MINING HVAC UNIT APPLICATION |
| Sigma Coachair Group has a extensive range of reliable, efficient and competitive applications and units which provide high quality production for our customers. The following are some examples of applications and their corresponding units that can be used for each of them. For a greater range of detail and information about our applications and units please contact your closest Sigma Coachair Group branch. Click here for contact details. |
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 The Sigma TDR7 is a 7Kw-evaporator and condenser rooftop package system suitable for  mining earthmoving equipment such as dozers, excavators, motor graders and front-end loaders. The TDR7 is easily installed onto the roof of cabins, utilising a heavy-duty neoprene rubber to provided reliable and water proof sealing interface with the cabin surface. |
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When roof top space is at premium and/or weight is a consideration however rooftop   installation is preferred, the 7Kw TFR7 rooftop system is suitable for these applications. The system has a contoured front providing for a very compact and easy service access, reliable-heavy duty componentry, stainless steel construction etc. It is versatile for various applications, such as the high performance drill on the right.
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 This conveyor stacker uses a main powered Sigma M7A unit to maintain control rooms under the most difficult conditions and up to 55ºC outside temperatures.  This unit must be able to tilt with conveyor operations. This unit rarely needs servicing however when required the first tool the servicemen brings is a small shovel to dig the unit out. We usually find them still operating. some of these units have been operating without major overhaul for 20 years.
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 The Sigma M20/M25 systems is a 20/25Kw cooling and heating capacity system which is available in  either split or packaged configuration. The capacity of 20/25kW is issued for very large areas typical of operator-crib room combinations as found in electric mining shovels and draglines, like the one on the right.
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 The M20/M25 is a highly versatile unit, as mentioned above. It can be used on a variety of applications, such as the following shovel. This unit is designed with capacity control therefore providing the flexibility to suit lower capacity requirements.
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