CVF-500W-L Food Vacuum Rapid Cooler | 500kg/batch · 30–40 min · 90℃→4–10℃
Water-cooled low-temperature food vacuum rapid cooler, 500 kg per batch, cools 80–90℃ hot food to 4–10℃ in 30–40 min. Vacuum chamber volume 6.0 m³, cool...
CVF-500W-L is the 500 kg water-cooled model in the Yuanxian vacuum cooling line. It loads 500 kg of hot food per batch and cools from a 8090°C out-of-pot temperature down to 410°C in 30~40 minutes; vacuum chamber volume 6.0 m³, cooling capacity 95 kW, installed power 75 kW. In the model code, W indicates a water-cooled condenser and L indicates the low-temperature type.
Where it is used
| Scenario | Typical materials | Description |
|---|---|---|
| Central kitchen / group catering | Braised pork, stewed dishes, side dishes, soups | Whole batches go into the chamber after cooking, cooling no longer blocks the portioning line |
| Prepared dish production lines | Prepared meat products, toppings, soup dishes | 500 kg per run, aligned with the packaging line rhythm |
| Cooked and braised food processing | Braised beef, braised duck, roast chicken, pig trotters | High-volume continuous production, no waiting for cooling between batches |
| Meat and poultry processing | Roast chicken, roast duck, sausages, ham | Core and surface cool simultaneously, no cold-outside-hot-inside effect |
| Bakery plants | Toast, bread, mooncakes | Baked goods have low moisture content (15~45%), less moisture loss, crust less prone to cracking |
How cooling works
Vacuum cooling uses two stages, with two vacuum pumps dividing the work; the same pump is not used from start to finish.
| Step | Cooling range | Working components | Description |
|---|---|---|---|
| 1. High-humidity stage rough pumping | 90°C → approx. 50°C | Water ring pump works alone | The water ring pump withstands high temperature and high humidity; circulating water also acts as the first-stage moisture trap |
| 2. Low-temperature stage fine pumping | Approx. 50°C → 4~10°C | Rotary vane pump + moisture trap | The refrigeration system starts, the moisture trap condenses water vapor, and the rotary vane pump draws the chamber pressure down to ≤600 Pa |
| 3. Vacuum break and unloading | Target temperature reached | Shutdown and vacuum break | After pressure equalization, open the door and remove materials, then proceed to the next batch |
The moisture trap is a prerequisite for this process. Without it, water vapor would enter the rotary vane pump, emulsify the pump oil, and the vacuum level could not be maintained. Therefore all Yuanxian vacuum coolers come standard with a refrigeration system, and the moisture trap evaporation temperature is uniformly -10~-5°C.
For the capacity tiers and suffix meanings of the complete vacuum cooling line, see the product series page.
Technical parameters
Quick specifications:
| Item | Value |
|---|---|
| Model | CVF-500W-L |
| Batch load | 500 kg |
| Cycle time | 30~40 minutes |
| Discharge temperature | 4~10°C |
| Vacuum chamber volume | 6.0 m³ |
| Condensation method | Water-cooled |
Full parameters:
| Parameter | Value | Remarks |
|---|---|---|
| Model | CVF-500W-L | 500 kg tier, water-cooled condensation, low-temperature type |
| Batch load | 500 kg | — |
| Loading temperature | 80~90°C | Loaded immediately after cooking |
| Discharge temperature | 4~10°C | Low-temperature (L) type |
| Cycle time | 30~40 minutes | Including loading and vacuum break |
| Vacuum chamber volume | 6.0 m³ | Processing space specified by chamber volume |
| Cooling capacity | 95 kW | — |
| Installed power | 75 kW | — |
| Compressor | 2 × Copeland scroll compressor ZB130KQE-TFD, parallel; single unit @-5°C/40°C approx. 44 kW | — |
| Moisture trap | 20 m², Yuanxian self-manufactured, hot-dip galvanized iron pipe, dual liquid supply and dual gas return | Evaporation temperature -10~-5°C |
| Vacuum pump | Water ring vacuum pump 2BV5131 (11 kW) + rotary vane vacuum pump (7.5 kW) | Two-stage |
| Condenser | Water-cooled shell-and-tube (Lianhe / Kaidi) | — |
| Condensing temperature | 40°C | — |
| Ultimate vacuum | ≤600 Pa | — |
| Refrigerant | R404A | — |
| Chamber material | 6mm 304 stainless steel plate welded, Q235B carbon steel channel outer frame | — |
| Chamber door | 304 stainless steel manual sliding door | — |
| Power supply | 3P-380V-50Hz | Export region voltage confirmed per order |
| Chamber internal dimensions | Confirmed per order | Related to loading and unloading method |
| Overall weight | Confirmed per order | Related to final configuration |
| Overall dimensions | Confirmed per order | Related to final configuration |
Main configuration list
| No. | Component | Configuration description |
|---|---|---|
| 1 | Compressor | 2 × Copeland scroll compressor ZB130KQE-TFD (380V/50Hz/3P) |
| 2 | Condenser | Water-cooled shell-and-tube (Lianhe / Kaidi) |
| 3 | Moisture trap | 20 m², Yuanxian self-manufactured, D25×1.0mm hot-dip galvanized iron pipe, dual liquid supply and dual gas return |
| 4 | Vacuum pump | Water ring vacuum pump 2BV5131 (11 kW) + rotary vane vacuum pump model 300 (7.5 kW) |
| 5 | Vacuum chamber | 6mm 304 stainless steel plate welded chamber + Q235B channel outer frame, volume 6.0 m³ |
| 6 | Chamber door and seal | 304 stainless steel manual sliding door, food-grade silicone sealing strip |
| 7 | Liquid receiver | Vertical liquid receiver with valve head |
| 8 | Valves | Expansion valve, filter drier, solenoid valve, high/low pressure switch (Danfoss series) |
| 9 | Electrical control system | PLC + touch screen, one-button start, vacuum and temperature monitoring, fault alarm, emergency stop switch |
| 10 | Safety protection | High pressure, low pressure, oil pressure, oil temperature, discharge temperature protection, main motor overload protection |
Why choose it
- One unit replaces a cooling line. 500 kg per batch, 6.0 m³ vacuum chamber, whole carts roll in and out, no need to wait for cooling in multiple rounds after high-volume cooking.
- Two pumps each handle one stage. The water ring pump tackles the high-humidity stage from 90°C to 50°C first, and the rotary vane pump only performs low-temperature fine pumping, so pump oil is less likely to emulsify, and oil change intervals and vacuum stability are more controllable.
- Dual compressors in parallel, cooling capacity applied on demand. Two Copeland scroll compressors in parallel configuration, moisture trap with dual liquid supply and dual gas return; if one unit fails, it can still run at reduced load without stopping the entire line.
- Refrigeration system included as standard. The 20 m² moisture trap condenses water vapor at -10~-5°C, water vapor cannot reach the pumps, chamber pressure stays stable at ≤600 Pa, and results are consistent between batches.
FAQ
How much can CVF-500W-L hold per batch, and how long does it take?
Batch load 500 kg, cycle time 30~40 minutes, including loading, vacuum pumping, cooling and vacuum break unloading. Loading and unloading use carts pushed in and out as a whole; the loading method is confirmed per order.
The discharge temperature is 4~10°C, why not lower?
The discharge temperature range of the low-temperature (L) type is 4~10°C. The vacuum cooling stage only needs to bring the temperature close to cold storage temperature; the remaining temperature difference is left to the cold storage for natural equalization, which means less moisture loss and less loss of texture. Scenarios requiring a deeper final temperature are custom low-temperature working conditions confirmed per order.
How is cooling water configured?
The equipment side requires circulating cooling water and a cooling tower, with condensing temperature designed at 40°C. On-site circulating pump flow rate, inlet water temperature and cooling tower capacity are calculated item by item during the solution stage according to local summer conditions; inlet water temperature is recommended to be controlled within 32°C.
Are there requirements for material thickness?
Yes. To bring the food core temperature to target within the set time, single-layer material thickness is recommended to be controlled within 2.5 cm; whole large pieces are confirmed separately per order for placement method and time.
How to choose between this and CVF-300W-L?
CVF-300W-L has a batch load of 300 kg, vacuum chamber volume 3.2 m³, cycle time 2535 minutes, discharge temperature 08°C, cooling capacity 60 kW, installed power 55 kW. For daily throughput around 1 ton, choose CVF-300W-L; for more than two tons, consider the 500 kg tier. For more capacity tiers, see the food vacuum cooler series page.
To check daily throughput, cooling water conditions or cart dimensions, you can first contact us for a selection calculation, or visit the technical library for process descriptions of vacuum cooling.
Related technical guides
Vacuum Cooling Cycle Time: How Long from 90°C to 10°C?
A food vacuum chiller runs 15–30 minutes per cycle from 90°C to below 10°C. CVF-200 does 200 kg from 80°C to 0–8°C in 20–30 min; CVF-600 is quoted at 25 min.
Why Two-Stage Vacuum Cooling: Water Ring Pump vs Vane Pump
Food vacuum chillers load at 80–90°C: the ring pump takes 90°C to 50°C, then refrigeration plus the vane pump reach 0–10°C
Refrigeration System Design: Compressor Selection
Engineering guide to compressor selection for vacuum pre-cooling and rapid cooling systems, covering Bitzer
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