Feed Screws for Injection and Extrusion Molding
At American Screw & Barrel, we specialize in designing, manufacturing, and rebuilding feed screws for the plastic, rubber, food, and metal molding industries. We can manufacture and design new screws (12mm to 12″ diameter), and rebuild screws (16mm to 18″ diameter) with a maximum length of 315″ for single-piece construction.
We offer a full range of base materials for your specific processing applications depending on wear resistance, corrosion resistance, and material strength. Our current list of feed screw capacities and material offerings include:
Feed Screw Design & Rebuild Capacity
New
• 12mm to 12” diameter with a maximum length of 315” for one-piece construction
• Multi-piece feed screws are available for lengths exceeding 315”
Rebuild
• 16mm to 18” diameter with a maximum length of 315”
Feed Screw Base Materials
Alloy Steel
• 4140HT
• 4340HT
• Nitralloy 135 (mod)
Stainless
• Series 300 and 400 Stainless
• 17-4 Precipitation Hardening Stainless
Tool Steel
• D-2
• A-2
• H-13
• Lescowear
Powder Metallurgical Tool Steel
• 9V
• 10V
• 20CV
• S90V
• Z-Wear Elmax
• Vanadis
Nickel Alloys
• Inconel 718
• Inconel 625
• Hastelloy C-276
Screw Flight Hardfacing Materials
Nickel Base
• Colmonoy #56
• Colmonoy #57
• Colmonoy #88
• Colmonoy #83
• Coltung #1
Cobalt Base
• Stellite #1
• Stellite #6
• Stellite #12
Feed Screw Coatings
• Chrome Plating
• Tech 17 Ceramic Chrome Seal
• Thin Dense Chrome
• Electroless Nickel Plating
• Ion and Gas Nitriding
• Total Carbide Encapsulation
• Flight Land Carbide Encapsulation
• New Abrasion Eliminator – Metallurgically Fused Carbide Root Protection