JUST HAMMER IT: The BANDIT HM-640 Hammermill Grinder

After considerable research and collaboration, the Bandit team brings you the HM6420 hammermill grinder!

This highly productive 40-inch capacity grinder is designed and manufactured to excel in grinding applications where contaminants are likely present. A Caterpillar C32 1,200-horsepower engine provides ample torque and horsepower for optimal machine performance and productivity.

The heart of the HM6420 is a 50-inch diameter by 66-inch-wide hammermill. The heavy-duty mill features a 1.75-inch drum skin custom formed from rolled plate. The drum is supported by a 7-inch main shaft constructed of ultrasonically tested alloy steel. The mill is equipped with 20 carbide infused hammer inserts built to withstand the toughest material. All hammers, holders and pockets have been designed from the ground up to maximize durability and to make repair and replacement as easy as possible.

A heavy-duty, direct drive slat-style infeed conveyor generates more than 18,000 pounds of pulling power. The large diameter feed wheel provides an additional 17,000 pounds of pulling power and up to 17,300 pounds of crushing power when hydraulic pressure is applied.

The HM6420 has a one of the fastest feed rates on the market. A proportional feed system is standard and regulates the feed system from 82-132 feet per minute. Operators can adjust the feed speed based on the material being processed to ensure maximum output and grinder efficiency, all while achieving a higher quality end product.

The mill on the HM6420 contains 3 interchangeable screens. These screens come in a variety of sizes up to 7 inches and allow for precision control of the end product. An easy access removable screen cradle allows for quick screen setup changes, and all work can be performed from outside the machine.

An impact detection system is standard and designed to limit damage if a contaminant is struck inside the grinding chamber. If an impact event is detected, the grinder will idle down, open the gate, disengage the clutch and reverse the feed.

A 56-inch-wide discharge with a max stacking height of 16 feet 8 inches is standard. A wireless radio remote controls all grinding and track functions and features an LCD screen that displays engine coolant temperature, oil pressure, engine load percentage, engine RPM and battery voltage.

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