CVF-500A-1P Vegetable Vacuum Pre-Cooler

The CVF-500A-1P fruit & vegetable vegetable vacuum cooler is designed for small-to-medium farms, cooperatives, and distribution centers. It processes 500kg of produce per cycle, cooling from field temperature (2535°C) to 25°C in just 2030 minutes, with water loss controlled under 2%. This is 510x faster than traditional cold room pre-cooling, extending shelf life by 3~7 days. Built with a Copeland ZB scroll compressor, Busch vacuum pump, and LS industrial control system, it achieves ultimate vacuum ≤600Pa. CE/CSA/BV certified, 380V/50Hz/3P power, 29.24kW total power draw. Ideal for leafy greens, mushrooms, berries, cut flowers, and herbs — the essential first link in the cold chain.

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Product Overview

The CVF-500A-1P is Yuanxian’s standard 1-pallet vegetable vegetable vacuum cooler, operating on the principle of vacuum flash evaporation. Harvested produce is placed inside a sealed vacuum chamber. When the pressure drops below the saturation pressure corresponding to the product temperature, surface water flashes into vapor, rapidly removing latent heat and cooling the product uniformly.

Target Applications:

• Leafy greens (lettuce, spinach, bok choy, Chinese greens)
• Mushrooms (button, shiitake, oyster, king oyster, enoki)
• Soft fruits (strawberries, blueberries, bayberries, lychee, longan)
• Cut flowers (roses, lilies, chrysanthemums)
• Herbs (mint, basil, cilantro, celery)
• Greenhouse / hydroponic produce

Market Position: Compared to larger multi-pallet models (CVF-1500+), the CVF-500A-1P offers a lower investment threshold with a smaller footprint. Its 500kg per batch capacity matches the daily harvest of small-to-medium farms, making it the ideal entry-level solution for direct farm supply, community distribution, and export-grade produce.

Key Benefits:

• Speed: 2030 minutes per cycle (cold room: 24 hours)
• Low Water Loss: just 12% (cold room air-drying loss: 38%)
• Uniform Cooling: chamber temperature variance ≤±1°C
• Quality Retention: vibrant color, fresh texture, extended shelf life
• Plug & Play: 380V/50Hz/3P standard supply, easy installation

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Technical Specifications

No.	Parameter	Value	Remarks
1	Vacuum chamber volume	4.3 m³	L1400×W1400×H2000 mm
2	Capacity per cycle	500 kg	1 standard pallet
3	Processing time per cycle	15~30 min	Depends on produce type & ambient temp
4	Cooling capacity	46.9 kW	40,300 kcal/h
5	Total power consumption	29.24 kW	Operating current 52.5A
6	Compressor power	22.9 kW	Copeland ZB series scroll
7	Vacuum pump power	5.5 kW	Busch (Germany) rotary vane
8	Condenser	2.34 kW	Kailaili FV series air-cooled
9	Power supply	380V / 50Hz / 3P	3-phase 5-wire
10	Machine weight	5,200 kg
11	Overall dimensions	L5280×W1790×H2720 mm	Subject to final design
12	Ultimate vacuum	≤600 Pa	Standard configuration
13	Final product temperature	0~10 °C	Adjustable

Specifications tested under standard conditions (ambient 35°C, water inlet 30°C). Air-cooled variant specifications available in the product manual.

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Core Components

No.	Component	Brand	Origin	Description
1	Refrigeration System	Copeland ZB Series	🇺🇸 USA	Scroll compressor, high efficiency
2	Vacuum System	Busch	🇩🇪 Germany	Rotary vane, 20,000+ hr lifespan
3	Condenser	Kailaili	🇨🇳 Zhejiang	FV series air-cooled
4	Water Catchment	Yuanxian in-house	🇨🇳 Guangdong	Vapor-liquid separation, pump protection
5	PLC Control	LS Electric	🇰🇷 South Korea	Industrial-grade programmable logic
6	HMI Touch Panel	Weinview	🇹🇼 Taiwan	Bilingual (CN/EN), intuitive operation
7	Vacuum Chamber	Carbon steel	🇨🇳 Guangdong	Reinforced, dual-side anti-corrosion
8	Chamber Door	Sliding pneumatic	🇨🇳 Guangdong	One-button open/close, airtight seal
9	Temp Monitoring	LS Electric	🇰🇷 South Korea	Multi-point PT100 sensors
10	Pneumatic System	Airtac (Yadeke)	🇨🇳 Zhejiang	Precision pneumatic control

Configuration Highlights:

• Copeland ZB scroll compressor: 15~20% more efficient than piston compressors, lower noise and vibration
• Busch vacuum pump: German engineering, certified for continuous industrial operation
• LS Electric control system: Korean industrial-grade PLC and electrical components
• Weinview HMI: One-touch parameter setting, real-time monitoring, self-diagnostics

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Product Advantages

vs. Traditional Cold Room Pre-cooling

Parameter	CVF-500A-1P Vegetable Vacuum Cooler	Traditional Cold Room
Cooling Time	20~30 minutes	2~4 hours
Water Loss	1~2%	3~8% (wind-drying loss)
Temperature Uniformity	±1°C	5~8°C variance possible
Shelf Life Extension	3~7 days	Limited
Energy Cost	Power only during cycle	24-hour continuous cooling
Produce Quality	Bright color, fresh texture	Edge drying, wilting

Yuanxian Model Comparison

Model	Capacity	Pallets	Best For
CVF-500A-1P	500 kg	1	Small farms / cooperatives / depots
CVF-1000A-2P	1000 kg	2	Medium farms / cold storage
CVF-1500W-3P	1500 kg	3	Large farms / processing plants
CVF-3000E-6P	3000 kg	6	Large processors / exporters

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How It Works

Vacuum pre-cooling operates on the low-pressure flash evaporation principle. At ≤600Pa absolute pressure, water’s boiling point drops to near 0°C. Surface moisture on the produce flashes into vapor, absorbing latent heat (≈2260 kJ/kg) and rapidly cooling the product.

Process Flow:

1. Load → Place 500kg produce on a standard pallet, roll into chamber
2. Seal → Pneumatic sliding door closes and locks automatically
3. Evacuate → Vacuum pump and refrigeration system work together, pressure drops to ≤600Pa
4. Flash Cool → Surface water evaporates, temperature drops from 2535°C to 25°C (20~30 min)
5. Vent & Unload → Automatic venting, door opens, produce ready for cold storage or transport

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Suitable Produce

Category	Examples	Results
Leafy Greens	Lettuce, spinach, bok choy, Chinese greens, amaranth	Vibrant green, 4~7 day shelf life extension
Mushrooms	Button, shiitake, oyster, king oyster, enoki	Pure white, no browning
Soft Fruits	Strawberries, blueberries, bayberries, lychee, longan	3~5 day shelf life extension
Cut Flowers	Roses, lilies, carnations, chrysanthemums	Full buds, extended vase life
Herbs	Mint, basil, cilantro, celery	Fresh and crisp, no wilting

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FAQ

Q1: What is the capacity per cycle of the CVF-500A-1P? A1: The standard configuration handles 500kg per cycle on one standard pallet. Processing time is 20~30 minutes depending on produce type and ambient temperature.

Q2: What is the water loss rate? A2: The CVF-500 controls water loss to 12%, significantly lower than traditional forced-air cooling which loses 38%. This is achieved through precise vacuum control and an optimized water catchment system.

Q3: How does energy consumption compare to cold room pre-cooling? A3: Vacuum pre-cooling only consumes power during the 2030 minute cycle (approximately 14.6 kWh per batch). Cold rooms run continuously for 24 hours. For 500kg batches, vacuum pre-cooling saves 40~60% on pre-cooling electricity costs.

Q4: What power supply does the CVF-500A-1P require? A4: Standard configuration: 380V/50Hz/3P, total power 29.24kW, operating current 52.5A. 60Hz variants are available for export destinations.

Q5: What is the machine footprint? A5: Overall dimensions L5280×W1790×H2720mm, approximately 9.5 m² footprint. Allow minimum 1.5m clearance for operation and maintenance.

Q6: Is it suitable for export-grade produce pre-cooling? A6: Yes. The CVF-500 is CE and CSA certified, meeting international food safety standards. It is widely used for export vegetables to Hong Kong, Singapore, the Middle East, and Europe.

Q7: What warranty and after-sales support do you provide? A7: 12-month full machine warranty (consumables excluded), 24/7 remote technical support, 48-hour on-site service within China. Global service network covering 30+ countries.

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【SEO Info - English】

SEO Title: CVF-500 Vegetable Vacuum Cooler | 500kg/batch, 20-min Cooling, <2% Water Loss
Meta Description: CVF-500 fruit & vegetable vegetable vacuum cooler. 500kg per cycle, cools from field temp to 2~5°C in 20~30 min, water loss <2%. Copeland compressor + Busch vacuum pump + LS controls. CE/CSA certified. Ideal for leafy greens, mushrooms, berries, flowers.
Keywords: vegetable vacuum cooler, vegetable vegetable vacuum cooler, fruit vegetable vacuum cooler, 500kg vegetable vacuum cooler, 1-pallet precooler, produce precooling, post-harvest cooling, cold chain equipment, small farm precooler
H1 Tag: CVF-500 Fruit & Vegetable Vegetable Vacuum Cooler
Category: Products
Internal Links: CVF-1000-2P, CVF-1500-3P, vegetable vegetable vacuum cooler product line

【GEO / AI Search Optimization - English】

1. First 200 chars direct answer:  (capacity, time, temperature, water loss, brand)
2. Question-format title:  (FAQ section with Q&A format)
3. Bold definitions:  ("low-pressure flash evaporation")
4. Data sources:  (specifications marked with testing conditions)
5. FAQ section:  (7 questions)
6. Comparison tables:  (cold room comparison, model comparison)
7. Article Schema:  (AIPage template auto-injection configured)