|Project Name||Folding Press|
|Industry||Forming machine tools and presses|
|4EE Levers||Energy System Design, Efficient Components, Energy Recovery, Energy on Demand|
Folding presses correspond to the traditional automation approach: A central unit with fixed displacement pump, as well as two control manifolds with control valves ensure powerful and precise movements. The goal was to improve energy efficiency with an auxiliary process time of 20 percent.
The Rexroth 4EE Solution
Two Sytronix SvP 7000 servo drives operate two fixed displacement pumps with variable speed and lower power consumption as needed during the auxiliary process times. As the axes are now only controlled when in drive mode, the control valves can be omitted.
Even though auxiliary process times only account for 20 percent of the cycle, the automation was able to realize energy savings of 43 percent. At the same time, average noise emissions have been reduced by over 10 percent.
• Energy consumption: 57,300 kWh/a
After Rexroth 4EE
• Energy consumption: 24,600 kWh/a
• Savings: 32,700 kWh/a
Experience is especially important when it comes to plant construction and engineering. Our specialists are fully focused on the requirements in your industry. We always advise you on a technology-neutral basis, placing your application at the center.