Exlar introduces servo actuators with smooth and accurate rotary and linear motion control

Exlar (www.exlar.com) has unveiled its new electric actuators that provide easy-to-use rotary and linear motion for different types of motion control applications in the medical device industry. The electric actuation that utilizes servo controls also provides environmentally friendly, high-efficiency and low-maintenance solution.

Exlar’s all electric actuators are best suited as replacements for pneumatic and hydraulic actuators. The patented GS Series actuators from Exlar offer power density similar to hydraulic actuators without the mess, inconvenience and maintenance required by oil powered hydraulic systems. By using servo amplifiers, the set-up time for an Exlar electric system is far shorter than a fluid power system.

Aside from providing industrial solutions for a variety of web controls, Exlar actuators also deliver high force, precision and speed, all from a completely sealed package. Exlar’s electric actuators also make joining and fastening applications more precise with increased throughput. Their high-shock-load capacity and high-cycle-rate capability make the actuators a reliable motion solution.

In addition, controlling laser cutters, water jet cutting heads or ultrasonic welding equipment are ideal applications for the precise high-force motion from Exlar’s actuators. The precision, as well as high force from the actuators makes them optimal for assembly presses. The GS Series actuators offer precision position control at high stiffness and high forces, which are utilized in applications that require force sensing and positioning.

Servo electric damper actuators for signal changes, precise position feedback

To meet strict clean air regulations, most plants rely on low-NOx (nitrous oxide) burners in their boilers. The burners mainly rely on accurate control of the combustion air to reach the required NOx reduction. Many plants are considering advanced control option to improve the control of combustion air. However, precise position control of multiple dampers is needed in order to be successful,

To get the best damper control, engineers are currently replacing existing windbox dampers with electric servo actuators from Exlar (www.exlar.com). Each actuator, when supplied with the company’s all-digital SV positioners, will immediately respond to command signal changes within 5 mSec. The response speed combined with the all-electric actuator’s dynamic capability delivers greater repeatability and accuracy compared with pneumatic or induction motor actuators.

The patented linear actuator from Exlar is based on a unique design especially made for integrating an effective and robust threaded roller mechanism into the interior of a high performance, high power density brushless servo motor. If combined with an exact position feedback mechanism, the outcome is an extremely compact all-electric actuator, which delivers superior performance for damper control applications.

Exlar’s electric actuators have the roller screw’s design for transmitting forces. Moreover, Exlar’s high performance brushless servo motor yields control and speed that are unachievable by conventional motors.

The digital SV Series Positioners are specifically designed for use with rotary and linear actuators from Exlar for controlling dampers and valves in process control applications. The positioning of the damper along with the SV Series can be proportionally controlled in response to an analog input signal that allows simple control by PLC or DCS systems.

Additional characteristics include 3″ to 18″ stroke lengths, 2″, 3″, 4″, 5″, and 7″ frame sizes, up to 40″ per second linear speeds, up to 12,000 pounds max thrust capability, and rear clevis, front flange, double side, trunnion, side, or extended tie rods mounting options.

Exlar 2010 Catalog Details Motion Control Product Offering

Chanhassen, MN – Exlar announces its 2010 Product Catalog and Engineering Guide is now available. A manufacturer of high performance servo actuators and motors, Exlar offers seven product families featuring a broad range of capabilities with peak forces exceeding 40,000 lbf, linear speeds in excess of 60 inches per second and a life expectancy 15 times longer than that offered by ball screw technology.

The 2010 Catalog details Exlar’s selection of solutions for linear and rotary motion control applications. Product families span integrated actuator and motor designs, explosion proof designs, force tube actuators, and servo motor and gearmotors. The catalog and engineering guide additionally details Exlar’s advanced roller screw and stator technology as applied to linear and rotary actuators-with drawings, performance graphs and complete specifications for various configurations and applications. With a wide array of features and capabilities, Exlar offers several robust choices matched to each application’s diverse requirements.

An easy-to-reference engineering section includes definitions and equations for determining move-profile, velocity and acceleration, force, thrust, motor velocity and torque. Also included is a table of factors for converting units of rotary inertia, torque and material densities between English and metric units.

Exlar Corporation
www.exlar.com

Tritex™ II Series Electric Actuators

Chanhassen, MN—Exlar announces the Tritex™ II Series electric actuators, offering 1500 Watt, AC powered operation and digital position control within a single, space-saving housing. These actuators combine a brushless servomotor with either rotary or linear (output) actuation, assembling all elements into a compact, sealed housing for demanding environments. With their built-in mechanical converters, Tritex II actuators eliminate the need for traditional ball screw or gear reducer mechanisms—they incorporate all the required position control and power electronics into the actuator itself, providing a complete system solution. This design additionally eliminates the inconvenience and expense of an external servo amplifier and cables, which are often required with typical servo systems.

Tritex AC Powered Linear Actuator

The new Tritex II actuators operate from 100-240 VAC, allowing direct connection to factory power sources. Enhanced software features include 16 programmable indexes, linked moves and firmware flash upgrade capability via the actuator’s Modbus port. This port, via a RS/485 protocol, allows complete control, programming and monitoring of all aspects of the Tritex II actuator as it performs an application. Planned communications options include Modbus, Ethernet/IP™, HART, Modbus TCP/IP, CANopen, and CAN J1939 protocols.

Tritex AC Powered Rotary Actuator

The Tritex II actuator has ample I/O capability: 8 digital inputs, 4 digital outputs, plus one analog input and output. Feedback choices include analog Hall effect (standard) and incremental encoder for high positioning resolution. The new Tritex II design offers excellent connectivity with internal terminals accessible through the actuator’s removable cover. Tritex II also offers a provision for Imperial or metric threaded ports for cable sealing glands, optional M23/M16 connectors for power and I/O, with an M8 connector for the RS485 port.

Tritex II linear actuators provide the same form factor as hydraulic and pneumatic actuators and provide for simple, clean all-electric retrofits in what were formerly fluid power applications. They are available with many different mounting options (metric or Imperial) such as front flange, rear clevis mount, side mount, trunnion mount, extended tie rod, and rear flange.

Tritex II rotary actuators are available in standard IEC metric dimensions. Direct drive units, as well as units with integral planetary gearing, provide compact, powerful solutions for most rotary applications. Custom mounting and options for both rotary and linear actuators are available to meet a wide range of installation requirements.

www.exlar.com