The helical gearboxes in the C series are competitive products offered as a supplement to your own produced Strong series.
The helical gearboxes in cast 
iron are planetary gearbox extremely suitable for heavy loads and at high efficiencies.
The input shaft can be given an ICE motor flange or with a free input shaft. The result side is always supplied with a free of charge shaft end. The gearboxes can be fitted on ft that match various other brands out there or with flanges of different sizes.