| The Rotary Cooler always operates in counter-flow, but is otherwise similar to the rotary dryer, the hot gases being substituted by ambient or chilled air, which is in direct contact with the material. | |
| In general this type of cooler is used for lower temperature, coarse product applications or in conjunction with an indirect system. | |
| For dusty and/or high temperature applications, where space is limited, or where the material must be cooled to a temperature approaching ambient, Indirect Rotary Coolers can be supplied. | |
| These require either a continuous or recirculated water supply and are available in two forms - external spray and sectional coolers. | |
| Either system may be used for cooling hot products discharged from kilns, calciners at temperatures up to 1000șC. | |
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