Explosion-proof linear actuators for demanding environments

Exlar’s linear actuator line has been expanded to include the EL100 explosion-proof linear actuators, rated for Class I, Div 1, Groups B, C, D and T3 hazardous environments.

11/05/2010


Exlar’s linear actuator line has been expanded to include the EL100 explosion-proof linear actuators, rated for Class I, Div 1, Groups B, C, D and T3 hazardous environments. The EL100 linear actuators also meet ATEX requirements for use in potentially explosive atmospheres and are in conformity with the EU ATEX Directive 94/9/EC.

The EL Series linear actuators integrate a highly efficient planetary roller screw mechanism with a high torque servomotor in a single self-contained package. The roller screw consists of multiple threaded rollers assembled in a planetary arrangement around a threaded shaft. This highly robust design is engineered to provide reliable and precise operation over thousands of hours, handling heavy loads even under extremely demanding conditions.

Exlar’s servo-electromechanical systems offer clean, fast, simple and cost effective replacements for hydraulic actuation and long lasting alternatives to pneumatic actuation. Reduced emissions and energy consumption (80 percent system energy efficiency) as well as increased position control and accuracy—all leading to reduced cost—are provided by servo electric actuation. Other features that make Exlar’s servo-electromechanical systems particularly easy to set-up and use include:

  • Speeds up to 25 ips
  • Forces up to 2000 lbs
  • 8 pole brushless motors
  • Strokes up to 6 in.
  • Feedback configurations for nearly any resolver-based servo amplifier
  • Several mounting configurations
  • Windings available from 24 VDC to 460 Vrms
  • CSA Class I, Div 1 Group B, C, D and T3 hazardous environment rating
  • ATEX II 2 G Ex d IIB T3 Gb IP66
  • Completely sealed motor for trouble-free operation

For process applications, the EL100 offers a unique combination of high speed, performance and accuracy in a compact package when coupled with Exlar’s EXP Series Positioner. High performance is achieved with respect to speed, linearity, load sensitivity, deadband and temperature range. For valve and damper control, the EL Series actuators continuously hold the position of the valve stem or shaft allowing extremely fast response to the smallest command signal changes without overshoot even when friction is present. This results in improved loop performance and reduced process variability.

EL Series explosion-proof actuators are well-suited to many applications, such as:

  • Valve control
  • Damper control
  • Printing presses
  • Engine test stands
  • Fuel skids
  • Refineries
  • Paint booths
  • Shipboard fuel management

Exlar’s EL Series provide a cost-effective solution even in the most severe and demanding environments.

Exlar Corporation

www.exlar.com

Also read:

Electromagnetic Linear Encoders to the Rescue; and see the

Control Engineering motors and drives new product area.


- Edited by Amanda McLeman, Control Engineering, CFE Media, www.controleng.com



No comments
Consulting-Specifying Engineer's Product of the Year (POY) contest is the premier award for new products in the HVAC, fire, electrical, and...
Consulting-Specifying Engineer magazine is dedicated to encouraging and recognizing the most talented young individuals...
The MEP Giants program lists the top mechanical, electrical, plumbing, and fire protection engineering firms in the United States.
Water use efficiency: Diminishing water quality, escalating costs; Lowering building energy use; Power for fire pumps
Building envelope and integration; Manufacturing industrial Q&A; NFPA 99; Testing fire systems
Labs and research facilities: Q&A with the experts; Water heating systems; Smart building integration; 40 Under 40 winners
Maintaining low data center PUE; Using eco mode in UPS systems; Commissioning electrical and power systems; Exploring dc power distribution alternatives
Protecting standby generators for mission critical facilities; Selecting energy-efficient transformers; Integrating power monitoring systems; Mitigating harmonics in electrical systems
Commissioning electrical systems in mission critical facilities; Anticipating the Smart Grid; Mitigating arc flash hazards in medium-voltage switchgear; Comparing generator sizing software
As brand protection manager for Eaton’s Electrical Sector, Tom Grace oversees counterfeit awareness...
Amara Rozgus is chief editor and content manager of Consulting-Specifier Engineer magazine.
IEEE power industry experts bring their combined experience in the electrical power industry...
Michael Heinsdorf, P.E., LEED AP, CDT is an Engineering Specification Writer at ARCOM MasterSpec.