Sandblasting nozzles are critical components that direct high-velocity streams of abrasive media used to clean, etch, or prepare surfaces. These nozzles work by combining compressed air with abrasive materials to generate the desired blasting effect.
They vary in three key aspects:
- Material: Common materials include ceramic (cost-effective but less durable), tungsten carbide (durable and versatile), and boron carbide (extremely hard and wear-resistant—ideal for heavy-duty or prolonged use).
- Bore Shape: Nozzles come in straight bore (for precise, narrow patterns) or Venturi bore designs (which widen the exit flow for a broader, more efficient blast pattern).
- Size: Nozzle size, typically measured in 1/16-inch increments, directly affects air consumption, abrasive flow, and overall blasting performance.
Choosing the Right Nozzle:
Selection depends on several factors:
- The specific application (e.g., rust removal vs. surface profiling)
- The type and hardness of abrasive media
- Desired blast pattern, coverage, and force
- Available compressor capacity (CFM rating)
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