SJ-30H Commercial Food Freeze Dryer - 30-45 kg/batch

Is SJ-30H the right commercial food freeze dryer for my production?

Short answer: SJ-30H is designed for food businesses moving from trials into planned weekly production. Its 30-45 kg/batch reference fresh load and 2.95 m² usable tray area help start the comparison, but the final batch depends on product moisture, cut size or fill depth, kilograms per tray, pre-freezing, condenser water load, target moisture and the qualified cycle.

How should I decide whether SJ-30H is large enough?

Choose SJ-30H when batches are still handled by one operator or a small team, the product range is focused, and 30-45 kg of reference fresh material is enough for the weekly sales plan. It is the entry commercial H model; it should not be selected from fresh kilograms alone when the product is dense, oily, high in sugar or loaded in deep layers.

Capacity path: SJ-35H provides more tray area and a lower condenser-temperature specification. Move toward the FFD industrial range when carts, separate pre-freezing, fixed kg/day and factory line balance become the main questions.

How do fresh kilograms become daily saleable output?

Start with product solids rather than assuming the catalog fresh-load number becomes dry product. A useful early estimate is:

Dry solids = fresh load × (1 − initial moisture fraction)
Estimated finished mass = dry solids ÷ (1 − target final moisture fraction)
Estimated water removed = fresh load − estimated finished mass

Then add loading, evacuation, primary and secondary drying, unloading, defrost, cleaning, changeover and packaging. The practical output per day or week may be limited by pre-freezing, operator time or packaging before it is limited by the chamber.

How should energy consumption be compared?

Installed electrical load is for connection planning; it is not the same as average consumption. Ask for a subsystem load schedule and compare kWh/batch, kWh/kg of water removed and kWh/kg of saleable product. Include external pre-freezing, room HVAC and packaging when comparing complete workflows. Product moisture, ambient temperature, condenser load and cycle pressure can change the result.

What information produces a useful quotation?

• Product photos, composition, initial moisture, cut size or fill depth and target moisture/water activity.
• Fresh kilograms per batch and per day, planned batches per week, seasonal peak and finished-product target.
• Pre-freezing method and temperature, transfer time, kilograms per tray and expected cycle window.
• Voltage, phase, frequency, room dimensions, door access, ventilation, drainage and cleaning workflow.
• Packaging format, allowable time before sealing, allergen or odor changeover and traceability requirements.

Engineering and manufacturing support from China

SJ's freeze-drying engineering team in China has about 15 years of practical experience across laboratory, pilot, pharmaceutical and food equipment. SJ Scientific Limited coordinates international projects and contracts; Ningbo Sjia Instrument Co., Ltd. provides manufacturing and engineering support in China. A commercial H project can be reviewed through the agreed specification, component list, electrical requirements, factory inspection or video review, operating documents, packing scope and recommended spare parts before shipment.

The equipment photos below support model and application discussion. Application illustrations are labeled as illustrations; actual output and product quality must be confirmed from the buyer's material, loading and cycle.