Laboratory freeze dryer FD-300F-CE

processfor the food industryfor the pharmaceutical industry

Product description
FD-300F-CE is a commercial food freeze dryer designed for lyophilization of food and heat-sensitive biological materials. Vacuum freeze drying preserves original biochemical characteristics and allows long-term storage; rehydration restores the product close to its pre-dried state. The machine is suitable for food, pharmaceuticals, biological samples and research applications where controlled sublimation is required.

Application

• Vegetables: edible mushrooms, garlic slices, chives, green onions, green beans, peas, cucumbers, sweet corn kernels, diced carrots, spinach, asparagus, wild greens.
• Aquatic products and meat: shellfish, shrimp, fish, beef, pork, chicken, lamb slices.
• Seasonings: garlic powder, ginger powder, spring onion powder, tomato, pepper.
• Instant drinks: coffee, tea, soup mixes, soy milk powder, milk powder.
• Convenience food: baby food, snacks, camping meals.
• Pharmaceuticals: tablets, reagents, powdered injections, fresh herbal medicines (ginseng, deer antler, wolfberry, Panax notoginseng).
• Materials and biological research: graphene materials, flowers, placenta, cell samples.

Specifications (table)
Freeze drying chamber
External material: Carbon steel (stainless steel optional)
External shape: box-type
Inner surface roughness: Ra ≤ 0.5 μm
Door opening direction: clockwise (top view)
Freeze drying door: organic glass

Shelves components
Shelf material: Aluminum (stainless steel optional)
Layer structure: internal welding without solder joints on upper/lower surfaces
Surface roughness: Ra ≤ 0.5 μm
Flatness: ≤ ±0.5 mm/m2
Layer spacing: 45 mm
Tray material: 304 stainless steel
Number of trays: 8
Effective shelf area: 3.0 m2
Minimum shelf temperature: ≤ -35 ℃ (no-load)
Shelf cooling time: ≤ 120 min (+20 ℃ to -35 ℃)
Shelf heating time: ≤ 20 min (-35 ℃ to +20 ℃)
Layer temperature deviation: ≤ ±1 ℃
Layer temperature range: -35 ℃ to +80 ℃

Cold trap
Cylinder material: SUS 304 stainless steel
Type: horizontal
Trap door: organic glass
Coil material: copper tube
Surface roughness: Ra ≤ 0.5 μm
Cold trap surface area: ≤ 1.5 m2
Ice condensation capacity: ≤ 40 kg (customizable)
Cold trap cooling rate: +20 ℃ → -55 ℃ within 60 minutes
Minimum cold trap temperature: ≤ -55 ℃ (no-load)
Defrosting method: electric heating defrosting

Freezing system
Compressor: Embraco fully enclosed piston compressor (imported)
Refrigerant: mixed low-temperature environmentally friendly refrigerant
Number of compressors: 1
Shelf cooling: indirect cooling (1 unit)
Cold trap cooling: direct cooling (1 unit)
Condenser: air-cooled
Protection: components from internationally recognized brands
Optional: cascade compressor for cold trap ≤ -80 ℃

Vacuum system
Double-stage rotary vane pump (high quality, China)
Quantity: 1
Maximum vacuum: ≤ 15 Pa
Evacuation time (chamber): atm → 15 Pa in < 5 minutes (dry conditions)
System leakage rate: ≤ 10 Pa·l/s
Vacuum probe and regulating valve: customizable

Control system
Control: single-chip controller
Touch screen: MCGS (Kunlun 7") or Siemens optional
Intermediate relay: customized
Air circuit breaker: Chint

Protection
Startup interlocks: machine starts only when safety conditions met
Electrical interlocks: logical control and protection functions
Motor protection: overload, overheat, phase-loss protection
Circulation protection: heating cycle protection
Product protection: heating cutoff on poor vacuum
Cold trap vacuum pump interlock: enabled

Other parameters
Power supply: single phase 220V
Installed power: 4.5 kW
Structure: integrated freeze drying
Sheet metal: 1.5 mm steel plate
Paint: imported environmentally friendly paint
Chassis/substrate: 5 mm steel plate
Temperature transmitter: imported brand
Packaging: plywood

Technical characteristics

• Model: FD-300F-CE
• SKU: FD-300f-CE
• Effective shelf area: 3.0 m2
• Number of shelf trays: 8 (304 stainless steel trays)
• Shelf min. temperature (no-load): ≤ -35 ℃
• Cold trap min. temperature (no-load): ≤ -55 ℃ (≤ -80 ℃ optional with cascade)
• Ice condensation capacity (standard): ≤ 40 kg (customizable)
• Maximum vacuum: ≤ 15 Pa
• Evacuation time (atm → 15 Pa): < 5 minutes (dry)
• Power supply: single phase 220V; Installed power: 4.5 kW
• Construction: carbon steel box-type, internal finish Ra ≤ 0.5 μm