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JMT PR4H 3030 PLATE ROLL


JMT JMT PR4H SERIES PLATE BENDING MACHINES The mechanical and hydraulic systems on JMT PR4H machine are designed by our experienced engineers. These engineers design the machines utilizing parametric 3D engineering technology as well as implementation of mechanical and static analysis. All mechanical, hydraulic, and electronic systems are designed and tested by electrical and mechanical engineers. Only following lengthy tests and evaluations are the machines authorized to be manufactured in serial production. The side rolls are guided by a rectilinear system that moves them in a straight line direction (instead of the curved path of planetary guides) giving them the strength to pre-bend and rolling heavy plates. Because of its high torque drive, a JMT machine bends the part with fewer steps. Rolls are powered by independent high torque hydraulic motors and planetary gear boxes.The activation system is positioned on the same axis as the roll, so high torque is transferred to the sheet without any power loss. Especially during the pre-bending, the hydraulic breaks does not allow the plate to slip back which may create safety problems.


Four roll plate rolls are more precise, productive, versatile, faster, safer and easier to operate than three roll machines. They are less dependent on operator competence. They are ideal for bending plates up to 90 mm thick. The fastest and most accurate bends are made by four roll machines. The plate is held securely in place between the top and bottom rolls while the side rolls move vertically to create the bend. The bottom roll moves up to hold the plate edge securely against the top roll while the side roll is raised to form an accurate prebend,minimizing the �at zone on the plate edge. Pre-bending on a three roll machine requires that plates be tilted down as they are being fed. In contrast, plates are loaded horizontally at the feed level for pre-bending on a four roll machine, which allows the ake place on either side of a four roll machine. If fed from only one side, they can even be placed up against a wall to save �oor space.

BENEFITS OF 4-ROLL PLATE BENDING MACHINES


Strengthened Bearing Guidance System

The rolls are guided with spherical roller bearings. This guidance system requires less lubrication and assures long-term precision. The most important element of a plate roll is the rolls themselves. Most machines in the market have weak rolls that deform during the bending process when small diameters of 5x the top roll are reached JMT uses high tensile carbon steel rolls that are machined by high precision CNC lathes.Â


WWW.JMTINT.COM Four roll machines are the only type of plate rolls that can effectively make use of NC and CNC controls. Because of the constant clamping and driving of the material during all steps of rolling. Bending complex shapes like polycentric or elliptic work pieces can be easily done with JMT four roll machines. Machine movements are provided by hydraulic components. The precision on the all axes are acquired by world leader Parker valves’ high speed response ability. And pressure safety valves used against peak pressures and overload provides protection for motors and other components. Electrical system designed compatible with CE safety regulations. The system consists of well-known electrical components such as Siemens, Schneider, Phoenix, Koyo and Opkon.The system is protected by current overloading for its components’, power supplies, electronics and motors. Control Unit used from world leader Esautomation from Italy.

PR4H


Balat Mh. Sihhiye Cd. O�ce 4200No:2/17 Bursa, 16140 TURKEY Tel: +90 (224) 242 16 00 Fax: +90 (224) 242 16 26 ERMAL@JMTINT.COM

JMT PR4H 3030 PLATE ROLLER  

JMT PR4H 3030 PLATE ROLLER MACHINE JMT PR4H SERIES PLATE BENDING MACHINES The mechanical and hydraulic systems on JMT PR4H machine are desi...

JMT PR4H 3030 PLATE ROLLER  

JMT PR4H 3030 PLATE ROLLER MACHINE JMT PR4H SERIES PLATE BENDING MACHINES The mechanical and hydraulic systems on JMT PR4H machine are desi...

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