SCREWS EXECUTION:   Screw running surfaces with molybdenum coating/plasma sprayed, for optimum endurance. Screw flanks and screw core completely nitrided and in the area of the venting and metering zones hard chrome plated with a thickness of 0,02 mm to 0,04 mm, screw shaft nitride hardened with material no.1.8519 hardened with 900 – 1000 N/mm².   BARREL EXECUTION:   Made from nitride steel (material 1.8550 – BÖHLER V820), forged, heat treated to 850-1000 N/mm² and nitride hardened  to optimum depth, without venting block.		HMG Extrusions - Screws & Barrels Replacement
		Single and Twin Screw Technology that Meets Your Demands !
		HMG Extrusions is serving the world's plastic industry with state of the art extrusion equipment and processing know-how.   HMG Extrusions brings you the processing technology that fits your type. no matter what brand extruder you run, no matter what product you extrude.   We utilize the technology and know-how of the successful HMG Extrusions extruders, and offer you to take advantage of the latest development in extrusion equipment.   In our R&D department we continuously develop new screw designs in order to meet and excel our customers processing needs.   HMG Extrusions hands you the opportunity to utilize these advancements in single- and twin screw designs for your production.   Sizes for screws and barrels range from as small as 35 mm up to more than 160 mm.
		Increase Your Production Rates with HMG Extrusions Screws and Barrels.   As time goes by, tooling, resins, formulations and simply processing requirements change.   In comparison, our screws feature up to 50% more srew surface area and a lower compression ratio than typical extruder screws. This enable a more gentle plastification and better wear resistance. All of our screws are nitrided and coated on the outer diameter with a low COF molybdenum coating, by means of PLASMA SPRAYING. Further more our screws are partially chromium plated, to increase the service life.    Make extended use of your equipment by upgrading your machine with HMG Extrusions screw technology.   Our screws are made from either highly wear resistant nitriding steel or a special stainless for chemically aggressive formulations.   Furthermore we apply our manufacturing experience to every single piece of equipment we supply.       Our barrels meet the tightest tolerance specs and help maintaining your production rates at max !   For our twin screw barrels we only use high quality steele and machine it on state of the art manufacturing equipment. The barrels are nitrided, using a proven two step heat treating process, to provide an extra thick, wear resistant layer.   Please contact us for a quote and further information about our products. If you would like to speak to one of our representatives concerning processing requirements you face, don't hesitate to contact us !