Screws & Dies

30 Years Experience in Meeting the Tough Demands of the Plastics and Food Industries

Key Benefits

As leaders in extrusion design technology, we at SPR know the demands that are placed on feed screws. Typical requirements include high pumping rates, completed melting, and good mixing abilities, requiring complex screw geometries to meet these needs. SPR developed the mathematics of computerized feed screw design and manufacturing and established the first computer controlled milling facility in 1980. Designed to meet the needs of today's industrial applications, we cut screws over 30 feet long and 16 inches in diameter... 

• New
  1. to your prints
  2. to new design: for higher output and improved product quality
• Rebuilt
  1. PTA welding provides excellent bond strength and service life.
  2. Tough materials like Nickel, Cobalt and Tungsten Carbide!
• Die Manufacturing
  1. designing
  2. manufacturing
  3. analysis

Common geometries include:

• Barrier Sections
• Maddock Mixers
• Variable Leads
• CNC allows us to mill any unique shapes that you require

Computerized Milling

With computer control of the cutting process we can cut screws, rolls or any cylindrical shape that you design. Multiple flights are indexed automatically. Herringbone patterns and Pine Cone Mixers are milled with the utmost accuracy. Leads can vary continuously throughout feed and timing screws with smooth transition. 

Pricing

...please contact SPR, Inc.

Contact SPR for more information.

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