Proprietary Engineering Asset
Download the official BLAST APEX Nozzle Reference Guide for your field engineers.
Download Branded PDFNozzle Family Comparison
| Nozzle Type | Pattern | CFM Demand | Wear Life | Primary Use |
|---|---|---|---|---|
| Long Venturi TC | Large/Uniform | High | 300-500 hrs | Shipyard/Hull |
| Double Venturi TC | Extra Wide | Very High | 300-500 hrs | Tank Shells |
| Boron Carbide | Precision | Medium-High | 1000+ hrs | Heavy Aggressive |
| Short Venturi TC | Compact/Hot | Medium | 300+ hrs | Cabinets/Spot |
| Angle TC | Angled Side | Medium | 300+ hrs | Beams/Confined |
The 1.5mm Replacement Rule
Blasting nozzles are technical consumables. Once the internal liner wears just **1.5mm (1/16")** larger than its original bore size, air consumption spikes by 30%. Operating beyond this point leads to massive media waste and compressor overstrain. Audit your bore size daily.
Sector Selection Matrix
- Shipyards: Long Venturi TC (#6/#7)
- Refineries: Double Venturi / B4C
- Restoration: Short Venturi TC (#3/#4)
Frequently Asked Questions
What nozzle pattern type should I use for general blasting?
Long-venturi (Venteduri) nozzles: best for general steel surface preparation. The converging-diverging bore shape accelerates air and abrasive at the exit, producing 15-20% higher impact velocity than straight-bore. Use for: structural steel, tank exterior, bridge components. Short-venturi: best for confined spaces and internal pipe.
How do I calculate nozzle cost per operating hour?
Cost per hour = Nozzle price / Operating hours before replacement. TC nozzle ₹800-1,500, life ~400h in garnet = ₹2-3.75/hr. B4C nozzle ₹3,000-5,000, life ~1,600h = ₹1.9-3.1/hr. B4C is cheaper per hour despite higher purchase price. Add to this the abrasive savings from reduced wear rate.
What is the blast pattern width for different nozzle types?
Nozzle pattern diameter at 0.5m standoff: #4 (6.4mm): 75-100mm pattern. #6 (9.5mm): 125-150mm pattern. #8 (12.7mm): 175-200mm pattern. #10 (15.9mm): 225-250mm pattern. Wider patterns cover more area per pass but reduce impact energy at the edges.