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Compressed air, engineered for Africa's mining evolution.
As ore bodies grow harder to reach and energy costs climb, one component quietly decides whether a drilling operation stays productive: the compressor. This is how a leading contractor rebuilt its air strategy around portability, purity and performance.
Africa's mining sector is operating in a fundamentally different environment to the one it faced a decade ago. Contractors across Sub-Saharan Africa are under intensifying pressure to extract more value from complex geology — while managing tighter regulation, rising energy costs and greater scrutiny on environmental performance.
Legacy air setups no longer fit modern drilling demands
Traditional rotary and down-the-hole (DTH) drilling remain the workhorses of hard-rock mining across the continent — robust, well-understood and effective. But the wider adoption of directional and sonic methods, better suited to precision targeting and high-quality core sampling, is changing what the supporting systems have to deliver.
These techniques place different, often more demanding requirements on the air supply: higher purity, greater pressure stability and the flexibility to adapt as drilling angles, depths and conditions change. Compressor selection is being reassessed not just for output, but for efficiency, air quality and alignment with sustainability goals.
A Sullair portable unit deployed on-site — designed to move with shifting drilling programmes across remote terrain.
Where compressed air makes the difference
Compressed air is the invisible backbone of a mining site. It is easy to overlook until it fails — and costly when it does. The relationship between air quality and site performance is direct, measurable and repeats across every application on the pad:
DTH drilling
Air pressure and volume directly influence penetration rate and hole quality — decisive factors for productivity in hard rock.
Exploration drilling
Air purity affects sample integrity. Cleaner air means more reliable geological data and better-informed investment decisions.
Blast hole & quarry drilling
Stable, high-volume airflow keeps rotary and blast hole rigs on cycle — protecting blast-design accuracy and production scheduling.
Surface operations
Dust suppression systems depend on consistent airflow to maintain safe, compliant and productive site conditions.
The compressor is no longer simply a piece of support equipment. In the most productive operations, it is designed in as a core component of the system — selected for fit, not just availability.
“Drilling success today depends on how well every supporting system is aligned — not just the rig, but the air, energy use and environmental impact too.”
What changed on the pad
The move to a portable, high-pressure, engineered-for-Africa platform delivered tangible improvements across six dimensions — from productivity to serviceability.
Move with the programme
Compact, transportable units follow shifting drill patterns across remote terrain — no reliance on fixed infrastructure.
Up to 1,600 cfm
A full range of output capacities from 185 to 1,600 cfm, sized to match every drilling application on the site.
Dual-pressure 350 / 500 psi
A single switch changeover lets operators move between applications — without the cost of running two separate units.
Rated for 49 °C ambient
Every unit in the portable range operates at full rated capacity in African heat — no derating, no compromise on shift output.
Designed for uptime
Large access doors, a rear service panel and external fluid drains keep maintenance windows short and downtime shorter.
CAT engines & global network
CAT engines throughout for parts availability, backed by a distributor network across Sub-Saharan Africa.
A portable range built for demanding drilling environments
The Sullair High Pressure Portable Range covers a full line-up from 185 to 1,600 cfm and pressure options up to 500 psi. Every unit is engineered around the realities of African mining — heat, dust, distance and the need to keep drilling on schedule shift after shift.
High Pressure Portable Range
Engineered for the realities of the environment
Two-stage dry-type air filters draw cool ambient air and incorporate safety elements that protect the airend in high-dust conditions. All Weather Fluid (AWF™) is formulated for extreme temperature ranges, lasting up to four times longer than standard lubricants — with an extended airend warranty when serviced to plan.
The right compressed-air solution is decisive for productivity, uptime and sustainability.
Every mining operation has its own compressed-air requirements, and choosing the right platform is decisive for penetration rates, energy use and site reliability. Through its network of distributors across Sub-Saharan Africa, Hitachi Global Air Power works alongside contractors to ensure that portable, high-pressure systems are selected, installed and supported with the bigger picture in mind.