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140-1408 - Tuffaloy Truncated Spot Welding Electrode #4 RW Taper 2-Inch Length

Packaging: 1 of each
$22.90/ea $16.36/1 of each only $16.36/eaSave 29%

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SKU: 140-1408 Categories: ,

OVERVIEW

High-Performance Resistance Welding Electrode

The Tuffaloy 140-1408 is a precision-engineered resistance welding electrode designed to meet the rigorous demands of industrial spot welding applications. Manufactured by Tuffaloy, a leader in resistance welding products, this tip features a truncated nose profile. The truncated design is specifically engineered to handle higher electrode forces compared to pointed tips, providing a larger, more stable contact area that minimizes tip deformation and mushrooming over extended use. This structural integrity is crucial for maintaining consistent weld nugget size and quality in high-volume production environments.

Dimensionally, the electrode has an Overall Length (OL) of 2 inches and a diameter of 0.463 inches, which corresponds to the standard #4 RW (Resistance Welder Manufacturers' Association) taper. This ensures compatibility with a wide range of standard electrode holders and spot welding machines. The precise machining of the taper guarantees a secure, leak-free fit that maximizes coolant flow and electrical transfer efficiency. The "Spotaloy" material composition offers an excellent balance of hardness and electrical conductivity, ensuring that the tip remains cool and conductive even during rapid cycling.

A standout feature of this Tuffaloy electrode is its surface finish. The bright, shiny appearance is not merely aesthetic; it is the result of a specialized passivation process. This chemical treatment removes free iron and other contaminants from the surface, significantly inhibiting oxidation. By eliminating the oxide layer that typically forms on stored copper products, Tuffaloy ensures that the 140-1408 provides low contact resistance immediately upon installation, reducing the need for pre-cleaning or dressing before the first weld.

Key Technical Specifications:

  • Nose Configuration: Truncated (Type A)
  • Taper: #4 RW (.463" Major Dia)
  • Length: 2.00 Inches
  • Finish: Passivated/Anti-Oxidation
Additional Information
Packaging Description:1 of each
Item:n/a, Resistance Welding Electrode, Spot Welding Tip
Length (in):2
Diameter:0.463"
Material:Copper Alloy, Spotaloy
Finish:Passivated
----- new values below ----
Taper Size:#4 RW
Material:Spotaloy, Copper Alloy
Finish:Passivated
Brand:Tuffaloy
Item:Spot Welding Tip, Resistance Welding Electrode
Length (in):2
Diameter:0.463"
Nose Type:Truncated

INCLUDED

  • 1 x Tuffaloy Truncated Spot Welding Tip (2" OL, .463 Dia)

APPLICATIONS

  • Automotive body panel spot welding
  • Sheet metal fabrication and assembly
  • Wire mesh welding
  • Appliance manufacturing
  • General resistance welding of mild steel and coated steels

FAQ

The 140-1408 features a truncated nose profile, which is flat at the tip. This design provides greater strength and resistance to deformation under high electrode force compared to pointed tips.

This electrode has a 0.463-inch diameter, which corresponds to a standard #4 RW (Resistance Welder Manufacturers' Association) taper.

The overall length (OL) of the Tuffaloy 140-1408 is 2 inches.

The shiny appearance is due to a passivation process that removes surface contaminants and prevents oxidation, ensuring good electrical contact right out of the package.

Yes, like most copper resistance welding electrodes, the face can be dressed with a tip dresser or file to maintain the proper diameter and flatness as it wears.

Spotaloy is a trade name for Tuffaloy's copper alloys used in resistance welding. It typically refers to high-conductivity copper alloys (like Class 1 or Class 2) designed specifically for spot welding electrodes.

The tip itself is solid copper alloy but is designed to be seated in a water-cooled holder. The internal taper allows for coolant to reach deep into the holder, though the tip itself is a standard male cap/electrode.

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