Yellow Jacket "Hive" Co-Extruders -
3/8" to 6"

"Yellow Jacket Hive" Co-Extruders bring benefits to processors who are running co-extrusion dies that have closely located melt inlet ports. The pictured "Yellow Jacket Hive" contains three 1 inch 24:1 extruders with 3 HP drives. Both pictures are of the same machine, with front view in one picture and rear view in the other. Each "Hive" contains two or more Yellow Jacket extruders which are designed to work with each other in co-extrusion applications for wire, tubing, sheet, blown and cast film, monofilament, fiber optic sheathing and other applications. They can process all thermoplastics and commonly used co-extrusion adhesives. The systems are unique because they share a common base and control panel, but each extruder position is individually adjustable on the base. The "Hive" is a modular design, so it is easy to configure with as many extruders as the application calls for. The "Yellow Jacket Hive" design is superior to using individual extruders on tripods, since it saves a great deal of footprint space that typical tripod based extruders require. Also, the extruders are more rigid, since they have a floor mounted base as opposed to a tripod base. This increased rigidity translates into a more stable extrudate making it easier to maintain tight tolerances. The "Yellow Jacket Hive" is available with extruders from 3/8 inch for low output applications up to 6 inch units for co-extruded pipe applications. Extruder sizes can be mixed according to process needs. All extruders in the "Yellow Jacket Hive" contain double reduction helical gearboxes with hardened and ground gearing for long service life, as opposed to typical co-extruders which use less efficient worm drives. One piece barrels with long life bi-metallic lined feed sections are also standard for the line, as opposed to typical co-extruders that have soft stainless steel feed sections that wear out quickly. The extruders are available custom built with a wide variety of control, drive and instrumentation options. Wayne Yellow Jacket® Hive Co-extruders have some unique advantages over competitively sized extruders and these are as follows:

• No worm drive gearbox - All Wayne extruders use double reduction helical gearboxes for less gear wear, less gearbox frictional heat and more efficient power transmission to the screw. This results in reduced stalling and more stable output as required for 24 hours a day production applications.
• Higher horsepower drives that assure stable output at high throughput levels.
• The toothed timing belt drive allows for easy speed range changes when compared to directly coupled motor and gearbox designs.

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