Ohio Magnetics, Inc.

A member of the HBD Industries, Inc. family of companies

Performance-engineered magnetic materials handling equipment 

(216) 662 - 8484   or   (800) 486 - 6446

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Home / Ohio / Magnet Controllers

 

Magnet Controllers

 

New Controller:  Model RD-3A (released April 2011) 

Magnet_ControllerOhio's magnet controllers feature robust contact tips and heavy-duty movable parts. Parts interchangeability between Ohio controllers ensures that customers need a minimum of controller-related inventory. Ohio's controllers were designed to maximize worker productivity, with options for both an automatic drop and a manual drop.  Once the magnet is clean of ferrous material, another operation may begin.

 

Automatic Drop: In automatic drop mode (standard feature), the controller automatically senses the precise amount of reverse current required to clear the magnet load. The reverse current adjustment provides for a fast, clean drop of the magnet over a complete range of magnetic material with one movement of the master switch or push button. The drop circuitry is made to function by a set of adjustable timers that control drop time.

 

Manual Drop: In manual drop mode (optional feature) with low-amperage magnets, workers gain precise control over plates and the ability to dribble scrap. The controller allows for partial dropping of the load by controlling the amount of reverse current to the magnet through discharge resistors. A Drop position on the master switch or push button is spring-returned to Off, giving the operator complete control of the drop cycle.

 

Brochure Page:  Controllers (Adobe Acrobat file)

 

Model CDS

Model MC-1A / MC-1.5A / MC-2A Auto / Manual Drop Magnet Controllers

Model RD-1W Automatic Drop Magnet Controller

Model RD-3A Ohio Duty-Cycle™ Magnet Controller

Operator Control Switches

 

All electromagnet controllers serve the same functions of energizing and de-energizing the magnet. They dissipate the stored inductive energy in the magnet coil, apply a controlled amount of reverse current to de-magnetize the magnet, and turn "off" completely the power to the magnet.

 

 

Model CDS

CDS Magnet ControllerThe Model CDS magnet controller is the smallest controller in Ohio's line, targeted at locations with space constraints, to manage magnets requiring up to 20 A.

 

Features

  • Smallest available Ohio controller, at approx. 12"H x 14"W x 10"D (305 x 355 x 255 mm)

  • For use with magnets requiring up to 4,600 watts

  • Operating range: 1-20 amps DC (manual drop), 5-20 amps DC (automatic drop)

  • 230 VDC standard; 115 VDC available upon request

  • Parts interchangeability with larger Ohio controllers, to cut inventory costs

  • Automatic drop and manual drop operating modes, for maximum operating flexibility

CDS Manual for installation, operation, service and parts information, in Adobe Acrobat PDF format

 

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Model MC-1A / MC-1.5A / MC-2A Auto / Manual Drop Magnet Controllers

MC1A_inside_viewMC1A_outside_viewThe Model MC-1A Ohio Duty Cycle™ magnet controller is a wide range controller used for magnets requiring 115 / 230 volt DC operation and 20 to 100 cold magnet amps.  The Model 1.5A and MC-2A controllers offer heavy-duty magnet control for magnets whose cold current ranges from 70-130 amps DC and 100-150 amps DC, respectively.

 

 

 

Features

  • MC-1A Controller Interior ViewNew lift / drop interlock prevents resistor bank overheating

  • 230 VDC standard; also available upon request in 24 VDC and 115 VDC

    • MC-1A:  20-100 cold magnet amps; adjustable drop potentiometer

    • MC-1.5A:  65-130 cold magnet amps; adjustable drop rheostat

    • MC-2A:  100-150 cold magnet amps; adjustable drop rheostat

  • Mechanical interlock prevents resistor overheating

  • Separate resistor bank compartment prevents damage to front wiring and components

  • Available in standard automatic or optional manual drop

  • Rugged steel case construction

  • Heavy-duty parts interchangeable with other Ohio controllers, to cut inventory costs

MC-1A Manual for installation, operation, service and parts information, in Adobe Acrobat PDF format

MC1.5A and MC2A Manual for installation, operation, service and parts information, in Adobe Acrobat PDF format

 

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Model RD-1W Automatic Drop Magnet Controller

The Model RD-1W automatic controller is a “wide-range” magnet controller used for magnets from 20 amps to 100 amps DC, cold current. A reverse current adjustment provides adjustable drop time on the load over a complete range of magnetic materials with one movement of the master switch or push button. The RD-1W controller uses many parts interchangeable with both higher- and lower-range controllers for lower inventory costs.

 

RD-1W Manual for installation, operation, service and parts information, in Adobe Acrobat PDF format

 

Features

  • Wide operating range: 20-100 amps DC (automatic and manual drop)

  • Small enclosure dimensions at approx. 21"H x 16"W x 15-1/2"D (530 x 405 x 395 mm)

  • Adjustable drop potentiometer

  • 230 VDC standard; 115 VDC available upon request

  • Parts interchangeability with other Ohio controllers, to cut inventory costs

  • Automatic drop and manual drop operating modes, for maximum operating flexibility

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Model RD-3A Ohio Duty-Cycle™ Magnet Controller

The Model RD-3A magnet controller is Ohio’s highest-rated controller, featuring robust contact tips and heavy-duty movable parts. RD-3A’s amperage rating allows this controller to operate Ohio’s and competitors’ largest magnets. And, of course, it cuts inventory costs since all parts are interchangeable with Ohio's larger controllers.

 

Features

  • Heavy-duty-cycle controller, at approx. 34-1/2"H x 28"W x 14"D (875 x 710 x 355 mm)

  • For use with magnets requiring up to 46 kW

  • Operating range: 100-200 amps DC (automatic and manual drop)

  • Adjustable drop timer relays

  • 230 VDC standard; 115 VDC available upon request

  • Mechanical interlock prevents resistor overheating

  • Separate resistor bank compartment prevents damage to front wiring and components

  • Parts interchangeability with other Ohio controllers, to cut inventory costs

  • Automatic drop and manual drop operating modes, for maximum operating flexibility

 

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Operator Control Switches

Ohio offers a variety of operator control switches to meet the personal preferences of your workers. In addition to a push-button control switch, Ohio offers a standard lever-type switch and reduced voltage packages.

 

Push Button Type Switch

  • Red Lift button; Green Drop button

  • Dimensions: 5-3/16"H x 2-13/16"W x 4-1/4"D (130 x 70 x 110 mm)

 

Standard Lever Type Switch

  • 3-position drum switch

  • Spring return lever from drop to center position

  • Dimensions: 4-5/8"H x 4-7/16"W x 5-3/4"D (120 x 110 x 145 mm)

  • Optional Heavy-Duty Master Switch: Dimensions: 11-3/4"H x 6"W x 7-1/4"D (300 x 150 x 185 mm)

  

Reduced Voltage Package

  • 12 or 24 V

  • Cab-mounted or joystick-mounted lift/drop buttons

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To get a customized solution for your specific application, contact the factory, or talk with the Ohio rep / dealer nearest you.