Drum shot blasting machine

Operation

Operating procedure of drum shot blasting machines

The workpieces are placed in a normal box, which is placed in a feeder or emptied directly. The feeder is raised and arrives in front of the machine door, which is immediately opened. When the correct height is reached, the feeder rotates and discharges the workpieces into the drum. Depending on the sensitivity of the workpieces, this process can be carried out with caution. Control can be carried out via PLC or manually. This prevents damage. At this point, the drum is in the loading position. Before the blasting process, the machine door is closed and the drum rotates into an optimal position in front of the high-performance turbine. At the same time, it rotates around its own axis.

The blasting process starts and lasts while the parts are mixed and blasted from all sides. The inside of the blasting cabin is equipped with highly abrasive-resistant materials. The primary wear plate in the direct blasting area of the high-performance turbines is made of highly resistant and replaceable steel plates. During the blasting process, the door is kept closed and can only be opened when the cabin is free of dust. This takes about 10-15 seconds. During the blasting process, a slight low pressure blows the dust out. The dust is separated in the corresponding filter unit.

After the blasting process, the drum rotates into the discharge position. In this position, the quantity of parts and the intensity of the discharge can also be determined by means of a metered discharge. The treated parts are delivered to a sieve conveyor, which separates the residual abrasive and transports the parts to adjacent boxes.

Capabilities and applications

These are highly modern machines based on a well-proven principle. The new AGTOS drum shot blasting machines impress with numerous technical details. This type of unit is very capable of processing bulk material. Compared to the widely used belt principle, there are many important advantages:

Since the drum is made of a single piece, the flexible and fixed parts of the machine do not have to cross over. This means that the workpieces do not have to be clamped. In addition, the drums can be emptied easily and completely, which avoids double treatment of each workpiece.

Perforated manganese steel is used for wear resistance. The size of the holes depends on the dimensions of the workpieces as well as the grain size and quantity of the effluent abrasives. Sophisticated devices support the mixing of the workpieces.