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Extruder Screws, Liners and Barrels

Whether it's difficult to machine material or demanding tolerances, CIGNYS gets the job done right. We have over 50 years of experience in machining all types of metal and the equipment to accommodate parts varying in size from small to large. From our highly qualified staff of engineers, toolmakers and technicians we provide close tolerance machining to the highest quality standards and have consistently been able to develop repeat business from customers. Staying on the leading edge of technology both in manufacturing equipment and personnel means CIGNYS will always be a valued provider of close tolerance machining.

Some of our capabilities include:
  • Certified to ISO Standard ANSI / ISO / ASQ Q9001-2000
  • State of the art Q.C. program using PC-DMIS
  • In house CAD/CAM Drafting/Design
  • Electronic drawing transfer/exchange
  • Manufacture of slip on elements double, single lead, conveying, high volume feed screws, paddles, paddle blocks and transition elements. With screw-to-screw clearance accuracy up to +/- .0025” if necessary.
  • Odd shaped CNC ID/OD Helical Turning and 4 Axis milling of
    • Hard Materials
    • Tapered Helical Shapes
    • Variable Leads
    • Variable Diameters
  • Solid one piece fully intermeshing twin-screw shaft design and manufacturing
  • Hard-facing techniques; Stellite, Colmony 56 etc.
  • CNC and Conventional turning with capabilities up to 24-inch diameter
  • CNC Boring Mills and Vertical Machining Centers with work envelopes up to 120" x 72"
  • Blanchard Grinding up to 96"
  • Surface Grinding up to 96"
  • Formed Surface Grinding for clam shell type twin barrels
  • Vertical Grinding up to 48" diameter by 42" tall
  • Broaching capabilities
  • Fabrication Techniques

Fully experienced with:

Fully Experienced working with:
  • Hip and Hip Cladding
  • Bimetallic
  • Ion Nitriding
  • Heat Treating
  • CPM-9V, 10V, 15V, 420V
  • D-2, O-1
  • 304L, 316L, 440C, 17-4PH
  • Nickel, Chrome, Carbides
  • Duplex Stainless-Nitronic
  • Super Alloys-Sagittite™

Precision machining


CNC machining