The MDS M515 provides a solution for a multinational quarry's operations in the, U.S.A which received a large order to produce Rip-Rap material for a sea defense project.

Their quarries were plagued by rip-rap embedded with stubborn dirt veins. Despite previous attempts with conventional screens yielding no success, the company was determined to find a solution.

The Challenge:

The job required an oversize material of (12"-31.5") 300-800mm and a mid-product size of (6"-12") 150mm-300mm. The quarry rock had been blasted and contained material up to (30”) 750mm. A traditional scalping screen could not give the required 2 products in one pass due to the size restrictions between the top and middle deck of screens.

The M515 Heavy Duty Trommel Solution:

The MDS M515 has a 1.5m wide drum, and wide mouth hopper opening meaning it can accommodate material up to (31.5") 800mm in size. The design of the machine offers large clearance between the bottom of the drum and the side discharge belt resulting in a mid-product of up to (18") 450mm. Weighing in at 48 tonnes the 515 is heavy duty and robust enough to handle the most abrasive materials. The machine is protected from excessive wear by using Hardox steel in the feed hopper, screens, and drum outlets and using crusher-grade tough flex conveyor belts.