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Netflix live tv3/17/2023 ![]() ![]() This supply line often creates the water collected in the Air Filter/Water Trap on the machine. Next the warm tank passes warm air to the supply hose, and the hose starts to warm. Less and less moisture is captured in the tank as the tank warms. While some of the hot air’s moisture is captured in the tank, some is not. Compressed air is created, and the hot air warms the tank above room temperature. This is how you get water in the tank: the tank acts as the first air cooler. Possibly the compressor tank size is small making this condition happen, but what is most likely happening is the compressor tank starts at room temperature then begins to warm as hot compressed air enters the tank. That time varies based on your hose size, tank size, gun size, and compressor pump speed. If this sounds like your setup, most likely hot air traveling to the blasting cabinet is creating moisture inside the cabinet and preventing abrasive flow after about 30 minutes of blasting. This problem commonly arises when the air compressor is close to the blasting cabinet and just large enough, or maybe a bit too small, to operate the machine without allowing the compressor to start, stop and cool during the blasting operation. Unfortunately, hot air isn’t something you can easily diagnose on sight. Air filters do not remove humidity in the air. This moisture is then collected in an air filter water trap on the machine itself. Keep in mind Air Filter/Water Traps only removes moisture already in a liquid state in the compressed air line. If you are collecting water in the air filter water trap it is indicating the last condition, the next section is for you! This problem is easy to control, just visually check and remove the water when visible to eliminate the problem. If you don’t drain the air filter/water tap when it is full the water can easily pass into the cabinet. ![]() This requires you to switch to new abrasives far more frequently and becomes very costly. ProTip: Using any abrasive in excess of its maximum impact velocity will drop its recycle rate to one or two times. Just like changing the oil in your car, the abrasive in your blast cabinet has a finite lifespan. Drain the abrasive, throw it away, and replace it with a new, larger abrasive. When it’s worn out, and no longer part of the recycle process, it requires an abrasive change out. As abrasive gets smaller, its angle of repose gets greater and greater. Different abrasive types have different recycle rates, and typically using a larger abrasive offers more recycles. It should be visually apparent if this solution eliminates your problem.Īs you use any abrasive it wears out, gets physically smaller, and takes longer to clean. If you find you are constantly back pressuring the nozzle, holding something over the nozzle to reverse the abrasive flow, you most likely have too much trash in the abrasive.Īs you use your blasting cabinet, abrasive lands in low airflow places and is no longer part of the recycling process. If the abrasive valve is starving after a short time using the machine, try adding more abrasive to your system. ![]() Both common household items will separate out any items that may restrict abrasive flow. ![]() Most machines have a scalper screen that captures these items, but if your machine doesn’t have a scalper screen, drain and sift the abrasive to remove nested trash you can manually replace abrasive media after sifting it through a window screen or pasta strainer. Typically it’s things like decals, gaskets, rust chunks, and carbon pieces that cause issues. Just imagine turning over an hourglass that has marbles in it along with sand, you can see how quickly things would get stopped up. Often particles removed from the part being processed get into the abrasive and sieve down to the abrasive flow valve, blocking abrasive flow to the gun. Read below for our media blasting troubleshooting for our sand blasting tips.ĥ Common Causes of Abrasive Flow Problems and How to Fix them Updated January 2022: Do you often wonder why your blast cabinet has abrasive flow problems after roughly 30 minutes of operation? It’s a common issue that we field questions about, and we’ve compiled a list of the five most common culprits. ![]()
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