Skip to Main Content

21-1307 - Thermal Dynamics 21-1307 400A H35 Plasma Shield Cap

Packaging: pack of 5
$95.57/EA $362.60/pack of 5 only $72.52/EASave 24%

Usually ships within 3-5 business days

OVERVIEW

High-Performance 400A Plasma Shield Cap

The Thermal Dynamics 21-1307 Shield Cap is a critical component for heavy-industrial plasma cutting operations. Rated for 400 Amps, this consumable is engineered to withstand the extreme thermal loads associated with high-power automated cutting. It is specifically designated for use with H35 gas mixtures (35% Hydrogen / 65% Argon), which are commonly employed for cutting thick stainless steel and aluminum sections where deep penetration and clean cut faces are required.

As a genuine Thermal Dynamics OEM part, this shield cap guarantees precise compatibility with your torch system. It plays a vital role in directing the shield gas flow around the arc, protecting the inner nozzle from molten spatter, and electrically isolating the front end of the torch to prevent double-arcing. In high-amperage environments, the integrity of the shield cap is paramount to maintaining cut quality and preventing costly torch damage. The 21-1307 is manufactured to tight tolerances, ensuring that gas flow dynamics remain consistent for the lifespan of the part.

Industries relying on large-scale fabrication, such as shipyards, tank manufacturing, and heavy equipment production, will benefit from the reliability of this component. Regular inspection and replacement of the shield cap are recommended to maintain optimal system performance. A damaged or clogged shield cap can lead to poor cut angularity, dross buildup, and reduced life of other consumables.

Key Specifications

  • Amperage: 400A
  • Gas Compatibility: H35 (Argon/Hydrogen)
  • Part Number: 21-1307
  • Application: Heavy Industrial Plasma Cutting
Additional Information
Brand:Thermal Dynamics
Item:Shield Cap
Amperage:400
Packaging Description:pack of 1
Product Type:Plasma Cutting Consumable
Amperage Rating:400A
Gas Compatibility:H35 (Argon/Hydrogen Mix)
Part Number:21-1307

INCLUDED

  • 1 x Thermal Dynamics 21-1307 Shield Cap (400A)

APPLICATIONS

  • Heavy industrial plasma cutting (400A)
  • Stainless steel and aluminum fabrication
  • Automated gantry cutting systems
  • Shipbuilding and heavy manufacturing
  • Applications using H35 (Argon/Hydrogen) gas

FAQ

This shield cap is rated for 400 Amps, making it suitable for high-power industrial plasma systems.

H35 typically refers to a plasma gas mixture of 35% Hydrogen and 65% Argon, used for cutting thick stainless steel or aluminum.

Yes, this is a genuine OEM part manufactured by Thermal Dynamics.

This item is sold as a single unit (Package of 1).

Replace the shield cap if the orifice becomes damaged, out of round, or if there is excessive slag buildup that cannot be cleaned.

This specific cap is designated for 400A H35 applications. Always check your torch manual, as air cutting often requires a different cap design.

It protects the inner consumables from molten spatter and directs the shield gas flow to stabilize the arc.

Given the H35 designation, it is best suited for heavy-duty cutting of non-ferrous metals like stainless steel and aluminum.