


The Dazhang high pressure program controlled membrane filter press employs state-of-the-art TPE diaphragm technology, setting a benchmark for industry standards. With an extended specific service life and impressive membrane shrinkage capabilities, it boasts robust resistance to strong acids and alkalis, making it an ideal choice for a multitude of industries. The press can operate using either air pressure or water pressure, with the latter reaching an impressive range of 0.8-4.0 MPa, ensuring optimal performance in diverse applications.
Revolutionizing solid-liquid separation, the variable filter chamber technology finds extensive application across numerous industries including petrochemical, mining, metallurgy, food processing, pharmaceuticals, coal washing, paper production, pigment dyes, and cutting-edge sectors such as new energy lithium batteries, photovoltaics, and fly ash desalination. This versatility not only maximizes production efficiency but also significantly minimizes the moisture content in filter cakes. The pressure range includes conventional diaphragm pressing at 0.8-1.6 Mpa, while for more demanding conditions, ultra-high pressure diaphragm pressing offers options between 2.0-4.0 Mpa, catering to the specific requirements of varied operational scenarios.
In the municipal domestic sludge dewatering sector, the application of advanced high-pressure dewatering technology is transformative, attaining the lowest moisture content standards required for landfill and incineration, with results showing municipal sludge moisture content reduced to an impressive 35%-60%. This innovative approach represents a significant advancement over traditional dewatering equipment, facilitating efficient sludge reduction treatment and setting new benchmarks in environmental management.
Our sophisticated dehydration system offers seamless automated operation, with the capability to integrate a filter cake auxiliary discharge system, an online filter cloth flushing mechanism, and an automatic valve instrument, thus enabling a highly efficient, unmanned operational environment. This level of automation ensures reliability and consistency, optimizing workflow and productivity.
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 proudly been at the forefront of innovation in the filter press and solid-liquid separation industries. As influential contributors to the industry standards for both filter presses and filter plates, our distinguished products consistently rank among the top three in production and sales volume across China. Our expansive manufacturing facilities, sprawling over 570,000 square meters, are staffed by a dedicated team of more than 1,000 professionals committed to excellence.
We are an advanced and intelligent manufacturer, offering comprehensive solutions and services in the field of filter presses and sludge dewatering equipment.
The company boasts three state-of-the-art production bases, eight strategic domestic offices, two international offices, two thriving overseas subsidiaries, and a prestigious Sino-German joint venture focused on high-end filter plate manufacturing. Our innovative spirit is reflected in our portfolio of three invention patents and over 100 utility model patents.
Our commitment to quality and excellence is evidenced by our numerous certifications and accolades, which include ISO 9001 for Quality Management Systems, ISO 14001 for Environmental Management, ISO 18001 for Occupational Health and Safety Management, the renowned EU CE certification, and comprehensive insurance coverage from the People's Insurance Company of China (PICC).
At Shanghai Dazhang, we are dedicated to providing users with superior experiences through cost-effective and innovative design solutions that enhance efficiency and performance.








Q1. Are you a manufacturer or a trader?
We are a seasoned manufacturer with a strong presence in Shanghai, renowned for our commitment to quality and innovation.
Q2. How about the production capacity of your company?
Our factory, sprawling across more than 570,000 square meters,
2 is capable of producing an impressive 9,500 sets of machines each year, ensuring we meet the demands of our clients efficiently.
Q3. How long is the delivery time for bulk orders?
Typically, the delivery time for bulk orders is between 15-30 working days after the deposit is received. However, for larger equipment and special customizations, the delivery period may be extended to accommodate specific requirements.
Q4. What are the payment terms?
Our standard payment terms are via T/T, with an initial deposit required before production begins, following order confirmation. The balance payment is expected after the inspection phase.
Q5. How long is the product warranty period?
Our products come with a one-year warranty under normal use conditions, complemented by lifelong online service support. Please note, the warranty does not cover wearing parts or damages caused by incorrect handling.
Q6. What's the after-sale service of your company?
We offer comprehensive after-sale services, including providing foundation drawings for installation, detailed installation videos, and online guidance. Should your project require on-site assistance, arrangements can be made to have our skilled workers present as per your needs.
Q7. Can your company provide wearing parts?
Yes, we manufacture wearing parts for our clients. If your equipment is not from our production line, we kindly request you to provide detailed drawings of the required wearing parts.