


The Dazhang high pressure program controlled membrane filter press proudly employs cutting-edge TPE diaphragm technology, renowned for its exceptional durability. This state-of-the-art system ensures an extended service life and features remarkable membrane flexibility. It exhibits outstanding resistance to strong acids and alkalis, making it an ideal choice for a diverse range of industries. The flexible pressing mechanism allows for the use of either air or water pressure, with water pressure reaching an impressive 0.8-4.0 MPa.
Embrace the innovation of variable filter chamber technology, a cornerstone in solid-liquid separation across numerous sectors including petrochemical, mining, metallurgy, food and medicine, coal washing, paper making, pigment dyes, new energy lithium batteries, photovoltaics, and fly ash desalination. This advanced technology not only significantly boosts production efficiency but also reduces the moisture content of filter cakes. Our systems offer a range of pressure options, from conventional diaphragm pressing at 0.8-1.6 Mpa to ultra-high pressure diaphragm pressing, supporting different pressure levels of 2.0-4.0 Mpa to perfectly fit varying operational needs.
Harnessing high-pressure dewatering technology within municipal domestic sludge dewatering processes, our solution effectively reduces the filter cake's moisture content to industry-leading levels, meeting landfill and incineration standards with moisture content ranging from 35%-60% for municipal sludge. This represents a significant advancement in sludge reduction, surpassing traditional dewatering equipment in efficiency and performance.
Experience the future of efficiency with our dehydration system, designed for seamless automated operation. Enhance productivity further with optional features including a filter cake auxiliary discharge system, an online filter cloth flushing system, and state-of-the-art automatic valve instrumentation, all aimed at achieving a truly unmanned operation.
TYPE |
D |
D1 |
D2 |
n-M |
D |
D1 |
D1 |
n-M |
Diaphragm pressing flange |
870 |
185 |
145 |
56 |
4-Φ18 |
165 |
125 |
40 |
4-Φ18 |
DN25/PN1.6 |
1000 |
185 |
145 |
56 |
4-Φ18 |
165 |
125 |
40 |
4-Φ18 |
DN25/PN1.6 |
1250 |
220 |
180 |
85 |
8-Φ18 |
165 |
125 |
40 |
4-Φ18 |
DN50/PN1.6 |
1500 |
285 |
240 |
144 |
8-Φ23 |
165 |
125 |
40 |
4-Φ18 |
DN65/PN1.6 |
XG200/1250-U |
200 |
|
≤40 |
3847 |
73 |
≥0.8 |
|
15320 |
8450×1840×163C |
7356 |
|
|
|
XG240/1250-U |
240 |
4679 |
89 |
16170 |
9670×1840×1630 |
8580 |
XG250/1250-U |
250 |
4783 |
91 |
17020 |
9820×1840×1630 |
8730 |
XG200/1500-U |
200 |
1500×1500 |
3809 |
49 |
11 |
26120 |
7140×2200×1820 |
5920 |
1170 |
1990 |
1070 |
xG250/1500-U |
250 |
4723 |
61 |
26930 |
7730×2200×1820 |
6910 |
xG300/1500-U |
300 |
5637 |
73 |
28160 |
8720×2200×1820 |
7900 |
XG350/1500-U |
350 |
6551 |
85 |
29600 |
10110×2200×1820 |
9090 |
XG400/1500-U |
400 |
7618 |
99 |
31500 |
11260×2200×1820 |
10240 |
XG450/1500-U |
450 |
8532 |
111 |
33400 |
12250×2200×1820 |
11230 |
XG500/1500-U |
500 |
9446 |
123 |
33380 |
13240×2200×1820 |
12220 |
XG600/2000-U |
600 |
2000×2000 |
11901 |
85 |
15 |
54164 |
13030×3000×2500 |
10610 |
1660 |
2000 |
1050 |
XG700/2000-U |
700 |
13838 |
99 |
58300 |
14390×3000×2500 |
11920 |
XG800/2000-U |
800 |
14945 |
107 |
62460 |
15770×3000×2500 |
13240 |


For an impressive twenty-one years, Shanghai Dazhang Environment Protection Equipment Co., Ltd. has been at the forefront of the filter press and solid-liquid separation industry. As the leading pioneers drafting the industry's standards for filter presses and plates, our products proudly rank among the top three in both production and sales volume within China. Our expansive manufacturing facilities span an astounding 570,000 square meters, where over 1,000 dedicated staff members work tirelessly to ensure excellence.
We stand as a smart manufacturer and comprehensive service provider, specializing in state-of-the-art filter presses and cutting-edge sludge dewatering equipment.
Our company boasts three strategic production bases, eight domestic offices, two international offices, as well as two overseas subsidiaries. Additionally, we are proud to have a Sino-German joint venture for the production of high-end filter plates. With three invention patents and over 100 utility model patents in our arsenal, innovation is at our core.
Our commitment to excellence is validated by numerous prestigious certifications and honors. We are the proud recipients of the ISO 9001 Quality Management System certification, ISO 14001 Environmental Management System certification, and ISO 18001 Occupational Health and Safety Management System certification. Our products meet the stringent standards of the EU's CE certification and are backed by insurance from PICC, the People's Insurance Company of China, ensuring peace of mind.
Our mission is to deliver unparalleled user experiences and provide design solutions that are both cost-effective and efficient, enhancing the value we offer to our clients!








Q1. Are you a manufacturer or a trader?
We are a seasoned manufacturer, proudly located in the vibrant city of Shanghai.
Q2. How about the production capacity of your company?
Our extensive factory spans over 570,000m
2 and boasts an impressive production capacity, manufacturing 9,500 machines annually.
Q3. How long is the delivery time for bulk order?
Typically, our delivery timeframe is 15-30 working days following the deposit. For larger equipment or custom specifications, delivery time may be extended to accommodate special requirements.
Q4. What are the payment terms?
Our standard payment terms are by T/T, with an initial deposit required before production begins once the order is confirmed, followed by a balance payment post-inspection.
Q5. How long is the product warranty period?
Our products come with a one-year warranty for normal usage, complemented by lifelong online service. Please note that wearing parts and issues caused by improper operation are not covered.
Q6. What's the after sale service of your company?
We provide comprehensive after-sales support, including foundation drawings for installation, instructional videos, and online guidance. If on-site assistance is required, our skilled workers can be dispatched to meet your needs upon request.
Q7. Can your company provide wearing parts?
Yes, we offer production of wearing parts for our esteemed clients. For equipment not manufactured by us, kindly furnish us with the detailed drawings of the required wearing parts.