Frquently Asked Questions on Hydraulic Cylinders

Hydraulics is the backbone of many industries today. A wide range of industrial equipment depends on hydraulics as does the car you drive. Unfortunately many people involved in hydraulics know very little about the subject of cylinders. Let’s discuss some of the most common questions like how to order from a hydraulic cylinder manufacturer, how cylinders work, and some of the types available today.

What Are Hydraulic Cylinders?

A hydraulic cylinder is used in a fluid or hydraulic system to deliver fluid to hydraulic components and this results in a transfer of power. It is also called a linear hydraulic motor because power comes from fluid which has been pressurized.

A hydraulic cylinder can be used for lifting things, extending applications, and powering a number of commercial applications.

Why Are Some Cylinders Single Action and Others Double Action?

Single action cylinders are able to provide hydraulic force or pressure in one direction only. This is important for pushing applications like snow plows, which require forward pressure.

Double action hydraulic cylinders can provide force in either direction. The hydraulic cylinder manufacturer creates fluid ports on both ends of the cylinder and piston. This provides the “push pull” action needed for many applications like backhoes and lift trucks.

What is a Tie Rod Hydraulic Cylinder?

Some people get confused when they hear the term tie rod cylinder and they automatically think it is made for a steering system. However, this is not the case. There are hydraulic steering cylinders but the term “tie rod” refers to the construction of the cylinder.

On a tie rod cylinder, the end caps are held on by tie rods and bolts. This is different than welded cylinders which have the end caps welded on. Tie rod cylinders can be easily taken apart for rebuilding and are usually cheaper in cost than their welded counterparts.

How Does One Measure Cylinders?

Suppose you want to order a cylinder for your business. You will need to provide the manufacturer with the right measurements to make sure you get the right part. This is especially important if you are ordering a custom made cylinder.

Measure the length of the pin while the cylinder is fully extended and then when completely retracted. The bore and rod must also be accurately measured. Measure the ports and note their type and do the same thing with the end mounts. If you are not sure about measuring, your hydraulic cylinder manufacturer is there to help you with the process.

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