Hydrocylinders And Types Of Hydraulic Cylinders

For today, it is possible to assert safely that hydraulic cylinders are used, in almost any industrial field of activity. They are used on machinery of any kind: tractors, combines, excavators, bulldozers, communal vehicles, forestry equipment, truck dump trucks - all of them have hydraulic cylinders in their design. They are also used on machines and industrial equipment.

What is a hydraulic cylinder?

Hydraulic cylinder is a hydraulic motor of back-and-forth motion, where the function of the movable unit is performed by the rod, plunger or body of the hydraulic cylinder itself.

Hydraulic cylinder consists of:

• From the liner (cylinder body)
• Of the stock
• The piston (the part which is usually wound on the rod, thereby driving the rod, squeezes the working fluid from the cylinder liner)
• Fasteners of a sleeve (eyes, forks, trunnions, etc.)
• Rubber-technical products and sealing materials

Hydrocylinders come in different types. Here we list the most common and popular of them:

• Single-acting hydraulic cylinders
• Double acting cylinders
• Telescopic hydraulic cylinders

So, more.

Single-acting hydraulic cylinder - in this type of hydraulic cylinders, stem extension is carried out by creating pressure in the cylinder liner cavity, and returning to the initial position of the rod due to the spring.

Double-acting hydraulic cylinders - here everything is the same as in the previous subparagraph, but there is no spring, all the opera- tions are carried out due to the pressure of the working fluid.

Telescopic hydraulic cylinders - their name they received, because of the similarity with the telescope, in fact this type of hydraulic cylinders is a few cylinders inserted into each other. This combination allows for small sizes of the hydraulic cylinder itself, to perform a large stroke due to its rods. These hydraulic cylinders are widely used in dump trucks and trailers for lifting the body platform. They are subdivided into pendulums (a ball of fastening from one side

To date, the most common hydraulic cylinders are - double-acting reciprocating hydraulic cylinders

In order to make it easier for you to find and buy a hydraulic cylinder that will suit you in all respects , let's consider the classification of hydraulic cylinders by parameters.

1. First you need to determine the diameter of the sleeve (outer and inner in mm)
2. The diameter of the rod of the hydraulic cylinder, if it is a telescopic cylinder, it is necessary to determine the diameter of all its rods (links, plungers)
3. Dimater of eyelets or forks for a piston hydraulic cylinder, diameter of balls, journals and yoke for a telescopic hydraulic cylinder.
4. The distance along the centers of the eyes (axes) of the hydraulic cylinder in the folded state in mm
5. The distance along the centers of the eyes (axes) of the hydraulic cylinder in the deployed (extended rod or rods in mm)
6. Due to the deduction of two lengths, it is possible to determine the stroke of the rod of the hydraulic cylinder.

Knowing these parameters will greatly facilitate the task of finding the required hydraulic cylinder. Also, if you do not find such a hydraulic cylinder, and you will need to make it. Then without these data you can not do.

Now we will give an example of serial hydraulic cylinders:

• Hydraulic cylinders for excavators: hydraulic cylinders of a handle, bucket, boom, supports, turn of an arrow
• Hydraulic cylinders of tractors: lifting cylinders and wheel cylinders
• Hydraulic cylinders of bulldozers: cylinders of blade and linkage
• Hydraulic cylinders for motor graders
• Hydraulic cylinders forklifts
• Telescopic hydraulic cylinders for lifting the body of dump trucks KAMAZ, MAZ, ZIL, GAZ, SAZ and their trailers.

That's actually all you need to know about hydraulic cylinders.