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208702 - Miller 208702 Windtunnel and Magnetics Assembly for Maxstar STH

Packaging: 1 PER EA
$1,852.64/EA $1,137.68/1 PER EA only $1,137.68/EASave 39%

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OVERVIEW

Restore Your Maxstar STH with the Miller 208702 Windtunnel Assembly

The Miller 208702 Windtunnel, Magnetics w/Cmpnts is an essential replacement assembly for the Maxstar STH welding machine. As a dedicated welding professional, you know that the internal condition of your power source is just as important as the external connections. This component is central to the thermal management and structural organization of the welder's power section.

Importance of Wind Tunnel Technology

Miller's Maxstar series utilizes an internal airflow design known as Wind Tunnel Technology. This innovative approach separates the cooling air from sensitive electronic boards. The 208702 assembly acts as the conduit and housing for this system, specifically managing the magnetics section. By channeling air only where it is needed, it significantly improves reliability by reducing the accumulation of conductive dust and grime on circuit boards. A damaged or cracked wind tunnel can disrupt this airflow, leading to hotspots, reduced duty cycles, or potential component failure.

OEM Quality and Fitment

This product is a genuine Miller Electric spare part. It is manufactured to the exact tolerances and material specifications of the original component installed in your Maxstar STH at the factory. The assembly includes the plastic wind tunnel structure and the associated magnetic components (transformers/inductors) as designated by the part number. Installing OEM parts ensures:

  • Perfect Physical Fit: No struggling with misaligned bolt holes or mounting points.
  • Electrical Compatibility: The magnetic components meet the precise inductance and resistance values required by the inverter.
  • Thermal Performance: Materials are rated to withstand the heat generated during heavy welding operations.

Keep your Maxstar STH running at peak performance. Whether you are performing a scheduled overhaul or an emergency repair, the Miller 208702 provides the quality assurance you expect from the industry leader in arc welding technology. Always disconnect power and consult the service manual before attempting internal repairs.

Additional Information
Brand:Miller
Packaging Description:1 Per Ea
Compatible Model:Maxstar STH
Part Type:Windtunnel Assembly, Magnetics Housing
Product Type:Replacement Part

INCLUDED

  • 1 x Miller 208702 Windtunnel, Magnetics Assembly with Components

APPLICATIONS

  • Replacement of damaged internal wind tunnel housing in Maxstar STH welders.
  • Repair of faulty magnetic assemblies within the power source.
  • Restoration of proper cooling airflow paths in Miller inverters.
  • General maintenance and overhaul of Miller Maxstar STH equipment.

FAQ

This part is specifically designed for the Miller Maxstar STH series welding machines.

It refers to the internal assembly that includes the wind tunnel plastic housing and the magnetic power components (like transformers or inductors) that are cooled by the airflow within that tunnel.

Yes, the Miller 208702 is a genuine OEM replacement part manufactured by Miller Electric.

The Wind Tunnel directs cooling air over power components while protecting sensitive circuit boards from dirt and dust, extending the life of the welder.

Installation requires opening the welder case and handling internal electrical components. It is recommended that a qualified service technician perform this repair to ensure safety and proper function.

Miller replacement parts typically carry a warranty against manufacturing defects. Please check the specific warranty terms for replacement parts at the time of purchase.

You should check the parts breakdown manual for your specific Maxstar STH serial number to confirm that part number 208702 is the correct revision for your unit.

Symptoms can include the machine failing to output power, overheating warnings, or unusual noises coming from the unit during operation.