THE ROLE OF SERVO CONTROLLED ACTUATORS FOR PRECISE MOTION IN INDUSTRIAL AUTOMATION

Kyntronics’ hybrid linear actuators (SHA) offer advanced solutions for industries requiring accuracy, efficiency, and durability. Unlike traditional hydraulic systems, these electro hydraulic servo actuators incorporate a servo motor for bi-directional operation, enhancing control and performance.

SERVO CYLINDERS

Servo cylinders are linear servo actuators that utilize hydraulic, pneumatic, or mechanical technology to achieve linear motion. Kyntronics’ servo cylinders, also known as hybrid actuators, provide precise control for critical applications. Unlike conventional hydraulic cylinders that depend on proportional servo valves, Kyntronics actuators use a bi-directional servo motor for precise speed and torque control.

Kyntronics Hybrid Linear Actuators – Key Features:

• Uses a servo motor to control pump operation for extending and retracting the cylinder rod.
• Closed-loop motor speed and torque regulation ensure precise force and speed control.
• Position sensors or limit switches and pressure sensors provide feedback for programmable position and force control.
• Offers superior reliability and low maintenance compared to traditional hydraulic and electro-mechanical technologies.

SERVO HYDRAULIC ACTUATORS

Servo hydraulic actuators are linear actuators that achieve motion using hydraulic technology. Kyntronics’ Hybrid Linear actuators (SHA) provide an advanced alternative to traditional servo hydraulic actuators by eliminating the need for an HPU, hoses and proportional servo valves, instead using an integrated servo motor.

Advantages of Kyntronics SHA:

• Self-Contained System: Unlike traditional hydraulic systems, the SHA is entirely sealed, eliminating leaks and reducing maintenance requirements.
• Shock Load Resilience: Integral hydraulic cylinder design enhances durability under heavy loads.
• Precise Control: Position and optional pressure sensors provide real-time feedback for programmable movement.
• Energy Efficiency: Operates on a power-on-demand principle, reducing energy consumption.

COMPARING ACTUATION TECHNOLOGIES

Manufacturers often choose between hydraulic cylinders and electro-mechanical screw-type actuators for servo-controlled applications. While both have their benefits, each comes with limitations. Kyntronics hybrid linear actuators provide unique advantages that set them apart:

• Energy Savings: Power-on-demand reduces energy consumption compared to constant-pressure hydraulic systems.
• Low Maintenance: No fluid changes like traditional hydraulics or frequent lubrication required by ball or roller screw actuators.
• High Durability: Resistant to shock loads, side-loading, and end-stop crashes that often damage ball and roller screw actuators.
• Leak-Free Design: Fully sealed housing eliminates hydraulic leaks.
• Increased Reliability: No metal-to-metal wear, unlike screw-type actuators, leading to longer lifespan and consistent performance.

Kyntronics hybrid actuators are available in two configurations:

1. Total Solution: Includes actuator, servo motor, drive, controller, and software for an all-in-one system.
2. Actuator-Only: Allows integration with a customer-supplied motor, drive, and controller for customized applications.

TECHNICAL SPECIFICATIONS

Kyntronics hybrid electro-hydraulic actuators are available in various sizes to accommodate diverse industrial needs:

• Force Range: <100 lbs. (0.4 kN) to 150,000 lbs. (667 kN)
• Speed: Up to 34.5 in/s (877 mm/s)
• Stroke Length: Any increment up to 120 in. (3,048 mm)
• Input Power: 24 – 80 VDC or 120 – 480 VAC

THE BOTTOM LINE

Kyntronics servo-controlled hybrid actuators provide a cutting-edge solution for industrial automation. By offering precise motion control, energy efficiency, and durability, these actuators outperform traditional hydraulic and electro-mechanical alternatives. With both Total Solution and Actuator-Only configurations, Kyntronics ensures flexibility and adaptability for various industrial applications.