The systems, which are intended for use on remote continuous miners, work using electromagnetism to sense when a person is within close proximity of a moving machine.

If the worker doesn’t exit the “danger zone”, the unit is then programmed to shut off, removing the potential of being pinned or crushed.

Just two weeks ago, the Virginia-based operator aided in demonstrating the system, for which it partnered with manufacturer Nautilus International and served as a field test location, in West Virginia.

Other partners in the development process for the system included Repair King and Joy Manufacturing.

Four years in the making, the system’s demonstration allowed Massey and the other associated companies to obtain industry feedback.

The Mine Safety and Health Administration has also approved the Nautilus International proximity detection system for use in mines across the US.

“We are grateful to the others involved in helping to move this technology forward,” said Massey chief operating officer Chris Adkins, who headed up the effort to bring the system to fruition.

“Nautilus International, Joy Manufacturing and numerous federal safety agency personnel embraced the project and provided a great deal of expertise and assistance.

“It will be impossible to measure the number of lives this technology will save, but we know our efforts will make a dramatic impact on mine safety,” he said.

Company chairman Don Blankenship concurred, adding that the system’s introduction is in line with the company’s reputation as a “leader in safety innovation” and for “developing pragmatic solutions to identifiable problems”

He added: “The proximity detection system exemplifies our philosophy and we are very proud of it.”

Meanwhile, MSHA announced late last week that the TramGuard proximity protection system, which it said is the first government-approved product, will be demonstrated today in Kentucky.

Developed through a joint venture between Gamma Services International (GSI) and Geosteering Mining Services, the system’s exhibition will take place at GSI’s headquarters in Clay, Kentucky.

All three groups will be in attendance for the event, which begins at 10am local time.