Automatic Double-Cylinder Wheelset Press

Automatic railway press Muscle KPRZ-M.04 DUO for two-axes pressing and unpressing of wheel sets.
This type of press is intended primarily for enterprises working with a wide range of wheel sets. These are wheel pairs of trams, locomotives, freight cars, and subway cars. It is suitable for both factories producing new wheel sets and for repair production.
This type of press has gained recognition in developing countries in Africa, Asia, and South America.
Wide functionality of settings, reduced requirements for operator qualifications, the ability to unpress almost any wheel pair - this is not a complete list of the advantages of the double-side press Muscle KPRZ-M.04 DUO.
Double-axes presses Muscle are functional analogues of European and American presses from leading global manufacturers. Such as BBM, Simons, Mae.
Due to their simplicity and thoughtfulness, they compare favorably with analogues. They are easy to maintain. The components are interchangeable. We provide customers with open access to the software. We support updates during the service life of the press.
The presses are equipped with automatic carriages that feed the wheel pair into the press.
This can be either one carriage or several. In a flow line, to speed up the cycle, one carriage feeds the axle into the press, and the second one extracts the finished axle from it.
This allows us to reduce the auxiliary time of the pressing operation and separate the flows of wheel pair elements in the depot.
A special feature of the press is the movable central stop crossbar. It moves not only horizontally, but can also move out of the pressing zone and move to the side, freeing up space.
The crossbar itself has two stop brackets. One can work for pressing, the second for unpressing.
This solution allows us to work on the same type of wheel pairs without retooling the tooling and its lengthy adjustment for a new task.
The most advanced solutions are used in the press to improve the quality of pressing and the repeatability of the cycle. This includes axle centering. And a separate hydraulic system for each power cylinder. And a contactless laser system for measuring the linear accuracy of pressing. And wheel runout control directly in the press.
After the carriage has loaded the wheel axle into the press, the retractable centers of the hydraulic cylinders fix the axle on the center line of the press.
The spring-loaded centers fold inward when the press begins to press on the wheel. Thus, the auxiliary force does not interfere with the pressing diagram "Force-Path". The centers have replaceable cones at 90 and 60 degrees for different types of axles.
Wheel pairs of modern high-speed trains are subject to increased requirements for linear and radial accuracy. The press uses a separate hydraulic system for each power cylinder. Hydraulic unit servo drives increase the accuracy of pressing speeds and reduce the intervals of stopping the cylinders and the crosshead.
A simple and reliable hydraulic circuit is implemented on the component base of the leading German valve manufacturer Rexroth.
One of the most important qualities of an automatic press is simple, clear control.
Repeatability and the ability to save the program of the autocycle of pressing each wheel pair - this may be the very factor by which the customer is inclined to choose a two-cylinder automatic press.
And although there are general requirements for pressing and unpressing, each country has its own legislation regulating these technological processes.
This includes different pressing speeds. And different technological bases of the axle. For example, pressing.
Somewhere they press into the end of the axle. In the countries of the former Soviet Union, pressing is allowed only into the pre-hub part of the axle. Therefore, the equipment is also different.
In Europe, wheels with an oil channel are mainly used. And the preliminary wheel breakage is carried out not on the press, but with the help of a high-pressure injector.
Measurements.
In this part, we use the best world practices. Bosch and Hiwin equipment are well interchangeable, have high wear resistance of linear systems, hold the declared loads and cope well with the harsh conditions of railway depots.
Press controller. We most often choose Japanese Omron. For the best price-quality ratio. It is well supported all over the world. When the customer asks for Siemens, we work with Siemens.
The main assessment of any equipment model is its successful testing.
Before sending the press to the depot, we test it for all important parameters.
Repeatedly tested technical process in the presence of customer inspectors simplifies the installation of the press in the depot.
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