Components for abrasive blasting

Contracor Blastlock Coupling system - Maximum safety for professional

The new Contracor Blastlock coupling system sets standards in efficiency, durability, and workplace safety. Specifically designed for the demanding environments of the corrosion protection and construction industries, Blastlock offers a connection you can rely on.

Why Contracor Blastlock?

In the world of sandblasting, couplings are the most critical connection points. Failure under high pressure can not only cause costly downtime but also poses a significant safety risk. The Contracor Blastlock system was designed to eliminate precisely these weaknesses. By using the highest quality materials and precision manufacturing, we guarantee a pressure-loss-free connection for maximum blasting performance.

Technical description of the Blastlock system

The Contracor Blastlock system is the logical next step in the development of modern sandblasting technology. It combines the highest safety standards with ergonomics that noticeably simplify everyday work.

The highlights in detail:

• Precise claw coupling : The Contracor Blastlock system is based on a highly robust claw coupling. The standardized claw spacing guarantees seamless compatibility within your equipment.
• State-of-the-art material technology with a "memory effect" : The Blastlock coupling system is made of extremely durable, glass-fiber-reinforced nylon. This material choice results in significantly lower weight with maximum stability. A crucial advantage over metal: The material has a memory effect . While metal couplings permanently deform upon impact, nylon springs back to its original shape. This guarantees that the coupling always remains a perfect fit, even after heavy use on construction sites.
• Intelligent sealing system & " flush fit" : High-quality NBR rubber seals inside each Blastlock coupling ensure a perfect seal. The system follows the "flush fit" principle : hose and seal form a flush unit without any disruptive edges. This prevents dangerous turbulence of the blasting media and protects the coupling from premature internal wear (erosion).
• Maximum pressure resistance & "clamping effect" : Designed for an operating pressure of up to 12 bar, the Blastlock system offers ample reserves for high-performance industrial applications. The system utilizes physical principles: Through the clamping effect, the internal air pressure presses the hose firmly against the inner wall of the coupling. The higher the pressure, the more securely the hose is seated in the Blastlock connection.

Instructions: How to connect your blast hoses to Blastlock

Correct installation is crucial for the lifespan of your Contracor Blastlock coupling.

1. 1. Preparation : Cut the blasting hose at a perfectly right angle and cleanly. Ideally, use a special hose cutter to avoid fraying.
2. 2. Installation : Push the hose fully into the 4. Coupling : Place two Blastlock couplings against each other, press them together and turn them until the claws lock securely into place. coupling. Thanks to the "flush fit" design, the hose end must fit snugly against the inner flange of the coupling to prevent turbulence .
3. 3. Securing : Screw the coupling in place from the outside through the hose sheath using the provided retaining screws. Tighten the screws securely - the pressure exerted during operation will later ensure a final, permanent seal.
4. 4. Coupling : Place two Blastlock couplings against each other, press them together and turn them until the claws lock securely into place.

Vital safety: The hose safety device (Safety Cables)

Safety is Contracor's top priority. The use of hose safety devices (whip locks) is mandatory whenever Blastlock couplings are used.

• Prevention of accidents : Should a connection come loose under pressure, the safety cables prevent the dangerous "whipping" of the hose.
• Relief : The cables support the weight of the hose, especially during vertical applications, thus relieving stress on the Blastlock coupling's screw connections. This prevents the mechanical load from damaging the hose sheath at the screw points.
• Additional safety precaution : Always use the supplied locking pins for the Blastlock claws to prevent accidental unscrewing during work.

What you should pay attention to when sandblasting

• Regular inspection : Check the Blastlock seals daily for wear or dirt. Worn seals lead to pressure drops and unnecessary energy consumption.
• Perfect fit : Use only genuine Contracor accessories to ensure full compatibility and safety of the Blastlock system.
• Cleanliness : When coupling, ensure that no sand gets into the sealing surfaces to avoid impairing the "flush fit" precision.

With Contracor Blastlock you are choosing professional equipment that combines maximum performance, state-of-the-art material physics and the highest level of safety.