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Semi-automatic precision spotblaster

This installation has been designed by our experienced engineering team as a custom-made and individualized solution. We were approached by a company specialized in porcelain enameling, with the specific application being “thick film heating”.

The blasting process is aimed at locally removing the enamel layer to create small contact areas on battery heating elements.

Semi-automatic blastingmachine

With our proven track record in building automatic blasting machines, accumulated over decades, we work closely with our customers to provide the best possible solutions and to build long-lasting business relationships.

One of the customer requirements was a cycle time of maximum 12 seconds per two elements. We took on this challenge and successfully completed it.

The blasting process entails significant wear of the parts in direct contact with the abrasive flow. Therefore, we have designed steel “pucks” that can be quickly replaced to minimize downtime.

  • Height-adjustable centering pins with product support;
  • Hardened masking blast pucks, adjustable in height by means of shims;
  • Cavity in the 20 mm steel plate for easy product placement and removal.

The nozzle window positions the nozzles directly under the blasting openings in the masking plates. This is a removable window and can be replaced with a framework with a different layout of nozzles. The elements are blasted from the bottom, with a maximum of 4 nozzles per element at a time.

End stops and positioning are done by means of Sick safety approach sensors, and we use a laser sensor for product recognition. When the Sick sensor is approached and the element is correctly positioned, the laser sensor will send a signal to start the blasting process. Additionally, the front of the machine is equipped with a light curtain that is active when the sled moves.

We use an electrically driven linear traverse guide with sled. This sled, which moves over the elements, presses the element against the masking plate when in position, after which the blasting process begins.

When two elements are being blasted on the right position, the operator can swap the blasted elements on the other side with two elements to be blasted. The downtime is therefore minimal.

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Straaltechniek International Group

We offer the most advanced solutions in the (high-end) metal processing industry and supply customisation for each specific problem.

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