Contamination from cylinder failures returns to the reservoir and recirculates through the remainder of the system. Much of the contamination passes through the existing reservoir screen and into the various pumps and control valves. Larger particles collect on the screen, increasing pump cavitation and pump damage. This results in system wide failures that are costly and time consuming to repair and are most frequently accompanied by follow-on failures due to limitations of flushing techniques used as part of the repair process.

Michael Hynes
Superintendent of Reliability
North American Construction Group

These results represent Mag-Shield® performance in twenty excavators operating at several of this customer’s mine sites over a period of 5 years. Mag-Shield® were installed in the hydraulic systems of these excavators. Following installations, repair costs and failure rates improved dramatically, and follow-on failures were eliminated. Savings were also realized in the reduction of transportation costs related to moving the machines to and from site. The result: less disruption for operations, planning and maintenance; improved availability and hundreds of thousands of dollars saved. Return on investment was less than one year.