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The Leishman family commences the development of electronic control systems for mining and general industry, in Bowral NSW. This development is based on an extensive working history in underground coal mining, then engineering and general management of major design/supply houses to Australia’s Mining industry, including Vale Engineering, Kembla Coke, and Coal and Cable Makers Australia (MM Mining).
The family acquires the Bramco range of advanced mining control products, based in Newcastle NSW. Dating back to the late 1940s, this range covers Battery Earth Leakage control, Conveyor Belt Slip Control, the Conveyor Electronic Speed Switch, Sequence Unit, and other mining-focused technologies.
They then bring together a dedicated team of experienced engineers and technicians to produce innovative, multiple first-to-market solutions, that were historically/previously distributed worldwide through various companies including:
The launch of the iM1 range of individual electronic control relays. Labeled predominantly as Bramco, they individually cover various functions including Earth Leakage, Earth Continuity, Overload, Short circuit, Earth Leakage Lockout and Loss of Vacuum amongst others.
Release of the hugely innovative, mining motor control and protection system, known as CPM1. CPM1 combines an unending combination of individual electronic control functions into one module. This is the start of the CPM1 legacy, continuously updated and developed for over 30 years. Many hundreds of variants of the CPM are engaged around the world and carry necessary approvals for use in hazardous environments.
Launch of the new individual relay range. Replacing the IM1 series, the i-Series carries approvals for use in hazardous environments amongst others. Incredibly compact and meeting the latest industry local and international design/operating standards, they cover Earth Leakage (iab), Earth Continuity (iC), Overload (iK), Pilot Control (iD), iF Frozen Contactor, iG Earth Leak Lockout amongst others.
Release of a totally new, control, monitoring, and protection package for conveyor systems. With many industry firsts, this range includes conveyor stop, start, sequencing, pre-start warning control, and emergency stop via remote control trip switches amongst many other features. Known as ICMS this range is currently installed in systems covering (often) fifty klms of conveyor structures in many countries worldwide.
A new generation of CPM is added. With powerful and advanced micro-processor control and functionality, the CPM1micro is sold as Emis Sales in South Africa also, and secures widescale acceptance over the next years with Sasol Mining, in addition to expanding its market base in Australia and the U.S.
The launch of a range of micro-processor controlled individual relays, following on from the CPM1micro, including the new fascia mounted ed ELF (Earth Leakage) and SCOLm (Short Circuit Overload) and Twister (Fan control).
A heavily updated ICMS is released. Now providing more advanced, stop, and start control and monitoring for conveyors over 40klms from one control unit, including side sequence control for small, adjoining conveyors. Also covered is dust suppression, and pump control and monitoring.
The new range of BK400 Emergency Safety Pullkeys are released. Offering extremely robust, corrosion-resistant components, these are designed to be spaced at 200m along a conveyor system, which is the widest spanning available worldwide.
Development of active temperature compensation system for mining conveyors. Essentially, this is a hydraulically controlled process, that accommodates movement in cables running along conveyors, meaning as cables contract in extreme cold and expand during extreme heat, these cable and the operation of the safety system is not impacted (eradicating nuisance tripping).
To meet the latest design standards, predominantly AS/NZS2081:2011 and related IEC demands, and using the fundamentals developed since the early 1980s, the new b3 range is announced. Again, core protection functions cover EL, EC, OL, SC, ELL, FC etc. Now utilizing advanced (latest) microprocessor technologies, these are offered in Australia, and other key markets including Indonesia, Turkey and the US, and marketed/identified as Bramco South Africa and Intermountain Electronics, amongst others.
The Leishman’s, and their team, are excited to continue this legacy, through their partnership with m-Tronix Australia. In again advancing key core objectives across design, build, supply and support, M-Tronix represents the new face for these products and solutions, that remain ideally suited to mining and general industry. New designs are currently being finalised for release in late 2023 and early 2024, across motor control and protection and conveyor monitoring systems.
