News & Stories

MDS M515 Redefines Rip Rap Processing in North America

September 23, 2025

MDS has seen a significant rise in demand for its M515 Heavy Duty Trommel across North America. Renowned for its ability to produce high-quality, precisely sized rip rap material, the M515 is playing a key role in helping customers meet the need for this material, driven by an increased focus on infrastructure development, flood protection, and environmental conservation.

In the quarrying industry, rip rap is produced by extracting and processing rocks of varying sizes, often as a byproduct of other mining operations. Rip rap is categorized into five classes, ranging in sizes from 12-inch to 34-inch rock. Each class is designed with a low percentage of fines, making it suitable for various erosion control and structural applications.

Smaller classes are ideal for foundational support in submerged structures such as piers, while mid-range sizes are commonly used for erosion control along rivers, lakes, and embankments. The largest classes offer protection in high-impact areas, including steep slopes, shorelines, and windmill bases.

Whether it's protecting shorelines, stabilising riverbanks, or reinforcing structures against erosion, the need for high-quality, precisely sized rip rap material means that it is becoming an increasingly attractive market.