Wyma Hydro-Coolers quickly reduce the core temperature of fresh produce, extending shelf life while preserving flavor and appearance. Water is sprayed over a heat exchanger which is cooled to several degrees below freezing by refrigerant.
As the water passes over the heat exchanger, the water cools to a userset temperature.
Cooled water then floods down onto produce. Water is collected in a tank at the base of the Hydro-Cooler for recycling. Produce travels by conveyor through the Hydro-Cooler.
Produce can be partially or fully submerged in water. An outfeed elevator gently carries produce to the next stage in your line.
Features
- Quickly reduces core temperature of produce, extending shelf life and preserving flavor and appearance.
- Produce immersion improves heat transfer efficiency.
- Variable speed-controlled conveyor allows for controlled cooling time.
- Gooseneck elevator gently delivers produce to next stage.
- Modular belt on conveyor allows water to fall through to the base of the tank for recycling.
Quickly reduces core temperature of produce | Extends shelf-life and preserves flavour and appearance. | |
Produce immersion* | Improves heat transfer efficiency. Sensor available to detect water level. | |
A | Variable speed controlled conveyor | Allows you to control cooling time. |
B | Stainless steel tank | Strong and cleanable. |
C | Rotary Filter Unit* | Provides continuous water filtration to prevent blockages. |
D | Gooseneck elevator* | Gently delivers produce to next stage. Extensions available*. |
E | Drain valves (two) | Allows tank to be drained of water. Automatic valves available*. |
F | Access hatches* | Full access for maintenance and cleaning. |
G | Water spray system | Cools produce and maintains optimum temperature. |
H | Integrated coils | No need for external heat exchanger. |
I | Modular belt on conveyor | Allows water to fall through to the base of the tank for recycling. Cleanable and serviceable. |
J | Integrated tank | Allows semi-immersed cooling. |
K | Equipment automation with touch screen | Smart, easy equipment control. |
Variable speed controlled elevator and pump | Allows full equipment control. | |
Gravity-aided belt tensioning | Reduces belt wear. |
* Optional

Wyma Mega-Tip Rotary Bin Tipper
Wyma Engineering (NZ) Ltd
Wyma's Mega-tip Rotary Box Tipper was custom designed for gentle tipping of very large boxs. It can tip boxes weighing up to 4.5t and measuring 3700mm wide (approx.).

Wyma Mini-Wet Hopper
Wyma Engineering (NZ) Ltd
Wyma's Mini Wet Hopper (for buffer storage) is great when you need in-line buffer storage and produce soak at the clean end of your line. It can also be used for chemical applications.

Wyma Wet Hopper
Wyma Engineering (NZ) Ltd
Wyma's Wet Hopper provides a gentle pre-washing system, to receive produce into washing and packing lines. The system comprises hopper storage, a floor conveyor, discharge elevator and can also include optional add-ons and/or customized modules for a tailored solution.

Wyma Clean Wet Hopper
Wyma Engineering (NZ) Ltd
Wyma's Clean Wet Hopper receives and stores produce in water prior to packaging, eliminating the need for boxes/bins. Flumes or conveyors gently carry produce to the bunker.