flow orifices in hydraulic systems.

Where cylinders are operating mechanisms which might present a safety hazard to the operator, dual controls may be provided. These require the use of both hands to start the cylinder and to keep it in motion. Dual controls are also used on large presses which require two operators. Each operator has a control; neither can start the press until the other is ready.

When choosing the conductor size for electrical wiring, there are TWO important factors which must be considered, and these are: (1), the safe current-carrying capacity without overheating, and (2), keeping the voltage loss to an acceptable minimum.

An approximation can be made of the cylinder force needed to punch a hole, slot, or notch, using this method: Find the cross section, in square inches, of the section to be sheared.

Circuits on this data sheet are intended for air and hydraulic presses, to automatically retract the press cylinder when a pre-set tonnage has been reached, this retraction to override the operator and take place even though the operator may still be holding down a foot valve or foot switch.

It is very difficult to calculate and predict the speed of an air cylinder; there are too many variables which influence speed and on which it is difficult to gather accurate data. We must rely mainly on good design practices and use the benefit of past experience. It is better to have the cylinder speed too fast to begin with because it can always be reduced with a speed control valve, but if it is too slow to begin with, it is more difficult to increase its speed later.

Womack Machine Supply Company design data sheet for How to Use Pressure Differential Sequencing

Womack Machine Supply Company design data sheet for How to Calculate Stretch in Cylinder Tie Rods

Womack Machine Supply Company design data sheet for How to Use Flow Coefficients (Cv) for Hydraulic Fluids

Womack Machine Supply Company design data sheet for Troubleshooting for Recurrent Solenoid Burn Out

Womack Machine Supply Company design data sheet for Clamp and Work Applications with Sequence Valves

Womack Machine Supply Company design data sheet for How to Select a Pressure Switch for Your Application

Womack Machine Supply Company design data sheet for U.S. Customary Units Compared to ISO International Standard Units

Womack Machine Supply Company design data sheet for Cv (Flow Factors) for Compressed Air

Womack Machine Supply Company design data sheet for Minimizing Shock in Hydraulic Systems

Womack Machine Supply Company design data sheet for Information on Sound Power and Sound Pressure

Womack Machine Supply Company design data sheet for the Interchange Between SI, Metric and U.S. Customary Units

Womack Machine Supply Company design data sheet for Spool-Type Proportional Flow Dividers

Womack Machine Supply Company design data sheet for Fluid Power Equivalent of Mechanical Horsepower

Womack Machine Supply Company design data sheet for Designing Slow Feed Circuits for Hydraulic Cylinders

Womack Machine Supply Company design data sheet for Life Expectancy of Piston-Type Pumps and Motors

Womack Machine Supply Company design data sheet for Finding the Cause of Solenoid Coil Burn-Out

Womack Machine Supply Company design data sheet for A Study of Rotary-Type Flow Dividers

Womack Machine Supply Company design data sheet for Pressure Rating of Steel Cylinder Tubing

Womack Machine Supply Company design data sheet for 3-Phase, Induction-Type, Electric Motors for Pump Drive

Womack Machine Supply Company design data sheet for A Load Sensing Control Increases Pump and Circuit Efficiency

Womack Machine Supply Company design data sheet for How to Make Noise Calculations with Decibels

Womack Machine Supply Company design data sheet for Bootstrapping to Save Power - Part 1, Tension Stressing

Womack Machine Supply Company design data sheet for Better Design of Systems Which Use Fire Resistant Fluids

Womack Machine Supply Company design data sheet for Designing Slow Feed Circuits - Part 2, Air Cylinders

Womack Machine Supply Company design data sheet for Pressure Compensated Hydraulic Speed Control - Part 1

Womack Machine Supply Company design data sheet for How to Control Air Motors

Womack Machine Supply Company design data sheet for Vehicle Drive with Hydraulic Motors - Part 1

Womack Machine Supply Company design data sheet for Matching a Hydraulic Motor to the Load

Womack Machine Supply Company design data sheet for Applications for Pressure Reducing Valves

Womack Machine Supply Company design data sheet for Applications for Cam-Actuated Valves

Womack Machine Supply Company design data sheet for How to Solve your Air Line Water Problem

Womack Machine Supply Company design data sheet for Tips on Selection of Shell and Tube Heat Exchangers

Womack Machine Supply Company design data sheet for Tips on Sizing Accumulators

Womack Machine Supply Company design data sheet for Troubleshooting Tips for Hydraulic Pumps

Womack Machine Supply Company design data sheet for Effects of Oversizing or Undersizing an Electric Motor for a Job

Womack Machine Supply Company design data sheet for Bootstrapping to Save Power - Part 2, Tension Stressing Continued

Womack Machine Supply Company design data sheet for Speed Regulation of Hydraulic Motors - Part 1

Womack Machine Supply Company design data sheet for Speed Regulation of Hydraulic Motors - Part 2

Womack Machine Supply Company design data sheet for Cylinder Drift Problems and Their Solution

Womack Machine Supply Company design data sheet for Simple Measurements in Hydraulic Systems

Womack Machine Supply Company design data sheet for Tips on Selection of Plumbing Size for Hydraulic Systems

Womack Machine Supply Company design data sheet for Pressure Loss Due to Fluid Flow Through Pipes

Womack Machine Supply Company design data sheet for Air Consumption of Cylinders

Womack Machine Supply Company design data sheet for Dimensions of SAE Port Pads.

Womack Machine Supply Company design data sheet for Pump-Down Time for Vacuum Tanks

Womack Machine Supply Company design data sheet for Hydraulic Filter Beta Ratings and the Multi-Pass Test

Womack Machine Supply Company design data sheet for Pressure Compensated Hydraulic Pumps

Womack Machine Supply Company design data sheet for Troubleshooting Tips for Hydraulic Systems

Womack Machine Supply Company design data sheet for Computing Power to a Hydraulic System

Womack Machine Supply Company design data sheet for Circuit Design with Vane-Type Rotary Actuators

Womack Machine Supply Company design data sheet for NEMA Frame Assignments - 3-Phase Induction Motors

Womack Machine Supply Company design data sheet for Troubleshooting Tips for Closed Loop Hydrostatic Systems

Womack Machine Supply Company design data sheet for Troubleshooting Tips for Open Loop Hydraulic Systems

Womack Machine Supply Company design data sheet for Piston-Type Pressure Intensifiers

Womack Machine Supply Company design data sheet for Rotary-Type Pressure Intensifiers

Womack Machine Supply Company design data sheet for Vehicle Drive with Hydraulic Motors

Womack Machine Supply Company design data sheet for Horsepower Required for Compressing Air

Womack Machine Supply Company design data sheet for Pressure and Flow Ratings for Hydraulic Plumbing

Womack Machine Supply Company design data sheet for Working with ISO Metric Cylinders - Part 1

Womack Machine Supply Company design data sheet for Working with SI (System International) Cylinders - Part 2: FLUID POWER - Design Data Sheet 75.

Womack Machine Supply Company design data sheet for NFPA Mounting Flanges and Shafts for Hydraulic Pumps and Motors

Womack Machine Supply Company design data sheet for Hydraulic Cylinder Speeds - Extension and Retraction

Womack Machine Supply Company design data sheet for Wire Size and Fuse Ratings for 3-Phase Induction Motors

Womack Machine Supply Company design data sheet for ISO Pipe Thread and Port Thread Sizes

Womack Machine Supply Company design data sheet for JIC Standard Symbols for Electrical Ladder Diagrams