Di'an Optoelectronics intelligent microwave & light wave integrated tea fixing machine adopts dual-core heating technology of microwave + light wave. The comparison is as follows:

Comparison Items	Traditional Drum Fixing	Steam Sterilization	Di'an Microwave & Light Wave Fixing
Heating Method	External Heat Conduction	Steam Conduction	Microwave Penetration + Light Wave Aroma Locking
Fixing Time	8-15 minutes	3-5 minutes	1.5-3 minutes
Temperature Uniformity	Poor, easy to burn tea leaves	Average	Synchronous uniform heating inside & outside
Chlorophyll Retention	Average	Good	≥85%
Aroma Performance	Pan-fried aroma	Mild & dull aroma	Fresh & rich aroma
Energy Saving	Average	High energy consumption	30% lower than similar equipment
Continuous Operation	Continuous workable	Continuous workable	Fully automatic tunnel type

No. Microwave fixing takes only 1/8 of the traditional process with relatively low temperature. The retention rate of vitamin C reaches over 85%, and the loss rate of amino acids is ≤12%. Meanwhile, microwave can break tea cell walls, making active ingredients easier to dissolve during brewing and improving rehydration performance.

DAWB series has a wide range of applications:

• Tea: Green tea, black tea, oolong tea, white tea, yellow tea, dark tea, Pu-erh tea
• Flower tea: Chrysanthemum, rose, honeysuckle, osmanthus, etc.
• Others: Dehydration & sterilization of Chinese herbal medicines, seasonings, grains, fruits and vegetables; seafood drying

Completely safe. The equipment strictly complies with national standard GB10436-89, with microwave leakage ≤5mw/cm². Multiple safety protections are equipped:

• Microwave door adopts track shielding gas spring structure for good sealing;
• Emergency stop button, guardrails and leakage protection device are equipped;
• Triple safety interlock switch, power cuts off automatically when the door is opened;
• Every unit passes strict leakage test before delivery.

Very easy to operate. It is equipped with intelligent frequency conversion control system and PLC touch screen human-machine interface. You can set fixing temperature, time and rotating speed with one click, which automatically matches requirements of different fresh tea leaves and moisture content. The whole process of feeding, fixing and discharging is fully automatic. Beginners can get started quickly without 24-hour on-duty supervision.

It is equipped with Gree intelligent variable frequency air cooling & circulating heat dissipation closed-loop cooling system. Cooling is completed synchronously during fixing and discharging, no extra cooling equipment or manual handling is needed. Fan speed and cooling time can be adjusted flexibly according to tea types, which greatly reduces labor and site costs and realizes integrated continuous production.

We implement strict three-inspection factory standards:

Inspection Procedure	Inspection Content
1st Inspection (Core Components)	Smoothness of fixing drum and thermal conductivity of heating elements to prevent tea adhesion and ensure even heating
2nd Inspection (Control System)	Precise temperature and time control to meet processing demands of various teas
3rd Inspection (Safety Configuration)	Full inspection on emergency stop button, safety guardrails and leakage protection devices

All equipment must pass overall trial operation before delivery.

All materials meet food safety requirements. All parts contacting tea are non-toxic and harmless. Model 100 and 200 are fully made of 304 stainless steel with FDA food-grade certification. The equipment produces no open flame or exhaust gas, keeping the working environment clean.

Power consumption is about 30% lower than similar products. Take DAWB-600 (240kW) as an example, it can save 576 kWh after 8 hours of continuous operation. Independent dehumidification and ventilation in separate chambers ensure thorough moisture evaporation and reduce subsequent drying costs.

• Site: Flat concrete ground with qualified load-bearing capacity;
• Power: Three-phase 380V/50Hz power supply, customizable for international standards;
• Space: Reserve at least 1 meter around the equipment for operation and maintenance;
• Environment: Good ventilation in the installation area.

The time varies according to equipment model and configuration.

We adopt three-level export packaging standard suitable for long-distance land and sea transportation:

1. 1st layer: Stretch film for moisture-proof protection;
2. 2nd layer: Custom high-strength export wooden crate for shock absorption;
3. 3rd layer: Fumigated pallets + steel strapping for reinforcement.

It effectively prevents vibration, dampness and damage during transportation.

Warranty Rules: 12-month full machine warranty, 6-month warranty for magnetron (core component), calculated from the acceptance date.
Warranty Coverage: Free repair and replacement for failures of the whole machine and original accessories under normal operation.
Exclusions: Damage caused by improper operation, unauthorized disassembly/modification, force majeure (fire, flood, lightning etc.), and normal consumable parts.

We have established a three-level emergency response mechanism:

Fault Level	Description	Response Time	Solution
Level 1	Minor faults, no impact on production	Remote response within 2 hours	Remote guidance for troubleshooting
Level 2	Affect partial production lines	Response within 4 hours, on-site service ASAP	On-site repair by professional engineers
Level 3	Full production shutdown	Emergency response within 1 hour	Urgent dispatch + air transportation of spare parts

Easy daily maintenance:

• Daily: Clean air intake filter and heat sink to remove dust;
• Weekly: Clean drum interior and inspect transmission components;
• Monthly: Check gear clearance and add lubricating oil;
• Quarterly: Calibrate temperature control system and test insulation performance.

Main vulnerable parts: Conveyor belt (service life: 1-2 years), seals (service life: 1 year), magnetron (6-month warranty, service life: 2-3 years). We promise to supply spare parts for no less than 5 years after equipment discontinuation. Key spare parts can be stocked in advance or delivered quickly via logistics.

Yes. We provide a three-tier training system: Basic training (operation, daily maintenance and simple troubleshooting with manuals, videos and online Q&A); On-site training (1-3 days) during installation and commissioning; Advanced training (equipment principle, advanced debugging and maintenance, customers can send staff to our factory).

The price of DAWB series ranges from RMB 198,000 to 768,000. Quotation is customized according to model, power and configuration.
Included: Main unit, standard accessories, control system, technical documents and operation manual.
Excluded: Domestic & international shipping cost, installation & commissioning fee (negotiable in contract), import tariff & customs clearance fee, on-site infrastructure and power support works.

Standard models: 45-60 working days; Custom models: 70 working days.
Process: Design confirmation (5-7 days) → Raw material procurement (10-15 days) → Production & manufacturing (25-35 days) → Factory testing (5-7 days) → Packaging & shipment (3-5 days).

Two testing methods are available:

1. Sample testing: Customers send fresh leaf samples to our factory. We conduct fixing tests and provide test reports & finished samples;
2. Factory visit: Welcome to visit our factory in Ya'an, Sichuan to watch on-site equipment operation.

Custom Items	Optional Solutions
Track Material	Stainless steel mesh belt / Teflon cloth belt
Cavity Length	Customized according to production capacity
Number of Microwave Sources	Adjustable within model range
Control System	Standard PLC / High-end Touch Screen / Custom Program
Voltage Adaptation	Global mainstream national standards
UI Language	Chinese / English / Spanish / Other customized languages
Special Functions	Organic certification module, CTC blade, special processing functions