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Mining Machinery Problems & Solutions

Hydraulic Pump Coupling

PROBLEM

This manufacturer supplies special vehicles to airports. Some of the auxiliary equipment is hydraulically driven. The coupling that they were using to drive the hydraulic pump was failing on a regular basis. Our customer needed to eliminate this high maintenance item.

SOLUTION

We visited and reviewed the application. The power requirements were within the normal range of the existing coupling. It became apparent that the failures were resulting from excessive misalignment. Closer examination revealed that the misalignment was occurring due to the vehicle frame flexing. There was no simple way to stiffen the frame. We needed to find an alternate coupling with more misalignment capacity.

The existing envelope was very tight and the pump shaft was splined. These conditions necessitated some special modifications. We were able to finalize a design that would be a direct replacement with additional torque and misalignment capacity.

Testing went well, and our special assembly is being phased into the fleet. If you have a problem coupling, give us a call and we 'll work with you to find a solution.

Electric Clutches Increase Safety & Efficiency

PROBLEM

Many of our customers operate mobile equipment with multiple hydraulic pumps to perform a variety of operations. In instances where one engine runs several pumps, power consumption, cold weather starting and pump seal wear often cause problems.

SOLUTION

We have worked with users and OEMs to upgrade their equipment to include electric clutches. With the ability to completely disconnect the hydraulic pumps, the engine has more power available to do what you want. Cold weather starting is much easier without all of the pump drag.

The ability to remotely control PTO activities increases safety. Now that the pumps are only moving when required, seal life is extended. On top of these advantages, you will also save fuel.

We can help you.

Extending Railroad Brake Life

PROBLEM

A local rail authority was experiencing rapid brake rotor wear. This required cars to be pulled out of service every six months. Because the rotors are between the wheels, they had to be pulled and replaced as well. This problem resulted in increased downtime and higher operating costs.

SOLUTION

We requested the operating profile and were able to simulate their running conditions on our dynostand. We used the existing rotor and brake pads to establish a baseline.

After a careful review, we selected a compound to closely match the stopping profile. Our additional dyno runs showed that we matched thecurrent friction levels, extending pad life and reducing rotor wear.

The next step was field testing. After nearly a year of actual operation, our recommended compound proved even better than we projected. Rotor and pad life were extended by a factor greator than three.

If you need to reduce your operating costs, give us a call.