In off-grid homes, marine vessels, recreational vehicles, and remote field stations, a dependable ice supply often requires diesel generators, grid power, or expensive propane refrigeration. The Solar Ice Maker line from FOSSIL eliminates those dependencies by combining high-efficiency photovoltaic panels, deep-cycle battery storage, and DC variable-speed compressor technology. This guide provides detailed specifications, installation guidance, and answers to common questions so you can select the correct model for your cooling load and site conditions.
FOSSIL manufactures three core Solar Ice Maker models: the SIM-120, SIM-240, and SIM-500. Each unit is designed for silent operation, low maintenance, and consistent ice production in ambient temperatures up to 45°C. All models use food-grade stainless steel evaporators, insulated storage bins, and MPPT charge controllers to optimize energy harvest from solar arrays. The following sections break down each parameter in detail.
Our Solar Ice Maker series includes products such as the Upright Solar Ice Maker and Solar Ice Block Maker, etc.
FOSSIL builds every Solar Ice Maker with a direct current architecture to minimize conversion losses. The PV array connects to the MPPT charge controller, which charges the battery bank and powers the compressor simultaneously. During full sunlight, the system prioritizes compressor operation so ice production stays at maximum output while surplus energy charges the battery. At night or during cloudy periods, the battery supplies the compressor and control board.
The evaporator is a food-grade stainless steel plate with a Teflon non-stick coating. Water flows over the plate in a thin film, which shortens freeze time and creates clear, dense ice cubes. A hot gas bypass valve releases the cubes during the harvest cycle without mechanical scrapers, reducing wear and energy use. The storage bin is insulated with 35–45 mm of polyurethane foam, depending on the model, and includes a drain port for meltwater.
All electrical connections use weatherproof Deutsch connectors or IP-rated junction boxes. The control panel includes LED indicators for solar input, battery state of charge, ice level, and fault codes. A low-voltage disconnect protects the battery from over-discharge, and a high-temperature cutout prevents compressor overheating in extreme climates.
