the most advanced 3 rolls bending machine

3 roll variable axis plate bending machines are used for bending medium to thick plates. They are very precise and easy to use. There are advantages by using this system where the two side rolls move horizontally – left and right, while the top roll moves up and down. When feeding the material into the machine it does not tilt up like it would on a double pinch three roll bender, but stays parallel to the ground allowing easier and safer material handling. When positioning the side rolls at their farthest position, you can increase the rolling capacity by up to 50% more than on a traditional 3 or 4 roll bending machine. Three driving rolls offer full control over the bending process.

3 roll bending machine variable geometry
3 roll bending machine variable geometry

ERGONOMIC CONTROL PANEL. As place your hands on the control console, you will immediately be aware that all the controls are exactly where you would expect them to be.


The wide BASED ANGLED FRAME bulkhead construction is designed to bring increased stability to the whole structure, designed by ROCCIA engineers to absorb side thrust forces during plate rolling cycles.

A ROCCIA 3 roll machine utilizes 3 driven rolls to ensure the rolling torque power transfer. Single unit high torque hydraulic MOTORS/PLANETARY GEARBOXES are directly mounted onto each driving roll to ensure a smooth feed through of the plate, there is no loss of power normally associated with secondary transmissions, plus the added benefit of one less gearbox to maintain.

By having THREE INDIPENDENTLY DRIVEN ROLLS it assures a firm and smooth feeding of the material through the machine which is a key feature of our HR3WS models.
This system is clean, maintenance free and efficient. By not using gears or chains you will not have a loss in torque as you would in an ordinary transmission driven plate bender. The hydraulic motors and gear boxes are coupled directly on the rolls.

ROLL DESIGN CALCULATION. It is the heart of the machines performance; it’s what makes a ROCCIA plate roll different from the competition.
Roll camber calculation. Roll camber is required to counter act roll deflection that occurs as bending forces are applied, so as to ensure a perfect closing of the longitudinal seam, it is a vitally important factor. If the camber is calculated incorrectly, the result will be, (1) a barrel shaped cylinder ie not closing perfectly along the longitudinal seam, gap in the middle, (2) an hour glass shaped cylinder, the longitudinal seam touching in the middle, but not at the ends. ROCCIA roll dimensioning camber calculation are done on sophisticated 3D cad software that produces all the critical data required for every step of the rolling process. Roll calculations are seldom to standard formulae, no, they are calculated around customer requirements, this being, material type, mechanical strength, material thickness, the rolls cylinder length dimension. Only this way can we grant the performance and the precision of the plate rolling machine we manufacture for you.