


The Cast Iron Press Filter is a remarkably efficient solid-liquid separation apparatus, indispensable across various sectors including chemical engineering, mining, food processing, and wastewater management. Crafted from resilient cast iron, this equipment guarantees outstanding durability and unwavering stability, making it a long-lasting asset in any industry.
Product Features
Unyielding Durability and Robustness: Boasting a cast iron structure, this equipment delivers unshakable reliability, even under the most demanding high-pressure and high-temperature conditions.
Superior Filtration Efficiency: With an optimized configuration, this filter ensures a swift and highly effective separation of solids and liquids, elevating your operational efficiency to new heights.
Exceptional Corrosion Resistance: Specially treated to withstand diverse chemical media, ensuring longevity and versatility in various applications.
Effortless Maintenance: Designed for easy disassembly and cleaning, this system minimizes downtime and streamlines maintenance efforts.
Applications
Mining Industry: Optimal for dewatering ores and managing tailings, streamlining mining operations.
Chemical Engineering: Perfect for filtering chemical raw materials and by-products, enhancing product purity and quality.
Wastewater Treatment: Ideal for sludge dewatering and comprehensive solid-liquid separation, promoting environmental sustainability.
Food Industry: Efficiently handles the filtration of juices, wines, and more, ensuring product clarity and taste.
Other Industries: Exceptional at high-temperature wax removal, expanding its utility beyond traditional applications.
Work Principle
Operating seamlessly, the Cast Iron Pressure Filter channels the liquid to be treated between filter plates and cloth. Under pressure, the liquid permeates the filter cloth, leaving behind solid particles to form a robust filter cake. Once filtration is complete, mechanical unloading facilitates efficiency.
Maintenance and Care
Routine Inspections: Regularly check that all connecting components and seals are intact to prevent any leakage, ensuring optimal performance.
Cleaning Protocols: Immediately wash the filter cloth and plates post-use to prevent residue build-up, maintaining equipment hygiene.
Regular Lubrication: Keep moving parts well-lubricated to guarantee smooth and faultless operation throughout its lifetime.
Summary
With its robust architecture and exceptional performance, the Cast Iron Pressure Filter is a vital instrument in industrial solid-liquid separation. Adhering to proper usage and maintenance protocols will significantly boost production efficiency and cut down on 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 trailblazer in the field of filter presses and solid-liquid separation solutions. As leading architects of the industry standards for both filter presses and plates, we take pride in ranking among the top three producers by volume in China. Spanning an expansive 570,000 square meters, our manufacturing facilities are the backbone of our innovation, supported by a dedicated team of over 1,000 talented professionals.
We are not just manufacturers; we are pioneers, offering intelligent manufacturing and a comprehensive suite of services in filter press technology and sludge dewatering equipment.
Our company operates with a robust infrastructure comprising three state-of-the-art production bases, eight domestic offices, two strategically located international offices, two overseas subsidiaries, and a prestigious Sino-German joint venture for advanced filter plate manufacturing. Our commitment to innovation is evidenced by our ownership of three invention patents and a substantial portfolio of over 100 utility model patents.
Our excellence is recognized through numerous certifications and accolades, including the ISO 9001 Quality Management System certification, ISO 14001 Environmental Management certification, ISO 18001 Occupational Health and Safety certification, the EU's esteemed CE certification, and comprehensive insurance coverage from PICC, the People's Insurance Company of China.
We are relentless in our pursuit to provide superior user experiences and design solutions that are both cost-effective and highly efficient!








Q1. Are you a manufacturer or a trader?
We are a seasoned manufacturer based in the vibrant city of Shanghai.
Q2. How about the production capacity of your company?
Our extensive factory spans over 570,000 square meters,
2 enabling us to produce an impressive 9,500 machines annually.
Q3. How long is the delivery time for bulk order?
Typically, delivery is within 15-30 working days post-deposit. For larger equipment or custom specifications, delivery timelines may be adjusted accordingly.
Q4. What are the payment terms?
Our standard payment method is T/T, with an initial deposit required upon order confirmation, followed by a balance payment post-inspection.
Q5. How long is the product warranty period?
Our products come with a one-year warranty under normal usage, complemented by lifelong online service. Note: This excludes wearing parts and issues arising from operational errors.
Q6. What's the after sale service of your company?
We provide comprehensive after-sales support, including foundation drawings for installation, instructional videos, and online assistance. Should on-site support be required, arrangements can be made to accommodate your needs.
Q7. Can your company provide wearing parts?
Yes, we manufacture wearing parts for our machines. For non-Dazhang equipment, simply provide the relevant drawings, and we'll assist you.