Coolers

Ottevanger coolers are used for cooling pellets and extrudates to near ambient temperature. The coolers are available in 8 sizes with capacities up to 30 tph.

Working principle

Counterflow cooling is the most efficient process for granular products and meal. The air flows in the opposite direction to the product which means that the product is gradually cooled on its way from pellet-mill to discharge hopper. The air is gradually warmed on its way from air inlet to cooler exhaust, thus preventing pellet damage due to a temperature shock.

Options

Depending on the specific application special discharge systems are available.

Table of types

Type Cooling surface (m²) Capacity(tph)
@5-7mm pellets
Weight(kg)
@2-4mm pellets
VK 14/14 2.0 4 1200
VK 19/19 3.6 8 1700
VK 19/24 4.5 12 2250
VK 24/24 5.7 16 2850
VK 24/28 6.8 20 3400
VK 28/28 8.2 25 3700
VK 28/38 11.0 30 5000