Job card
EXEX-SUELL-MAI
Machine class
Excavator
Method
Surface Mining
Site area
Ellisras, Lephalale municipality, Limpopo
Preventative Surface Mining Excavator HVAC Service in Ellisras
Excavators working surface mining around Ellisras carry a specific thermal problem: high-cycle loading duty with the cab exposed to radiant heat off the boom and hot hydraulics. Surface mining operations run wide, dispersed fleets across multiple pits, which makes mobile in-field HVAC capability more valuable than workshop-only capacity. Planned intent. Work is scheduled into existing service bays and shutdown windows so HVAC never becomes the reason a machine is standing.
What the hvac service covers
Airflow separation between oil coolers and condenser
Evaporator strip, clean and thermistor calibration
Full electrical control circuit diagnosis
Post-repair cab temperature verification under load
Failure modes we expect on this machine
- Recirculated hot air from hydraulic oil coolers into the condenser stack
- Evaporator icing from a failed thermistor or blocked return air path
- Refrigerant loss at vibration-loaded compressor manifold fittings
- Blower motor bearing failure from cyclic dust ingress
Heat gap analysis · Ellisras
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 Ellisras bench, and why we verify every repair with a measured delta-T under load rather than a gauge reading at idle.
Ellisras logistics
Ellisras sites are effectively home ground. Technicians can be on a face within the hour and workshop change-outs are booked same day where a bay is available.
Coal open-cast fleets, contractor earthmoving yards, load-and-haul crews and heavy plant workshops operating under Ellisras-registered site addresses.
Questions about this work in Ellisras
Other excavators work in Ellisras
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