From the Sahara to the Antarctic and back without leaving the Department
The innovative climatic cell for the thermal tests necessary for the certification of components and machines intended to operate in extreme climates is operational at the Merlo Research Department.The ability to simulate the most demanding temperature and humidity conditions at any time and without having to wait for seasonal changes or to move to different geographical areas is now a reality at Merlo.
The new climatic cell of the Research Department is the only one in Italy and one of the few in Europe to allow certification of machines weighing up to 30 tonnes not only under controlled temperature and humidity conditions but also by faithfully reproducing the countless dynamic parameters that involve the transmission components and the engine while driving on the road.
An exclusive chassis dynamometer with a braking and thrust power of over 200 kW allows technicians to program the working conditions and simulate the stresses of a real road route with its ups and downs and sudden braking, perhaps with a trailer towed.
The internal temperature can be set to values ranging from -40°C to +60°C and kept constant regardless of the operating conditions of the machine under test and despite the high operating temperatures (even with a thermal load of 250 kW!). The cell is also able to control the percentage of humidity to simulate the most severe operating conditions, such as when working in mines or equatorial climates.
In addition, the innovative energy recirculation system makes it possible to reduce the consumption of the system when simulating uphill routes: all the energy dissipated by the brake test bench is converted into electrical current and put back into circulation.