Stahlbau FAQ

Structural Steel FAQ, Part 9 – Removing Residual Blast Media and Dust

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shot blasting, structural steel components often require some cleaning. The

degree of cleaning depends on the work piece’s condition prior to processing as

well as machine set-up.



This installment of our Structural Steel FAQ series will answer How are residual blast media and dust removed from shot blasted steel components?


Why Remove Residue



Ancillary machine attachments and processes may be

required to remove blast media and dust resting on structural steel components

to ensure surfaces are properly prepared for painting and coating.



The need for a clean and well-prepared surface after shot blasting mirrors that of the pieces surfacing in the first place as discussed in Part 1 of this series.



Methods of





Practically all plate and profile roller conveyor

shot blast machines are equipped with a media brush-off system at the machine

exit. By adding a rotary brush at the end of the process, residue is removed as

the work piece exits the machine.




Brush off station



Many times, the brush unit is augmented by a

blow-off system with one or multiple radial fans to ensure there are no “dead

zones” where residue remains.



Monitoring the Work Piece




account for different work piece dimensions, a photo cell is often included in

the machine. This allows the machine to monitor the height of work pieces and

automatically move brush- and blow-off units to accommodate variations in size.



The Rosler Way


Whatever your structural steel media needs are, you can count on Rosler Metal Finishing to help you find a better way and the best machine. Contact us today to discuss your unique challenges.



The complete Structural Steel Series includes:



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