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The design of the pressure wheel may vary depending on the different type of wire feeder (e.g., plasma cutter, MIG welder, or TIG welder) and the specific application needs. Specifically, the pressure wheel may include the following parts:
1. Materials: Usually made of alloys that are resistant to wear and high temperatures, such as cast iron or steel.
2. Tooth profile: There may be tooth profile on the surface of the pressure wheel to better press the wire.
3. Positioning system: Some pressure wheels will cooperate with the rest of the wire feeder, such as wire feeding wheels and rollers, to ensure the correct feeding of the wire.
4. Adjustment: The pressing force of the pressure wheel may have an adjustment device so that it can be adjusted according to specific needs.