Substations, transformers, HT and LT cabling, custom panels, motors, pumps, and solar. Specialist electrical and infrastructure solutions for surface and underground mining, trusted by De Beers, Sasol, Impala, and Northam.
INC Unlimited is a solutions-driven engineering and infrastructure company established in July 2018, headquartered in Centurion, Gauteng. We deliver specialised electrical and infrastructure solutions for surface and underground mining operations, where reliability, safety, and fast turnaround are critical.
With over 20 years of mining industry experience behind us, we understand operational pressure and deliver practical, high-quality solutions that minimise downtime and ensure compliance, from a single motor rewind through to a full substation build.
Hazardous-zone flameproof work, MV reticulation, and full plant electrical, all under one contractor.
Mini substations, transformers, HT and LT cabling, custom-built distribution boards, and gully boxes, designed, supplied, and commissioned for surface and underground mining operations.
Installation, rewinding, and servicing of electrical motors, soft starter controllers, and power packs that keep mining machinery running at full capacity.
Electrical pumps, submersible pumps, and level control systems for dewatering, process water, and critical mining infrastructure where reliability is non-negotiable.
Grid-tied and off-grid solar, hybrid solar-plus-generator integration, and battery storage systems, engineered for remote sites and energy-cost reduction.
Custom-built control panels, MCCs, and gully boxes, fabricated, wired, and tested in-house to suit the exact scope and environment of each mining application.
Authorised to issue Electrical Certificates of Compliance, with construction standards, health & safety, and administrative certifications to back every project.
Long-term partnerships with diamond, platinum, gold, and energy operators, built on consistent delivery and accountability.
We don't interpret the rules loosely. These are the frameworks every job is built on, so your regulator audit file is half-written by the time we leave site.
Every job aligns with the MHSA, the Electrical Machinery Regulations, and your mine's own standing Code of Practice.
Correct zone classification for gas (0/1/2) and dust (20/21/22) atmospheres, with the right Ex equipment selection for each.
Installation, inspection, and maintenance of Ex equipment follows the IEC 60079 series, with documented gap measurements and inspection schedules.
LV installations on accommodation, offices, workshops, and surface plant tested and certified to SANS 10142-1 with a COC.
From site survey to handover, documented, reviewed, and signed off at every step.
Drawings reviewed, zones classified, bill of quantities and compliance checklist documented.
Written method statement and task-specific risk assessment agreed with mine safety before mobilisation.
Ex-certified equipment and MV switchgear sourced from approved suppliers with traceable certification.
Work carried out under permit by qualified electricians with a registered responsible person on site.
Insulation, earth continuity, loop impedance, RCD trip times, hi-pot, and functional tests, all documented.
Full handover pack: COC, test reports, single-lines, as-builts, datasheets, and warranties. Audit-ready.
Whatever you mine, the electrical problems look similar, and we solve them the same way: properly.
Surface plant, concentrators, and workshop electrical for platinum operators across the Rustenburg and Limpopo belts.
Shaft support infrastructure, workshops, and surface reticulation for established South African gold mines.
Process plant electrical, DB boards, and pumping infrastructure for diamond mining and processing operations.
Surface infrastructure, conveyor electrical, and processing plant installations for coal and energy operators.
HT/LT cabling, custom DB boards, and substation work for heavy industrial sites running continuous operations.
Submersible pumps, level control, motors, and cabling engineered to perform in underground mining conditions.
What engineering managers, safety officers, and project teams usually want to know before we mobilise.
Gauteng & surrounding mining regions
Mining electrical is part of a broader electrical contracting capability.
Substations, motors, cabling, panels, pumps, and solar, delivered to mining standards with full compliance documentation.
