Application

Rotating barrels generate an extremely gentle finishing process with an even surface finish and finely radiused edges. Rotating barrels offer in many instances technically and economically optimum solutions, especially for processing of small parts in small to mid-size batches. Trowal barrels are also ideal machines for surface smoothing and even polishing.

Functional principle

The double cone octagonal shape of the rotating barrel generates a three-fold sliding movement of the media/parts mass. At rotational speeds of 9 - 30 rpm the relative movement between parts and media is extremely gentle and, thus – with relatively long processing times - produces an excellent surface finish. Manual loading of parts and media. For easy unloading of the finished batch the barrel is electro-mechanically tilted downwards.

Technical characteristics

• Barrel drive: Double speed motor with 3-stage V-belt and toothed gear drive

• Barrel: Double cone octagonal welding construction

• rubber or polyurethane

• Wear protection: Barrel lined with wear resistant

• Tightly fitting safety lid made from polyurethane

Tilting system

•  Automatic tilting of the rotating barrel by way of gear motor and spindle drive allows easy loading/unloading of the barrel. This feature helps reduce nonproductive loading/unloading times, especially in the case of multi-barrel installations and short cycle times 

Optional features

• Rinsing station: Barrel lid with quick-connect fasteners, nipple and rotating WALTHER coupling

• Adjustable rotating barrel speed by way of frequency converter

* Ratio of media to component normally 3:1, d.h. 3 parts media and 1 part component

** Parts size limted by barrel opening. Rotating barrels are mainly used for gentle processing

     of small parts