Laserfiche WebLink
Exhibit A <br />Generally it's not a question of if, but more one of when and how often damaging <br />contamination makes it to the mill and into the sizing system of your machine. <br />Shear pins, swing away grates and break away hammers are options offered by <br />other manufactures to protect against catastrophic damage. But contaminates must <br />make contact with these components (and likely others not so well prepared for <br />impact) first in order for them to work. <br />This is because with these other solutions the engine continues to drive the mill <br />causing additional damage to the mill, sizing system, drive, clutch and engine as <br />the ungrindable contaminant is forced past the machines shear/cutting bar and <br />into/through its sizing system. <br />While nothing can immediately stop and absorb the inertia of a rotating mass, <br />Morbark's system using Brunel's Break Away Torque Limiter is meant to mitigate <br />this potential damage more than other systems might. <br />Upon impact this device releases the engine, clutch, and drive shaft from the mill <br />allowing the mill to stop without the engine continuing to apply its force to the <br />mill, disengaging the clutch at high rpm or hot stalling the engine. <br />Once disengaged, a sensor detects the mill's decreased RPM and the engine is <br />automatically idled down, after that the clutch disengaged. This eliminates the <br />possibility of burning out the torque limiter's bearings due to excessive time <br />running at full rpm after its release. <br />Clear out the contamination, line up the grooves in the sheave and Torque Limiter, <br />reset the element (ball & pocket), grease, and you are back up and running without <br />need to replace parts that wear intended to fail as part of a contaminant protection <br />system. <br />Our torque limiter also allows you to prepare for different grinding conditions. <br />Improved from our older versions, the newer design is externally adjustable and <br />allows the setting for its release to be easily adjusted. <br />Bnmel's Torque Limiter device has been used by us for over 20 years now and we <br />feel it's the most dependable and predictable system available. <br />