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Butterfly Ring Taper Story


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A busy OEM had a bottleneck in their exciter line and their engineers were in a panic. Large metal rings with lots of break out tabs were being hand taped by a half dozen employees...

Working closely with the customer's in-house engineers, CAM's design team created a horizontal ring taping concept using 3-D mechanical design software.


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Model SA5100

Automatically Tapes Closed Coils, Open Coils and Straight Bars with Controlled Tape Tension and Overlap



Model SA5200



Model SA5100



Taping Sequence

  1. 1. Clamps are positioned for the coil
  2. 2. Coil data input to the computer control.
  3. 3. Coil is loaded into the machine. (Operator can use a teach pendant to optimize the program.)
  4. 4. Operator starts the tape on the coil.
  5. 5. Machine automatically tapes the slot and leg portions on one side.
  6. 6. Operator cuts tape, flips coil and tapes the other side.
  7. 7. Operator cuts the tape and removes the coil.

Consistent Overlap Every Time! Tighter, Higher Quality Insulation Wraps!

These machines eliminate the inconsistency and inaccuracy that results when manually taping coils.


Controlled Tape Tension and Overlap

They allow you to precisely control tape tension and tape overlap resulting in consistent wraps and higher insulation quality. Some users of these technologically advanced machines have found that the tape wrap is so perfect that they can add extra tape insulation layers to their coils.


Recipe Driven Computer Controlled Taping

With the ability to store set-up data for many different coil sizes and types, the SA Model Taping machines are simple and quick to set up. You can program leg taping lengths for each layer of insulation and can even change the overlap at different parts of the coil.


Servo Controlled Tape Head Movement

As servo motors move the tape head consistently around the coil’s radii, the tape is applied evenly without causing build-up in the corners.


Coil Flipping Device Option Increases Productivity

This unique optional feature allows the machine operator to quickly and easily flip the coil over to tape the other side without having to remove the coil from the machine. A major time saver, the flipping device will greatly increase your taping productivity.


DMC Firewall is developed by Dean Marshall Consultancy Ltd