


The cast iron press filter is a powerhouse of efficiency in solid-liquid separation, seamlessly integrated across an array of industries including chemical engineering, mining, food processing, and wastewater treatment. Crafted from durable cast iron, it offers unparalleled longevity and unwavering stability, making it an indispensable asset in demanding environments.
Product Features
Durable and robust: The resilient cast iron framework guarantees steadfast operation even under the most challenging high pressure and temperature conditions.
High efficiency filtration: Its cutting-edge design accelerates the separation process, achieving rapid and highly effective solid-liquid distinction.
Corrosion resistance: Ingeniously treated to withstand diverse chemical media, enhancing its adaptability in various industrial applications.
Easy maintenance: Designed for effortless disassembly and cleaning, significantly minimizing downtime and streamlining maintenance routines.
Applications
Mining: Expertly manages ore dewatering and tailings treatment with precision.
Chemical engineering: Efficiently filters chemical raw materials and by-products, ensuring purity and performance.
Wastewater treatment: Exemplary in sludge dewatering and effective solid-liquid separation, contributing to cleaner outputs.
Food industry: Perfectly suited for the filtration needs of juices, wines, and other consumables, ensuring quality and taste.
Other industries: Excels in high-temperature wax removal, catering to specialized industrial demands.
Work Principle
The innovative cast iron pressure filter operates by channeling the liquid to be processed into the space between its engineered filter plates and cloth. Through applied pressure, the liquid is expertly forced through the filter cloth, leaving solid particles behind to form a filter cake. Upon completion of the filtration process, efficient mechanical unloading is performed.
Maintenance and Care
Regular inspection: Diligently ensure all connecting components and seals are in perfect condition to avert any leakage issues.
Cleaning: Promptly wash the filter cloth and plates post-use to eliminate residue, maintaining optimal function.
Lubrication: Consistently lubricate moving components to guarantee seamless and efficient operation.
Summary
The cast iron pressure filter stands out as a critical instrument in industrial solid-liquid separation, thanks to its robust design and superior performance. Adhering to proper usage and maintenance not only boosts production efficiency but also significantly trims down operational costs.
Model |
Area(m2) |
Imm
Plate size |
Cake thickness(mm) |
chamber volume(L) |
Plate Oty(pcs) |
Frame Oty(pcs) |
Filtration
pressure(Mpa) |
Weight(kg) |
Dimensions
LxWxH(mm) |
Foundation Size (mm)
|
|
B |
D |
H |
BQ1/320-25 |
|
380×380 |
225 |
13 |
4 |
6 |
0.6 |
380 |
1150×760×650 |
700 |
150 |
650 |
460 |
BQ2/320-25 |
2 |
25 |
9 |
10 |
500 |
1390×760 x650 |
940 |
BQ3/320-25 |
|
38 |
14 |
15 |
620 |
1750x760x650 |
1300 |
BQ4/450-25 |
|
500x500 |
51 |
9 |
10 |
0.6 |
1060
1160 |
1780×870×880
2055×870x880 |
1355
1605 |
180 |
700 |
620 |
BQ6/450-25 |
6 |
76 |
14 |
15 |
BQ8/450-25 |
|
102 |
190 |
20 |
1360 |
2305×870×880 |
1855 |
BQ12/450-25 |
12 |
152 |
29 |
30 |
1530 |
2785x870×890 |
2355 |
BQ16/450-25 |
16 |
203 |
39 |
40 |
1760 |
3305x870x880 |
2855 |
XQ4/450-25 |
|
51 |
9 |
- |
960 |
1900x870x880 |
1330 |
180 |
700 |
620 |
XQ6/450-25 |
6 |
76 |
14 |
1140 |
2030×870x880 |
1580 |
XQ8/450-25 |
8 |
102 |
19 |
1460 |
2280×870×880 |
1830 |
XQ12/450-25 |
12 |
162 |
29 |
1960 |
2780×870x880 |
2330 |
XQ16/450-25 |
16 |
203 |
39 |
2460 |
3280x870x880 |
2830 |
BQ20/630-25 |
20 |
700×700 |
290 |
24 |
25 |
0.6 |
3300 |
2750x1160×1100 |
2270 |
400 |
1000 |
820 |
BQ30/630-25 |
30 |
452 |
37 |
38 |
4500 |
3220×1150×1100 |
2920 |
BQ40/630-25 |
40 |
496 |
49 |
50 |
5600 |
2870×1150,1100 |
3670 |
BY20/630-25 |
20 |
298 |
24 |
25 |
3700 |
2960×1150×1100 |
2490 |
400 |
1000 |
820 |
BY30/630-25 |
30 |
452 |
37 |
38 |
5000 |
3610×1150x1100 |
3140 |
BY40/630-25 |
40 |
595 |
49 |
50 |
6100 |
4210x1150x1100 |
3740 |
XQ20/630-25 |
20 |
248 |
24 |
- |
3400 |
2800x1100x1100 |
2300 |
400 |
1000 |
820 |
XQ30/630-25 |
30 |
377 |
37 |
4700 |
3250×1100×1100 |
2950 |
XQ40/630-25 |
40 |
495 |
49 |
5900 |
3900×1100x1100 |
3600 |
XY20/630-25 |
20 |
248 |
24 |
3800 |
2950×1100x1100 |
2460 |
400 |
1000 |
820 |
XY30/630-25 |
30 |
377 |
37 |
5200 |
3580×1100×1100 |
3110 |
XY40/630-25 |
40 |
496 |
49 |
6400 |
4180×1100×1100 |
3710 |
Model |
Area(m2) |
Plate size(mm) |
Cake thickness(mm) |
Filter
chamber volume(L) |
Plate NO.(pcs) |
Filtration
pressure(Mpa) |
Weight(Kg) |
Dimensions
LxWxH(mm) |
Foundation Size(mm) |
L |
B |
D |
H |
XZ50/870-30 |
50 |
800×800 |
30 |
730 |
38 |
0.6 |
9000 |
4170×1300×1300 |
2795 |
500 |
1250 |
870 |
XZ60/870-30 |
60 |
883 |
46 |
10800 |
4560×1300×1300 |
3195 |
XZ70/870-30 |
70 |
1036 |
54 |
12000 |
4960×1300×1300 |
3595 |
XZ80/1000-30 |
80 |
930×930 |
1194 |
45 |
0.6 |
13800 |
4775× 1400 x 1400 |
3420 |
600 |
1300 |
900 |
X790/1000-30 |
90 |
1323 |
51 |
15500 |
5245×1400×1400 |
3750 |
XZ100/1000-30 |
100 |
1479 |
57 |
16800 |
5915× 1400×1400 |
4080 |
XZ80/1200-30 |
80 |
1130×1130 |
1226 |
31 |
0.6 |
17600 |
4100×1620×1520 |
3020 |
750 |
1500 |
920 |
XZ90/1200-30 |
90 |
1379 |
35 |
18800 |
4340 × 1620 × 1520 |
3260 |
XZ100/1200-30 |
100 |
1532 |
39 |
20800 |
4580×1620×1520 |
3500 |
XZ120/1200-30 |
120 |
1838 |
47 |
23500 |
5060 ×1620 × 1520 |
3980 |
XZ150/1200-30 |
150 |
2300 |
59 |
27500 |
5780×1620×1520 |
4700 |
XZ180/1200-30 |
180 |
2758 |
71 |
31500 |
6500×1620×1520 |
5420 |
Model |
Area(m2) |
Plate size(mm) |
Cake thickness(mm) |
Filter
chamber volume(L) |
Plate Qty(pcs) |
Frame Qty(pcs) |
Filtration
pressure(Mpa) |
Weight(kg) |
Dimensions
LxWxH(mm) |
Foundation Size(mm) |
L |
B |
D |
H |
BY40/870-25 |
40 |
800×800 |
25 |
496 |
30 |
31 |
0.6 |
6400 |
3550×1380x1300 |
2980 |
500 |
1250 |
870 |
BY50/870-25 |
50 |
624 |
38 |
39 |
7650 |
3970×1380×1300 |
3420 |
BY60/870-25 |
60 |
752 |
46 |
47 |
8900 |
4420×1380×1300 |
3870 |
BY70/870-25 |
70 |
880 |
54 |
55 |
10500 |
4870×1380×1300 |
4318 |
BY80/870-25 |
80 |
1008 |
62 |
63 |
11800 |
5320×1380×1300 |
4770 |
XY40/870-30 |
40 |
30 |
595 |
30 |
|
0.6 |
6750 |
3500×1380×1300 |
2950 |
500 |
1250 |
870 |
XY50/870-30 |
50 |
749 |
38 |
8100 |
3720×1380×1300 |
3175 |
XY60/870-30 |
60 |
902 |
46 |
9400 |
3950 ×1380x1300 |
3400 |
XY70/870-30 |
70 |
1056 |
54 |
11100 |
4180×1380×1300 |
3620 |
XY80/870-30 |
80 |
1210 |
62 |
12500 |
4400×1380x1300 |
3850 |


For over two decades, Shanghai Dazhang Environment Protection Equipment Co., Ltd. has been a beacon of innovation and excellence in the realm of filter presses and solid-liquid separation. As the principal architects of the industry's standards for both filter presses and filter plates, our products consistently secure a top-three position in China's production and sales rankings. Our expansive manufacturing facilities, sprawling across more than 570,000 square meters, are powered by a dedicated workforce of over 1,000 skilled professionals.
Pioneers in intelligent manufacturing, we are a comprehensive service provider specializing in state-of-the-art filter presses and sludge dewatering equipment.
Our company proudly operates three state-of-the-art production bases, complemented by eight strategic domestic offices, two international outposts, two overseas subsidiaries, and a prestigious Sino-German joint venture focused on premium filter plate production. We hold a distinguished portfolio of three invention patents and boast over 100 utility model patents, underscoring our commitment to innovation.
Shanghai Dazhang has garnered an impressive array of certifications and accolades, including the ISO 9001 Quality Management System certification, ISO 14001 Environmental Management System certification, and ISO 18001 Occupational Health and Safety Management System certification. Additionally, we hold the esteemed EU CE certification and benefit from comprehensive insurance coverage by PICC, the People's Insurance Company of China.
Our unwavering mission is to deliver exceptional user experiences through innovative, cost-effective, and highly efficient design solutions tailored to meet your needs.








Q1. Are you a manufacturer or a trader?
We are a seasoned manufacturer strategically located in the bustling city of Shanghai.
Q2. How about the production capacity of your company?
Our expansive factory covers an impressive area exceeding 570,000 square meters
2 and boasts a remarkable annual production capability of 9,500 machines.
Q3. How long is the delivery time for bulk order?
Typically, delivery is executed within 15-30 working days post-deposit. However, for larger equipment or when specific customization is requested, the delivery timeline may be extended to accommodate unique requirements.
Q4. What are the payment terms?
Our standard payment procedure involves T/T transactions. An initial deposit is required before production commences, following order confirmation, with the balance due post-inspection.
Q5. How long is the product warranty period?
We offer a one-year warranty under normal usage conditions, accompanied by lifelong online support. Exclusions apply to wear-and-tear parts and issues arising from improper operation.
Q6. What's the after sale service of your company?
We provide clients with comprehensive foundation drawings for seamless installation. Additionally, we offer installation videos and real-time online guidance. Should on-site assistance be required, our team is available to meet your specific needs.
Q7. Can your company provide wearing parts?
Absolutely, we can manufacture wearing parts for your equipment. If your machinery was not produced by us, simply supply us with the drawings of the required wearing parts.