Mechanical press

Mechanical crank presses are available with open and closed frame, while the frame serves as a support for all moving parts of the press and connects all the mechanisms into one system. The plant produces presses with a two-column frame with a transverse arrangement of the eccentric shaft, with such a press layout, with an open frame, there is free access to the tooling from three sides (front and sides), which ensures convenience for installing and servicing the stamp. A mechanical crank press with a two-column frame ensures the feed of the workpiece along the front of the press and work with the strip when using mechanization, which facilitates waste removal. The crank press can be made with an inclined frame. The frame of mechanical presses is cast, which ensures a decrease in the amount of elastic deformation under load. The design of mechanical crank presses is made in such a way that there is a device for adjusting the length of the stroke of the slider. Mechanical presses can be manufactured according to the technical specifications with an increased stroke equal to two normal ones, as well as with constant and adjustable strokes in the direction of their decrease from the normal one.

The most important parameters of a crank mechanical press are:

• nominal gain, t
• ram stroke length, mm
• number of strokes, min
• distance between table and ram, mm
• dimensions of table and ram, mm

These parameters determine the technological characteristics and applicability limits for the production of certain types of products.

The main units of the crank mechanical press are:

• Friction clutches clutch model UV. Brake device, designed to hold and stop the slider at any point of the stroke.
• The device for protection against overloads is implemented in our mechanical presses, by installing a special washer under the slider thrust bearing.
• The device for removing stamped parts is installed in the slider and is a special bar.
• Buffer device for pressing the workpiece during stamping to prevent the formation of folds during drawing, it is also used to remove parts from the stamp. In our presses it is implemented in the form of a pneumatic cushion of our own design, the force is regulated by setting the required air pressure in the compensating receiver. The cushion is fastened to the press table with tie bolts passing through the magnetic plate of the cushion.

Mechanical presses manufactured by the PromStroyMash plant are used for the main cold stamping operations:

• cutting
• bending
• drawing
• combined stamping

Modern components and systems from the following manufacturers are used in the production of mechanical presses:

• Camozzi pneumatic equipment, pneumatic apparatus
• Sсheider Electric, IEK, ABB electrical equipment.
• SMC lubrication systems
• OJSC UralElektro, OJSC VEM3 engines

The main focus of the plant is the supply of modern machines, as well as their maintenance, commissioning, adjustment, and modernization. We work closely with global equipment manufacturers to ensure continuous improvement in the quality of the equipment we produce.