Toyokoki has been a pioneer in press brake design
for over 50 years. The Toyokoki HYB, or "hybrid" series was developed by
combining the best aspects of a conventional hydraulic brake with Toyokoki's AC
servo brakes, said the company. Toyokoki has been a pioneer in press brake design
for over 50 years. The Toyokoki HYB, or "hybrid" series was developed by
combining the best aspects of a conventional hydraulic brake with Toyokoki's AC
servo brakes, said the company.
"Although the HYB uses hydraulic pressure to move the ram, the oil is delivered by an AC servo motor pump which does not rely on valve operation for precision control nor subject to variations in oil temperature and pressure," said a company spokesperson.
"In standard hydraulic brakes, the refined hydraulic circuit allows users to easily change the ram speed and pressure. Immense power and high speed can be generated with the input of only a small amount of energy.
"In AC servo brakes, a ball screw drive and AC servo motor is a standard combination used for precision control, enabling extremely high repeatability and a stop accuracy to the micron level.
"The HYB Series is so accurate, it achieves repeatability of five microns (0.0002"). Lower bed crowning on the HYB is controlled by a unique double wedge system that is adjustable across the entire bed. The control automatically sets the amount of crown, but when fine-tuning is necessary, the crown will automatically be adjusted to correct the bed to match angles.
"The HYB also controls ram speed and positioning with one micron resolution scales that read ram position 1000 times a second. In turn, feedback is sent to the ram AC servo motors to ensure that the ram velocity is constant and no over-travel can occur. No other press brake monitors its ram position and velocity to prevent over-travel or over-bending," the spokesperson said.
For more information contact:
Toyokoki
c/o MC Machinery Systems, Inc.
1500 Michael Drive
Wood Dale, IL 60191
630-616-5920
E-mail: mitsedm@mcmachinery.com