Standard Feed Screws (other profiles available on request)
Powder Feed Dynamics, Inc.
OEM feed screws are available for all MARK XV  powder feeders and Tafa 5500 powder feeders.

All feed screws are precision ground to tight tolerances and made from wear resistant stainless steel to insure                
maximum life and uniformity.  

We offer 1/4", 3/8" & 1/2" diameter  screw flights in various pitches that provide a wide range of feed rates.  All drive shaft
ends are 1/4" diameter so they are interchangeable.  Only the Screw Tube and Carburetor Block need be swapped
when converting to a different flight diameter.  

The larger the flight diameter and courser the pitch, the higher the resulting feed rate.

For more detailed information, see the links below.
Feed Screws -
Part Number
Dimension
Price
114A-450
1/4" diameter X 4 pitch X 12.187" long
$ 240.50
114A-650
1/4" diameter X 6 pitch X 12.187" long
$ 216.50
114A-850
1/4" diameter X 8 pitch X 12.187" long
$ 216.50
114A-1050
1/4" diameter X 10 pitch X 12.187" long
$ 216.50
114A-1250
1/4" diameter X 12 pitch X 12.187" long
$ 216.50
114A-3.5-375
3/8" diameter X 3.5 pitch X 12.187" long
$ 375.00
114A-350
1/2" diameter X 3 pitch X 12.187" long
$ 375.00