THE KOCH-TECHNIK DRY AIR TECHNOLOGY
Our dry air dryers dry medium to very large quantities of plastic granulate with deeply dry air to the residual moisture required for processing.
The dry air technology used works in a closed circuit system, completely independent of the ambient climate: Deeply dry, heated air flows through the granulate, absorbs its moisture and releases this in turn to a desiccant.
FASTI KOCH COMPRESSED AIR TECHNOLOGY
Drying hygroscopic granulates with compressed air is the most economical alternative to other drying systems for small throughput quantities.
The special ERD compressed air technology from FASTI KOCH guarantees excellent drying results with low operating costs.
The KOCH dew point control
Dew point controlled granulate drying saves up to 40% energy
The patented KOCH ECO system control unit
Our patented system control for material-friendly and energy-saving pellet drying
With dry air drying without dew point control, the desiccant containers alternate in fixed cycles during dehumidification and regeneration. The throughput quantities and the moisture content of the material to be dried are not taken into account.
KOCH desiccant dryers with dew point control, on the other hand, work depending on the dew point and therefore save considerably more energy. As soon as a desiccant reaches the dew point limit of -30°C, the system switches to a fresh, regenerated desiccant container. This means that the drying process adapts to the material: the switchover cycles are shorter for very moist granulate and correspondingly longer for granulate with a low moisture content.
The advantage of dew point-controlled drying is obvious: high energy savings and consistent quality of the end product.
Our ECO system control guarantees that hygroscopic materials such as PA, PC, LCP, POM etc. are not overdried:
During dry air drying, the material in the storage containers is dried to "the residual moisture required for processing". If little or no material is removed from a container, further drying can lead to overdrying and material damage.
The KOCH ÖKO system control prevents this!
If the temperatures in the upper area of the container reach a specified value, the ÖKO system control automatically removes this container from the drying cycle. The container is only switched on again when granulate is removed or the dwell time is exceeded.
Features:
- Your material will not be overdried.
- You can access pre-dried granules at any time.
- They save energy, and not insignificantly at that.
Other advantageous properties:
- Regulation of the required air volume for each individual drying container
- Control of the defined air volume - independent of filling quantity and material shape
- The exact amount of dry air required always flows through the container
- Optionally with automatic load adjustment