“When the THUNDERBOLT Hammer was introduced, it utterly and profoundly revolutionised worn liner removal. Its working title was the ‘LRT’, for Liner Removal Tool. Our THUNDERBOLT Hammer range has continued serving our Customers for 20 years.

“I’m extremely proud of RME’s new MAGNUM series of THUNDERBOLT Recoilless Hammers. Why MAGNUM? Magnum implies the zenith, the most powerful in its class. These beautiful new Hammers hit harder, with more blows per minute, for even faster liner bolt removal. MAGNUM’s advanced industrial design delivers improved ergonomics and enhanced serviceability. We’ve re-engineered the Hammer’s heart so successfully that scheduled maintenance is greatly reduced.

It’s been a joy to work alongside our THUNDERBOLT engineering and product team as they’ve applied NASA pyrotechnical mathematics to literally transform this range, which includes a superb new MAGNUM Mobile Jib, MAGNUM Power Pack and two new Hammers, the THUNDERBOLT MAGNUM 1000 and THUNDERBOLT MAGNUM 2000 Recoilless Hammers.

This THUNDERBOLT MAGNUM Hammer range is literally in a class of its own.” – John Russell


With selectable power including full MAGNUM-mode, the mighty new THUNDERBOLT MAGNUM 2000 Recoilless Hammer will easily expedite the toughest of knock-in phases, in the most challenging of conditions for fast, reliable, safe relines and improved mill availability.

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Thunderbolt magnum 1000

The THUNDERBOLT MAGNUM 1000 Recoilless Hammer is relining's most productive Hammer yet, combining a rapid fire rate to shorten knock-in duration, selectable power for guaranteed precision and a 90% vibration reduction for outstanding operator safety.

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Engineering Whitepaper

At our Unmissable Webinar series, 'The Knock-in Effect', RME presented commercial outcomes that can be achieved from the new THUNDERBOLT MAGNUM Hammer range. Our Engineers shared the results of a MILL RELINE DIRECTOR (MRD) study undertaken by RME, which investigated the impact of the THUNDERBOLT MAGNUM Recoilless Hammers’ increased strike energy and firing rate on the knock-in phase during worn liner removal.

To underpin the webinar series, RME Engineers produced a 10-page whitepaper which summarises the results from the MRD study including the potential to achieve significant annual reline time reductions of up to 44 hours* or more through optimal use and configuration of THUNDERBOLT MAGNUM Hammers. 

This whitepaper addresses:

  • The 'Knock-in Effect' highlighting optimal Hammer configurations relevant to different mill sizes and types
  • Mill scenario modelling with benefits defined for high wear and full scope relines of mid and large mills
  • Modelling outcomes for typical and difficult reline conditions on one or both sides of the mill

To access RME's engineering performance whitepaper 'The Knock-in Effect' click here!

*Annualised reline time saving modelled from three (3) THUNDERBOLT MAGNUM Hammers (1 x 2000 & 2 x 1000’s) relining a large SAG mill versus a single THUNDERBOLT 750 Special Performance Recoilless Hammer reference case (see scenario B in the ‘The Knock-in Effect’ whitepaper for further details)

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If you would like to talk to someone about the THUNDERBOLT MAGNUM range, please click here.



Since its introduction in 1997 and with more than 860 units sold worldwide, THUNDERBOLT Recoilless Hammers are the safest and most advanced liner removal tools (LRTs) for mill relining. As the world's only truly recoilless Hammer, and preferred by mill operators and reline crew alike, THUNDERBOLTs stand alone for reliability, longevity, productivity ― and mill availability.

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Advanced industrial design

Precision-engineered for mill reline operators by the mill reline experts, RME’s soon-to-be-released THUNDERBOLT MAGNUM puts the performance and safety of your reline crew first.

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A new benchmark is set

Higher mill availability through fast, reliable and safe relines is RME’s mission, and the new THUNDERBOLT MAGNUM absolutely delivers on this promise.

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