A Sand Blasting System for Perfect Surfaces

Blasting agents and blasting methods are adjusted to the result.

A sand blasting system is the all-rounder in surface finishing. Depending on the blasting agent and blasting method used, it can produce just the right surface effects. Blasting no longer uses any actual sand, though the term of sand blasting system is still used.

The matching sand blasting system for your application

SIGG Strahltechnik produces systems for various areas. Every sand blasting system is designed for a specific procedure with the matching blasting agents that are also adjusted to the procedure and the desired surface effect. Depending on the customer's order, samples are first sent to the in-house test lab and processed with various procedures there. On request, SIGG also produces sand blasting systems precisely adjusted to the customer's specifications – e.g. with specific dimensions or a particular degree of automation.

The three basic principles of sand blasting systems

A sand blasting system generally works based on three principles: pressure blasting, injector blasting or wet blasting.

Pressure-blasting systems

The required blasting agent is filled into the sand blasting system in a blasting pot. This pot is pressurised while compressed air is routed through a supply line below the blasting pot. The blasting agent and compressed air are then brought together in the mixing tube. The pressure can be varied – at 4 bar, the jet speed reaches about 250 metres per second. Depending on pressure and blasting medium, this sand blasting system can adjust processing intensity to the workpiece's requirements.

Blasting according to the injector principle

Here, compressed air is routed into the blasting nozzle. Only in the blasting gun will the blasting medium and compressed air meet – the blasting medium is sucked in with a vacuum for this. In this sand blasting system, the blasting agent volume is regulated by compressed air: the less air flows, the less blasting agent is sucked in and the lower the effect on the workpiece surface.

Water, air and blasting agent: wet-blasting systems

In this method, water and the chosen blasting agent are mixed in the pot. Every single blasting agent particle is spherically enclosed by water due to the surface tension water has. The ratios of blasting agent, water and air can be changed as desired to control the blasting result.

Are you looking for a sand blasting system for processing your workpieces? Contact us – we will recommend a matching system to you. Call us directly at +49 7741 808 930 or send an email to info(at)sigg-strahltechnik(dot)de to describe your project.