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INNOVATIVE AND HIGH-PERFORMANCE FLUID SEPARATION SOLUTIONS
COMPLETE PRODUCTION LINE SOLUTIONS FOR LIQUID BEVERAGES
COMPLETE PRODUCTION LINE SOLUTIONS FOR LIQUID BEVERAGES
milk bananer
COMPLETE PRODUCTION LINE SOLUTIONS FOR DAIRY PRODUCTS
植物bananer
COMPLETE PRODUCTION LINE SOLUTIONS FOR PLANT EXTRACTION
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Professional Liquid Separation and Complete Line Expert

Are you seeking the top-notch membrane filtration equipment and customized fluid filtration and separation systems in the industry? You've come to the right place! As innovators in membrane filtration technology, we have accumulated a decade of experience and won the recognition of industries worldwide with our precise solutions.
Our team of experts customizes fluid separation and processing solutions for multiple industries, covering the following fields:
- Membrane separation pilot systems, which are used for research and development as well as small-scale testing.
- Instant solid beverage production lines for the production of powders, concentrated liquids, and functional beverages.
- Plant and animal protein peptide production lines, optimizing extraction and purification processes, applicable to raw materials and the pharmaceutical industry.
- Fruit and vegetable juice, cider, and enzyme production lines, which enhance clarity, shelf life, and production yield.
We maintain a leading position in the dairy products field, optimizing the processing technologies of milk, whey, and derivative ingredients. In the brewing and wine industries, our de-alcohol systems and decolorization filtration skids have set new benchmarks for quality and efficiency. Whether you need to scale up pilot tests, start commercial production, or upgrade existing production lines, we can provide solutions that match your goals, ensuring the reliability, sustainability, and high performance of the systems.

Doupu - A Globally Trusted Provider of Turnkey Engineering Solutions

Doupu  is advancing unceasingly in the biotechnology field with a global vision, advanced technologies, and premium services. We look forward to joining hands with more customers to jointly propel the juice beverage production, plant extraction, coffee, and dairy product processing industries to new heights.
Doupu . has won the favor of global customers with its cutting - edge technology and high - quality products. Since its establishment, we have been committed to providing innovative solutions for the juice beverage production, plant extraction, and dairy product processing industries. In particular, we have achieved remarkable results in the research and manufacturing of various separation equipment, such as centrifuges, membrane filtration, and membrane concentration devices.

Our machines, renowned for their outstanding performance and stable quality, have been sold to numerous countries worldwide. From the prosperous markets in Europe and the Americas to the rapidly developing regions in Asia, Africa, and South America, our equipment operates efficiently. Both top - tier research institutions in developed countries and emerging enterprises in developing countries have highly praised our products. These devices play a crucial role in enhancing production efficiency and optimizing product quality for customers around the globe, contributing significantly to every link of the juice beverage production, plant extraction, and dairy product processing industrial chains.
Professional Techincal Team
Whether for a single machine or a turnkey project, we are committed to delivering the highest quality service tailored to your needs. ​​​​​​​
Membrane Separation: Reverse Osmosis Membrane System, Nanofiltration Membrane System, Ultrafiltration Membrane System, Microfiltration Membrane System, Membrane Cleaning Unit, Membrane Module Housing

Water Treatment: Ultrafiltration Unit, Reverse Osmosis System, Multimedium Filter, Activated Carbon Filter, Cartridge Filter, UV Sterilizer, Ozone Generator, Centrifuge, Bag Filter, Vacuum Evaporator
 
Fruit Juice Beverage Production Line: Fruit Crusher, Press Machine, Centrifuge, Bag Filter, Ultrafiltration Equipment, Vacuum Evaporator, Sterilizer (Plate/Tubular), Homogenizer, Filling Machine, Capping Machine, Labeling Machine
 
Dairy Production Line: Milk Clarifier, Centrifuge, Pasteurizer, Homogenizer, Bag Filter, Evaporator (Falling Film/Rising Film), Fermentation Tank, Cooling Tank, Filling Machine, Packaging Machine
 
Plant Extraction Production Line: Extraction Tank, Centrifuge, Bag Filter, Ultrafiltration Membrane System, Nanofiltration Membrane System, Vacuum Evaporator, Spray Dryer, Concentrator, Storage Tank, CIP Cleaning System
 
Instant Coffee Production Line: Coffee Roaster, Grinder, Extraction Tank, Centrifuge, Bag Filter, Evaporation System, Aroma Recovery Unit, Spray Dryer, Powder Mixer, Packaging Machine
Instant Tea Powder Production Line: Tea Leaf Extractor, Centrifuge, Bag Filter, Ultrafiltration Equipment, Multieffect Evaporator, Spray Dryer, Granulator, Powder Packaging Machine, CIP System
15+
INDUSTRY EXPERIENCE​​​​​​​
1000+
SUCCESSFUL PROJECT CASES​​​​​​​
30+
INDEPENDENT RESEARCH AND DEVELOPMENT PATENTS​​​​​​​
1000+
LONG-TERM CHOICE AND TRUST OF CUSTOMERS​​​​​​​
About Us
We have an excellent technical team, which can be designed according to customers requirements.

Enterprise Advantages

Technical Innovation

The annual R & D investment accounts for 15% of the total revenue, ensuring technological leadership.

Professional Team

The employees are engineering and technical staff, with each having an average of more than 15 years of industry experience.

Product Performance

The purity of the extract can reach over 98%, and the recovery rate of active ingredients can be increased by 30%.

Customer Service

Customer inquiries are replied to within an average of 1 hour, and after - sales problems are resolved within 24 hours.
News

Horizontal Decanter Centrifuge for Starch Slurry Purification and Protein Separation

Industrial starch production generates crude starch slurry mixed with residual protein, fine fiber fragments, suspended solids and soluble impurities during grinding and washing processes. Traditional separation methods such as gravity sedimentation and flat screen filtration feature low separation precision, long cycle time and high residual protein content, resulting in low starch purity and poor product whiteness. The horizontal decanter centrifuge utilizes high-density difference centrifugal separation to realize continuous removal of protein, fine slag and impurities from starch slurry under fully enclosed conditions. It effectively separates starch granules from miscellaneous proteins and fiber residues, improving starch purity, whiteness and extraction yield. As the core purification equipment for starch processing, it is widely applied in corn, potato, tapioca and wheat starch industrial production lines.

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Horizontal Decanter Centrifuge for Animal Oil and Fish Oil Purification and Separation

Crude animal oil and fish oil extracted from raw animal tissues and fish leftovers contain a large amount of solid impurities, protein residues, suspended particles and emulsified colloids. Traditional purification methods such as heating sedimentation and frame filtration have low separation accuracy, incomplete slag removal and high impurity residue rate, which easily cause oil turbidity, dark color and poor oxidation stability. The horizontal decanter centrifuge adopts high-speed density difference separation technology to realize continuous solid-liquid separation and crude oil purification under low-temperature and fully enclosed conditions. It efficiently removes solid slag, denatured protein and suspended impurities, effectively improving oil clarity and purity. This physical separation process avoids thermal deterioration of oil quality and has become the core pretreatment equipment for modern fish oil and animal fat deep processing.

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Horizontal Decanter Centrifuge for Fruit and Vegetable Juice Clarification and Residue Separation

Crude fruit and vegetable juice obtained by crushing and pulping contains a large amount of fine pulp residues, fiber fragments, suspended solids and biological colloids. Traditional clarification methods such as static sedimentation, filter bag filtration and diatomaceous earth filtration have low separation efficiency, require frequent replacement of filter materials, and cannot completely remove micro-fine suspended impurities. These defects easily cause juice turbidity, precipitation and short shelf life of beverage products. The horizontal decanter centrifuge adopts high-speed centrifugal sedimentation technology to realize continuous, fully enclosed and low-temperature solid-liquid separation for fruit and vegetable pulp. It efficiently removes residual pulp, fine fibers and unstable colloidal particles while retaining natural flavor and nutritional ingredients, significantly improving juice clarity and product stability. As a high-efficiency pretreatment equipment, it has become

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Telephone: +86-19981016856
E-mail: service@doupubio.com / support@doupubio.com
Address:No.8 Lantian Avenue (29#), Economic Development Zone (North District), Shifang City, Deyang City, Sichuan Province
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