Tegra Medical offers a wide range of centerless grinding services delivered by skilled operators with the know-how to meet the highest standards for medical devices.

Precision grinding is at the core of our manufacturing capabilities. For well over 20 years customers have relied on our grinding shops (formerly New England Precision Grinding and American Medical Instruments) for the highest quality grinding services.

Needle Grinding

Tegra Medical offers a variety of grinding methodologies to produce, cost-effectively, the most demanding geometries with tight tolerances. Our latest CNC grinding technology features robotic material handling and automated inspection resulting in a very reproducible product and finish.

For small diameter wire and tube grinding, we have the experience and capabilities to take on projects others won’t. Our medical device grinding expertise includes needle pointing, thru-feed grinding, in-feed grinding and electrochemical grinding.

Needle Pointing

Accu-Point, Tegra Medical's proprietary manufacturing technology, is used to produce multi-facets on the ends of small diameter wire and tubing. Developed to keep pace with the growing complexity of medical device designs, Accu-Point has the capability to create thousands of shapes and facets in multiple presentations. The Accu-Point manufacturing platform features CNC controlled precision, capable of ten-millionths resolution and a proprietary strip-based loading system to minimize set-up times.

Needle Grinding

Thru-Feed Grinding

Example of grinding

Thru-feed grinding can be used effectively for a variety of parts applications. Components as small as .01-inch diameter can be ground using the thru-feed process if the diameter being ground is the largest diameter on the part and it comprises the majority of the overall length. If multiple diameters need to be ground on the same part, thru-feed grinding can be combined with other Tegra Medical grinding operations to do the job efficiently.

In-Feed Grinding

In-feed grinding is ideal for headed, flanged or multiple-diameter parts that require two or more diameters to be ground. Also, single, multi-step, angles, tapers and radii benefit from the in-feed grinding process. In addition, tight concentricity can be maintained between multiple diameters and diameters can be ground eccentric from one another in certain situations.

Electrochemical Grinding

Electrochemical grinding is a process that uses low voltage, high current electrical energy to achieve a burr free slot, point, or notch with radiused edges -- an ideal process for slotting and notching. Abrasive grinding can hold tight tolerances on notch and slots.

Diagnostic Probe - Example of Grinding

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