Drying & Sterilization Tech
Industrial Microwave Tunnel for Spices & Herbs
Perfect for Chili, Tea, Flowers, and Ginger. Our volumetric heating technology dries products rapidly from the inside out, preserving vibrant colors and essential aromas while eliminating bacteria.
Max Color Retention
Instant Sterilization
Fast Drying Speed
Inside-Out Heating:
The Microwave Advantage
Traditional dryers rely on Heat Conduction (Hot Air), which dries the surface first. This often traps moisture inside (case hardening) or damages the product’s color due to long heat exposure.
Loyal’s Industrial Microwave uses Volumetric Heating. The electromagnetic waves penetrate the material, causing water molecules to vibrate 2.45 billion times per second.
This friction generates heat from the center outwards. Moisture is pushed to the surface and evaporated instantly. The result? Drying times are reduced from hours to minutes, preserving the fresh color and active ingredients of your product.
Rapid Processing
Microwave energy requires no pre-heating or heat transfer medium. Energy acts directly on the material, reducing drying time by up to 80% compared to conventional ovens.
Premium Quality
Short heating times at lower temperatures mean Herbs stay green, Insects remain puffed and golden, and Nutrients are retained.
Dual Function
Simultaneous drying and Sterilization. The thermal and non-thermal effects of microwaves kill bacteria, mold, and insect eggs, extending shelf life.
Versatile Material Processing
From delicate flowers to tough roots. Our microwave technology preserves the Aroma, Color, and Shape of high-value agricultural products.
Spices & Seasonings
Chili, Pepper & Spices
Spices grown in soil (like Black Pepper and Ginger) often carry bacteria. Microwave drying offers simultaneous Sterilization and drying. It kills Salmonella and E. coli while locking in the volatile oils that give spices their signature heat and aroma.
- Sterilization: Meets strict export hygiene standards.
- Aroma Retention: Fast drying prevents loss of essential oils.
- Vibrant Color: Chilies stay bright red, maximizing market value.
Tea & Green Herbs
Tea Leaves, Moringa & Herbs
For green leafy products, speed is everything. Microwave energy performs “Green Fixation” (De-enzyming) in seconds. This stops oxidation immediately, ensuring your Tea, Moringa, or Parsley retains a natural, emerald green color instead of turning brown.
- Green Fixation: Instantly deactivates enzymes to stop browning.
- Uniform Drying: No wet spots in the center of leaf piles.
- Nutrient Safe: Low temperature preserves vitamins and antioxidants.
Flowers & Whole Ingredients
Rose Buds & Whole Spices
Delicate items like Rose Buds or whole Star Anise can shrivel or collapse in hot air dryers. Microwave’s volumetric heating creates internal pressure, helping flowers maintain their 3D shape and plumpness for a premium appearance.
- Shape Integrity: Flowers stay plump, not shriveled.
- Fast Rehydration: Dried products reabsorb water quickly when brewed.
- Efficiency: Penetrates thick items (like Ginger roots) efficiently.
Continuous Drying Process
A fully automated tunnel system. From uniform feeding to rapid volumetric heating and final cooling, the process is continuous and efficient.
01
Uniform Feeding
Material is spread onto the PTFE belt via a distributor. Uniform thickness (usually 2-5cm) is critical for even drying results.
02
Volumetric Heating
Magnetrons emit 2450 MHz microwaves. The waves penetrate the material, vibrating water molecules to generate instant internal heat.
03
Moisture Exhaust
As water turns to steam, top-mounted Dehumidification Fans rapidly extract the vapor from the tunnel to prevent re-condensation.
04
Air Cooling
Since the product is hot throughout, a cooling section at the end reduces temperature to ambient levels before discharge to prevent burning.
05
Output
The dried, sterilized product is discharged. It is now shelf-stable, retains its original color, and is ready for packaging or grinding.
Core Component Breakdown
Built for 24/7 industrial operation. We use top-tier electrical components and rigorous safety shielding.
Power Source
Industrial Magnetrons
The heart of the machine. We utilize high-quality industrial magnetrons (Samsung/Panasonic/Witol) with Water-Cooling Systems. This ensures stable power output and long lifespan even during continuous 24-hour operation, unlike air-cooled home units.
1.05kW per Unit
Water-Cooled Jacket
2450MHz Frequency
Overheat Protection
Safety First
Leakage Suppressor
Safety is paramount. The inlet and outlet of the tunnel are equipped with specialized Choke Suppressors. These metal structures reflect and absorb escaping microwaves, ensuring leakage is strictly below international safety standards (< 5mW/cm²).
Zero Leakage Design
CE Certified Safety
Double Curtain Shield
Worker Safe
Precise Control
Smart PLC System
Full control at your fingertips. The Omron/Siemens PLC allows you to adjust conveyor speed and microwave power density. Integrated Non-contact Infrared Thermometers monitor product temperature in real-time to prevent overheating or burning.
Touch Screen Interface
Real-time Temp Monitor
Modular Power Control
Fault Alarm System
Technical Specifications
Microwave capacity is customizable. We calculate the required power based on how much water needs to be evaporated per hour.
| Model | Microwave Power | Dehydration Capacity* | Belt Width | Dimensions (L*W*H) |
|---|---|---|---|---|
| LY-10 | 10 kW | ~10 kg Water/h | 600 mm | 6.5 x 1.1 x 1.7 m |
| LY-30 | 30 kW | ~30 kg Water/h | 800 mm | 10.5 x 1.3 x 1.7 m |
| LY-60 | 60 kW | ~60 kg Water/h | 1000 mm | 13.5 x 1.6 x 1.7 m |
| LY-100 | 100 kW | ~100 kg Water/h | 1200 mm | 18.0 x 1.8 x 1.7 m |
How to Choose the Right Model?
Unlike standard ovens, microwave capacity is determined by Water Removal. As a rule of thumb, 1 kW of microwave energy can evaporate approximately 0.8 to 1.0 kg of water per hour.
Required Power (kW) ≈ Total Water to Remove (kg/h)
Not sure about your moisture content? Send us your Initial Moisture % and Target Moisture %, and we will calculate the exact machine size for you.
Get Free CalculationEfficiency = Profitability
Investing in microwave technology isn’t just about drying; it’s about upgrading your product quality to command a higher market price while drastically cutting processing time.
Hot Air / Sun Drying
Low Value Output
- Slow Process: Takes hours or days. Weather dependent (for sun drying) or high heat loss.
- Quality Loss: Surface hardening, oxidation, and browning due to long exposure to heat.
- High Energy Waste: Heats the air and the chamber walls before heating the product.
Microwave Tunnel
Premium Value Output
- Rapid Turnover: Dries in minutes. 100% weather independent continuous production.
- Premium Quality: “Puffing effect” keeps shape. Low temp preserves bright colors and nutrients.
- Direct Energy: Energy couples directly with water molecules. No wasted heat on air.
Speed Advantage
Reduce processing time by up to 80%. This allows for “Just-in-Time” production, reducing the need for massive storage of wet raw materials.
Higher Sale Price
Microwave-dried spices and flowers retain vibrant colors and rich aromas, selling for a premium compared to the faded, shriveled results from air dryers.
Energy Efficient
With an energy conversion efficiency of over 85%, microwave drying lowers your utility bills per kg of water removed compared to electric ovens.
Live Factory Installations
Explore our industrial microwave tunnels in operation across Spice Facilities, Herb Plantations, and Premium Flower Tea Processing Plants.
Client Success Stories
Feedback from our global partners on equipment quality and technical support.
“
The quality and craftsmanship of the equipment are excellent. It exceeded my expectations and it was a perfect transaction.
“
Your explanation was more complete than all the companies, even Fava and Pawan.
Engineering You Can Trust
We address the critical challenges of microwave processing—Safety, Uniformity, and Durability—with advanced engineering standards.
Strict Safety Standards
Worker safety is non-negotiable. Our specialized Choke Suppressors ensure microwave leakage is strictly kept below 5mW/cm², meeting CE and international safety regulations.
Uniform Field Design
We use CST Simulation Software to design the waveguide layout. This scientific approach eliminates “hot spots” and ensures the electromagnetic field is evenly distributed across the belt.
Water-Cooled Life
We refuse to use cheap air-cooled magnetrons. We install Water-Cooled Magnetrons (Samsung/Panasonic grade) which run cooler and last significantly longer in 24/7 industrial environments.
PLC Automation
Adjust power density instantly. Our PLC Control System allows you to save recipes for different materials (e.g., specific settings for Herbs vs. Insects) for consistent quality every batch.
Frequently Asked Questions
Answers to common questions regarding Safety, Efficiency, and Applications.
Is the radiation safe for workers?
Absolutely. The machine is designed with industrial Choke Suppressors at the inlet and outlet to prevent leakage. We guarantee microwave leakage is below 5mW/cm² (the international safety standard). It is completely safe to work alongside the machine.
Does microwave drying damage nutrients or color?
No. In fact, it preserves them better than traditional methods. Because the drying time is extremely short (minutes vs. hours) and the temperature is controlled, sensitive compounds like Chlorophyll (green color) and Vitamins are retained significantly better than in slow hot-air dryers.
Does it sterilize the product while drying?
Yes. Microwaves have a proven thermal and non-thermal biological effect. They effectively kill bacteria (E. coli, Salmonella), mold, and insect eggs during the drying process, extending the shelf life of your product without chemical additives.
Is it expensive to run compared to electric ovens?
Microwave drying is generally more energy-efficient. In a standard oven, you waste energy heating the air and the metal walls. In a microwave, energy couples directly with the water in the product. The energy conversion efficiency is very high.
Can I dry metal or plastic materials?
You cannot dry metal items as they reflect microwaves and cause arcing. Plastics vary; some are transparent to microwaves, while others may melt. This machine is best suited for Organic Materials (food, feed, wood) and specific Chemical Powders with high moisture content.
Unsure about your material?
We offer a Free Material Test. Send us a sample, and we will record a video of the drying process and send the dried sample back for your lab analysis.
Request Free Test