


The Dazhang high-pressure, program-controlled membrane filter press exemplifies cutting-edge innovation with its adoption of internationally acclaimed TPE diaphragm technology. Designed for longevity, this technology offers exceptional membrane elasticity, delivering unparalleled resistance to even the harshest acids and alkalis, making it a versatile choice across numerous industries. The system's adaptability allows for pressing via air or water pressure, with the latter supporting a robust range of 0.8 to 4.0 MPa, ensuring optimal performance tailored to specific industrial requirements.
Embrace the power of variable filter chamber technology, a game-changer in the realm of solid-liquid separation, widely revered across industries including petrochemical, mining & metallurgy, food & pharmaceuticals, coal processing, paper production, pigment & dye manufacturing, and the burgeoning sectors of new energy lithium batteries, photovoltaics, and fly ash desalination. This revolutionary technology not only amplifies production efficiency but also significantly reduces filter cake moisture content. With pressure levels finely categorized into conventional diaphragm pressing at 0.8-1.6 Mpa, and ultra-high pressure diaphragm options reaching 2.0-4.0 Mpa, it effortlessly adapts to meet the diverse demands of varying operational scenarios.
Pioneering high-pressure dewatering technology revolutionizes the municipal domestic sludge dewatering industry, drastically reducing filter cake moisture content to comply with landfill and incineration standards. Achieving municipal sludge moisture content as low as 35%-60%, this advanced system surpasses traditional dewatering methods, offering a transformative solution for effective sludge reduction treatment.
Our state-of-the-art dehydration system is engineered for automated excellence, featuring optional enhancements such as a filter cake auxiliary discharge system, an efficient filter cloth online flushing system, and sophisticated automatic valve instruments. This innovative setup facilitates seamless, unmanned operation, epitomizing modern efficiency in industrial processes.
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 illuminated the landscape of the filter press and solid-liquid separation industries. As key architects of industry standards, our products consistently rank among China's top three in both production and sales volume. Our vast facilities span more than 570,000 square meters, and we proudly employ a dedicated team exceeding 1,000 professionals.
We are at the forefront of innovation as a smart manufacturer and comprehensive service provider, specializing in cutting-edge filter presses and advanced sludge dewatering equipment.
Our company boasts a robust infrastructure with 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 dedicated to crafting high-end filter plates. Our commitment to innovation is underscored by three invention patents and a portfolio of over 100 utility model patents.
With a commitment to excellence, we have garnered numerous certifications and accolades, including 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, and comprehensive insurance coverage from PICC, the People's Insurance Company of China.
Our mission is to deliver superior user experiences, coupled with cost-effective and highly efficient design solutions, elevating the standards of performance and satisfaction!








Q1. Are you a manufacturer or a trader?
We are a seasoned and distinguished manufacturer based in the vibrant city of Shanghai.
Q2. How about the production capacity of your company?
Our expansive factory occupies an impressive area of over 570,000m
2 and boasts a formidable production capacity of 9,500 machines annually.
Q3. How long is the delivery time for bulk order?
Typically, delivery takes 15-30 working days post deposit. However, for larger equipment or specialized customer requirements, delivery times may be extended to ensure utmost precision and satisfaction.
Q4. What are the payment terms?
Our payment terms are straightforward: a deposit via T/T is required prior to production post order confirmation, with the balance payable after a thorough inspection.
Q5. How long is the product warranty period?
Our products come with a one-year warranty under normal use, complemented by a lifelong online service. Please note, wear-and-tear parts and issues from incorrect operation are not covered.
Q6. What's the after sale service of your company?
We are committed to seamless installations, providing clients with foundational drawings. Additionally, installation videos and online guidance are available. Should there be a need for on-site assistance, it's customizable to meet your specific requirements.
Q7. Can your company provide wearing parts?
Certainly! We manufacture wearing parts for our clients. If your equipment is from another manufacturer, kindly supply us with the wearing parts drawing for a customized solution.