FAQ: HSM Roller Crushing Technology
Expert answers for your crushing and sand making challenges.
Q: Why is HSM’s hydraulic roller crusher better for granite and river pebbles?
High-silica hard rocks cause extreme wear in traditional hammer or impact crushers. HSM’s **Hydraulic Roller Crusher** uses low-speed laminated crushing, which significantly reduces friction and wear. Combined with our alloyed roller skins, you get longer service life and lower operating costs per ton of finished sand.
Q: Does the hydraulic system protect against iron blockage?
Yes. HSM’s intelligent hydraulic system is equipped with an **automatic safety relief valve**. If tramp iron or other uncrushable objects enter the chamber, the hydraulic cylinders instantly retract to release the object and then reset to the original pressure, preventing damage to the shafts and rollers.
Q: Can it handle wet materials with 20% moisture?
Absolutely. HSM roller crushers are **screen-free**. Without screen grates at the bottom, there is no chance for wet coal, clay-heavy ore, or damp sand to accumulate and clog the system. It is the perfect choice for year-round production in monsoon or humid environments.
Q: How can I customize the roller surface?
HSM offers flexible configurations. Depending on your material and feed size, you can choose from **Toothed Rollers** (for coarse/medium crushing), **Smooth Rollers** (for fine sand making), or **Surfacing Rollers** (for extra wear resistance). Contact our engineers for a recommendation based on your material test results.
