Modern Quarrying Q2 2024

deployed in several applications and process various feed materials. Final screens The final screen cannot be fed big lump sizes of up to -500 mm rock, and is usually used for construction material and produces finer material of 19 mm, 13.2 mm or 9.5 mm. A unique range from Pilot Crushtec is its three double deck models: the Pilot Modular DD2412 Screen has a screen that is 2,4 long and 1,2 m wide which Marais says is the smallest final screen Pilot Crushtec offers. The Pilot Modular DD3615 Screen’s double deck screen is 3,6 m x 1,5 m. “This can be doubled to create the Pilot Modular DD7215 semi-mobile screen. “Its dual boxes are on one speed frame,” explains Marais. “What’s unique about the screen boxes is that the top and bottom boxes use different directional media which allows us to use various screen meshes – something that is unique in the market. We use something called ‘piano wire’: this involves long strands across the screen box in line with the flow of the material. This allows you to create more open area on the screen, making the screen more efficient,” says Marais. It is the fact that the two boxes can be run independently on their own drives that truly makes the Pilot Modular DD7215 come into its own. “Because of the two separate screen boxes, the angle of the first screen box can be adjusted to accelerate the material while the second screen box sits at a fixed angle. You can also run those screen boxes independently on their drives. The top box can be adjusted to accelerate material while the second box can be adjusted to run in reverse so that you retain some of the material and so capitalise on the efficiency of the screen,” concludes Marais. l

The Pilot Modular DD2412 screen, 2,4 long and 1,2 m wide, is the smallest

SCREENING

final screen Pilot Crushtec offers.

The Pilot Modular DD3615 Screen’s double deck screen is 3,6 m x 1,5 m.

Using ‘piano wire’ allows you to create more open area on the screen, making the screen more efficient.

MODERN QUARRYING QUARTER 2 | 2024 22