DOYEN is a Chinese company that designs and manufactures the most cost effective wastewater treatment system & equipment for over 10 years. Both in China and overseas, DOYEN can provide its customers economical solutions based on combined experience and innovative engineering design with proven application expertise. We specializes in manufacturing the most cost effective liquid-solid separation equipments such as belt filter press, chamber filter press, plate and frame filter press, waste water treatment system with various types which are special designed for municipal waste treatment, and industries of ceramics, brewery, ethanol , wood, food, textile&dyeing, mining etc. In addition to our ready models, we also welcome OEM/ODM orders. Adhering to our company principle of `Creating value for you`, we are consistently working toward more benefits for our customers. Please contact us now to learn more.

About Doyen (China) Machinery Co., Ltd.

We,Doyen (China) Machinery Co. Ltd. is one of the leading manufacturers of Liquid Solid separation equipment. The company’s products are extensively used in Mineral processing, Chemical processing, Clay Industries, Food processing, Pulp and paper, Stone & Marble industries and various other process industries where separation of solids & liquids is desired. Our equipments are designed such as the product of importance (solids or liquid) can be recovered in a hassle free manner.

Formed in the year 1998, we have been since supplying equipment in China & around the globe. In abroad we have our installations in North America, South America, Middle East (Kuwait), Thailand, Malaysia, Indonesia & India. We have supplied nearly 250 machines for various applications worldwide.

It’s our pleasure to offer the most suitable and most economic effective proposal for you according to your project!


  • Reliable Service.
  • Customized Design.
  • High Quality Production.
  • All-Rounded Training.


DY - Model XMZ630 - Auto Chamber Filter Press

Features: Filter plates are made of strengthened polypropylene adding TPE through mold pressing, good in sealing and corrosion resistance, non-poisonous and no smell; Mechanical pressing mode is adopted with automatic control and automatic pressure maintaining by using current relays; Simple in operation, convenient in maintenance, and safe in operation with multiple safety devices. Application: Solid-liquid separation in alcohol, chemical, metallurgy, ...

Model YB Series - Sludge Piston Pump

The series of YB hydraulic pumps with ceramic pistons are mainly composed of oil hydraulic system, the cast cavity, oil jars and alumina ceramic pistons which are high wear-resistant. The pump body can be made of cast iron or stainless materials according to the different conditions in which the pumps are used. YB hydraulic pumps are divided into three types. They are high pressure pumps, low pressure and large flow volume pumps, and flow-variable pumps ...


DOYEN - Installation And Training Service

Our factory direct installations ensure that your equipment is manufactured and painted as a complete unit in one of our facilities. Our installation technicians will demonstrate the correct procedures to operate your new equipment safely. We will also provide operation and maintenance training after installation as well as ongoing training to maintain skills.



Company details

Business Type:

Industry Type:
Water and Wastewater - Water Filtration and Separation

Market Focus:
Globally (various continents)

Year Founded:


$10,000,000 US - $100,000,000 US

Office Locations:


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