Generally grain are stored through natural ventilation, renew storage, and medicine suffocating. For long term storage, as much as 1-3% of loss to grains may caused by water content reduction, inset pest, and mildew accidents and for a grain depot with storage capacity of billions Jin (1 Jin equals to 0.5 Kilogram) will lose millions of yuan in value. However, the loss can be reduced considerably by adopting deepfreeze technology. Grain chiller can consecutively provide required chilling air of specail temperature and humidity for the granary to deepfreeze grains such as corns, paddy, wheat and seeds. With deepfreeze technology, economic and social benefits can be improved substantially by keeping the grain fresh. GL-Grains Chiller Features: Wide adjustment range for temperature and humidity, attainable controls and guarantees for grains quality. High adaptability: Normally run at environment temperature of -10°C-43°C, and remains normal running subject to great changes in humidity. Accurate intelligent control computer ensures simple operation. Under any environmental circumstances, the wind temperature at outlets remains a fluctuation of ±1°C, and the humidity keeps unchanged at a fixed value.