Scientific Process & Research Inc. is giving the plastics industry a Left Hook — a new mixing screw for blow molding, that is.
Working with a blow molding company, SPR of Somerset, N.J., replaced the Maddock-style mixers on the its existing barrier screws with a series of L-shaped elements. The new screw elements force the material to separate and mix.
SPR said the Left Hook style immediately boosted the blow molder´s output by 5-7 percent, with operating temperatures 5 degrees cooler. The new design also gave a wider processing window.
SPR said the Left Hook Mixer also works in extrusion and injection molding.
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