Sheet Metal Roller CORMAK RM1270/90

Machine Description:

• RM series machines are designed for standard sheet metal bending to produce cylindrical forms, without pre-bending (as standard). The sheet is clamped between the central drive rollers. The upper roller is fixed, while the lower roller moves vertically to adjust for the required sheet thickness. The required bending radius is obtained by shifting the side roller.
• Sheet metal bending is an important working function that determines the quality of the final component and consists of bending the sheet edges (pre-bending), allowing for a uniform, closed shell. To bend in both directions, the sheet must be repositioned, and the side roller pressed twice.
• The asymmetric roller arrangement enables pre-bending by adjusting the side roller. Optionally, an electric drive can be mounted on the side roller to allow pre-bending.
• As standard, the RM series rollers can achieve a minimum diameter equal to three times the upper roller diameter, when bending metal with a cold yield strength of 260 N/mm² and bending strength of 24 kg/mm².
• The upper roller is foldable, which facilitates the removal of finished products. The foldable roller is equipped with a lock preventing accidental opening during operation.

Processing Diagram:

Main Advantages:

• Robust welded steel frame.
• Rollers made of high-tensile steel according to SAE 1050 quality certification, hardened and ground.
• Upper and lower rollers driven by an electric motor via a reducer and chain, ensuring stable bending under load and improved productivity.
• Upper roller can be released sideways, equipped with a supporting system.
• Lower and side rollers with height adjustment (manual in standard configuration).
• Rollers equipped with grooves for bending rods.
• RM models provide the possibility of conical bending.
• Optional motorised lifting of lower and side rollers – enables pre-bending with the best quality and repeatability.
• Optional digital display of the motor-driven lower and side roller position.
• The machine is manufactured in compliance with the EC Safety Directive (CE mark) / Declaration of Conformity.

Technical Parameters

NOTE: The rated parameters of the standard equipment are based on materials with a cold yield strength of 260 N/mm².

Optional Equipment*:

• Motorised side roller (electric drive).
• Digital position indicator for the side roller.

*The price quoted refers to the machine itself, excluding optional/additional equipment, installation, transport and training — please contact our consultant for more details.