Intelligent temperature control, high uniform drying quality

Zhengzhou Wangu Machinery Rotary Dryer – Global Benchmark for High‑Efficiency Agricultural & Industrial Material Drying

As a national high‑tech enterprise with over 20 years of expertise in drying equipment, Zhengzhou Wangu Machinery Co., Ltd. leverages the R&D strength of a provincial‑level enterprise technology center, a number of core drying patents, and industry experience as a national standard drafting unit to develop the GGZ Series Rotary Dryer. Featuring high efficiency, energy‑saving performance, sophisticated structural design, comprehensive safety protection, and proven capabilities in large‑scale project delivery, this equipment stands as the preferred drying solution for grain storage, food brewing, fruit and vegetable deep processing, and industrial solid‑waste resource utilization worldwide. Wangu has long‑term cooperation with leading domestic enterprises including Hunan Jiugui Liquor Co., Ltd. and Huiyuan Juice, earning deep trust from global clients through benchmark‑project‑verified strength.

1. Core Application Scenarios

The Rotary Dryer boasts excellent material compatibility and strong adaptability to complex working conditions, perfectly meeting the large‑scale production demands of major food, brewing, grain, and oil enterprises:
✅ Brewing Industry: Effectively handles high‑moisture, high‑viscosity, and perishable distiller’s grains from liquor production, reducing moisture from 85% to 12% steadily. Supported the distiller’s grain resource utilization project of Hunan Jiugui Liquor Co., Ltd., solving challenges in environmental disposal and high‑value reutilization of brewing by‑products.
✅ Fruit & Vegetable Deep‑Processing Industry: Adapts to drying fruit pomace, apple pomace, citrus pomace, and other by‑products of Huiyuan Juice. Efficiently dehydrates high‑fiber, high‑moisture materials while maintaining stable quality, complying with environmental compliance and resource recycling requirements for food enterprises.
✅ Grain & Oil Storage Industry: Enables large‑scale drying of corn, wheat, rice, soybeans, sorghum, rapeseed, and other grains and oilseeds, accurately controlling moisture reduction to ensure grain quality and long‑term storage stability.
✅ Industrial Environmental Protection Industry: Processes starch residue, monosodium glutamate residue, sludge, compound fertilizer, and other high‑moisture industrial residues, realizing harmless disposal and resource recovery of solid waste.

Suitable for outdoor installation and 24/7 continuous operation, the dryer fits large‑scale industrial parks and centralized drying workshops, capable of undertaking 10,000‑ton‑level large drying projects.

2. Core Performance & Structural Advantages

① High‑Efficiency Drying with Stable & Controllable Output

Adopts an advanced mixed‑flow + concurrent‑flow + counter‑flow combined drying process, equipped with an optimized air distribution system and high‑efficiency material lifting devices to enhance full heat exchange between materials and hot air. The maximum hourly moisture evaporation reaches 10 tons, with a maximum single‑pass moisture reduction of 25%. The drying uniformity error is strictly controlled within 2%, ensuring consistent quality across batches and perfectly matching large‑scale continuous production requirements of leading enterprises.

② Energy‑Saving & Cost‑Effective Operation

Integrates multiple national energy‑saving patented technologies and an efficient waste‑heat recovery system, reducing overall energy consumption by over 30% compared with similar equipment. Compatible with coal, gas, biomass, natural gas, rice husk, and other heat sources for flexible configuration based on local energy structures, minimizing long‑term operating costs and meeting global low‑carbon and environmental‑friendly production standards.

③ Robust Structure for Durability & Low Maintenance

The main cylinder is made of high‑strength, wear‑resistant, and high‑temperature‑resistant special steel, featuring high structural rigidity, anti‑deformation, and anti‑corrosion properties to adapt to harsh environments with high dust and humidity. Precisely machined cylinders work with a variable‑frequency stepless speed‑regulation drive system to accurately adjust rotation speed and temperature according to different material characteristics. The unique head‑to‑tail double‑sealing structure prevents heat loss and dust overflow, improving energy efficiency while keeping the workshop clean.

④ Intelligent Operation & Comprehensive Safety Protection

Designed in strict accordance with international safety standards, equipped with an intelligent online monitoring system that tracks temperature, pressure, material level, and other key parameters in real time. It triggers automatic sound‑light alarms and emergency shutdowns under abnormal conditions. Core electrical components adopt world‑renowned brands, integrating overload, leakage, over‑temperature, and other multi‑layer protection functions. The equipment surface undergoes professional anti‑corrosion and rust‑proof treatment, ensuring low failure rates during long‑term operation and safe 24/7 continuous production for large enterprises.

3. Corporate Strength

As a national high‑tech enterprise, provincial‑level enterprise technology center, and drafter of national grain drying equipment standards, Zhengzhou Wangu Machinery has 28 years of experience in the drying equipment industry, delivering over 2,000 complete drying projects at home and abroad, with products exported to Southeast Asia, South Asia, Eastern Europe, and other regions worldwide.
✅ Benchmark Project Cooperation: Long‑term service provider for the distiller’s grain drying project of Hunan Jiugui Liquor Co., Ltd. and the fruit pomace drying project of Huiyuan Juice, offering customized drying solutions for leading food and brewing enterprises. The stable long‑term operation of these projects has gained high industry recognition for equipment performance, stability, and after‑sales support.
✅ R&D & Manufacturing Capability: Boasts over 80 mid‑to‑senior engineering technicians and more than 200 professional processing equipment sets, providing one‑stop services including process design, equipment manufacturing, installation and commissioning, and full‑cycle after‑sales support.
✅ Quality Certification: Holds multiple national utility model patents and Henan Provincial Science and Technology Progress Awards. Products have passed authoritative provincial and ministerial appraisals, winning honors such as “China Agricultural Machinery Industry’s Most Influential Brand of the Year” and “National Agricultural Machinery Users’ Satisfactory Brand”. Quality and reliability are fully verified by long‑term cooperation with leading enterprises.

We provide overseas clients with customized process design, equipment selection, on‑site installation and commissioning, full‑cycle technical training, and lifelong spare‑parts supply, ensuring efficient project launch and long‑term stable operation.

 ZHENGZHOU WANGU MACHINERY CO.,LTD

 Our company is founded in 1998 who specializes in the design and manufacture of various drying equipment and has   obtained a number of patents in professional drying field.Main products include grain dryers such as corn dryer, paddy   dryer,rapeseed dryer, and other dryers like tube bundle dryer,fruit residue dryer, rotary dryer, etc..

 The company has 416 employees, among them, there are 63 senior engineers.As the national standard drafter of grain   dryer  in China, our grain dryers are not only in the leading position in the grain drying industry, but also have strong   competitive strength in the world.We have established long-term stable cooperative partnership with many well-known   enterprises, such as Sinograin,COFCO, Wilmar, Heilongjiang Beidahuang Agriculture Co. Ltd., Jiusan Groupetc., with an   annual sale of more than200 sets of equipment.

Our main products are drying line of grians and oil crops(50-2000t/day):available to drycorn,wheat,paddy,soybean and ra pe seed etc,complete drying engineering of apple pomace,citrus pulp and other pomace（1-15tons/day),storehouse cassava dry ing line(100-400ton/day),complete drying engineering of alcohol lees,distilled spirits lees and brewer's spent grain(1-12 tons/day). tower grain dryer of different types,cylinder dryer of different specification for pomace, tube bundle and tube sheet dryer:10-60tons/day,coal-burning hot air furnace,rice hull hot air furnace, straw hot air furnace and marsh gas hot air furnace 0.35-11.2MW(300,000-9600,000kcal/h), grain delivery and cleaning machinery:bucket elevator,belt conveyor,screw conveyor and cleaning sieve.

Pre-sale services:

1. provide professional technical support;

2. send the product catalog and instruction manual;

3. personal call or visit is warmly welcome

Sale of services:

1. we promise honesty and enthusiasm, it’s our pleasure to serve you as you purchasing consultant.

2. We guarantee punctuality, quality and quantities strictly implement the terms of contract

3. We send engineers to install in your factory and train your works until they totally get all skills

After-sale service:

1. One year warranty and life long maintenance

2. 24 hours telephone service online

3. A large stock of components and parts, easily-worn parts.