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OEM Blast Nozzles and Nozzle Holders – Designed to the Specifications of Your Clemco Blast Machine

OEM Blast Nozzles and Nozzle Holders – Designed to the Specifications of Your Clemco Blast Machine

By on Oct 10th 2022

Blast Nozzles and Nozzle Holders

OEM Blast Nozzles and Nozzle Holders – Designed to the Specifications of Your Clemco Blast Machine

Various types of Nozzles

Avoid Unplanned Downtime, Reduce Air and Media Costs, and Keep Productivity High

Quality matters. The quality of your work, of your blast machines, and of their replacement parts and spares. Clemco manufactures OEM blast nozzles and nozzle holders as replacement parts and spares, designed to the specifications of your Clemco blast machine. These accessories help prevent unplanned downtime, hits to your productivity, and rising media costs caused by increased media consumption, all of which can be caused by worn components. Protect the safety of your operators, protect your reputation for quality work, by using Clemco OEM blast nozzles and nozzle holders.

  • Long and Short Venturi Nozzles
  • Straight-Barrel Nozzles
  • Side-Angle Nozzles
  • Nozzle Holders

Long and Short Nozzles

Venturi Nozzles: Long and Short – For High-Production Blasting

A venturi nozzle operates like a jet engine. Air is compressed through the nozzle’s cone-shaped entrance and then exits through a small, tapered orifice, where the air expands more gradually than it was compressed. At 100 psi, this process propels abrasive through a nozzle’s orifice at speeds up to 660 ft per second (200 meters)— almost two-thirds the speed of sound.

By comparison, on average abrasive exits a straight-barrel nozzle at 318 ft per second (97 meters). In addition, venturi nozzles create larger blast patterns and more uniform abrasive distributions than straight-barrel nozzles.

Long Venturi Nozzles – For High-Production Blasting with Wide Blast Patterns

Because of how they accelerate media, long venturi nozzles allow operators to stand farther back from the blast surface, which increases the square footage covered by their blast patterns. For this reason, they can produce up to 40% higher production rates and use less abrasive than straight-barrel nozzles.

Short Venturi Nozzles – For High-Production Blasting in Small or Confined Spaces

Because short venturi nozzles are shorter than long venturi nozzles, they produce a smaller blast pattern. For this reason, they are well-suited for applications when the nozzle is close to the blast surface such as in small or confined spaces.


Variety of Nozzles in a group

Clemco’s Portfolio of Long and Short Venturi Nozzles – Materials and Thread Size Options

Clemco offers long and short venturi nozzles manufactured with different materials and in various thread sizes to fit your applications’ requirements.


Straight Barrel

Straight-Barrel Nozzles – When Blasting Close to a Blast Surface or for Detailed Applications

Straight-barrel nozzles produce a tight blast pattern and have lower media exit velocities. They are best-suited for blasting in tight or confined areas, when close to a blast surface, or when blasting objects that have detailed or intricate surfaces. Because of these characteristics, straight-barrel nozzles frequently are installed on blast cabinets and small blast machines. Clemco’s offers straight-barrel nozzles with different nozzle liner materiel to meet your applications’ requirements.

  • Nozzle Liner Material
    • Tungsten Carbide – Provides great wear resistance. Tungsten carbide nozzles are excellent for use with steel grit, steel shot, or any iron abrasive because the high density of steel abrasives can cause chipping in other carbide nozzles. They also are an excellent choice when mineral or coal slag abrasive is used in applications with rough handling. They can last up to 300 to 400 hours when used with expendable abrasives.
    • Boron Carbide – The longest-wearing carbide nozzles. Boron carbide nozzles are extremely tolerant of sharp abrasives, such as aluminum oxide and silicon carbide, and can last up to 750 to 1,500 hours when used with expendable abrasives.
  • Thread Size
    • 3/4” – For less frequent nozzle changeovers, 3/4” nozzles provide a secure seal for nozzle holders.
  • Nozzle Jacket Material
    • Metal – Provides a higher-level of protection against impact from rough blasting applications.

Side view of Nozzles

Side-Angle Nozzles – For Awkward or Extremely Tight Blast Angles

Designed for applications with difficult or awkward access to the blast surface such as a hard-to-reach crevice in structural steel or inside pipes. Clemco offers side-angle nozzles with the following characteristics.

  • Nozzle Liner Material
    • Tungsten Carbide – Provides great wear resistance. Tungsten carbide nozzles are excellent for use with steel grit, steel shot, or any iron abrasive because the high density of steel abrasives can cause chipping in other carbide nozzles. They also are an excellent choice when mineral or coal slag abrasive is used in applications with rough handling. They can last up to 300 to 400 hours when used with expendable abrasives.
    • Thread Size
      • 3/4” – For less frequent nozzle changeovers, 3/4” nozzles provide a secure seal for nozzle holders.
    • Nozzle Jacket Material
      • Metal – Provides a higher-level of protection against impact from rough blasting applications.
    • Number of Outlets
      • One – For coverage in hard-to-reach structural components and in crevices.
      • Three – For uniform coverage and blast consistency in pipes and in hard-to-reach tubing.

Nozzle Holders

Nozzle Holders

Nozzle holders provide secure seals between nozzles and blast hose to ensure no media leaks and safe connections. Clemco offers nozzle holders manufactured with different materials and in various thread sizes to fit your applications’ requirements.

  • Nozzle Holder Material
  • Fine Thread Size
    • 3/4”– Fine threads for smaller blast machines. Ensure secure nozzle connections. For applications that require less frequent nozzle changes.
    • 1-1/4” – Fine threads for larger blast machines. Ensure secure nozzle connections. For applications that require less frequent nozzle changes.
    • 50 mm – Coarse For applications that require more frequent nozzle changes, coarse threads allow for easier and quicker changeover.
    • Flanged – For quick nozzle changes when multiple nozzles are needed.

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