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PAINT & POWDER COATING PRODUCTS & PROCESSES An ideal combination of performance, in limited space.


Fully automatic continuous spinner hanger shot blast machine for the blast cleaning of a wide variety of steel components prior to painting or powder coating.


Equipment for snow removal and cutting of fire wood is generally used


under rather severe operating conditions.


For this reason, it must be extremely robust and especially the


paint and adherence, which must protect the equipment


against corrosion


and impingement. Of course, this


requires careful


pre-paint surface preparation by shot blasting.


To improve the shot blast results and, at the same time,


reduce the cost, the Norwegian Duun


Industries AS invested in a fully automatic continuous spinner


hanger system RHBD 15/20-K from Rösler.


The customer was


not only impressed by the design of the


Rösler system but also liked, how the Rösler engineers resolved the problem of the prevailing space constraints in the area where the shot


blast machine was to be installed.


Located in the Norwegian town of Asen, the more than 50 years old, family owned company Duun Industries AS specializes in the manufacture of tractor implements such as snow ploughs, snow blowers and sand/salt spreaders.


In addition, the company produces automatic wood sawing machines and log splitters. Nearly half of the production is sold abroad. Production Manager Roald Duun explains: “Another business activity of ours is a job shop for laser cutting and bending of sheet metal. And, last but not least, we build gun cabinets. But this is more a hobby of ours.”


Coping with extremely tight space conditions


Duun Industries performs most of the component manufacturing for its snow removal and wood cutting implements in-house. The company purchases steel plate already de- greased, before they are laser-cut, shaped, welded, blast cleaned and powder coated before finally, going into the equipment assembly shop. Says the Production Manager: “Until recently our ‘shot blasting’ was performed manually after grinding welded seams etc.


38 SURFACE WORLD February 2014


This was very time consuming and labour intensive. An important customer requirement was to place the new shot blast machine next to the powder coating line”. Considering the extremely tight space condition, this posed a real challenge for the Rösler technical team. Roald Duun discussed his requirements with two manufacturers of shot blast equipment. Says Mr. Duun: “Our decision to purchase a Rösler shot blast machine was based on the convincing Rösler technical design and value for money. But above all, we were impressed by the close cooperation with the Rösler engineering team”.


Custom engineered all the way from the component transport system to the shot blast process


The tailor made shot blast system from Rösler is based on the design of the continuous spinner hanger shot blast machine RHBD 15/20-K. It allows the blast cleaning of single large components as well as processing batches of metal sheets, beams and complex welding fabrications with dimensions of up to 4,000 x 1,600 x 2,000 mm (LxWxH).


(CONTINUED ON PAGE 40) follow us on Twitter @surfaceworldmag


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