SiAION Big Gun Long Venturi Nozzle – 7/16" Bore, 1-1/4" Entry, 50mm Thread, Aluminum Jacket
Part Number: 888-5000-407PB
Weight: 1.95 lbs
Category: Blast Nozzles (Long Venturi, SiAION)
The SiAION Big Gun Long Venturi Nozzle (7/16" bore, 1-1/4" entry, 50mm thread) is a lightweight, high-efficiency blasting nozzle engineered for demanding, continuous-use applications. Featuring a SiAION liner and an aluminum jacket, this nozzle combines long wear life, excellent abrasion resistance, and reduced operator fatigue—making it ideal for professional blasting contractors.
SiAION delivers performance comparable to tungsten carbide while weighing about 50% less, offering a perfect balance of durability and comfort.
Key Features
Performance & Construction
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Long Venturi design for high-velocity blasting and increased productivity
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7/16" bore to support higher media flow rates
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SiAION liner – durable, lightweight, high-performance material
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Aluminum outer jacket for strength and reduced weight
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1-1/4" entry size
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50mm fine-thread connection
Safety & Usage Notes
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⚠️ Do NOT use with steel grit
Use the tungsten carbide equivalent: PN 888-5001-307PB -
⚠️ Avoid pairing aluminum-thread nozzles with aluminum nozzle holders
(Risk of material bonding and seizing together)
OEM Compatibility
| OEM Manufacturer | Part # |
|---|---|
| Graco | 17J855 |
Why Choose a SiAION Nozzle?
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Comparable wear life to tungsten carbide
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Weighs ~50% less — excellent for long shifts
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Reduces operator fatigue and improves handling
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Ideal for production blasting, large surfaces, and continuous operation