MALLARD® SCREWS

Zeiger's MALLARD® screws for injection molding and extrusion
are known for their superior quality and expert craftsmanship.
Recognized in the plastics industry as an example of innovation
in motion, MALLARD® screws can be manufactured from any
material in any size and design.

Zeiger Industries also offers its own proprietary high performance
screw designs for extreme processing conditions -
The MALLARD® ZPM™ screw.

When you work with Zeiger for your screw requirements, you can count on:

• Superior quality
• Fast delivery
• Competitive prices

                      Tool Steel Screws    MALLARD® tool steel screws are manufactured to any
                     design and material specification.  We offer both new screws as well as rebuilds.

                   Zeiger Industries is the only screw manufacturer who designed and built our own grinding
                  machine.  Why is this important?  By designing our own machine to our own specifications,
                 we were able to configure our entire screw manufacturing process around the grinder's
                capabilities.  In doing so, we have eliminated many of the steps required to manufacture
               hardened tool steel screws through the conventional known processes.  Zeiger Industries is
              pleased to provide our customers with guidelines for selecting the proper grade of steel for
             hardened tool steel screws, as manufactured by us.  Depending upon availability, Zeiger Industries
                reserves the right to substitute equivalent materials at its discretion.

        ZPM™ High Performance Screws    For extreme processing conditions, we offer
         the MALLARD® ZPM™ high performance screw designs.  ZPM™ (Zeiger Posi-Melt) screws are
        designed to handle the toughest conditions with ease, and are recommended for even shear
       sensitive applications, where better melt quality and better color mixing are a concern.  ZPM™
       screws can be manufactured from any materials of construction, including:

• 4140 with Colmonoy Welded Flight OD and Chrome Plating
• Nitrided 135M
• 17-4 Stainless Steel with Colmonoy Welded Flight OD
• Inconel
• Hastelloy
• CPM-9V
• Cru-Wear
• S30V
• S90V (CPM 420V)
• D-2
• Carbide Coated

MALLARD® ZPM™ screws are available for a small upcharge to a standard general purpose screw, and are guaranteed to provide pre-agreed process improvements or the screw will be reworked or replaced at no cost to the customer.

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