CREDIT: PLATINUM TOOLING TECHNOLOGIES
Platinum Tooling Technologies Inc., will be selling products from Dunner, a manufacturer of guide bushings for Swiss Type CNC Lathes, in North America.
Producing guide bushings since 1935, Dunner has the know-how to manufacture guide bushings in different bore profiles, guide lengths, and insert material. In addition, silicone sealants can be applied to limit chip penetration. All guide bushings are available in standard (15 microns or less), ultra-precision (5 microns or less), and ultimate ultra-precision (2 microns or less).
The company manufacturers bronze, ceramic, and titane (Meehanite) guide bushings for customer machining needs. All guide bushings are ready for machine use with finished internal surfaces and geometries designed to offer the best result with nominal size material.
Manufactured from a special cast iron, titane/Meehanite offers an excellent compromise between the coefficient of friction and wear. Suitable for stainless steel, titanium and other materials with a tendency to “load up,” it minimizes part marking and is used extensively in medical part production.
Using high-tech ceramic, Ceramic/NewSurf offers one of the lowest friction coefficients on the market. Specifically designed for titanium, stainless steel, and other difficult materials, these bushings are often used for medical implants, in particular when the tightest production tolerances are required.
Designed with steel body and bronze insert for durability, the bronze guide bushing is the most cost-effective material to prevent marking. Best suited for non-medical parts production, the guide bushing is suitable for all non-copper materials and clamping workpiece material up to h8 tolerance.
The Dunner DunnAir Adaptive Guide Bushing System is designed to replace the original guide bushing supplied by the machine builder. The easy-to-use system adds flexibility and consistency to the machining process. With this system, the need for ground stock is eliminated. DunnAir is self-adjusting and consistent and offers four different positions for flexibility and control. In addition, the bushing has a clamping range of 0.5mm (0.020”) to accommodate material variance, as well as eliminate downtime. Lastly, DunnAir is CNC controlled, so customers can choose the position based on the application.