Hydraulic cylinders

Hydraulic cylinders, general description of hydraulic cylinders

Manufacturing company KRPMS carries out:

• development and design of hydraulic cylinders;
• production of hydraulic cylinders of any type;
• repair of hydraulic cylinders of any type.

The company operates throughout Russia and the CIS countries.

A hydraulic cylinder is a fairly simple device composed of several parts. However, there are many design and process engineering solutions allowing you to make a reliable product. You should also keep in mind the working conditions of the hydraulic cylinder.

Our company cooperates closely with enterprises of various industries, and our customers often need to manufacture hydraulic cylinders that are structurally simple, but at the same time operate under specific conditions. These may include hydraulic cylinders operating at extreme temperatures: both positive, e.g. in foundry, and negative, that is, for climatic conditions with low ambient temperatures. You should also take into account other operation features of the hydraulic cylinders manufactured. These may be hydraulic cylinders manufactured in accordance with the requirements of the Maritime Register, that is, for operation on sea vessels under conditions of constant contact with salty sea water. In this case, it is necessary to choose materials particularly responsibly for the production of cylinder parts. Again and again, our company faced a challenge of manufacturing hydraulic cylinders for food industry, which also implies certain restrictions on the materials used. You should also keep in mind such a trivial issue as the type of the working fluid. Of course, most hydraulic cylinders operate on hydraulic oil, but our customers regularly order hydraulic cylinders with other types of the working fluid. Such solutions are in special demand in foundry and in food industry.

We should also mention hydraulic cylinders with a non-standard design. At the moment, our customers with ever increasing frequency need to manufacture specialized hydraulic cylinders with a non-standard design. The progress is ever-going, and the equipment keeps becoming more and more sophisticated, so it is not always possible to use hydraulic cylinders with standard technical solutions. These can be heavy-duty hydraulic cylinders, made to increase the assurance factor under dynamic loads, hydraulic cylinders with strict requirements to overall dimensions, high-speed hydraulic cylinders, etc.

We should make a special note on telescopic hydraulic cylinders. As a rule, telescopic hydraulic cylinders may be of two types: single- and double-acting. Single-acting hydraulic cylinders have only one working cavity, and the rods are pulled in under the action of an external load. Double-acting telescopic hydraulic cylinders have two cavities and allow the rods to be drawn in when pressure is applied to the rod cavity. There are also intermediate types of telescopic hydraulic cylinders, e.g. when one of the elbows is pushed in by the pressure of the working fluid, and the others are lowered under the action of an external force.

In any case, our company’s technical experts will help you solve any issue related to the features of hydraulic cylinders’ operation.

Normally, the process of ordering and manufacturing a hydraulic cylinder is as follows.

• An application for a hydraulic cylinder comes from a customer. The application can be in any form. It may be a sketch, an assembly drawing, or even a sample of a hydraulic cylinder. At this stage, the cost of the hydraulic cylinder is calculated. In this context, OOO PTK KRPMS shows maximum flexibility, since it is clear that many enterprises have no technical services or design offices.
• A general view drawing is developed and coordinated with the customer, with overall and connecting dimensions. At this stage, minor technical issues are coordinated that do not affect the final cost of the hydraulic cylinder.
• A full set of documentation for manufacturing the hydraulic cylinder is developed. All drawings are transferred to production.
• Parts and assemblies of the hydraulic cylinder are manufactured.
• The hydraulic cylinder is assembled. To do this, specialized equipment and test beds are used.
• The hydraulic cylinder is tested. In the process, the working capacity of the hydraulic cylinder is checked, it is subjected to tests on durability, tightness, etc. All test results are documented.
• The hydraulic cylinder is painted and packed, if necessary, and then shipped to the customer.

It should be noted that our company employs cross-checking at all stages of production, which makes it possible to maintain a high level of quality of the hydraulic cylinders produced.

Warranty period from 1 to 3 years is provided for all hydraulic cylinders, during which hydraulic cylinders can be repaired. The duration of the warranty period depends on the design and working conditions of a particular hydraulic cylinder.

A distinctive feature of OOO PTK KRPMS is the ability to manufacture not only complex and exclusive hydraulic cylinders, but also large-sized hydraulic cylinders.

Today, our company has experience in manufacturing hydraulic cylinders with the following parameters:

• Hydraulic cylinder rod stroke - 15,000 mm.
• Piston diameter – 800 mm.
• Rod diameter – 360 mm.
• Hydraulic cylinder weight – 9,800 kg.
• Max. pressure – 100 MPa.

Our main advantages:

• Many years of experience in development, manufacture and repair of various types of hydraulic cylinders. Over the years of its existence, KRPMS company has accumulated a vast knowledge base.
• A large design engineering department, which makes it possible to design even complex hydraulic cylinders in a short time.
• Modern and high-performance equipment able to produce parts and components for both standard and unique hydraulic cylinders.
• Own warehouse with a large stock of standard precision tubes, chrome-plated bars and support-sealing elements for manufacturing hydraulic cylinders.
• OOO PTK KRPMS is an integrated engineering and manufacturing complex with a full production cycle and convenient logistics.