


Introducing the advanced Dazhang program-controlled automatic high-pressure water washing filter press! This cutting-edge equipment, an innovation of Shanghai Dazhang Environment Protection Equipment Co., Ltd., enhances the standard machine by incorporating an automatic high-pressure washing system. It is meticulously designed to maintain the cleanliness and efficiency of press cloths.
When your filter cloth encounters blockage, fear not! Our sophisticated cloth washing system employs intense high-pressure water to effectively dislodge solid blockages, thereby significantly boosting the filtering speed and prolonging its lifespan. Choose between our Single Pole or Double Poles Washing Systems, tailored to meet diverse operational requirements.
Boasting a robust maximum design pressure of 6MPa, our device is available in various configurations: Single Pole Washing System, Double Poles Washing System, and the innovative Scroll Scrubbing System, each engineered to deliver exceptional cleaning performance.



For over two decades, Shanghai Dazhang has been a trailblazer in the field of filter presses and solid-liquid separation industries. As the primary architects of industry standards for both filter presses and filter plates, we proudly stand among the top three in production and sales volume across China. Our state-of-the-art manufacturing facilities sprawled over an impressive 570,000 square meters, employ a dedicated workforce of more than 1,000 professionals.
We are recognized as a smart manufacturer and comprehensive service provider, excelling in the production of filter presses and sludge dewatering equipment, offering unmatched quality and innovation.
Our company boasts three expansive production bases, eight strategic domestic offices, two international offices, two overseas subsidiaries, and a prestigious Sino-German joint venture for crafting high-end filter plates. We are proud holders of three invention patents and an impressive array of over 100 utility model patents, underscoring our commitment to innovation.
Our credentials are backed by numerous certifications and honors, including ISO 9001 Quality Management System certification, ISO 14001 Environmental Management System certification, ISO 18001 Occupational Health and Safety Management System certification, the esteemed EU's CE certification, and comprehensive insurance coverage from PICC, the People's Insurance Company of China, affirming our commitment to excellence and reliability.
At Shanghai Dazhang, we are dedicated to providing users with an unparalleled experience through more cost-effective and efficient design solutions, continuously enhancing your operational effectiveness.








Q1. Are you a manufacturer or a trader?
We are a seasoned and distinguished manufacturer proudly rooted in Shanghai.
Q2. How about the production capacity of your company?
Our expansive factory spans over a remarkable area of 570,000 square meters
2 and is capable of producing an impressive 9,500 machines annually.
Q3. How long is the delivery time for bulk order?
Typically, delivery is within 15-30 working days post-deposit. However, for larger equipment or specialized customer requirements, delivery times may be adjusted to accommodate these specifications.
Q4. What are the payment terms?
Our standard payment terms are via T/T. A deposit is required prior to production upon order confirmation, with the balance due after thorough inspection.
Q5. How long is the product warranty period?
We offer a comprehensive one-year warranty for normal use, accompanied by lifelong online service. Please note, this warranty excludes wear parts and issues resulting from operator error.
Q6. What's the after sale service of your company?
We provide detailed foundation drawings for installation, along with supportive installation videos and online guidance. Should you require, our skilled personnel are available for on-site assistance, tailored to your specific needs.
Q7. Can your company provide wearing parts?
Yes, we manufacture wearing parts for our valued clients. If your equipment is sourced from another manufacturer, simply supply us with the wearing parts drawing, and we will accommodate your needs.