


Introducing our cutting-edge Once Open Filter Press, engineered with an extended cylinder and beam for optimized performance. Equipped with a stainless steel chain or slide for seamless filter plate connectivity, this design ensures simultaneous opening of all filter plates during the pressing plate withdrawal. Experience effortless material discharge with our integrated vibration device, ensuring a quick unload and automatic discharge of materials.
Advantages: Experience the pinnacle of high operational efficiency combined with significant labor savings, making our product the preferred choice for productivity and ease of use.
Disadvantages: Best suited for applications involving a limited number of filtering plates, with a recommendation of no more than 30 plates 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 at the forefront of the filter press and solid-liquid separation industries. As pioneering drafters of industry standards for filter presses and plates, our products consistently rank among China's top three in production and sales volume. Our expansive manufacturing facilities span over 570,000 square meters, powered by an experienced team of more than 1,000 professionals.
As a forward-thinking manufacturer, we are committed to providing comprehensive solutions in the realm of filter presses and sludge dewatering equipment.
Our company boasts three state-of-the-art production bases, eight domestic offices, two international offices, two overseas subsidiaries, and a prestigious Sino-German joint venture focused on high-end filter plate production. We pride ourselves on holding three invention patents along with over 100 utility model patents, showcasing our commitment to innovation.
Our dedication to quality has earned us numerous certifications and accolades, including ISO 9001 for Quality Management, ISO 14001 for Environmental Management, ISO 18001 for Occupational Health and Safety, as well as the EU's CE certification. Additionally, we are backed by insurance from PICC, the People's Insurance Company of China.
Our mission is to deliver unparalleled user experiences with design solutions that are both cost-effective and highly efficient, ensuring customer satisfaction at every step.








Q1. Are you a manufacturer or a trader?
We are a seasoned manufacturer, proudly headquartered in the vibrant city of Shanghai.
Q2. How about the production capacity of your company?
Our expansive factory covers over 570,000 square meters,
2 with a robust production capacity of 9,500 machine sets annually.
Q3. How long is the delivery time for bulk order?
Typically, delivery is within 15-30 working days post-deposit. However, for large-scale equipment or specialized customer requirements, the timeline might be extended to accommodate these needs.
Q4. What are the payment terms?
Our standard terms involve an initial deposit via T/T, followed by a balance payment post-inspection, ensuring a smooth financial transaction once your order is confirmed.
Q5. How long is the product warranty period?
Enjoy peace of mind with a one-year warranty for normal use, complemented by lifelong online support. Please note, this excludes wear and tear from improper use.
Q6. What's the after sale service of your company?
We provide comprehensive support, including foundation drawings for installation, detailed installation videos, and online assistance. Should on-site support be required, we can arrange for our experts to assist according to your needs.
Q7. Can your company provide wearing parts?
Indeed, we manufacture wearing parts for our clients. For equipment not produced by us, please provide the relevant drawings so we can assist you accordingly.