


Shanghai Dazhang Environment Protection Equipment Co., Ltd. presents the cutting-edge Dazhang high-pressure program controlled membrane filter press, which incorporates world-class TPE diaphragm technology. This innovation promises an impressively extended service life, excellent membrane flexibility, and robust resistance against strong acids and alkalis, making it ideal for a wide array of industrial applications. Whether utilizing air or water pressure, the press can achieve water pressure levels between 0.8 and 4.0 MPa, ensuring efficient and adaptable performance.
Our advanced variable filter chamber technology is revolutionizing solid-liquid separation across a multitude of sectors, including petrochemical, mining, metallurgy, food processing, pharmaceuticals, coal washing, paper production, pigment dyes, the burgeoning new energy sector with lithium batteries, photovoltaics, and even fly ash desalination. This technology significantly boosts production efficiency and minimizes the moisture content of filter cakes. For various operational demands, the pressure levels are categorized into standard diaphragm pressing at 0.8-1.6 MPa, with options for ultra-high pressure diaphragm pressing equipment ranging from 2.0-4.0 MPa, ensuring our solutions meet diverse industrial conditions.
In the realm of municipal domestic sludge dewatering, our high-pressure dewatering technology excels by minimizing filter cake moisture to meet stringent landfill and incineration standards, achieving moisture levels of 35%-60% in municipal sludge. This advancement offers a groundbreaking reduction in sludge volume compared to conventional dewatering methods, positioning our technology as a leader in efficient sludge management.
Our state-of-the-art dehydration system offers seamless automated operation, complemented by features such as a filter cake auxiliary discharge system, an online filter cloth flushing system, and automatic valve instrumentation. This comprehensive system facilitates truly unmanned operations, embodying the future of efficient and effective industrial processing.
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 over two decades, Shanghai Dazhang Environment Protection Equipment Co., Ltd. has been a leading force in the filter press and solid-liquid separation industries. As a proud pioneer and primary contributor to the establishment of industry standards for filter presses and filter plates, our products consistently shine among the top three in production and sales volume across China. Our expansive manufacturing facilities, sprawling over 570,000 square meters, are home to a dedicated team of more than 1,000 professionals.
We excel as a premier smart manufacturer and a comprehensive service provider specializing in state-of-the-art filter presses and advanced sludge dewatering equipment.
Our robust infrastructure includes three production bases, eight strategic domestic offices, two international offices, two overseas subsidiaries, and a Sino-German joint venture dedicated to high-end filter plate manufacturing. Our innovation is underscored by three invention patents and an impressive portfolio of over 100 utility model patents.
We are proud bearers of numerous certifications and accolades, such as the ISO 9001 Quality Management System certification, ISO 14001 Environmental Management System certification, ISO 18001 Occupational Health and Safety Management System certification, the prestigious EU's CE certification, complemented by insurance coverage from PICC, the People's Insurance Company of China.
We are committed to delivering unparalleled user experiences and crafting design solutions that are not only cost-effective but also exceptionally efficient.








Q1. Are you a manufacturer or a trader?
We are a seasoned manufacturer strategically located in Shanghai, bringing years of expertise to the table.
Q2. How about the production capacity of your company?
Our state-of-the-art factory spans over an impressive 570,000 square meters
2 and boasts an annual production capacity of 9,500 sets of machinery, ensuring robust and efficient output.
Q3. How long is the delivery time for bulk order?
Typically, our delivery timeframe ranges from 15 to 30 working days post deposit confirmation. However, for larger equipment or customized requirements, the delivery schedule may be adjusted to accommodate specific needs.
Q4. What are the payment terms?
Our preferred payment method is T/T. A deposit is required initially to commence production upon order confirmation, followed by the balance payment post-inspection.
Q5. How long is the product warranty period?
Our products come with a one-year warranty for normal usage, alongside lifelong online service support. However, it is important to note that this excludes wearing parts and issues arising from incorrect operation by workers.
Q6. What's the after sale service of your company?
We provide comprehensive after-sale services, including foundation drawings for installation, detailed installation videos, and online guidance. Site visits by our skilled workers can also be arranged based on your requirements.
Q7. Can your company provide wearing parts?
We offer manufacturing of wearing parts tailored for our clients. For equipment not manufactured by us, kindly supply the wearing parts drawings for accurate production.