Sustainability awareness and Hercules Trommels

Central African quarry is aware of its sustainability and Hercules Trommels are helping to accomplish their aims for many years to come.


A huge stockpile was generated over many years at this site which contained a large amount of good quality stone. Lump sizes of up to one cubic metre are in the feed and the clay content in the material was seen to be very sticky with a tendency to ‘ball’ together.


A barrel set-up was agreed with the customer that would achieve their clean –up requirements whilst also dealing with the difficult sticky clay during wet periods.


A 500 TPH HT182 heavy duty trommel was supplied to complete the project. The trommel was mounted on a steel skid underframe helping to keep the foundation costs to a minimum. A collecting hopper underneath the first four metres of barrel feeds onto a conveyor to stockpile the rejected clay. The clean material is collected from the trommel via loading shovels for further processing.


The feeder and screen are driven hydraulically from a electric hydraulic power pack located alongside the unit. Drive to the barrel is by a ‘live drive' system with hydraulic motors through cast steel support rollers, which are low maintenance and adjustable.


The trommel is self cleaning,due to the rolling action induced by the larger rocks, and offers the benefit of unmanned operation.