The Situation
Agnico Eagle, one of the world’s leading mining companies, needed to create a more comfortable work environment in their deep shaft mining operations, approximately two miles underground. Environmental control sales and product engineering experts from HDT Global collaborated with Agnico personnel to understand the product requirements and create a solution that would be rugged, reliable, durable, and able to reduce the excess heat and humidity found in this unique environment.

The Solution
HDT’s 10 and 12 Ton Portable Mining Unit is a mobile, self-contained, air-cooled mine shaft air conditioner capable of reliably operating in 35°C (95°F) temperatures with 95% (or higher) relative humidity levels at nearly 3.2 km (2 miles) underground. The unit produces 2,000-4,000 ACFM of air cooled from 37°C (98.6°F) DB/34°C (93.2°F) WB to 24.5°C (76.1°F) DB/23.7°C (74.7°F) WB at 2,000 ACFM utilizing two air outlets on the ECU.


Key Features

  • Semi-hermetic or scroll compressor
  • R-407c & R-134a models
  • Epoxy coated, wide-spaced coils
  • Take apart TXV
  • Receiver tank
  • Remote sensor thermostat
  • 304 Stainless steel construction
  • 12” casters