Components for abrasive blasting

Maximum safety thanks to the Blastlock locking system

Safety during sandblasting is not a matter of chance, but the result of precise engineering. The Contracor Blastlock system goes beyond a simple connection:

• Mechanical locking mechanism : Every Blastlock coupling comes standard with holes for locking pins. This prevents unintentional disconnection due to vibrations or hose twisting during operation.
• Whipcheck compatibility : The design of the Blastlock coupling is optimized for mounting Contracor Safety products. Cables . These steel cables are essential to prevent the dangerous whipping of hoses in the event of a sudden connection failure, thus avoiding serious injuries.
• Safety check : The bright yellow color of the Blastlock series not only serves the design, but also increases the visibility of the connection points on confusing construction sites.

The physics of tightness: The Blastlock "pressure effect"

Unlike conventional jaw couplings, Contracor Blastlock uses the operating pressure to your advantage:

• Pressure-assisted sealing : Once the system is pressurized, the geometry of the Blastlock coupling ensures that the hose is pressed firmly against the spiral retaining ribs of the coupling from the inside.
• Secure fit : This "pressure effect" guarantees that the connection becomes tighter and more compact as the working pressure increases (up to 12 bar).
• Prevention of hose slippage : The special internal profile of the Blastlock coupling effectively prevents the hose from moving out of the holder under load.

Optimal flow dynamics: The "flush fit" principle

Turbulence and pressure drops are the enemies of efficient blasting. The Contracor Blastlock System eliminates these weaknesses:

• Flush fit : Thanks to precise manufacturing, the blast hose and the Blastlock NBR seal fit together perfectly flush .
• No material build-up : There are no protruding edges or dead spaces where blasting media could accumulate. This prevents the dreaded erosion of the coupling from the inside out.
• Maximum energy at the nozzle outlet : An unobstructed airflow means less energy loss. With Blastlock , you ensure that the full compressor power arrives where it's needed: at the nozzle.

Material advantage: Why nylon is the standard for professionals

The Contracor Blastlock system made of glass fiber reinforced nylon offers decisive advantages over heavy-duty malleable iron couplings:

• Memory effect : Nylon is elastic enough to absorb impacts without permanently deforming. A dropped Blastlock coupling retains its shape and can still be perfectly coupled.
• Low weight : Reducing the weight at the hose connections conserves the energy of the blaster and increases mobility on scaffolding or in confined spaces.
• Corrosion resistance : While metal couplings can corrode due to moisture in the compressed air, the Blastlock nylon system remains completely weather-resistant and durable.

Contracor safety Cables : Essential protection for people and machines

High-pressure sandblasting exerts enormous physical forces on every connection. Hose securing is not just a recommendation - it's the backbone of your safety concept. The Contracor Blastlock system only works effectively with the use of our certified safety features . Cable to a complete protection unit.

Why the Contracor Safety Cable is vital:

• Prevention of "whiplash" : Should a coupling unintentionally detach under pressure, the safety cable prevents the uncontrolled whipping of the hose end . A whipping hose can cause serious injuries and destroy equipment in seconds.
• Mechanical relief : During vertical blasting operations (e.g., on bridges or facades), the Safety Cable supports part of the hose's weight. This reduces the tensile load on the Blastlock coupling screws, preventing the hose sheath from tearing.
• Secondary safeguard : The cable acts as a "backup". While the Blastlock locking rail prevents the claws from twisting, the cable ensures the integrity of the entire connection chain.

Technical Specifications & Handling

Our safety cables are designed for tough construction site use and offer maximum reliability with the simplest installation:

• High-strength galvanized steel : Made from corrosion-resistant, flexible steel mesh for maximum tensile strength while maintaining flexibility.
• Spring-loaded loops : The ends of the cable can be pulled over the hoses in seconds without tools using spring-loaded loops.
• Universal fit : Available in various lengths and thicknesses, suitable for all common hose diameters in the Contracor range.