Wide Base — positions main bearings away from source of dirt and moisture.
Main Bearings — are self-aligning, anti-friction roller bearings.
Alignment Assemblies — maintains rolls in parallel position through full adjustment range. (not visible)
Adjustment Assemblies — are enclosed from dirt and moisture and allow for easy adjustment.
Secondary Drives — of heavy roller chain, encased and lubricated, provides maximum torque transmission between lower and upper drive shafts. Cog-belt for high torque also available.
Housing — design provides quick accessibility to rolls for maintenance from front or back of crusher.
Gearboxes — uniform sizing requires the positive timing of crusher rolls provided by Gundlach’s patented gearboxes. These units maintain constant relationship of one roll to the other, regardless of position, and transmit full horsepower. All gears are hardened steel. Drive gears are mounted with taper-lock bushings. Idler gears are mounted on anti-friction bearings. A “splash” lubricated oil bath ensures reliable operation.
Coupling Mounted Rolls – facilitate quick and easy changing, cut downtime and serve as slingers to protect main bearings from water and dirt. Roll rigidity is increased.
Upper Rolls — chisel tooth with intermittent grab teeth design efficiently grabs the lumps and then pre-breaks and feeds material to lower rolls.
Lower Rolls — continuous tooth design rolls grab the pre-crushed product of the upper rolls and reduces material to the final desired product size.