| Guill Tool & Engineering Co Inc., USA, has recently launched a series of mini-crossheads, MiniMicro�. Featuring an outer diameter of 57mm and a length of 57mm, this series has specially been designed for manufacturers of medical tubing, wire and cable, electronics, as well as speciality OEM applications. Providing an exacting, convenient method to create micro-sized tubing for all types of compounds and expensive resin and polymer applications, the MiniMicro series is available in six standard designs: single layer, single layer with a stripe, co-extrusion, co-extrusion with a stripe, triple extrusion and triple extrusion with a stripe. The unique MiniMicro die enables low volume extrusion and saves on material costs. Guill Tool claims that it is ideal for those high-priced resins often used in high-technology, OEM and medical applications.
The new MiniMicro spiral crosshead�s engineering advantages include a patent-pending FeatherTouch� adjustment in the die holder that does not require the loosening of retaining screws to make adjustments. It also has the Seal Right System, which eliminates leakage between the deflectors and is maintained through easy self-adjustments, thereby reducing potential errors during assembly. The MiniMicro spiral is fully adaptable to extruders sizing 1� and smaller. In addition, it is manufactured in stainless steel or Inconel� to meet the requirements of medical and other FDA-relevant applications. A balance flow design offers effortless assembly and disassembly of the crossheads. The tooling offers a maximum die size of 0.5� and is available in fixed centre or adjustable centre. Mica-band heaters are instrumental in safeguarding and enhancing the material temperature for optimum flow of the extrusion end product.
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