Canadian Mining Journal


Well maintained airends on drills can often outlive the host machines

Airends in a drill or air compressor are precision components that help ensure efficiency and success on the jobsite.

They can spin as fast as 4,900 rpm with less clearance than the width of a human hair so, it’s understandable that such precise equipment demands great attention when it comes to routine service and maintenance.

Not only will care and attention help the airends last longer, but diligent maintenance will also help save time and money by preventing expensive replacements and long periods of downtime.

Airends play an incredibly important role at drilling sites by creating the pressure and flow necessary for clearing aggregate and debris out of holes during drilling, but they also provide the energy required to activate the hammer in downhole drilling.

If maintained properly, an airend can last as long (if not longer) than the life of the machine in which it is installed.

So how can you maximize the life span of an airend and prevent malfunctions on the job before they happen? Here’s a look at a few suggestions: If you suspect it’s time to replace an airend: it’s losing pressure or flow but the engine rpm is functioning properly, consider an airend exchange. Today, more and more equipment owners are looking at the option of remanufacturing airends versus purchasing new. Not only is a remanufactured airend less expensive, but this option also involves little to no risk.

During the remanufacturing process, new and used components are used to The manufacturer has tested the airend using original filters, fluids and oil separator elements. Using OEM approved consumables in the machine will significantly reduce the possibility of a malfunction or untimely breakdown.

rebuild an airend that meets OEM standards.

Many OEMs offer the same warranty as a new airend or an optional extended warranty for remanufactured airends.

The cost of buying a remanufactured airend can be reduced further if a used airend meets specific criteria and is returned to the OEM. At that time, a core credit is granted and applied toward the purchase of a remanufactured airend through an authorized dealer.

Ultimately, the best thing you can do for your business is build a relationship with an authorized dealer who knows how to maintain your equipment, and follow the manufacturer recommended airend maintenance schedule to ensure optimum preservation of your drills and air compressors. And when the time comes to replace an airend, the dealer can help you find an economical solution for procuring a high-quality, remanufactured product backed by a factory warranty.

Maximizing life of drill component made easy

1            Read the machine manual. ecome familiar with proper operation, maintenance, safety precautions, tips to improve performance and who to contact for troubleshooting/maintenance assistance.

2            Conduct routine maintenance per manufacturer recommended schedule. Always follow the manufacturer recommended routine maintenance schedule. Not only will it help ensure efficient operation and longevity, but some manufacturers offer no-charge or low-cost extended airend warranties for using OEM consumables and following the recommended maintenance schedule. Preventive maintenance is also vital for guarding against premature wear. Visually check hoses for signs of deterioration, check connections for leaks and make sure the pre-cleaner is free of debris.

3            Monitor the oil level to help ensure the airend receives adequate oil lubrication. Adequate lubrication extends the life of the airend by preventing premature wear of rotors and removing excess heat for optimal performance. Airends with oil pumps mounted on the shaft ensure consistent lubrication to extend the life of the airend.

4            Identify and remove contaminants from the system. Periodic oil sampling should be done to check for the presence of any foreign matter in the lubrication system, such as dirt, moisture or metallic shavings, which could be an indicator of airend damage from inefficient oil lubrication. If contaminants are found, it’s important to flush the system to completely remove the foreign matter.

5            Purchase parts from a reputable and qualified dealer. They are expertly trained by the OEM in maintenance and troubleshooting.

Information for this Special Report provided by Rus Warner, Director of OEM business, Doosan Portable Power.

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