CVF-1000W-2P Water-Cooled Vegetable Vacuum Cooler — 2 pallets, 800–1000 kg/batch, 30–40 min down to 0–10°C

Leafy vegetables come out of the field carrying field heat. Left stacked at ambient temperature, they start yellowing and wilting within hours. A vegetable vacuum cooler works by letting water boil under low pressure: as the chamber pumps down toward 600 Pa, water’s boiling point drops below 10°C, moisture evaporates from the produce surface, and the whole batch cools at the same time. We have delivered this same 2-pallet, 1000 kg class to an Iranian distributor (Bitzer CSH6563 + Busch RD0360A) and to a Canadian mushroom grower with a split-type unit on 600V/60Hz power built to the local grid.

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Product Overview

Three things it does well:

1. 2 pallets, 800–1000 kg per batch — roll in two standard pallets, finish a cycle in 30–40 minutes; at 10 batches a day that is 8–10 tons of daily throughput
2. Water-cooled condensing — lower condensing temperature than air cooling, steadier compressor operation; suits farms in hot regions that install indoors or under shade
3. ≤600 Pa ultimate vacuum and 0–10°C final temperature — leafy greens, mushrooms, berries and cut flowers all lose their field heat, with moisture loss held to 1–2%

Technical Specifications

Item	Specification
Model	CVF-1000W-2P
Chamber volume	8 m³ (vacuum chamber internal L2.6×W1.4×H2.2 m, painted carbon steel)
Capacity per cycle	800–1000 kg (2 standard pallets)
Cycle time	30–40 minutes
Refrigeration capacity	82.6 kW (71,000 kcal/h)
Running power	33.95 kW (running current 68 A)
Compressor	Bitzer 6583-50Y, 25.5 kW
Refrigerant	R134a
Vacuum pump	Busch RA302 / Leybold SV300, 5.5 kW
Cooling tower & pump power	2.95 kW
Ultimate vacuum	≤600 Pa
Final produce temperature	0–10°C
Power supply	400V/50Hz/3P (60Hz versions built for export markets)
Max running current	86 A (200 A breaker recommended; compressor starting current 218 A)
Total weight	Complete unit — frame, vacuum chamber, vacuum pump, full refrigeration system — approx. 7800 kg
Overall dimensions	L5700×W2200×H2600 mm

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Core Components

Component	Brand / Origin	Notes
Refrigeration system	Bitzer (Germany)	25.5 kW compressor with oil-level protection
Vacuum system	Busch / Leybold (Germany)	5.5 kW rotary vane pump for non-condensable gases
Condensing system	United (Guangzhou)	Water-cooled condenser + cooling tower, 2.95 kW
Moisture trap	Dongguan (in-house)	Evaporator coil at -10 to -5°C condenses water vapor and protects the vacuum pump
PLC control	LS (Korea)	Automatic vacuum / cooling / hold cycles
HMI	Weinview (Taiwan)	Touchscreen for setpoint and cycle settings
Vacuum chamber	Guangdong	Painted carbon steel with anti-rust interior
Door	Guangdong	Hydraulic door
Temperature sensing	LS (Korea)	Probe-type sensors for core produce temperature

Optional Configurations

Option	Configuration change	Best for
EU-spec water-cooled version	84.8 kW capacity, Hanbell 30.7 kW compressor, Leybold 5.5 kW pump, up to 1000–1200 kg, 15–30 min cycle	Shorter cycles, larger budget
Evaporative-cooled version (CVF-1000E-2P)	Bitzer CSH6553 34 kW, 200 kW heat rejection, 89.6 kW capacity, ambient to 2°C in 30 min	Sites with limited water or no cooling tower space
Air-cooled version (CVF-1000A-2P)	Air-cooled condenser, no cooling tower	Sites without a water source
Export customization	600V/60Hz (Canada), 380V/50Hz with R404A (Middle East) built to local grid and climate	Export projects
Stainless chamber	Stainless steel inner walls	High-moisture or corrosive produce

Data reflects standard configuration; final specs are confirmed per customized proposal.

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Product Advantages

Cooling speed

Low-pressure evaporation pulls field heat out of the whole batch at once — not the outside-in soak of a cold room. 30–40 minutes per batch means produce is cold-room or truck ready the same day it is harvested.

Vacuum system

Busch/Leybold rotary vane pumps handle the non-condensable gases while the moisture trap condenses water vapor first, so the pump stays loaded and oil-clean. Ultimate vacuum ≤600 Pa drops water’s boiling point low enough that even produce cores reach 0–10°C.

Build quality

8 m³ painted carbon steel chamber with anti-rust interior, hydraulic door, 2-pallet rail loading. Compressors, pump set and controls are grouped on one frame — on-site work is just power and water.

Configuration flexibility

Water, air or evaporative condensing; power supply built to the destination grid; compressor options include Bitzer or Hanbell. Customers match budget and site conditions.

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Suitable Produce

Category	Typical items	Result
Leafy greens	Lettuce, spinach, bok choy, Chinese kale	0–10°C in 30–40 min, 1–2% moisture loss
Brassicas	Broccoli, cauliflower	Even cooling through the head
Mushrooms	Button mushrooms, enoki, shiitake	Prevents cap opening and browning (our Canadian mushroom project used this class, split type)
Berries	Strawberry, blueberry	Fast field-heat removal, longer shelf life
Cut flowers	Roses, lilies	Slows opening and water loss
Stems & pods	Asparagus, sweet corn, peas	Field pre-cooling ahead of cold storage

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Delivered Projects

Customer	Country	Application
Iranian distributor	Iran	2-pallet 1000 kg cooler, Bitzer CSH6563 + Busch RD0360A, R404A refrigerant
Mushroom grower, Mr. Zhang	Canada	Split-type mushroom pre-cooler, 600V/60Hz/3P, PT100 probe sensors
Beijing Huaixiang	China	CVF-1000-2P refrigeration system, R404A
Lanzhou Wangwei	China	Premium pre-cooler configuration
Yunnan Driscoll’s grower	China	Berry field pre-cooling, 2-pallet configuration
Hubei Mr. Zou	China	R404A refrigeration system
Neijiang, Sichuan Mr. Tang	China	Cost-optimized 2-pallet cooler
Qingyuan Mr. Wu	China	Split-type 2-pallet cooler

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FAQ

Q: How much produce per batch, and how long to reach temperature? A: Two standard pallets, 800–1000 kg, down to 0–10°C in 30–40 minutes. Loading pattern matters — pallets packed evenly and openly cool faster.

Q: How much moisture is lost — will the produce wilt? A: Typical moisture loss for vacuum pre-cooling is 1–2%. What evaporates is a small fraction of the water naturally on the produce surface, and customers report no visible effect on appearance; a light misting before loading compensates further.

Q: Water-cooled or air-cooled? A: With a water source and indoor/shaded installation, choose water-cooled — lower condensing temperature, steadier compressor operation. No water on site? Take the air-cooled version (CVF-1000A-2P) and skip the cooling tower.

Q: Can pre-packed produce go in the chamber? A: Vented crates and turnover boxes are fine. Vacuum cooling relies on water vapor escaping, so sealed bags will not cool — vent them or leave them open. Modified-atmosphere bags go on after cooling.

Q: Is it 380V? Can you build for export? A: Standard is 400V/50Hz/3P. We build to the destination grid — we have delivered 600V/60Hz/3P for Canada and 380V/50Hz with R404A for the Middle East.

Q: What does installation require? A: Level concrete floor, 400V 3-phase power, make-up water for the cooling tower. The unit ships complete; we guide positioning and wiring and commission it through your first batch.

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Installation Requirements

Customer provides	Yuanxian provides
Level concrete foundation and site space (5.7×2.2 m footprint, plus door and pallet access)	Complete shipment, positioning guidance
400V/50Hz/3P power (200 A breaker recommended)	Wiring, commissioning, vacuum and cooling tests
Cooling tower make-up water and drainage	Operator training, first-batch trial
Pallets and crates	Manuals and consumables list

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After-Sales Service

One-year warranty on the complete unit. Spare parts for core components — compressor, vacuum pump — are supplied for the machine’s lifetime. Remote video diagnosis plus on-site service in key regions per contract terms. Each shipment includes a tool kit, spare seals and the operating manual.

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Buying Advice

Farms shipping up to 5 tons a day where two pallets per batch is enough will find this class the right fit. For higher volume, look at the CVF-2000-4P (4 pallets). No water on site — go air-cooled. Need shorter cycles — the EU-spec water-cooled version runs 15–30 minutes at up to 1000–1200 kg. Send us your produce, daily volume and site conditions and we will put together a configuration and costing.

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【SEO Info - English】

SEO Title: CVF-1000W-2P Water-Cooled Vacuum Cooler 2-Pallet 1000kg Vegetable Pre-Cooling
Meta Description: CVF-1000W-2P water-cooled vegetable vacuum cooler: 2 pallets, 800–1000 kg per batch, field heat removed in 30–40 minutes down to 0–10°C, ultimate vacuum ≤600 Pa, Bitzer compressor + Busch/Leybold vacuum pump for farms and packhouses.
Keywords: vegetable vacuum cooler, water-cooled vacuum cooler, 2 pallet vacuum pre-cooler, CVF-1000W-2P, vacuum precooling, leafy greens cooling, farm pre-cooling, Bitzer compressor
H1 Tag: CVF-1000W-2P Water-Cooled Vegetable Vacuum Cooler — 2 Pallets, 800–1000 kg/batch, 30–40 min to 0–10°C
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Internal Links: https://www.vacuum-fresh.com/en/vacuum-cooler

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