


Experience an unparalleled level of efficiency with our Once Open Filter Press, designed to elevate your operations. This state-of-the-art machine features an extended cylinder and beam, with each filter plate seamlessly connected via S.S. chain or slide. This ensures simultaneous opening of all filter plates during withdrawal of the pressing plate, optimizing your workflow. Additionally, the integrated vibration device facilitates rapid unloading and automatic discharge of materials, streamlining your process like never before.
Advantages: Unleash the power of high efficiency and significant labor savings with this advanced filtration solution.
Disadvantages: Best suited for setups with a limited number of filter plates, ideally not exceeding 30pcs. We recommend specific plate types to ensure optimal performance.
Mode |
Filter area(m2) |
Plate size(mm) |
Cake thickness(mm) |
Filter
chamber volume(L) |
Plate Qty(pcs) |
Filtration pressure(Mpa) |
Motor Power(Kw) |
Weiaht(Kg) |
Dlimsaneione
LxWxH(mm) |
Foundation Size(mm) |
L |
B |
D |
H |
XY4/450-30U |
4 |
500×500 |
30 |
60 |
9 |
0.6 |
2.2 |
890 |
2230×800×900 |
1550 |
390 |
700 |
560 |
XY5/450-30U |
5 |
79 |
12 |
920 |
2630x800 x.900 |
1800 |
XY6/630-30U |
6 |
700×700 |
95 |
7 |
0.6 |
2.2 |
1450 |
2200×1050×1150 |
1490 |
560 |
1110 |
700 |
XY8/630-30U |
8 |
119 |
9 |
1500 |
2400×1050×1150 |
1640 |
XY10/630-30U |
10 |
154 |
12 |
1610 |
2540×1050×1150 |
1890 |
XY12/630-30U |
12 |
178 |
14 |
1720 |
3130×1050×1150 |
2140 |
XY15/630-30U |
15 |
226 |
18 |
1880 |
3550×1050×1150 |
2490 |
XY10/870-30U |
10 |
870×870 |
154 |
7 |
0.6 |
2.2 |
1940 |
2720×1270×1300 |
1580 |
700 |
1380 |
785 |
XY20/870-30U |
20 |
307 |
15 |
2230 |
3500×1270×1300 |
2430 |
XY18/1000-30U |
18 |
1000×1000 |
270 |
10 |
0.6 |
4 |
1850 |
3470×1400×1400 |
2320 |
780 |
1480 |
1000 |
XY35/1000-30U |
35 |
525 |
20 |
2540 |
5470×1400×1400 |
3620 |
XY28/1250-30U |
28 |
1250×1250 |
420 |
10 |
0.6 |
4 |
3600 |
4110×1770×1600 |
3220 |
850 |
1740 |
1250 |
XY55/1250-30U |
55 |
833 |
20 |
5000 |
6510×1770×1600 |
4320 |


For over two decades, Shanghai Dazhang Environment Protection Equipment Co., Ltd. has been a pioneer in the filter press and solid-liquid separation industries. As a key contributor to the establishment of industry standards for filter presses and filter plates, we have consistently ranked among the top three in China for production and sales volume. Our expansive manufacturing facilities span more than 570,000 square meters, employing a dedicated workforce of over 1,000 professionals.
As a leading smart manufacturer, we offer comprehensive services in the production of filter presses and sludge dewatering equipment, standing at the forefront of innovation and efficiency.
Our company boasts three strategically located production bases, eight domestic offices, two international branches, two overseas subsidiaries, and a high-end joint venture with German expertise in filter plate manufacturing. We pride ourselves on holding three invention patents and over 100 utility model patents, underscoring our commitment to technological advancement.
Our dedication to quality and excellence is reflected in our numerous certifications and accolades, including ISO 9001 for Quality Management, ISO 14001 for Environmental Management, ISO 18001 for Occupational Health and Safety, the prestigious EU's CE certification, and comprehensive insurance coverage through 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 highly efficient, ensuring satisfaction and value for all our clients.








Q1. Are you a manufacturer or a trader?
We are a seasoned manufacturer based in the vibrant city of Shanghai, bringing years of expertise to the table.
Q2. How about the production capacity of your company?
Our expansive factory covers an area exceeding 570,000m
2 and boasts an impressive annual production capacity of 9,500 machines.
Q3. How long is the delivery time for bulk order?
Typically, we deliver within 15-30 working days post-deposit. However, for larger equipment or special customer requirements, the delivery timeline may be extended.
Q4. What are the payment terms?
Our standard payment terms involve an initial deposit via T/T before production commences, with the balance due post-inspection.
Q5. How long is the product warranty period?
Our products come with a one-year warranty for regular use, alongside lifelong online service. Please note, this excludes wear parts and issues resulting from incorrect operation.
Q6. What's the after sale service of your company?
We provide clients with detailed foundation drawings for installation, supplemented by installation videos and online guidance. On-site assistance by our technicians can be arranged as per your specific needs.
Q7. Can your company provide wearing parts?
Yes, we manufacture wearing parts for our equipment. If your equipment is sourced from another manufacturer, kindly supply the drawings for the required parts.