Controlling Hydraulic Press Automation Systems

Hydraulic presses are metal forming machines that use hydraulic fluid to press material into various finished products. They can be utilized in many industries, such as agriculture or automotive manufacturing, to stamp out parts for various projects.

Maintaining the cleanliness of a hydraulic press's components and piping can extend its operational life, prevent dirt accumulation, and ensure optimal oil levels.

Programmable Logic Controllers (PLCs)

Programmable Logic Controllers (PLCs) are digital computers used in industrial control systems. They're specialized machines that manage, store and process large amounts of data.

The PLC consists of a central processing unit (CPU), read/write memory (ROM/RAM), and input/output modules. The CPU instructs the PLC to execute control instructions, communicate with other devices, perform logic and arithmetic operations, as well as run internal diagnostics.

PLCs interpret signals from sensors and switches using a program they have been programmed to comprehend. They then use these signals to operate lights, solenoids, contactors, and small motors.

Programmable Logic Controllers (PLCs) are easy to use and programmed by a wide range of people. Originally intended to replace logical relay systems, PLCs now find use in numerous industrial control applications as well. Compared to relays, PLCs can communicate over computer networks and are more durable when exposed to harsh conditions. In some cases, some even feature redundancy for increased system uptime in case of hardware failure.

Motion Controllers

Motion controllers are essential components in hydraulic press automation. They offer precise control of hydraulic actuators and often work alongside feedback sensors such as absolute/incremental encoders, resolvers or Hall effect devices to provide feedback.

Modern motion controllers feature powerful instructions that enable complex curving motions, making programming these systems simpler for both operators and engineers alike.

Hydraulic presses present an especially challenging challenge, as parts may need to be manufactured quickly but precisely. This poses both mechanical and electronic controllers with a difficult task.

Multipress utilizes Delta's RMC75 motion controller in combination with pressure transducers (load cells) and position feedback devices to deliver fast yet precise operation. The RMC75 can be programmed to switch between open loop moves and synchronized moves while also enabling pressure reversal as the press approaches its work piece; this ensures all actuators move together towards their target position and velocity simultaneously.

Variable Frequency Drives (VFDs)

Variable Frequency Drives (VFDs) are an invaluable asset in hydraulic press automation systems. Not only do they reduce energy costs, boost productivity levels and enhance product quality; but their added value to businesses can only be seen when profits soar from increased sales.

VFDs alter the supply frequency to an AC motor and adjust its speed according to application needs, enabling a smooth startup and more efficient operation of the motor.

Electrodes can also be utilized to boost the power factor of an induction motor, potentially saving up to 40% in fuel costs.

Inductive Sensors

Inductive sensors are the go-to control solution for hydraulic presses, helping reduce cycle times and boost production consistency.

Presses can be employed to shape and form a variety of products, such as car parts and food packaging. However, these complex machines require more than just basic automation in order to run optimally.

Turck offers several models with a wide sensing range to prevent collisions and damage to the press structure. No matter your application, Turck has the ideal sensor for you.