


Introducing the cutting-edge Dazhang high pressure program-controlled membrane filter press, crafted with the globally advanced TPE diaphragm technology. This exceptional device boasts a remarkably long service life, superior membrane shrinkage, and robust resistance to both acids and alkalis. It's perfectly adaptable to a multitude of industries. With the flexibility to use either air or water pressure for pressing, the water pressure capabilities extend impressively from 0.8 to 4.0 MPa.
Experience the versatility of variable filter chamber technology, a solution embraced across a spectrum of industries for solid-liquid separation. From petrochemical, mining, and metallurgy to food, medicine, coal washing, paper production, and pigment dyeing, as well as new energy sectors like lithium batteries and photovoltaics, this innovation significantly enhances production efficiency while minimizing filter cake moisture. Pressure levels are categorized into conventional diaphragm pressing (0.8 to 1.6 MPa) and ultra-high pressure diaphragm pressing, offering options from 2.0 to 4.0 MPa to accommodate varying operational demands.
In the realm of municipal domestic sludge dewatering, high-pressure dewatering technology is revolutionizing the industry by achieving unprecedented low moisture levels in filter cakes, compliant with stringent landfill and incineration standards. The municipal sludge can be processed to maintain moisture content between 35% and 60%. This advancement marks a significant leap from traditional equipment, offering efficient sludge reduction treatment.
Our state-of-the-art dehydration system is designed for seamless automated operation, equipped with advanced features such as a filter cake auxiliary discharge system, an online filter cloth flushing system, and automated valve instrumentation. These capabilities ensure a truly unmanned operation, optimizing efficiency and reliability.
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 passionately served the filter presses and solid-liquid separation industries. As key contributors to the industry standards for filter presses and filter plates, our products consistently rank among the top three in production and sales volume across China. Our expansive manufacturing facilities, which span over 570,000 square meters, are home to a skilled workforce of more than 1,000 dedicated professionals.
We proudly stand as a smart manufacturer and a comprehensive service provider for filter presses and sludge dewatering equipment, ensuring cutting-edge solutions and exceptional service.
Our company boasts three state-of-the-art production bases, eight domestic offices, two international offices, two overseas subsidiaries, and a Sino-German joint venture focused on high-end filter plate manufacturing. We are proud holders of three invention patents and over 100 utility model patents, showcasing our commitment to innovation.
Our commitment to excellence is further demonstrated through the attainment of numerous certifications and accolades, including ISO 9001 Quality Management System certification, ISO 14001 Environmental Management System certification, ISO 18001 Occupational Health and Safety Management System certification, the prestigious EU CE certification, and comprehensive insurance coverage from PICC, the People's Insurance Company of China.
Our mission is to deliver superior user experiences through innovative and cost-effective design solutions, constantly striving to exceed expectations with efficiency and finesse.








Q1. Are you a manufacturer or a trader?
We are a seasoned manufacturer, proudly operating from our advanced facilities in Shanghai.
Q2. How about the production capacity of your company?
Our expansive factory, covering over 570,000 square meters,
2 has the impressive capacity to produce 9,500 machines annually, showcasing our robust manufacturing prowess.
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 customized requirements, delivery time may be extended to accommodate your specific needs.
Q4. What are the payment terms?
Our payment terms are generally conducted via T/T. A deposit is required prior to production upon order confirmation, followed by the balance payment post-inspection.
Q5. How long is the product warranty period?
We offer a one-year warranty under normal usage, accompanied by lifetime online service support. Note: The warranty excludes wear parts and issues caused by improper operation.
Q6. What's the after sale service of your company?
We provide detailed foundation drawings for installation, along with comprehensive installation videos and online guidance. If on-site assistance is required, arrangements can be made based on your specific requirements.
Q7. Can your company provide wearing parts?
Yes, we manufacture wearing parts for our equipment. For equipment not produced by us, please furnish the drawing of the required wearing parts for production.