


Introducing the cast iron press filter, your ultimate solution for efficient solid-liquid separation across a range of industries including chemical engineering, mining, food processing, and wastewater treatment. Crafted from high-grade cast iron, it promises unparalleled durability and stability, making it a vital asset in your industrial operations.
Product Features
Durable and robust: Our cast iron structure is engineered to deliver consistent performance even under high pressure and extreme temperature conditions, ensuring reliable operation.
High efficiency filtration: Experience superior filtration with an optimized design that accelerates the separation of solids and liquids, achieving faster and more effective results.
Corrosion resistance: Specially treated to withstand a variety of chemical environments, our product guarantees longevity and adaptability.
Easy maintenance: Designed for simplicity, our filter is easy to disassemble and clean, significantly cutting down on maintenance time and effort.
Applications
Mining: Efficiently handle dewatering of ores and tailings treatment with precision.
Chemical engineering: Perfect for filtering chemical raw materials and by-products, ensuring purity and quality.
Wastewater treatment: Expertly manage sludge dewatering and solid-liquid separation to enhance water quality.
Food industry: Ideal for the filtration treatment of juices, wines, and other food processing needs.
Other industries: Capable of high-temperature wax removal and more, showcasing its versatility.
Work Principle
Our cast iron pressure filter operates by introducing the liquid to be treated between the strategically engineered filter plates and filter cloth. Through applied pressure, the liquid is compelled to pass through the filter cloth, leaving behind solid particles that form a robust filter cake. Once the filtration process is complete, mechanical unloading is seamlessly executed.
Maintenance and Care
Regular inspection: Conduct routine examinations of connecting parts and seals to ensure integrity and prevent leakage.
Cleaning: Promptly wash the filter cloth and plates post-use to eliminate residues and maintain optimal performance.
Lubrication: Consistently lubricate moving components to uphold smooth and efficient operation.
Summary
The cast iron pressure filter, with its robust construction and high-performance capabilities, stands as an indispensable tool for industrial solid-liquid separation. By adhering to proper usage and maintenance protocols, you will significantly enhance production efficiency while minimizing operating 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 glorious decades, Shanghai Dazhang Environment Protection Equipment Co., Ltd. has been at the forefront of the filter press and solid-liquid separation industry. As pioneers shaping the standards for filter presses and plates, our products consistently rank among the top three in China in both production and sales. Our expansive manufacturing facilities, sprawling over 570,000 square meters, are home to a dedicated team of more than 1,000 professionals, all committed to delivering excellence.
We pride ourselves as a smart manufacturer and a comprehensive service provider, specializing in filter presses and sludge dewatering equipment.
Currently, our company boasts three state-of-the-art production bases, eight strategic domestic offices, two international offices, two overseas subsidiaries, and a prestigious Sino-German joint venture for high-end filter plate manufacturing. Our innovative prowess is highlighted by our collection of three invention patents and over 100 utility model patents.
Our dedication to excellence and quality is underscored by numerous prestigious certifications and honors. We proudly hold the ISO 9001 Quality Management System certification, ISO 14001 Environmental Management System certification, ISO 18001 Occupational Health and Safety Management System certification, the esteemed EU's CE certification, and we are insured by PICC, the People's Insurance Company of China.
Our mission is to enhance user experiences by providing more cost-efficient and innovative design solutions that redefine industry standards!








Q1. Are you a manufacturer or a trader?
We are a seasoned manufacturer, confidently rooted in Shanghai's vibrant industrial landscape.
Q2. How about the production capacity of your company?
Our expansive factory spans over 570,000 square meters
2 and impressively churns out 9,500 machine sets annually.
Q3. How long is the delivery time for bulk order?
Typically, we ensure delivery within 15-30 working days post-deposit. For larger equipment or when specific custom requirements are involved, the delivery timeline may be extended to accommodate these needs.
Q4. What are the payment terms?
Our payment terms are straightforward: a deposit via T/T is required prior to production, following order confirmation, with the balance due post-inspection.
Q5. How long is the product warranty period?
We offer a one-year warranty period under normal usage conditions, supplemented by a lifetime of online support. Please note, this excludes wear-and-tear parts and issues caused by improper handling.
Q6. What's the after sale service of your company?
Our after-sales service is comprehensive: we provide clients with foundational installation drawings, detailed installation videos, and online guidance. If on-site assistance is necessary, we can arrange for our experts to visit, tailored to your needs.
Q7. Can your company provide wearing parts?
Yes, we manufacture original wearing parts for our equipment. For equipment not produced by us, we require the drawings of the wearing parts for production.