Sandblasting nozzles for abrasive blast cleaning
Blast Cleaning Nozzles | Sandblasting nozzles | Tungsten Carbide |vapor blasting nozzles | Grit Blasting | Dry blasting
Why use a venturi nozzle? One of the functions a venturi nozzle performs is to help with building pressure via a built in convergent angle that narrows to a straight bore and then diverges out towards the nozzle exit. This geometry causes abrasive particles to accelerate from their initial entrance speed and exit the nozzle with enough additional velocity to perform surface preparation work. Nozzles with a Venturi design are the nozzles of choice for most abrasive blast cleaning operators. (In certain application a straight bore nozzle is still used especially when a more focused blast pattern and slower abrasive speeds are needed).
Everblast's contractor style carbide abrasive blast cleaning nozzles, grit blasting nozzles / sandblasting nozzle tips are supplied with the 2 contractor style industry standard threads (1) 1-1/4" threads and (2) coarse 2" /metric threads. Most long venturi carbide sand-blasting nozzles are available with either 1" (25mm) or 1-1/4" (32mm) lead in entry. We also offer a wide range of carbide inserts made from tungsten carbide, boron carbide or ceramic.These inserts are generally used in suction guns operated in sandblasting cabinets and workshops where close up blast cleaning is needed.
We offer a choice of different jackets to protect carbide liners these range from our 100% armored jackets and threads that provide a very high level of protection against ricochet wear and impact to lighter weight plastic jackets that provide good impact protection for the liner. Our premium range of armor jacketed blast cleaning nozzles provide additional protection for carbide liners against ricochet and work site impact.
Everblast makes a range of High performance XLBC blast cleaning nozzles these are great when large surface areas need blast cleaning and can be used for dry and wet blasting. These light weight nozzles are long venturi style with a boron carbide liner. Nozzles available with either 1-1/4" fine threads or 2" coarse threads.
Tungsten carbide nozzles are the most commonly used nozzles in the sandblasting / abrasive blast cleaning industry. They are tough and are best suited for use in harsh work site conditions. Tungsten carbide nozzles are economical and work well with most abrasives. If you want light weight carbide nozzles for use with the same media we offer Silicon carbide blast cleaning nozzles. Cost is higher than a comparable tungsten carbide nozzle but Silicon carbide offers a longer wear life.
Wet blasting and soda blast cleaning has become popular as these methods offers a way of controlling dust - please see our range of Wet blasting nozzles. However, like many methods of blast cleaning there are pros and cons. It is important that each blast cleaning company researches to find out which method of blast cleaning (wet or dry) offers optimal results, given the type of surface preparation work being undertaken, abrasives used & coating that may subsequently be applied.
Another area of sandblasting where carbide is used, is in sandblasting cabinets, blast cabinets and sand blaster guns. These carbide inserts come in many different sizes and shapes so sandblast machine operators have to check carefully when purchasing replacement inserts and purchasing used sand blasting machines.
Guide on Estimated Nozzle Service Life in hours.
All figures are indicative and given for nozzle comparison purposes only. Actual nozzle service life will depend on operational variables, such as blast pressure, media dimensions and media particle profile. All figures are approximate.
|Nozzle Liner Material||Steel/Grit Shot (hours)||Expendable Abrasives (Hours)||Aluminum Oxide (Hours)|
|Silicon Carbide/Silicon Nitride||600-1000||400-600||50-100|
|Boron Carbide||1500-2500||750-1500||200 - 1000|