SiAION Big Gun Long Venturi Nozzle – 5/16″ Bore, 1-1/4″ Entry, 50 mm Thread, Aluminum Jacket

Part Number: 888-5000-405PB
Category: Sandblasting & Abrasive Nozzles
Type: SiAION Big Gun Long Venturi Nozzle – 5/16″ Bore, 1-1/4″ Entry, 50 mm Thread, Aluminum Jacket

The 888-5000-405PB SiAION Big Gun Long Venturi Nozzle is a high-performance, lightweight blasting nozzle designed for professional abrasive applications where productivity, durability, and operator comfort are critical. Featuring a 5/16″ bore and a long venturi profile, this nozzle accelerates abrasive media to higher exit velocities than straight-bore designs, delivering faster surface coverage and improved blasting efficiency. Constructed from advanced SiAION material and protected by an aluminum jacket, it provides service life and wear resistance comparable to tungsten carbide—at roughly half the weight. This makes it an excellent choice for operators working long shifts who benefit from reduced fatigue without sacrificing performance. Designed with a 50 mm thread and 1-1/4″ entry, it fits Big Gun-style holders used in industrial and production blasting environments.

Product Specifications

Model: 888-5000-405PB
Material: SiAION (with Aluminum Jacket)
Bore Size: 5/16″
Entry Size: 1-1/4″
Thread: 50 mm
Profile: Long Venturi
Style: Big Gun Nozzle
Weight: 1.90 lbs
Condition: New

Features & Benefits

• Long venturi design increases abrasive velocity and blasting efficiency

• 5/16″ bore for higher media flow and faster surface coverage

• SiAION construction offers durability comparable to tungsten carbide at about half the weight

• Lightweight design reduces operator fatigue during extended blasting sessions

• Aluminum jacket provides strength without excessive mass

• Optimized for Big Gun-style blast equipment

Applications

• Industrial abrasive blasting

• Surface preparation and coating removal

• Production and continuous-duty blasting

• Shipyards, fabrication shops, and maintenance facilities

• High-volume blasting operations requiring reduced operator fatigue

Important Notes

• Do not use aluminum-thread nozzles with aluminum nozzle holders—they may become stuck or inseparable

• SiAION Big Gun nozzles are not recommended for use with steel grit

• For steel grit applications, use the Tungsten Carbide 1-1/4″ thread version: PN 888-5001-305PB

• Verify bore size (5/16″), entry (1-1/4″), and thread type (50 mm) before ordering

• Service life varies based on abrasive type, air pressure, and duty cycle