KOMATSU
Komatsu Super Coolant Extends Machine Life and Reduces Environmental Impact

Reported by Keiji Konno, Komatsu Ltd.

Komatsu’s Super Coolant AF-NAC offers high performance with low environmental impact.
Coolants are employed to prevent freezing, corrosion and rust in cooling systems. They have a variety of other useful functions, but in general, they have a tremendous impact on the life of engines, radiators and power trains.

Komatsu is currently promoting the global development of its Super Coolant AF-NAC in proposing lower machine operating costs. Incorporating Komatsu’s cutting-edge proprietary technology, the coolant offers high performance as well as longer coolant change intervals.

The considerable technological advances in coolants in recent years have had a major effect on the longevity of core components of construction and mining equipment. The main features of a coolant are to prevent freezing of the cooling system during the winter season as well as corrosion and rust. In addition, Komatsu’s Super Coolant AF-NAC offers anti-cavitation protection demanded by heavy-duty construction and mining equipment.

Moreover, amid greater attention given to environmental issues in recent years, Super Coolant AF-NAC contributes to lower pollution through a dramatic reduction in environmentally harmful additives.

Key Advantages of Super Coolant AF-NAC

By adding special polymers created through Komatsu’s proprietary technology, this revolutionary coolant offers a level of cavitation prevention unparalleled in previous coolants, meeting the needs of heavy-duty construction and mining equipment.

  Additives critical to maintaining coolant performance eventually get used up. Super Coolant AF-NAC’s highly heat-resistant, long-life additives promote powerful resistance to corrosion and rust.

  Special additives are used to prevent generation of water-clogging scales, which causes overheating, to suppress the overheating of key components.

  Super Coolant AF-NAC contains no amine compounds, nitrite and borate, all of which are environmentally harmful additives. Moreover, this product represents a significant advancement toward lower pollution through considerably reduced use of additives that eutrophicate the properties of water.

In addition to North America, Europe, Japan and China, Komatsu is aggressively promoting Super Coolant AF-NAC in other markets around the world as part of Komatsu’s solution business provided to customers.

Life of Coolant Additives by Temperature

(Based on Komatsu}s in-house data comparison)


Anti-Cavitation mechanism of Super Coolant AF-NAC