Best Replacements for Electromagnetic Chuck Controllers — Neutrofier, Electro-Matic, Neutrol & More

What Replaces an Electro-Matic of Chicago or Neutrofier Controller? Electro-Matic Products Co. of Chicago — the original manufacturer of the Neutrofier, Neutrol, and Minatron electromagnetic chuck controllers — is out of business. Because parts are scarce and repair costs are sky high, the most cost-effective replacement for any Electro-Matic controller is a Braillon iBUE or iBUET series control unit.

Our modern controllers directly replace all legacy Electro-Matic / ELMATCO models. Upgrading to a Braillon unit provides fully automated demagnetization, modern PLC integration, machine interlock, USB programing and a full manufacturer warranty — features impossible to get when repairing 30-year-old technology.

Electromagnetic chuck controller 150W
Discontinued BrandLegacy Model / Part NumberRecommended Braillon Upgrade
Electro-Matic EML 20 • CAV3-11 • 11671LO2
CEDV10 • CEDV15 • CEDV15-20841 • CEDV15-027064 • CEDV20
2NR27		iBUET Series
Neutrofier EMLV7D • EMLV15D • EMLV50D
NRV3FD-46
2506E-B 94V-0 (Control Board)
4RCSA • 4RC6A • 4RC8 • 4RC9 (Remote Controllers)		iBUET Series
Neutrofier II 17RC3BE-2 • 17RC3BE-1 • 17RC3AE • 17RC3E
CAV3A-11 • CAV3-71A-11 • CAV1.5-71A-11 • CAV3-21-11
REV A CEV (Control Board)		iBUET Series
Neutrofier III TDV10-41
25RC1E (Control Station)
030701 / T3DV20-42		iBUET Series
NeutrolContact us to identify your modeliBUET Series
Neutrol II 031982 • 031979
110821 (Control Station Keypad)		iBUET Series
Minatron C2VRSiBUET Series
Magnetic Chuck Control 01417F01iBUET Series

DON'T SEE YOUR MODEL LISTED? REACH OUT

If you are replacing a legacy Neutrofier, Electro-Matic, or Neutrol controller and are unsure of your chuck’s specifications, contact Braillon Magnetic Systems Inc. at +1 312 912 1355.
Our engineers will help you identify the correct replacement controller for your specific machine and chuck combination — at no charge.

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STANDARD SWAP OPTIONS AND MORE AVAILBLE ON REQUEST

ModelWattageInput (Vac)Output (Vdc)Transformer (included)Wiring AWG/MM2Enclosure Size inch/mm
iBUET150 150 Watt115110 VdcNot Applicable16AWG / 3G1,5 mm212"x8"x9" / 300x200x210mm
iBUE 340 Watt230110 VdcNot Applicable16AWG / 3G1,5 mm212"x8"x9" / 300x200x210mm
iBUET340 340 Watt115/230/480110 Vdc5 Amp16AWG / 3G1,5 mm220"x16"x9" / 500x400x210mm
iBUET550 550 Watt115/230/480110 Vdc5 Amp16AWG / 3G1,5 mm220"x16"x9" / 500x400x210mm
iBUET1100 1100 Watt115/230/480110 Vdc10 Amp14AWG / 3G2,5 mm220"x16"x9" / 500x400x210mm
iBUET1100 1100 Watt115/230/480220 Vdc5 Amp14AWG / 3G2,5 mm220"x16"x9" / 500x400x210mm
iBUET2200 2200 Watt115/230/480220 Vdc10 Amp14AWG / 3G2,5 mm220"x16"x9" / 500x400x210mm
iBUET3000 3000 Watt115/230/480110 Vdc30 Amp12AWG / 3G4 mm220"x16"x9" / 500x400x210mm
iBUET6600 6600 Watt115/230/480220 Vdc30 Amp12AWG / 3G4 mm220"x16"x9" / 500x400x210mm

Compatible Machine Types: Blanchard, Mattison, and all other Surface Grinders

Braillon electromagnetic chuck control units are fully compatible with Blanchard rotary surface grinders, Mattison grinders, and all standard surface grinders and milling machines.

Rotary Surface Grinders

Blanchard and Mattison grinders rely on high-wattage electromagnetic chucks. Our iBUET series controllers (up to 6600 Watts) are the ideal modern replacements for all aging electromagnetic chuck controllers.

STANDARD SURFACE GRINDERS

Reciprocating surface grinders from DoAll, ELB, Harig, Brown & Sharpe, Okamoto, and many more. The Braillon iBUET series is the perfect feature-rich replacement for any machine with a magnetic chuck.

MILLING MACHINES AND EDM

For milling machines and sinker EDM equipment, Braillon controllers also support variable force output, allowing precise control of holding power for delicate operations.

UNIVERSAL COMPATIBILITY

Braillon controllers work with electromagnetic chucks from any manufacturer. If the magnet runs on 110VDC, 115VDC, 220VDC, 240VDC, or even 400VDC, we can control it.

How TO SELECT THE RIGHT magnet CONTROLLER

Selecting the right electromagnetic chuck controller is a critical step — the wrong unit can damage your chuck, reduce holding force, or fail to demagnetize properly. The process involves four key considerations, and Braillon provides free engineering support to help you get it right.

MATCH THE CHUCK'S RATED VOLTAGE (VDC)

Every electromagnetic chuck has two electrical specifications stamped on its nameplate: rated voltage (typically 110VDC or 220VDC) and rated current (in Amps). These two numbers determine the wattage your controller must deliver. The formula is simple: Watts = Voltage × Current. For example, a chuck rated at 110VDC and 5A requires a 550W controller. Use our built-in Ohm’s Law and Power Calculator on this page to calculate your exact wattage requirement if you have any two of the four values (Voltage, Current, Resistance, or Power).

Match the Input Voltage at Your Machine (VAC)

Braillon controllers are available in single-phase and three-phase configurations accepting 115Vac, 230Vac, or 480Vac input. You must match the input voltage available at your machine’s electrical panel. The iBUET series accepts universal input (115/230/480Vac), making it the most flexible option for shops with varied power supplies.

Decide on Control Method: Manual, Automatic, or PLC-Integrated

For traditional manual operation, a standard iBUET controller with ON/OFF and demagnetization controls is sufficient. For automated machining cells where the chuck must be activated and released by the machine cycle, Braillon controllers include a full PLC machine interface that integrates directly with your CNC or grinding machine’s control system. This is the modern equivalent of what the Neutrofier III and Neutrol II, but with full digital capabilities.

Account for Protection and Safety Features

All Braillon controllers include overload protection, overvoltage protection, and short-circuit protection as standard. These features protect both the controller and the chuck during abnormal operating conditions — a critical consideration for high-value grinding operations where a loss of magnetic hold can damage the workpiece, the chuck, or the machine. A standard machine interlock comes with all our control units.

Running Multiple Chucks in Parallel?

PRO TIP! If you have multiple electromagnetic chucks setup in parallel and you need help calculating the total resistance, then check out our Parallel resistance calculator.

NOT SURE? CONTACT OUR ENGINEERS

If you are replacing a legacy Neutrofier, Electro-Matic, or Neutrol controller and are unsure of your chuck’s specifications, contact Braillon Magnetic Systems Inc. at +1 312 912 1355.
Our engineers will help you identify the correct replacement controller for your specific machine and chuck combination — at no charge.

EMAIL US
1 Ohm's Law
1. Ohm’s law calculator will help you fill in the blank, if you are missing either:
  • Voltage (V)
  • Current (I)
  • Resistance (R).
  • The law is simply V=IxR.
2 Power Calc.
2. Power Calculator will allow you to calculate the Wattage you are dealing with.
  • Watts = Volts x Amps.
3 Done!
3. Now you have all the info you need! JUST pick the correct rectifier for you.
  • Example… Chuck =110VDC X 3Amps =330 Watt.
  • So, you will need the Model iBUET340.

 

Helpful Power Calculator






Why Braillon Electromagnetic Chuck Controllers Outperform Every Legacy Unit

#FeatureWhat It Means for Your Shop
1Operate Different Designs & BrandsOne controller runs magnetic chucks and lifting magnets from any manufacturer. Wattage range: 340W to 6,600W.
2Total DemagnetizationDemagnetization cycles optimized per chuck type. Up to 10 custom programs saved via USB key. Optional T20 Remote Control for easy program selection at the machine.
3Full PLC Machine InterfaceChuck activates, releases, and demagnetizes automatically from your machine’s PLC. Built-in machine interlock prevents cycling if the chuck is not fully energized.
4Offsite Remote AssistanceBraillon engineers can remotely diagnose and reconfigure your MC20 controller without a service visit — resolving issues in minutes, not weeks.
5Adjustable Settings by USB KeyConfigure the unit, save history and error logs, and fine-tune magnetization, residual magnetism, and demagnetization timing — all via USB key, no proprietary software needed.
6Control Up to 8 Chucks SimultaneouslyThe MC20 manages up to 8 electro-permanent magnetic chucks at once — ideal for Blanchard grinder setups and automated production cells.

ELECTROMAGNETIC CHUCKS

TAKE A LOOK AT OUR GREAT LINE OF ELECTROMAGNETIC CHUCKS
See more electromagnets now

ELECTRO-PERM CONTROLLERS

LOOKING FOR AND ELECTRO-PERMANENT CONTROL UNIT?
SEE YOUR EPM OPTIONS

The best replacement for a Neutrofier II (models 17RC3BE-2, 17RC3BE-1, CAV3A-11, CAV3-71A-11) is the Braillon iBUET series controller — a direct modern upgrade with better demagnetization and variable force control.

If we have the spare parts to your particular controller, then we are happy to repair or help point you the right direction. Recently, many customers have been searching for parts or replacements to their Electro-Matic of Chicago controllers. We have been able to help customers that have such control units as the minatron, neutrofier, neutrol, neutrofier ii, neutrofier 2, neutrofier 3, neutrofier iii. We have soltions any other type of control units.

Electromagnetic controllers are responsible for changing AC into DC for electromagnetic chucks. It also allows the operator to use variation of force which controls the strength of the magnetic field that is created by the coils in electromagnetic chucks. This allows the operator to use a potentiometer and precisely adjust the holding force of the electromagnetic chuck.


Electromagnetic chuck control units are expected to work constantly to change AC into DC for the magnetic chuck. If, there is a loss of electricity then it also means no magnetic field is being created by the coils inside the magnetic chuck. In contrast the electro-permanent chuck control unit is only needed during the magnetizing or Demagnetizing of electro-permanent magnetic chuck.

The short answer is yes. The two terms control unit and rectifier are interchangeable. They both take Alternating Current (AC) and turn it into Direct current (DC) for electromagnetic chucks or lifting magnets.