Cleaning Wet & Sticky Rock
Cleaning in tough/wet conditions can be extremely challenging. MDS Trommels have drum cleaners allowing them to excel where other machines fail by preventing blinding from the heavy, sticky material coming off the rock.
Drum Cleaners Reduce Downtime and Maximize Profitability.
Drum cleaners prevent blinding by removing built up material from the screening surface.
Applications
Screen Rock Up To 50″
Larger units, like the M820 can screen rock up to 50″ and are effective in cleaning clay-bound stone or rocks mixed in clay or other sticky materials
Demolition Waste
Demolition recycling is one of the key applications of MDS Trommels, where they are often used to separate building waste, bricks, concrete and topsoil with sand. They are highly mobile and easily moved onto recycling sites or retrofit into existing recycling systems.
Screen and sort Material By Size
You can put up to three different sizes of screens on some of our trommels, which means you can separate rocks into four different sizes.
Applications
Screen Rock Up To 50″
Larger units, like the M820 can screen rock up to 50″ and are effective in cleaning clay-bound stone or rocks mixed in clay or other sticky materials
Demolition Waste
Demolition recycling is one of the key applications of MDS Trommels, where they are often used to separate building waste, bricks, concrete and topsoil with sand. They are highly mobile and easily moved onto recycling sites or retrofit into existing recycling systems.
Sort Material By Size
You can put up to three different sizes of screen on some of our trommels, which means you can separate rocks into four different sizes.
What is Rip Rap
Rip Rap or Armour Stone, as it is often called, is a rock product used to line shorelines, stream beds, bridge abutments, and other shoreline structures to protect against water or ice erosion.
The only criteria for the rock used to produce rip rap is that it be durable and won’t deteriorate during freeze/thaw cycles or when exposed to water.
There are diferent classifications for rip rap based on size, weight and allowable velocity (m/s). The province of British Columbia has developed its own Standards for Riprap that provides guidance for selection, sizing and placement of riprap. You should consult these to learn more.
Typical Applications Include:
- Rip Rap/Armour Rock
- Blast Rock
- Granite
- Limestone
- Sticky/Wet Material
- Demolition Waste
- Primary Processing
- General Recycling
- Wood Waste

MDS M412 Rock Trommel Screen
The M412 Mobile Track Trommel, the smallest of the MDS range boats an impressive output of 300 tonnes per hour.
Specification | Value |
---|---|
Engine | CAT 2.2 50kW TIER 4 Diesel | Output 300 tph |
Weight | 21.5 Tonnes |
Max Material Feed Size | 3.4m3 Hydraulic Push Feeder |
Transport Dimensions | Length 12836mm | Width 2500mm | Height 3000mm |
Working Dimensions | Length 16228mm | Width 2500mm | Height 3000mm with Grid 4.4m |

M413 Rock Trommel Screen
The M413 Mobile Track Trommel is ideal for screening from light material to recycling demolition waste.
Specification | Value |
---|---|
Engine | CAT 2.2 50kW | Output 300 tph |
Weight | 24 Tonnes |
Feeder | Hydraulic Push Feeder |
Transport Dimensions | Length 13405mm | Width 2500mm | Height 3100mm |
Working Dimensions | Length 16850mm | Width 6705mm | Height 6705mm with Grid 4.44m | Weight 29.5 tons |

M515 Rock Trommel Screen
The M515 Track Trommel is perfect for cleaning dirty material and can handle rocks up to 800mm (32″) in size.
Specification | Value |
---|---|
Engine | CAT 4.4 96 kW | Output 350 to 500 tph |
Weight | 48 Tonnes |
Feeder | Hydraulic Push Feeder |
Transport Dimensions | Length 17047mm | Width 2980mm with grid 3179mm| Height 3497mm with grid 3735mm |
Working Dimensions | Length 2092mm | Width 7574mm | Height 5004mm |
M518R Trommel Screen
Specification | Value |
---|---|
Engine | CAT 2.2 50kW TIER 4 Diesel | Output 120 tph |
Weight | 20 Tonnes |
Max Material Feed Size | 6.54yd3 Capacity Hopper Heavy Duty US Flex Belt Conveyor |
Transport Dimensions | Length 10374mm | Width 2500mm | Height 3145mm |
Working Dimensions | Length 16420mm | Width 2500mm | H |