Rotary drum shot blasters are designed for batch cleaning of small-to-medium workpieces varying in dimensions and shapes.
They can be used for shot blasting of castings, forgings, heat-treated, and other metallic parts.
Although they are usually used in batch cycles with an operator manually loading/unloading the drum, they can also be integrated in a partially automatic production with the addition of a hydraulic loader and unloading conveyor in front of the machine.
The bottom of the rotary drum has a triangle shape in the center to allow for a three-dimensional movement, rolling of the pieces, which enables an optimal exposure of all surfaces to the blast stream.
The drum is made from one piece, so there are no pinch points. This means the smallest of parts like screws and bolts can be processed without getting stuck or caught between slats like in a G Series steel flight tumble blaster.
The drum is made of manganese steel for long service life and can be coated with polyurethane sheet for even greater wear resistance. It is 34-inch diameter and has a 5 cubic feet maximum loading capacity. It can process parts ranging from 25/64″ to 4 ¾” diameter and has a load capacity of up to 660 lb.
Parts are loaded in a rotating drum manually by the user or with a forklift truck.
As the parts rotate and tumble inside the drum, they are exposed to the abrasive propelled by the ir sm@rt multi-option blast wheels ranging from 5.5 to 30 kW, providing efficient shot blasting and quick results.
The production process can be partially automated with the addition of a hydraulic loader and an unloading conveyor tailored to the customer’s specifications, so the parts can move on to the next working station without any intervention.
After use, residual abrasive media falls down the bottom of the blasting chamber, where it is conveyed by screw conveyors and a bucket elevator to an automatic media cleaner.
The abrasive reclaimer provides continuous handling and recycling of abrasive media based on particle size in order to maintain optimal and consistent quality blasting.
For heavily regulated applications, a magnetic and/or vibratory particle separator can be added to precisely sort the abrasive shots based on their size and density.
All shot blasters are equipped with PLC, display, timer, automatic or manual mode, automatic start-up of the blast wheels, working-hours counter, and other basic features.
Blast wheels and blasting chamber inner walls are protected by wear-resistant shields made from manganese steel liners for extremely long service life.
Blast wheels can be equipped with a frequency drive and ir sm@rt valve to precisely control the flow of media for optimal results.
Shot blasting machine with rotating drum VB 140