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The 200A Air/N₂ Shield Across Two Hosts: Hypertherm's official HyPro2000 upgrade torch for HT2000 consumables chart places 420045 at the 200A position for both Air and N₂ processes . The native MAXPRO200 machine torch matrix does the same — 420045 is the 200A shield for Air (mild steel / stainless / aluminum) and N₂ (stainless / aluminum) . Linde's distribution listing confirms it as "Plasma Shield, Mech, MAXPRO200, 200 A, Air — For use with MAXPRO200/HyPro2000 200A" .
Air/Nitrogen — Not Oxygen: 420045 is engineered for 200A air and nitrogen plasma processes. For 200A oxygen (mild steel), the correct shield is 220832 — fitting a 420045 on an O₂ stack, or a 220832 on an Air/N₂ stack, degrades cut quality and shortens consumable life. This distinction matters.
Nozzle Protection = Throughput: The shield's primary job is to protect and cool the other consumables, especially the nozzle, from molten splatter; in some cases it also contributes to the swirling action of the plasma gas . A cracked or warped shield lets gas escape unevenly and is a direct cause of double-arcing and degraded cut edges.
420045
HALANSM®
HLN-420045
HALANSM® 420045 Shield — 200A Air/Nitrogen for HyPro2000 Upgrade Torch for HT2000 / MAXPRO200
The HALANSM® 420045 is the designated 200A shield for air and nitrogen plasma cutting on Hypertherm's HyPro2000 upgrade torch for HT2000 and the native MAXPRO200 machine torch . As the outermost barrier protecting the nozzle and electrode, the shield directly governs arc stability, cut-edge quality, and consumable life at the 200A Air/N₂ class. Constructed from copper alloy , the 420045 is optimized for one thing: protecting and cooling the other consumables — especially the nozzle — from molten splatter, while in some cases contributing to the swirling action of the plasma gas .
Why 420045 is the right shield for 200A Air/N₂ work
For the two host platforms in scope, Hypertherm's official consumables matrices place the 420045 at the 200A Air/N₂ position:
HyPro2000 upgrade torch for HT2000 — 200A Air (mild steel / stainless / aluminum): 420045 shield · 220936 outer cap · 420044 nozzle · 220488 swirl ring · 220937 electrode · 220521 water tube · 220935 inner cap (without tab)
HyPro2000 upgrade torch for HT2000 — 200A N₂ (stainless / aluminum): 420045 shield · 220936 outer cap · 420044 nozzle · 220529 swirl ring · 020415 electrode · 220521 water tube · 220935 inner cap (without tab)
Native MAXPRO200 machine torch — 200A Air: same stack as the HT2000 Air row above
Native MAXPRO200 machine torch — 200A N₂: 420045 shield · 220936 outer cap · 420044 nozzle · 220529 swirl ring · 020415 electrode · 220521 water tube · 220935 inner cap (without tab)
Linde's distribution listing confirms the cross-platform identity: "Plasma Shield, Mech, MAXPRO200, 200 A, Air — For use with MAXPRO200/HyPro2000 200A. The main function of the shield is to protect and cool the other consumables, especially the nozzle from molten splatter. In some cases, the shield also contributes to the swirling action of the plasma gas." . One shield, two host torches, two gas processes — air and nitrogen.
Key Features
Air/Nitrogen-Specific Duty: The 420045 is engineered for the 200A air and nitrogen plasma processes . Air and N₂ have different thermal and flow characteristics than oxygen — which is why Hypertherm specifies 420045 for Air/N₂ and 220832 for O₂ at 200A . Fitting a 420045 on an O₂ stack, or a 220832 on an Air/N₂ stack, degrades cut quality and shortens consumable life.
Nozzle Protection & Cooling: The shield's primary function is to protect and cool the other consumables — especially the nozzle — from molten splatter; in some configurations it also contributes to the swirling action of the plasma gas . At 200A, a compromised shield directly causes double-arcing and accelerated nozzle/electrode failure.
Robust Outer Thermal Barrier: The copper alloy body provides a robust physical barrier against intense thermal loads and molten metal spatter . This heavy-duty protection minimizes catastrophic damage to the inner nozzle and electrode, reducing costly production downtime.
Seamless OEM Fit: Manufactured to exact dimensional tolerances, the HALANSM® 420045 installs effortlessly and maintains perfect concentricity with the retaining cap and nozzle, ensuring the plasma arc remains stable and focused .
200A Air Consumable Stack (Mild Steel / Stainless / Aluminum — HyPro2000 for HT2000 & MAXPRO200 machine torch)
Position | Part | 200A Air |
|---|---|---|
Shield | 420045 | 420045 |
Nozzle | 420044 (Air) | 420044 |
Swirl Ring | 220488 (Air, 130–200A) | 220488 |
Electrode | 220937 (200A) | 220937 |
Inner Cap | 220935 (without tab) | 220935 |
Outer Cap | 220936 (with IHS tab) | 220936 |
Water Tube | 220521 | 220521 |
200A N₂ Consumable Stack (Stainless / Aluminum — HyPro2000 for HT2000 & MAXPRO200 machine torch)
Position | Part | 200A N₂ |
|---|---|---|
Shield | 420045 | 420045 |
Nozzle | 420044 (Air/N₂) | 420044 |
Swirl Ring | 220529 (N₂) | 220529 |
Electrode | 020415 (N₂) | 020415 |
Inner Cap | 220935 (without tab) | 220935 |
Outer Cap | 220936 (with IHS tab) | 220936 |
Water Tube | 220521 | 220521 |
NOTE: 420045 = 200A shield for Air and Nitrogen only. Compatible hosts: HyPro2000 upgrade torch for HT2000 and MAXPRO200 machine torch — both at 200A Air (mild steel / stainless / aluminum) and 200A N₂ (stainless / aluminum) . This shield is not for oxygen; for 200A O₂ use shield 220832 instead . The 420045 pairs with nozzle 420044, swirl ring 220488 (Air) or 220529 (N₂), and electrode 220937 (Air) or 020415 (N₂) . For MAXPRO200 hand torch at 200A Air, the shield is 420058 — 420045 is for machine torch configurations. Always inspect the shield for dents, cracks, or a non-round center hole when cut quality degrades — Hypertherm's maintenance guide specifies replacing the shield under these conditions . HALANSM® is an independent aftermarket manufacturer; this part is a compatible replacement for Hypertherm® systems.
Real Shot: Images above show the actual HALANSM torch ceramic head, Euro connector pins, cable coil, consumable-installed view and length comparison you will receive.
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