Product Overview
The CVD-1000 is an industrial-grade vacuum freeze dryer designed by vacuum-fresh for small to mid-size food processors, agricultural cooperatives, and pet food manufacturers. With 10m² of drying area and 100kg per batch processing capacity, it handles fruits, vegetables, mushrooms, meat, seafood, pet food, and functional ingredients.
The machine uses contact shelf heating with thermal oil circulation combined with a dual-stage vacuum pump system (rotary vane + Roots booster). Shelves operate across a -55°C to +120°C range with programmable multi-segment drying curves. Ultimate vacuum reaches <10 Pa, meeting the pressure and temperature requirements of most food freeze-drying processes.
Key components — refrigeration compressor (Inverto/Sabroe), vacuum pumps (Busch/Leybold + Roots), and control system (Siemens PLC + Weinview HMI) — are sourced from established brands. Assembly and testing are completed at the Yuanxian factory.
How Freeze Drying Works
| Phase | Temperature | Process |
|---|---|---|
| Pre-freezing | Ambient → -30°C | Material freezes in the drying chamber; water forms ice crystals |
| Primary Drying (Sublimation) | -30°C → +30°C | Vacuum drops to <10Pa; ice sublimates directly to vapor; vapor condenses on the cold trap |
| Secondary Drying (Desorption) | +30°C → +60°C | Temperature rises to remove bound water; target moisture content reached |
The entire process runs in a vacuum, oxygen-free environment with controlled temperature. The material does not oxidize, shrink, or deform. Upon rehydration, it retains original texture and nutritional profile.
Technical Specifications
Quick Reference
| Parameter | Value |
|---|---|
| Drying Area | 10 m² |
| Batch Capacity | 100 kg (wet material) |
| Cycle Time | 20–28 h |
| Shelf Temp Range | -55°C ~ +120°C |
| Ultimate Vacuum | <10 Pa |
| Power Supply | 380V / 50Hz / 3P |
Full Specifications
| Parameter | Specification |
|---|---|
| Model | CVD-1000 |
| Heating Method | Contact shelf heating (thermal oil circulation) |
| Drying Area | 10 m² |
| Shelf Layers | 10–14 (adjustable) |
| Shelf Material | Anodized aluminum (hollow profile) |
| Shelf Temp Uniformity | ±1°C |
| Tray Material | SUS304 stainless steel / aluminum (optional) |
| Refrigeration Compressor | Inverto / dual-stage Sabroe |
| Cooling Capacity | 13.9 kW |
| Refrigeration Power | 20.6 kW |
| Condenser Type | Air-cooled / water-cooled (optional) |
| Vacuum Pump | Rotary vane (Busch/Leybold) + Roots booster (ZJ150/ZJ600) |
| Vacuum Pump Power | 15 kW |
| Ultimate Vacuum | <10 Pa |
| Cold Trap Temp | -45°C ~ -65°C |
| Defrost Method | Hot water spray |
| Control System | Siemens PLC + Weinview 7" HMI touch screen |
| Heater Power | 15 kW (electric heating tank) |
| Total Installed Power | 55.2 kW |
| Power Supply | 380V / 50Hz / 3P |
| Cooling Water | Cooling tower (optional, water-cooled version) |
| Machine Weight | 2,800 kg |
| Dimensions (L×W×H) | 3,500×2,500×1,900 mm |
| Chamber Material | SUS304 stainless steel |
| Refrigerant | R404A |
| Options | End-point weighing, USB data export, MES interface |
Standard configuration parameters; customization available for specific material characteristics and capacity requirements.
Applications
| Category | Typical Products | Batch Size | Recommended Cycle |
|---|---|---|---|
| Fruits & Vegetables | Strawberries, mango, shiitake, okra | 100 kg | 22–28 h |
| Meat & Seafood | Chicken breast, beef dices, salmon | 80–100 kg | 20–26 h |
| Pet Food | Chicken liver, duck necks, chicken strips | 80–100 kg | 18–24 h |
| Functional Foods | Ginseng, goji berries, reishi slices | 60–80 kg | 24–30 h |
| Prepared/Bakery | Freeze-dried yogurt, coffee cubes | 80–100 kg | 20–24 h |
Typical production line:
Wash → Slice → Tray loading → Pre-freeze (-30°C) → CVD-1000 freeze drying → Packaging
- Daily capacity: 2–3 batches, 200–300 kg dried product (varies by moisture content)
Key Advantages
| Advantage | Description |
|---|---|
| Production-grade output | 10m² shelf area, 100kg/batch, 20–28h cycles — daily throughput for small/medium plants |
| Wide temperature range | -55°C to +120°C programmable, covering freezing, sublimation, and desorption |
| Branded components | Inverto/Sabroe compressors, Busch/Leybold pumps, Siemens PLC, Weinview HMI |
| Food-grade materials | SUS304 chamber + aluminum shelves, meets food hygiene standards |
| Smart controls | Multi-segment curve programming, touch screen, USB export, optional MES connection |
| Flexible configuration | Air or water-cooled, multiple vacuum pump options, end-point weighing available |
Main Component List
| Component | Model/Spec | Origin |
|---|---|---|
| Refrigeration Compressor | Inverto×2 | China |
| Air-cooled Condenser | Kaidi | Joint venture |
| Expansion Valve | Danfoss | Denmark |
| Solenoid/Ball Valve | Danfoss 1/2" | Denmark |
| Oil Separator | Fasco F-5603 | China |
| Filter Drier | Danfoss | Denmark |
| Vacuum Pump | Busch / Leybold | Germany / China |
| Roots Booster | ZJ150 / ZJ600 | China |
| PLC | Siemens S7-200CN | Germany |
| Touch Screen | Weinview 7" | Taiwan |
| Electrical Components | LS contactors/breakers | South Korea |
| Pneumatic System | AirTAC | Taiwan |
| Vacuum Gauge | Chengdu Zhenghua | China |
FAQ
Q1: What's the difference between CVD-1000 and CVD-100?
CVD-1000 is a 10m² industrial unit processing 100kg per batch. CVD-100 (1m²) is a commercial entry-level machine for 10–20kg batches. The CVD-1000 uses industrial-grade refrigeration, vacuum, and control systems rated for continuous operation.
Q2: What site conditions are required?
380V/50Hz/3P power supply, 55.2kW total load. Recommended installation footprint ≥5m × 4m. Water-cooled version requires a cooling tower or circulating cooling water supply.
Q3: Does the machine support multi-segment drying curves?
Yes. The Siemens PLC supports programmable multi-stage temperature control. Parameters for pre-freezing, primary drying, and secondary drying can be set independently and stored for recall.
Q4: What determines drying time?
Key factors: material moisture content, slice thickness, loading depth, and eutectic temperature. Fruits/vegetables typically run 22–28h, meat 20–26h. High-moisture or thick-cut materials require longer cycles.
Q5: Does it need specialized operators?
The machine runs fully automatic after startup — just load material and select the program. One operator familiar with freeze-drying parameters is recommended for quality monitoring and curve adjustment.
.png)
Yuanxian Vacuum-fresh
Vacuum preservation technology support!
Service hotline
WeChat contact
欢迎光临源鲜机械！
欢迎光临源鲜机械！