A new ultra-low volume crosshead design for multi-layered, thin wall extrusion accuracy is now available from Guill Tool & Engineering Co., Inc. – located in West Warwick, Rhode Island, USA. It's applicable for OEM and medical fluoropolymers and can be utilized by thermoplastics extrusion manufacturers.
The new MicroFlow™ spiral crosshead's engineering advantages includes the following: a patent pending FeatherTouch™ adjustment in the die holder, plus a cartridge-style ball assembly which doesn't require the loosening of retaining screws to make adjustments. It also has the SealRight™ System, which eliminates leakage between the deflectors and is maintained through easy self-adjustments, thereby reducing potential errors during assembly. This MicroFlow spiral model is available in three standard designs – single, double and triple extrusion capabilities.
The MicroFlow spiral is fully adaptable to all extruders and is manufactured in stainless steel (to meet the requirements of medical and other FDA-type applications). A balance flow design offers effortless assembly and disassembly of the crossheads. The MicroFlow spiral core size is 0.375 of an inch and the maximum product size is 0.500 of an inch. The inner layer includes a fixed center and the outer layer's adjustable concentricity function utilizes retaining screws.
The gum space adjustment operates via rotation of the core tube. Quick-change tooling also ensures easy removal of the tip from the back and the die from the front. Mica-band heaters are instrumental to safeguarding and enhancing the material temperature for optimum flow of the extrusion end product.
"This new miniature low-volume spiral offers excellent benefits to a wide audience of potential medical and OEM manufacturers," states William Conley, Guill Tool's sales manager. " But keep in mind, special modifications for a specific type of application, material or end product must be engineered on a case by case basis."
About the company
Guill Tool manufactures tips, dies, and breaker plates using state-of-the-art computerized CNC machining and EDM equipment. Furthermore, engineering services using the latest CAD systems are available for custom-designed extrusion tooling product such as crossheads, tips, clamps, flanges, forming rolls, spiderless inline dies, dies, swing gates, breaker plates, special equipment and sizing dies.
Guill Tool received ISO certification in 1995, the first major extrusion tooling company to meet international standards. Guill Tool is one of the leading established designers and manufacturers of custom extrusion tooling for wire, cable, fiber optics, medical tubes, wood composites, automotive tubes, plastic compounding, custom applications, rubber, profile, industrial pipes, hose and tubes, blow molding, food and packaging.
