Fine Wire Micro-Coiling

Since Kinefac has developed its Micro-Coiler for coiling round wires as small as 25 microns into coils 200 microns in diameter, it has installed many of these new deflection coiling machines in the United States, Europe and Asia. The company is producing catheter guide coils, coiled wire medical components with complicated configuration and electronic contact springs in stainless steel, platinum tungsten and similar difficult materials. This required a totally new machine concept, a coiling machine where all stationary tools are mounted in Kinefac micro-align holders and all adjustable tools had only one mounting characteristic and one mounted could be precisely positioned through the use of micrometer controls.

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Since Kinefac has developed its Micro-Coiler for coiling round wires as small as 25 microns into coils 200 microns in diameter, it has installed many of these new deflection coiling machines in the United States, Europe and Asia. The company is producing catheter guide coils, coiled wire medical components with complicated configuration and electronic contact springs in stainless steel, platinum tungsten and similar difficult materials.

This required a totally new machine concept, a coiling machine where all stationary tools are mounted in Kinefac micro-align holders and all adjustable tools had only one mounting characteristic and one mounted could be precisely positioned through the use of micrometer controls. This included both radial, lateral and vertical location of the coiling point, lateral control of the cutoff tool, axial positioning of the feed rolls and lateral positioning of the arbor. With the tooling easily and repeatably located in the correct initial position, and with the addition of direct acting servodrives capable of micron-level actuation of diameter pitch, feed and cutoff functions, it is now practical to make precision coils and springs with variable diameter pitch, stiffness and length and cut them off. As a result, the micro-coiler can produce completed coils without manual operations on round wire or flat wire with a thickness down to 25 microns and an index as low as 3.0.