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Here is your most recent issue of the High Current News e-newsletter. It's packed full of information to keep you updated with the latest MIG & TIG welding news, product information and new updates from D/F MACHINE SPECIALTIES.

D/F is a world leader in the design, development, and manufacture of MIG & TIG welding products, consumables & accessories.

NEW D/F Product Catalog

D/F CatalogD/F has released a brand new color product catalog! Featuring the most popular D/F MIG & TIG welding equipment, accessories and consumables, the catalog will cater to your informational and ordering needs.

You can request your own free copy of the catalog in two ways:

1. Email D/F at with your name, and your company's name and address of where you would like the catalog to be sent.

2. Fill out the reservation form located here.

DownloadClick to download the catalog as a digital PDF.

Tandem Welding

Tandem vs. Single Wire WeldingThe Tandem wire MIG welding process greatly increases the application range of the traditional single-wire process. Depending upon the application requirements, a single-wire or tandem-wire configuration might be ideal. The tandem-wire process differs from the single-wire process in the fact that it uses two independent and electrically isolated contact tips guiding two separate wires feeding from two separate power sources; almost like having two torches in one torch body.

When A Single-Wire Setup Should Be Used
A single-wire setup is ideal for smaller applications where the weld bead is relatively small, and where the weld cycle times are shorter, such as lap & but joints, and T- & corner joints. Single-wire welding will produce a standard-sized weld which is most commonly seen in many welding applications which require smaller to medium base materials.

When A Tandem-Wire Setup Should Be Used
A Tandem wire setup is ideal when the application requires heavy-duty, long and rigorous welding cycles such as welding construction & machinery equipment, ASME tanks, and pipe & tubular components. The tandem process will effectively double the speed and greatly increase the deposition rate without compromising the weld quality. If a relatively large weld puddle is required, a tandem setup is the way to go.

D/F recommends the Automatic and Robotic W/C Tandem Torch

D/F Water-Cooled Tandem Wire Torch

D/F Tandem TorchThe D/F Machine Specialties specially designed high amperage water-cooled "MIG" Tandem welding torch is a critical component of the Tandem welding system, engineered with specific spacing and alignment of two contact tips to achieve proper arc control. The torches are usually rated in terms of combined current flowing through both wires due to the demands of high amperage, high duty cycle production runs. The torch is rated at 1700 amps due to the fact that each isolated, water-cooled-to-the-tip inner body is capable of carrying 850 amps at 100% duty cycle.

To provide maximum resistance to the abuses of day to day service, the tandem torch is of heavy duty construction with all metal parts well insulated from current carrying members. The D/F Tandem Torch, like all D/F torches, is easily reparable, thus reducing downtime and increasing productivity.

  • High Weld Metal Deposition Rate
  • Wide Range of Torch Sizes and Tip Spacing
  • Lowers Production Costs & Increases Productivity

Learn more about the D/F Water-Cooled MIG Tandem Torch

Frequently Asked Questions

D/F has now added a Frequently Asked Questions page to the website! This page will be continually updated with information about Torch Maintenance, Welding Practice & Setup, Warranty & Refurbish, Troubleshooting, and more in hopes of fulfilling the needs of anyone who might have a common question about D/F's equipment or welding in general. Please visit the FAQ page.

Do You Have Videos or Photos of D/F Torches in Action?
Submit Them to WIN!

D/F's new Video and Photo Galleries showcase D/F equipment in action over the years, and we are constantly adding to the galleries. We want to see how our equipment helps brings out the best of your creativity and skill, or simply how your equipment is setup and used.

D/F Gallery

Submit your videos and photos to:

For project submissions, things to include:

  • Video or Photos of your project
  • What did you make?
  • How did you make it?
  • Which D/F products did you use?

Submissions will be put in a drawing for a chance to Win A Gift Card to your local Best Buy Consumer Electronics Store.

Check out the D/F Photo Gallery here.
Check out the D/F Video Gallery here.


Words from the Editor

Greetings from D/F!
Thank you for reading our High Current News e-newsletter. Please share this issue with a friend and send us your comments.

Best Regards,
Dave Judd, Editor
D/F Machine Specialties, Inc.

D/F Machine Specialties


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In This Issue

• NEW D/F Product Catalog

• Tandem Welding

• Water-Cooled Tandem Torch

• Frequently Asked Questions

• Got Projects? Submit to WIN!

• New Products

• Nozzle Thread Chaser Taps

New Products - Automatic & Robotic Machine Torches

W/C Curved MIG Torches
The versatile D/F curved quick-change Water-Cooled Automatic and Robotic 500 amp Torch Models NCC/LRN and HTC/LRN can be used for a wide range of automatic applications. With the various angles (22° through 90°) and lengths available, a selection may be made to suit individual requirements.

Read More

Semi-Automatic MIG

Automatic MIG

Robotic MIG

Automatic TIG

Robotic TIG



Nozzle Thread Chaser Taps

Nozzle Thread Chaser Tap
The New D/F Nozzle Thread Chaser Taps are designed to chase and tap nozzle threads to clean and repair them for better conductivity and contact.

• No need to remove the
   contact tip

• Chasing will clear debris,
   metal filings and spatter

• Re-tapping will straighten and
   clean damaged threads

• Tap sizes available for all D/F
   Nozzle Assemblies

Read More

Your Downloads
Did you know you can download all of D/F's Catalogs, Instruction Manuals and CAD Files at D/F's Online Download Center?
Visit the Download Center online ad D/F's web site for more information.

Contact D/F

Product Info: 1-507-625-6200
Fax: 1-507-625-6203
Online: Contact D/F

D/F Machine Specialties, Inc.
1750 Howard Drive
North Mankato, MN 56003




Contact D/F


1750 Howard Drive
North Mankato, MN 56003
(507) 625-6200

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