Hybrid Electro-Hydraulic Actuators for Clamping and Holding Applications

Kyntronics Hybrid Electro-Hydraulic Actuators combine the Best Features of Screw-Type and Hydraulic actuators while eliminating their shortcomings

Actuators play a key role in Clamping and Holding applications

Actuators are commonly employed in clamping and holding applications to exert force on materials or components while securely holding them in place thus improving the quality of output. Examples include:

  • Injection and blow molding
  • Tube and wire bending
  • Metal forming
  • Pressing of various materials
  • Assembly machines
  • Test equipment

Effective performance of clamping actuators have unique requirements 

For reliable operation, clamping actuators require:

  • Accurate and programmable position control
  • Accurate and programmable applied force control
  • Fast extend and retract speeds to optimize cycle times
  • High force actuation
  • Programmable acceleration/deceleration profiles to avoid damaging material and tooling

While traditional solutions like hydraulic power units with hydraulic cylinders or screw-type electro-mechanical actuators are commonly used in clamping applications, the Kyntronics Hybrid Electro-Hydraulic Linear Actuator (SHA) offers an excellent alternative. This advanced electric servo actuator outperforms conventional technologies in both efficiency and performance.

Kyntronics Hybrid Electro-Hydraulic Actuator (SHA)

The SHA is an all-electric, totally sealed, self- contained linear actuator consisting of a cylinder, pump, manifold and servo motor with optional drive/control system. There are no hoses or leak points on the SHA vs. a traditional hydraulic cylinder / HPU system and the SHA contains minimal fluid (generally measured in ounces).

Unlike other actuators, the SHA is available in many flexible configurations to fit your machine

Traditional Actuation Technology has its Challenges

 

Despite being a robust high force solution, traditional hydraulic cylinders connected to Hydraulic Power Units (HPUs) have a number of shortcomings to consider when evaluating this actuation option:

  • Inevitable leaks causing safety and environmental issues
  • High energy consumption
  • High costs for hydraulic fluid replenishment and disposal
  • High maintenance requirements and costs
Complex Issues with HPUs

Hybrid Electro-Hydraulic Linear Actuators are Used in many Clamping and Holding applications