What is a hydraulic cylinder for the press?

The operation of an extensive group of mechanical power equipment is based on the function of hydraulic cylinders. In a way, a drive system is produced, which at a minimum cost realizes the working cycle. Units in which such nodes are integrated are used in industry, construction, and also in private farms. The hydraulic cylinder for the press putting pressure on this or that material became very popular. This can be a recycling machine, matrix devices in the industry, and production lines that compact the blanks.

Design and operation principle

The essence of any hydraulic machine is based on the provision of pressure on the liquid piston, which is located in the cylinder. The metal rod of the hydraulic cylinder ensures cyclic operation of the unit, translating the working moment to the final recipient of energy. In the case of a press, the result of the operating torque will be the force pressure applied to the sealing platform. For example, massive pressing panels in recycling machines provide a compact tamping of waste paper, metal and other wastes.

Particular attention deserves the site of effort. As already noted, the pressure is formed by supplying liquid to the piston. As an active substance can act and ordinary water, but in powerful systems, a specialized oil is used. In this case, the hydraulic cylinder can be driven by both manual force and an electric motor that automatically pumps pressure through the liquid.

Types of aggregates

Two variants of hydraulic cylinders are common. These are two- and one-sided units, which have operational differences in principle. Two-sided mechanisms are considered more efficient and functional, in which the piston moves in both directions with fluid. This is a complex hydraulic cylinder that interacts with the connected highway to drain and refresh water or oil. Accordingly, one-way hydraulics can be considered as a simpler mechanism. In this case, the liquid creates only a force in one direction, after which the piston is returned to the place by special devices - usually springs.

Main characteristics

Technical and operational parameters applied to cylinder hydraulic assemblies can be divided into two groups - providing the power potential and structural. The main characteristic that defines a hydraulic cylinder from the point of view of efficiency is precisely the power load. The pressure varies from 2 to 50 tons. Minimum loads up to 10 tons are capable of providing single-sided units, and above - two-sided.

In terms of design values, it is important to consider the stroke of the rod and its diameter. The stroke is on average 150-400 mm, and the diameter is about 40 mm. This data is not particularly important in terms of performance, if the force initially meets the load requirements, but it is important to take them into account in order to allow subsequent integration into the working environment. For example, hydraulic cylinders with a large working stroke may not be suitable for a modest waste recycling station. Conversely, when equipping an industrial lifting machine, it makes no sense to look for a compact cylinder, since it is more likely that such a model will not be able to provide sufficient effort.

Manufacturers of hydraulic cylinders

Qualitative cylinders for different needs are produced under the brands Ombra, JTC, Trommelberg, etc. In the families of these companies, it is possible to find machines for equipping small car repair shops and industrial installations that create tens of tons of effort. Also on the domestic market models of the Sorokin enterprise are widely represented in different modifications. At the same time, a Russian hydraulic cylinder will cost less, but it will provide the same operational effect. Another thing is that the company, rather, focuses on the lower and middle segments - mainly hydraulic cylinders with a load of about 10 tons. However, the limitations on the strength of the action are compensated by the structural flexibility. Such mechanisms can be used both as an independent functional apparatus, and as a tooling in the composition of larger productive machines.

Additional equipment

Additional equipment for hydraulic cylinders is a device for optimizing control, lighting equipment, as well as security systems. The choice of this or that device is determined by the operating conditions of the mechanism. Often, LED lights are purchased, thanks to which equipment can be used at any time of the day. In addition, the presence of a protected illumination may be required in case an unscheduled repair of hydraulic cylinders is planned, which often involves adjusting operations with the connection of pumps or the correction of springs. In more complex designs, electronic control panels are often used, which automatically control the supply of hydraulic fluid to the pump group of the hydraulic system.

Conclusion

The efficiency of the lifting press mechanisms is largely determined by the action of the pistons that bring the functional components into operation. Performance, in turn, directly determines the hydraulic cylinder for the press and its technical parameters. As a rule, the larger the size of the rod, the higher the efficiency of the system. Accordingly, large cylinders are available for servicing large machines that can not only drive the press platform, but also provide sufficient force through it. In addition to the load itself, the quality of the hydraulics function is determined by the algorithm of operation, which will depend on the nature of the connection and the interaction of the cylinder with the rod.