Advanced Microwave Continuous Peanut Roasting Machine

Detail

Applications of microwave roasting equipment

Microwave roasting equipment is widely used in nuts and seeds, grains and cereals, coffee and tea, snacks and pastries, Chinese herbs and herbs, tobacco and spices, etc., to meet the needs of all kinds of materials for roasting, ripening and quality improvement.

Features

1. Simultaneous internal and external heating for uniform roasting:

Microwaves directly act on material molecules, enabling simultaneous internal and external heating via molecular vibration. This avoids "external scorching with internal rawness" or "local over-drying" caused by heat conduction differences in traditional roasting (ovens, frying), ensuring uniform heating of each particle.

2. Rapid temperature rise, shortening roasting cycle:

Microwaves raise material temperature to 100-200℃ within minutes (traditional roasting takes tens of minutes). For example, peanut roasting takes 30-40 minutes traditionally but only 8-15 minutes with microwaves, greatly improving productivity.

3. Precise control of temperature and power:

Intelligent control system (PLC + touch screen) allows precise adjustment of microwave power (500W-10kW), roasting time (10s-30min), and material temperature, adapting to characteristics of different materials (e.g., coffee beans need gradient heating; nuts need constant temperature roasting).

4. Low-oxygen roasting to reduce oxidation:

Microwave roasting can be conducted in a closed cavity (with inert gas like nitrogen), reducing material contact with oxygen, minimizing oil oxidation (e.g., nut rancidity) and pigment degradation (e.g., grain browning), and extending product shelf life.

Advantages

1. High efficiency and energy saving, reducing costs:

Microwave thermal efficiency reaches 80%-90% (traditional electric ovens only 30%-50%, coal-fired frying even lower). No preheating is needed—equipment can be used immediately. Energy consumption per unit output is reduced by 40%-60%; short roasting time increases equipment turnover by 2-3 times, saving labor and time costs.

2. Retain nutrients and flavor, improving quality:

Short-term high-temperature roasting reduces damage to heat-sensitive components (vitamins, amino acids, volatile oils). For example, vitamin E retention in nuts after microwave roasting is 15%-20% higher than traditional frying. Meanwhile, uniform heating ensures consistent color (e.g., coffee bean color uniformity increases by 30%) and crisp texture without rawness.

3. Healthy and low-fat, meeting consumption trends:

Unlike traditional fried roasting, microwave roasting relies on moisture evaporation for puffing, significantly reducing oil addition (e.g., potato chip oil content can drop from 35% to below 15%), aligning with modern "low-fat, healthy" food consumption trends.

4. Easy operation, high automation:

Supports continuous production (with conveyor belt), realizing full-process automation of feeding, roasting, and discharging, reducing manual intervention. Presettable parameters (e.g., roasting programs for different nuts) ensure consistent quality across batches, reducing reliance on operator experience.

5. Clean and eco-friendly, easy maintenance:

Microwave roasting produces no smoke or exhaust gas (traditional coal/gas roasting generates large amounts of oil fume and CO₂), meeting environmental standards. The cavity is made of stainless steel, with easy cleaning of residual materials, reducing bacterial growth and maintenance costs.

Model YM-3~YM-500

Material SS304

Conveyor belt speed 0~10M/MIN Customized

Microwave Frequency 0~200C

Brand YEMAI