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0559210047 - ESAB 200A/250A Mild Steel Plasma Shield Cap

Packaging: pack of 5
$35.13/EA $24.11/pack of 1 only $24.11/EASave 31%

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SKU: ESB0559210047 Categories: ,

OVERVIEW

Optimize Your Heavy-Duty Plasma Cutting

The ESAB Shield Cap, 200/250Amp, MS (Part Number: 0559210047) is a critical component for industrial plasma cutting systems operating at high amperages. Designed specifically for Mild Steel (MS) applications, this shield cap plays a pivotal role in maintaining the precision and efficiency of your plasma torch. When cutting at 200 to 250 Amps, the thermal dynamics and gas flow requirements are intense; using a genuine ESAB shield cap ensures that your equipment operates exactly as engineered, delivering clean cuts and protecting expensive internal components.

The Role of the Shield Cap

In high-performance plasma torches, the shield cap serves multiple essential functions. Primarily, it directs the flow of the secondary shield gas around the plasma arc. This gas curtain constricts the arc, increasing its energy density for deeper, faster cuts, while simultaneously cooling the nozzle. For mild steel applications, this flow is calibrated to interact perfectly with the molten metal, assisting in the ejection of dross and ensuring a smooth edge finish. Additionally, the shield cap acts as the first line of defense for the nozzle and electrode, shielding them from molten metal spatter (blowback) that occurs during piercing and cutting.

Why Choose Genuine ESAB Parts?

ESAB is a world leader in welding and cutting technology, and their consumables are manufactured to exacting tolerances. The 0559210047 Shield Cap is machined from high-grade, heat-resistant alloys capable of withstanding the extreme temperatures generated during 250A cutting operations. Unlike aftermarket alternatives, which may have slight dimensional variances, this OEM part guarantees a perfect fit. A perfect fit is crucial for maintaining electrical isolation and concentricity between the electrode, nozzle, and shield—factors that directly influence cut angularity and consumable life.

Application Specificity

The "MS" designation indicates that this cap is optimized for Mild Steel processing. Different materials (like stainless steel or aluminum) often require different shield gas mixtures and flow geometries to prevent oxidation or achieve the desired metallurgical finish. By using this specific shield cap for your mild steel projects, you ensure that the shield gas velocity and volume are perfectly balanced for the material, reducing post-cut grinding and rework.

Maintenance and Replacement

Regular inspection of your shield cap is vital. Over time, the orifice can become clogged with spatter or eroded by the heat, disrupting gas flow and degrading cut quality. Replacing your shield cap at the first sign of wear helps prevent catastrophic failure of the torch head and ensures your production line keeps moving efficiently. Trust Josef Gas to supply the authentic ESAB components you need to keep your operations running smoothly.

Additional Information
packaging-description:pack of 1
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Process Type:Plasma Cutting
Material Application:Mild Steel (MS)
Country of Origin:United States
Brand:Esab
Item:Shield Cap
Amps:200 A, 250 A

INCLUDED

  • 1 x ESAB Shield Cap, 200/250Amp, MS

APPLICATIONS

  • Mechanized Plasma Cutting Systems
  • Heavy Industrial Fabrication
  • Mild Steel Plate Processing
  • Structural Steel Cutting
  • Shipbuilding and Railcar Manufacturing
  • High-Amperage Piercing and Cutting

FAQ

The shield cap directs the flow of secondary shield gas around the plasma arc to constrict it for better cutting precision and cools the nozzle. It also protects the inner consumables from molten spatter.

This specific shield cap is designated 'MS', meaning it is optimized for cutting Mild Steel. It is engineered to work best with the gas flows and thermal conditions associated with carbon steel processing.

While it may physically fit the torch, it is not recommended. 'MS' caps are tuned for mild steel. Stainless steel and aluminum usually require different shield cap geometries to achieve optimal cut quality and prevent contamination.

This shield cap is rated for high-amperage cutting, specifically between 200 Amps and 250 Amps.

You should replace the shield cap if the orifice becomes out of round, if there is heavy spatter buildup that cannot be removed, or if the face of the cap is pitted or eroded. A damaged cap can cause poor cut quality and damage other torch parts.

Yes, this is a genuine ESAB OEM part, ensuring perfect compatibility and performance with your ESAB plasma cutting system.

Generally, high-amperage caps like this (200/250A) are designed for mechanized cutting with a standoff distance control. They are not typically used for contact or drag cutting, which is more common at lower amperages.

Using a worn shield cap can disrupt the gas flow, leading to an unstable arc, excessive dross (slag) on the cut, and potential double-arcing that can ruin the nozzle and electrode.