CJWinter is the industry leader in thread rolling solutions for multi-spindle, Swiss, CNC, Rotary Transfer applications. When you need durability, flexibility, and reliability, we cover the full spectrum of your thread rolling needs. Our thread rolling solutions include:
CJWinter manufactures a wide range of attachment thread rolls. Our quality and performance is unsurpassed, and standard size thread rolls ship within 24 to 48 hours.
CJWinter Burnishing Rolls are designed to your print. Burnishing Rolls are made to extremely high standards from the finest materials available.
CJWinter is the world leader in machine dies. CJWinter typically can meet your exacting thread roll specifications a full 2 to 3 weeks faster than our leading competition.
MAThread® is a patented threaded fastener used mainly for the auto industry for improving product assembly. The cutting-edge technology of MAThread eliminates the common issue of cross-threading.
CJWinter Knurls are designed to your print. Knurls are made to extremely high standards from the finest materials available. The care and precision used in their manufacture assures the user of a premium quality tool.
If you manufacture Sucker Rods, Pony Rods, Sinker Bars or Couplings, in either AISI Grade or API Grade Alloy, CJWinter is the Best Choice for your thread rolling needs. Available in 5/8", 3/4", 7/8", 1" & 1 1/8" body diameters.
API Cold Rolls
Drill pipes undergo repeated, severe tensile stresses during a drilling operation. These cyclic stresses are particularly focused on the thread roots and can cause premature pipe failure.
for Major Manufacturers
CJWinter manufactures thread rolls to fit attachments from all major manufacturers, including Reed, Salvo, Detroit, and Fette.
How to Determine Correct Working Face
Figures 1 through 4 are intended to help you calculate the working face (F) for various thread rolling applications, determine the angle of chamfer required and position the thread roll properly.
The working face (or F dimension) of the thread roll must always be greater than the length of thread that needs to be generated on the part. The general rule is to allow the thread roll to overhang each end of the blank by at least 1 1⁄4 threads (root to root or crest to crest = 1 thread).
Figure 1 and 3 F = (2.250 x P) + L
Figure 2 and 4 F = (2.500 x P) + L
A = 1.500 x P
B = 1.250 x P H
Whether you're ordering from our extensive in-stock inventory, or requesting custom-made materials, the thread rolls you get from CJWinter arrive quickly, perform at your exact specs, and last a long, long time.
How to Order Thread Rolls
When placing an order or requesting a quote, please have the following information available:
- Make and model of thread rolling attachment
- Style of thread roll (i.e. D-1, DR-1, C-1, etc.)
- Size and pitch of thread to be rolled, including dimensional tolerances if other than standard
- Length of thread on part
- Material to be rolled
- Print of part to be rolled
NOTE: Special rolls may require a sample part or more detailed specifications. Some rolls require a special calculation to figure the work face on the roll.