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Orica debuts 4D bulk explosives system

Convergence of Orica’s technologies powering the revolutionary 4D bulk system. (Image source: Orica)

Orica has unveiled a new range of 4D bulk explosives for the underground market with staged availability to Australian customers this year and later release to the global market

Following the launch of the 4D bulk systems for surface operations in 2021, Orica has now developed a new bulk emulsion explosives delivery system for underground operators that allows precise control of in-hole explosive energy. Subtek 4D offers the widest available energy range on the underground market with accurate matching of energy to suit varying rock properties and mine design requirements.

In combination with Orica’s proprietary emulsion chemistry, the suite of smart explosives delivery technologies integrated with the new 4D MaxiLoader allows instant application of selected energy into the blasthole to match any complexity of blast design, as well as adjust energy between blastholes or within an individual blasthole.  

Orica chief technology officer, Angus Melbourne, commented, "Our new 4D underground bulk emulsion system is all about delivering a precise, predictable product energy in the blasthole that ultimately gives our customers the capability and confidence to execute designs that are not possible today, where energy is matched to geological and mine design needs. The result is very targeted blasting that facilitates optimal recovery of valuable orebodies while ensuring the most efficient use of rockbreaking energy from mine to mill. 4D is a breakthrough solution that will unlock sustained value for our customers."

Consistent and repeatable execution of the charging process is also a key capability of the system, where the loading process is automated through Orica’s LOADPlus smart control system. This ensures optimal application of product within the blasthole, while the wide range of usable relative bulk strength options matches energy distribution to orebody conditions and mine design requirements. The outcome is maximised orebody recovery, reduced dilution and rework through over-blasting, and better fragmentation all while optimising explosives consumption.

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