Plate roller: the models on the market

Plate roller: the models on the market

For industrial plate and sheet bending jobs, there is no more efficient and resistant machine than a plate roller . A plate roller, also known as a plate calender or hydraulic rolling machine, uses state-of-the-art technology and its impressive hydraulic force for bending, deforming and rolling different types of sheet metal into circular or conical shapes.

Since 1960 Seravesi has been manufacturing technologically advanced plate rollers divided according to the rollers they are made of. So we will have 3-roller plate roller ( E79 of 1960 Seravesi ) and 4-roller plate roller ( R172 of 1960 Seravesi ).

3-roller plate roller: E79 from 1960 Seravesi

The E79 of 1960 Seravesi is a 3-roller hydraulic rolling machine composed of the lower rollers with variable axes and the motorized upper roller with hydraulic vertical movement. The E79 machines of 1960 Seravesi are available with capacities from 25 mm up to 300 mm and roller lengths from 1000 mm up to 6000 mm.

The rollers of the 1960 Seravesi E79 are in special alloy steel 42CrMo4 or carbon steel C45, forged and tempered. The upper roller is motorized with a planetary reduction gear and hydraulic motor, while the side rollers are equipped with an automatic braking system to prevent the sheet from slipping.

We are talking about a plate roller from 2 pumps up to 8 pumps for larger sizes and for maximum thrust in pressing and rotation. Having a system with more pumps, the E79 of 1960 Seravesi always guarantees the contemporaneity of the movements , that is the possibility both to rotate and to press to the maximum capacity. In the event of a pump failure, there is no problem because the 1960 Seravesi E79 can still be used even with reduced performance.

The cylinders of this model of plate roller are made of alloy steel and carbon steel, with chromed rod and use seals from leading brands. A highly efficient machine used in numerous processing fields such as that of sheet metal roller shutters.

The E79 of 1960 Seravesi is equipped with a hydraulic control unit consisting of: motor pump unit, solenoid valves and maximum pressure valves which guarantee the protection of the system from overload.

We are also talking about a plate roller model equipped with an oleodynamic opening bracket to allow horizontal extraction of the product tube and a centralized and automatic lubrication system with pump equipped with an independent tank, programmable from the operator panel. In addition, it has a modem to remotely control the PLC in case of remote assistance and an air or water oil cooling system.

These were some of the technical features of the 3-roller plate roller. Let's now see the specifications of the 4-roller plate roller.

4-roller plate roller: RI72 from 1960 Seravesi

In the field of 4- roller plate rollers, the 4 Rolls Plate Bending Machine , called RI72 of 1960 Seravesi, is one of the most manageable and simple to use thanks to the possibility of comfortably accessing the hydraulic parts and the opportunity to always have it under control. state of efficiency of the machine with a quick glance at the control panel always within reach of the operator, so as not to encounter problems of any kind and have an excellent business digitization.

Perfect pre-curvature, speed and reliability, easy to use, precision positioning. These are the main characteristics of a 1960 Seravesi RI72 characterized by solid metal carpentry and linear structures. But let's go into detail and take a closer look at the machine for a complete overview of its features.

The 1960 Seravesi RI72 plate rollers are available with capacities from 25mm up to 300mm and roll lengths from 1000mm up to 6000mm. Roll positioning accuracy is guaranteed over time thanks to a linear guide system. The lower rollers are guided inside the machine structure, eliminating the possibility of play due to machine wear, unlike what happens on other machine models.

The pre-bending is made without using any lever system but following a minimal straight section thanks to the high force of the cylinders on the lower rollers. So we are talking about a perfect pre -bend also thanks to the elimination of the friction of the rollers guaranteed by a system of lubricated bronze guides. In addition, each roller of the RI72 of 1960 Seravesi uses two linear potentiometers that guarantee the parallelism of the rollers that are independently adjustable and easily inclined to allow the execution of the cone bending.