As of March 26, 2010 Joliet Technologies is no longer representing the Avtron line of products.

We do however represent the Dynapar line of Rotary Feedback Products.

Avtron – Adjustable Speed Drives and Drive Systems

Joliet Technologies is the preferred Avtron Integrator for the Chicagoland area.

Adjustable Speed Drives and Drive Systems

Capabilities and Applications

Our Specialty

Zero downtime coordinated drive system retrofits and start-ups based on the unique capabilities of the ADDvantage-32 product line. The “smart drive” concept embodied in the ADDvantage-32 includes hardware and software features aimed at retrofit applications.

We will integrate the drive system with virtually any brand PLC to minimize customer learning curve and spare parts inventory. We can provide SCR (Silicon Controlled Rectifier) firing hardware capable of directly firing old vintage GE, Westinghouse, or other bridges with series and parallel SCR’s.


Avtron has maintained a consistent reputation as a leader in the field of digital control and machine coordination. Our capabilities are wide and varied, with expertise in the following areas.

Application Capabilities

  • New DC Drives through 10,000 amps, 1000 VDC
  • New AC Drives through 1200HP, 575 VAC
  • Digital Retrofit Regulator for existing AC or DC drives, any vintage or HP size
  • Digital Field Supply for MG Set Retrofit through 550 amps
  • Digital Motor Field Supply for Helpers or Shared Armature Systems
  • Digital Regulator and Firing Retrofit to Fire Existing SCR Bridges
  • Parallel Bridge Firing Retrofit Without Modification to existing SCR Cases
  • Six or Twelve Pulse SCR Bridge Firing
  • System Integration Level 1 and Level 2 PLC and MMI, GE, AB, Modicon, TI, PLC Direct System Integration and Programming
  • Rotary Pulse Generators for Drive and Instrumentation Feedback
  • Industrial Resistors
  • Hot Mill Table Roll Control Options

Call Joliet Technologies TODAY 

If you have any questions concerning Avtron’s Adjustable Speed Drives and Drive Systems or related products, please contact us by:
Phone (815) 725-9696,
Toll Free (866) 492-9888,
Fax (815) 725-9393 or

On-Line Quotation Form

On-Line: Digital Drive Price Quotation Form

Joliet Technologies is an OEM that custom packages, integrates and engineers AC Variable Frequency Drives (VFD), DC Variable Speed Drives (VSD) and AC Drive Controllers. Our drive systems integrate top of the line manufacturers, like ABB, Emerson (Control Techniques & Saftronics / Fincor), Siemens and WEG to name a few. Our added value custom drive packages are built to your specifications for your application. We specialize in large horsepower drive systems (500Hp and above). Call us at (815) 725-9696 or fax us at (815) 725-9393 or e-mail us or fill out an RFQ with your requirements. Serving the greater Chicagoland area and the World.