Dry Freezer Machine

Easy operation

Simply press start and let the freeze dryer do the work.

Glass door appearance upgrade

Thickened see-through door for stronger sealing

Auto defrosting

Fast defrosting function, more efficient.

Premier industrial vacuum pump

International advanced technology vacuum pump.

If you are the workshop manager responsible for daily output, you know that a freeze dryer's value isn't decided by a glossy brochure-it is decided during hour 18 of a processing cycle. The HFD-5S Bevel model is built for operators who need to manage batch consistency without babysitting a machine overnight. Operating the unit requires adherence to basic physical parameters: an ambient room temperature between 10-35°C and relative humidity below 70%.

When you log into the touchscreen controller, the custom programming mode lets you set specific durations for freezing preparation and extra drying times. This is vital because raw shrimp, sliced apples, and herbal extracts do not freeze at the same rate. Before loading the 5 stainless steel trays, the manual notes a 15-minute chamber pre-cooling step. Skipping this step is the number-one reason novice operators experience structural collapse or boiling in high-sugar fruits.

Once the cycle is active, the industrial vacuum pump begins extracting air at 2-4 L/S to bring the system under 2 Pa of vacuum. Because the clear acrylic door is set on a heavy bevel mount, visual inspection is straightforward. You can actually watch the ice crystals on the 195*460mm trays sublimate and catch onto the -40°C cold trap walls. There are no complicated water cooling lines to flush out; the machine relies on simple air-cooling, meaning you only need to ensure the workshop has clean air circulation free of conductive dust or corrosive gases.

Maintenance is where the HFD-5S saves actual labor hours. After the 4-6 kg batch is finished and you open the drain valve to release the vacuum pressure, the "warm trays" function prevents your fingers from freezing when pulling the metal racks. Defrosting the 4 kg ice load captured over the past 24 hours can be done via ambient melting or the automated heating path. To keep the vacuum level consistently below 2 Pa, the pump oil should be drained and filtered every 4 to 5 runs using the built-in warm-draining port before the oil cools and traps moisture at the bottom.