CVF-3000-6P Fruit and Vegetable Vacuum Precooler — 6-Pallet Large-Capacity, Approx. 3000kg/Batch

CVF-3000-6P is a Yuanxian six-pallet vegetable vacuum pre-cooler: approximately 3000kg per batch, reducing ambient produce (2530°C) to 010°C in 30~40 minutes, ultimate vacuum ≤600Pa, equipped with 3 rotary vane vacuum pumps, specific condensing method (A / W / E) confirmed per order.

Where it is used

For centralized pre-cooling at origin: 6 standard pallets per load, suitable for origin purchasing stations, planting cooperatives and planting bases with larger daily throughput.

For smaller daily throughput or sites requiring zoning, see the four-pallet models in the vacuum pre-cooler series.

How cooling works

Water boils at 100°C at atmospheric pressure; when the chamber is pumped below 600Pa, the boiling point of water approaches 0°C. Moisture on the produce surface begins to evaporate, and each 1kg of water evaporated carries away approximately 2500kJ of heat. The heat is drawn directly from the produce itself, so cooling proceeds from surface to core and is uniform throughout the chamber.

Technical parameters

Quick specifications

Full parameters

Condensing method (difference between model suffixes A / W / E)

The specific condensing method for this model is confirmed per order.

Main configuration list

Why choose CVF-3000-6P

One cycle loads 6 pallets Approximately 3000kg per batch; loading and unloading are done with whole pallets, no unpacking or basket changing, simpler manual handling.

Uniform throughout the chamber, no cold spots Vacuum pre-cooling removes heat through surface moisture evaporation; temperature is consistent across all layers in the chamber, with no temperature difference where the surface is already cold while the core is still warm.

No defrosting process required One cycle is 30~40 minutes; there is no frost formation and defrosting cycle in the chamber. If the cycle time is noticeably longer during operation, first check chamber sealing — door gasket, valve seals, chamber welds — rather than adding a defrost program.

Vacuum system matched to target pressure The pre-cooling target vacuum level is ≤600Pa; rotary vane pumps are sufficient, no Roots pump is fitted. A Roots pump typically only provides noticeable gain after the chamber pressure is first reduced below 1kPa by the backing pump, and its effect in the 600Pa range is limited while adding an extra maintenance point. Only processes requiring lower pressure (such as freeze-drying) are fitted with a Roots pump.

FAQ

How much can be loaded at once? 6 standard pallets (1200×800mm), approximately 3000kg for leafy vegetables. Stacking density varies by product category; actual loading capacity is confirmed per order.

How long is one cycle? 30~40 minutes for leafy vegetables. Categories with higher loading density and moisture content take longer.

What is the weight loss rate? Approximately 23%, about 6090kg for 3000kg of leafy vegetables. For products sensitive to weight loss, the final pressure setting can be adjusted to reduce weight loss.

How much electrical capacity should be reserved? 3P-380V-50Hz, full-load operating current approximately 187A, a 250A circuit breaker is recommended.

Why is no Roots pump fitted? The target vacuum level for pre-cooling is ≤600Pa; a Roots pump generally only provides gain after the backing pump has drawn the chamber pressure below 1kPa, its effect in the 600Pa range is limited, and it adds another failure point.

To configure a solution based on your product category and daily throughput, contact us.