Job card
DRMI-SULEP-ASS
Machine class
Drill Rig
Method
Surface Mining
Site area
Lephalale, Waterberg, Limpopo
Fleet Surface Mining Drill Rig HVAC Repairs in Lephalale
Drill Rigs working surface mining around Lephalale carry a specific thermal problem: static drilling positions where cuttings dust settles directly onto the machine. Surface mining operations run wide, dispersed fleets across multiple pits, which makes mobile in-field HVAC capability more valuable than workshop-only capacity. Evaluation intent. A full fleet HVAC audit quantifies risk, parts exposure and expected downtime before committing to a maintenance contract.
What the hvac repairs covers
Electronic leak detection and nitrogen pressure testing
Compressor, condenser, evaporator and expansion valve replacement
Hose, fitting and bracket re-engineering for vibration duty
Vacuum, recharge and performance verification with delta-T records
Failure modes we expect on this machine
- Condenser fan motor failure with zero natural airflow to fall back on
- Drill cuttings packing the condenser and pre-screens
- Cab operator-station heat load from mast-side radiant gain
- Electrical control faults from dust-bridged relays and connectors
Heat gap analysis · Lephalale
41°C
Ambient in pit
20°C delta to hold
21°C
Required cab temp
A system that has lost even 15% of its condenser capacity cannot bridge a 20°C gap. That is why fouled cores and marginal charge levels present as complete cooling failure on a Lephalale bench, and why we verify every repair with a measured delta-T under load rather than a gauge reading at idle.
Lephalale logistics
Our workshop and parts store is in Lephalale, so common compressors, driers, hoses and blower assemblies are held locally. In-pit units are dispatched from town, and most breakdowns are attended the same shift.
Large-scale open-cast coal, overburden stripping fleets, dragline support plant, power station coal handling and the contractor fleets that service them.
Questions about this work in Lephalale
Other drill rigs work in Lephalale
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