Electrodes and Pins

METRIC NUT WELDING ELECTRODES AND COATED PINS 

Production Engineering now stocks the coated dolphin nose style pin used in many resistance welding systems. Our DLC (Dimond like coating) pins will outlast your current tool steel pins guaranteed. Choose from the components below or ask us about producing a custom pin for your application. From our standard style pins to our Arctic, that produces higher quality welds and longer life, you can select the product that best meets your needs. 

Electrode Heads are made from RWMA class 2 material that are an optimal cost consumable. Class 3 and 10W GH electrodes are available for longer life. With a concave seat the pin locates in the center of assembly when air is applied to the system. This gives you a repeatable location for automated nut feeders to introduce the nut to the environment. 

Resistance welding Pins have a nonconductive surface on a steel matrix that gives longer life in a repetitive motion environment. With the threaded head securing the pin in place it makes it easy to replace the pin to meet your requirements. We can even help design pins for special applications. 

Please Note : Locating pins for projection welding nuts are produced from several different materials with several different coatings. Ceramic, ACT, Tool Steel, DLC, and KCF are available with many sizes in stock. Let one of our knowledgeable customer service representatives help you choose which coating is best for your application.

 

Copper Resistance Welding Heads & Copper-Tungsten Faced Heats  

Tuffaloy Weld Pin Diagram 1 - Production Engineering

Part NumberHole Dia.A Pin SizeB ThreadC Dia.Copper-Tungsten Faced Heads
www.resistanceweldsupplies.com
175-8004 .197 4mm M18 1.0 175-8004-10W
175-8005 .236 5mm M18 1.0 175-8005-10W
175-8006 .276 6mm M18 1.0 175-8006-10W
175-8007 .315 7mm M18  1.0 175-8007-10W
175-8008 .354 8mm M18  1.0 175-8008-10W
175-8009 .394 9mm M18 1.0 175-8009-10W
175-8010 .432 10mm M22 1.125" 175-8010-10W
175-8011 .472 11mm M22 1.125" 175-8011-10W
175-8012 .512 12mm M22 1.125" 175-8012-10W
175-8013 .551 13mm M22 1.125" 175-8013-10W
175-8014 .558 14mm M26 1.125" 175-8014-10W
 

Standard Dolphin nosed Pins 

Tuffaloy Weld Pin Diagram 2 - Production Engineering

Part NumberA NutB OvalC BasePilot Dia.
www.resistanceweldsupplies.com
195-3004 4mm 1.12" 12mm .185
195-3005 5mm 1.17" 12mm .224
195-3006 6mm 1.23" 12mm .264
195-3007 7mm 1.24" 12mm .303
195-3008 8mm 1.25" 12mm .340
195-3009 9mm 1.19" 12mm .380
195-3010 10mm 1.37" 16mm .422
195-3011 11mm 1.38" 16mm .458
195-3012 12mm 1.40" 16mm .500
195-3013 13mm 1.37" 16mm .539
195-3014 14mm 1.50" .815 .580
195-3015 15mm 1.52" .815 .620
 

Tuffaloy Electrode Pin Bodies 

Tuffaloy Weld Pin Diagram 3 - Production Engineering

DescriptionPart NumberA OvalB Dia.C ThreadD Taper/Thread
www.resistanceweldsupplies.com
TDH-25A 301-0004 1.77" 1" 18mm #4
TDH-25C 301-0005 1.97" 1" 18mm #5
TDH-25C-THD 301-0006 2.13" 1" 18mm 5/8-11
TDH-30A 301-0015 1.97" 1.125" 22mm #5
TDH-35A 301-0020 1.97" 1.125" 26mm #5
 

Tuffaloy Upper Electrode Body 

Tuffaloy Weld Pin Diagram 4 - Production Engineering

DescriptionPart NumberA IDB OALC Dia.D Taper
www.resistanceweldsupplies.com
TNFD 16-M5-16-3 186-0101 5mm 2.36” 625” 5RW
TNFD 20-M6-16-3 186-0101 6mm 2.36” .75” 5RW
TNFD 20-M8-16-3 186-0103 7.5mm 2.36” .75” 5RW
TNFD 20-M10-16-3 186-0104 10mm 2.36” .75” 5RW
TNFD 20-M12-16-3 186-0105 12mm 2.36” .75” 5RW