Multi Filar Coil Winding Machines

Multi Filar Overview

The multi filar coil winder machine uses a 2-camera vision system to wind fine filaments around a spinning mandrel and produce multi filar micro coils with up to 8 filars. After the coils are produced they are used for medical and electronic products. Intravascular catheters and electrodes are the primary products but the ability to handle different tensions on each filar enable the machine to produce everything from motor coils to heating elements. Anytime a small coil is needed, this machine can produce it.

Not only do these machines coil significantly faster, multifilar medical coils also provide unique properties. Coils with multi filars have different tension, torsion, and stiffness properties. The ability to weave together different material filaments also allows for interesting electrical properties. This makes multifilar coils very popular to use for guiding catheters. The versatility of this machine makes the possibilities endless!

closeup graphic of the mulit - filar coil winder touchscreen The precise control of all process variables is increasingly important, as the materials get smaller. Programmable wind tensions of less than 1 gram and wind angles of less than 1 degree require the use of control systems that were not previously associated with coil winding. The unique use of machine vision to measure wind angle without touching the filament and state-of-the-art control systems makes this the most precise machine ever. The adjustable tailstock allows use of variable length mandrels.

013 mandrel coil being held over a hand to demonstrate size of the coil

This coil was formed by winding 12 individual .0045″ diameter wires over a .35″ diameter spinning mandrel.

By improving the accuracy of all controlled parameters, this machine can increase productivity through reduced rejects and faster wind speeds. The programming is flexible to allow new products to be made with the same machine. With the availability of better technology, product designers are finding they can build better products. Sheet – Double Head 4 Filar Coil Winder
Data Sheet – 8 Filar Coil Winder

(viewable with Acrobat Reader available here)

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Send us your specification and we will recommend the best solution for your needs. Note that being a premier machine design firm we can also customize your machine to your dream needs. Material Type, Production Rate, Process Configuration, All you need to do is ask!

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