


The Dazhang Program has revolutionized filter press technology by integrating an automatic high-pressure water washing system into our standard machine. This advanced feature is primarily designed for the thorough cleaning of press cloth, enhancing overall efficiency and performance.
When filter cloth becomes obstructed, our innovative cloth washing system powerfully removes the blocked solids with high-pressure water. This not only accelerates the filtration process but significantly extends the lifespan of the equipment. Choose between our Single Pole Washing System and the more robust Double Poles Washing System for superior results.
With a maximum design pressure of 6 MPa, our versatile device offers multiple configurations: a Single Pole Washing System, a Double Poles Washing System, and the sophisticated Scroll Scrubbing System, each tailored to meet diverse operational needs.



For over two decades, Shanghai Dazhang has passionately focused on the filter press and solid-liquid separation sectors. As prominent contributors to national industry standards for filter presses and plates, we proudly rank among China's top three in production and sales. Our expansive facilities, spanning over 570,000 square meters, employ a dedicated workforce exceeding 1,000 professionals.
As an intelligent manufacturer, we are a leading provider of comprehensive services in filter press and sludge dewatering equipment, ensuring top-notch quality and innovation.
Our company boasts three state-of-the-art production bases, eight domestic offices, two international offices, two overseas subsidiaries, and a valuable Sino-German joint venture for premium filter plate production. We hold three groundbreaking invention patents and over 100 utility model patents, underscoring our commitment to innovation.
We are proud recipients of numerous certifications and accolades, including the esteemed ISO 9001 Quality Management System, ISO 14001 Environmental Management System, and ISO 18001 Occupational Health and Safety Management System certifications. Additionally, our products carry the EU's CE certification and are insured by PICC, the People's Insurance Company of China.
Our relentless pursuit is to deliver superior user experiences through more cost-effective and highly efficient design solutions, setting new standards in the industry!








Q1. Are you a manufacturer or a trader?
We are a seasoned manufacturer, proudly based in the dynamic city of Shanghai, and committed to excellence.
Q2. How about the production capacity of your company?
Our expansive factory spans over 570,000 square meters,
2 enabling us to produce an impressive 9,500 machines annually, meeting the demands of a global market.
Q3. How long is the delivery time for bulk order?
Typically, delivery takes 15-30 working days post-deposit. For larger equipment or custom specifications, delivery timelines may extend, ensuring meticulous attention to detail.
Q4. What are the payment terms?
We generally accept T/T payments: a deposit initiates production upon order confirmation, followed by a balance payment post-inspection, offering secure transactions.
Q5. How long is the product warranty period?
Our products come with a one-year warranty under normal use, complemented by lifetime online service. Note: Wearing parts and issues from improper operation are excluded.
Q6. What's the after sale service of your company?
We provide detailed foundation drawings for installation, alongside comprehensive video and online guidance. On-site assistance by our skilled workers is available upon request to ensure seamless setup.
Q7. Can your company provide wearing parts?
We manufacture high-quality wearing parts for clients. For equipment not made by us, please supply the necessary wearing parts drawings for compatibility.