Stratajacks Installed

Welcome to Cougar Stratajacks, the latest development in secondary roof support systems for the mining industry.

The Stratajack

The Stratajack is a cost effective, lightweight, safe, efficient and effective alternative to other standing roof support systems for the underground mining industry.

The Stratajack is a patented ACTIVE standing roof support that provides a minimum 2 tonne of force between the roof and floor on installation, conforming to the roof and floor profile maintaining the strata beam above.

Cougar Grouts

Cougar Grouts have been designed using cellular technology. Using preformed foam we can produce the required Mpa to suit the application requirements. We offer 2 types of grout Hydragrout and BSF1000.

HYDRAGROUT® is a shrinkage compensated expansion grout used within our Stratajack.

BSF1000® is our standard grout used in void filling applications.

Cougar Pumping System

Cougar Stratajacks have designed one of the most efficient and effective pumping systems on the market. The pumping system has a high volume output of 100m3 in 1 x 8 hour pumping period with improvements to double this volume with the series 2 pumping system. Powered by a JUG-A-0 using load sense technology for efficiency. 

Single Axis Roof Simulator (SARS)

Cougar have built the biggest press in the southern hemisphere. The press is designed to test standing roof support capacities for the underground mining industry. The SARS was built with a load mapping and convergence measuring PLC in place to remove all the grey around standing roof support capacities. 

Proactive Seal

Cougar Stratajacks have developed a 20 and 50psi proactive seal, supported by Stratajacks and dry shotcrete form work. The proactive seal utilises the efficiency of the Cougar Stratajacks high volume grout pumping system combined with the effectiveness of Cougar’s HYDRAGROUT product and the active support of the Stratajack to create a proactive seal for the mining industry. With the utilisation of the Stratajack and HYDRAGROUT the seal provides 2 forms of protection against convergence through the active force on the roof and floor provided by the Stratajack and the compaction capabilities of the cellular grout.  


Whitehaven Coal Stratajack Installation

23 Jun 2017 12:47 PM - Stratajacks Installed in Water

Cougar Stratajacks have recently Installed 108 Stratajack at Whitehaven coal Narrabri with the Installation taking place through knee high water and poor ground conditions the Stratajacks once again proved it diversity and ease of installation.

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Stratajacks awarded Oaky North Installation

23 Jun 2017 11:59 AM - Stratajacks proven to be the superior product

Cougar Stratajacks have been awarded the Installation of 500 Stratajacks at Oaky North Coal.

A trial was conducted between the Stratajack and two other standing support products at Oaky North Coal mine with the Stra...

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Stratajack Install at Springvale Colliery

21 Feb 2017 8:51 AM -

Cougar Stratajack’s latest installation at Springvale Colliery in NSW has started well with improved support installation rates being a stand out feature.
Other benefits were the significant reduction in man hours and the reduction ...

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