Rolls plate bending machine: how they work

Rolls plate bending machine: how they work

The Italian industry still boasts among its excellences family-run companies that preside over the market with efficiency and professionalism, becoming a sure point of reference for users. Among these realities Seravesi 1960 produces and tests 3 and 4 Rolls plate bending machines, thanks to the support of expert operators, who proceed with the assembly at the end customer with attention, precision and care.

The 1960 Seravesi plate rolling machines are distinguished by their characteristics and functioning, let's see which ones.

E79 from 1960 Seravesi features and functioning

The E79 of 1960 Seravesi is a total invitation 3 rolls plate bending machine equipped with lower rollers with variable axes and a motorized upper roll with hydraulic vertical movement.

These roll plate bending machines are found with capacities from 25 mm up to 300 mm and roll lengths from 1000 mm up to 6000 mm.

Thanks to its particular construction concept, the E79 of 1960 Seravesi has smaller dimensions than the traditional 4 rolls, as well as a straight section that is always shorter than the 4 rolls, and thanks to the inclination of all three rollers, the possibility of performing conical machining even difficult in a simpler way. 

The invitation obtained thanks to the high thrust of the upper roller, used as a press brake, is excellent. The lower rollers can be moved horizontally and independent of each other with a variable pitch, while the motorized upper roller translates vertically. Furthermore, by increasing the center distance of the lower rollers, thick sheets can be calendared while, by decreasing the center distance, low thickness sheets can be calendared, obtaining small diameter pipes. 

The E79 of 1960 Seravesi is a 3 rolls plate bending machine that allows the creation of cones. The lower rollers and the upper roll tilt independently up to 2 °. Furthermore, it is safe for the operators: thanks to its geometry, the sheet remains in a horizontal position during its use. Furthermore, the machine is set up for mushroom-shaped emergencies for an instant stop.

One of the peculiarities of the E79 of 1960 Seravesi is that it is simple to use and maintain thanks to an easy accessibility of the hydraulic parts and to the diagnostics present in the control panel, within easy reach of the operator.

Last but not least is its size, small and compact compared to other calenders.

How to use the E79 of 1960 Seravesi:

The E79 of 1960 Seravesi is used by inserting the sheet metal between the rollers. Then rollers B and C must be moved horizontally so that roll B is under roll A. The operating process then involves moving roll A downwards in order to perform the pre-folding. Repeat the step for the other side of the sheet and place the rolls in the standard pyramid position and close the tube

RI72 of 1960 Seravesi: characteristics and functioning

The RI72 of 1960 Seravesi is an integral oleodynamic drive rolling machine characterized by 4 rollers with double infeed, capable of carrying out a linear movement with bronze guides.

The RI72 series roll plate bending machines are available from 25 mm up to 300 mm and roll lengths from 1000 mm up to 6000 mm.

Thanks to an impactful thrust force of the cylinders on the lower rollers, mounted directly under the rollers, the invitation of the 1960 Seravesi RI72 is perfect, thanks to a minimal straight line and linear movement. From here it follows a precision of positioning of the rollers that resists over time thanks to the linear guide system. The lower rollers are guided inside the machine structure, eliminating the possibility of play due to wear of the machinery.

The system of lubricated bronze guides also cancels the sliding friction of the rollers: In this regard, the parallelism of the lower rollers is ensured by a system that uses a double linear potentiometer for each roller. As a result, the rolls are independently adjustable and easily tiltable to allow conical calendering to be performed.

Sturdiness, speed and reliability, combined with ease of use and maintenance thanks to an easy accessibility of the hydraulic parts and to the diagnostics present in the control panel within reach of the operator.

How to use the RI72 of 1960 Seravesi:

The operation of the 1960 Seravesi RI72 involves inserting the sheet metal between the rollers and aligning it with the side roller. Next it is necessary to clamp the sheet metal between roll D and C and create the invitation using roll A. The process of use continues to continue to form the desired sheet diameter between the rollers using both roll A and roll B, as well as create the second invitation using roller B.