


The cast iron press filter stands as a pinnacle of efficient solid-liquid separation, making it indispensable across various industries including chemical engineering, mining, food processing, and wastewater treatment. Crafted from superior cast iron, it assures remarkable durability and stability, catering to your filtration needs with unwavering reliability.
Product Features
Durable and Robust: Designed with a cast iron structure, it guarantees steadfast operation even under high pressure and extreme temperature conditions, ensuring your processes remain uninterrupted.
High Efficiency Filtration: Its precision-engineered design accelerates the separation process, delivering rapid and effective filtration of solids and liquids, enhancing productivity.
Corrosion Resistance: Specially treated to withstand a variety of chemical media, it offers excellent resilience and long-lasting performance across diverse industrial applications.
Easy Maintenance: Thoughtfully constructed for seamless disassembly and cleaning, it significantly reduces downtime, enabling more focus on your core operations.
Applications
Mining: Expertly handles ore dewatering and tailings treatment, optimizing resource recovery and environmental management.
Chemical Engineering: Efficiently filters chemical raw materials and by-products, ensuring purity and quality in your end products.
Wastewater Treatment: Specializes in sludge dewatering and solid-liquid separation, contributing to sustainable water management practices.
Food Industry: Perfectly suited for the filtration of juices, wines, and other beverages, maintaining flavor integrity and clarity.
Other Industries: Ideal for high-temperature wax removal, providing versatile solutions for complex industrial needs.
Work Principle
The cast iron pressure filter operates by filling the treatment liquid between its resilient filter plates and cloth. Under pressure, the liquid is efficiently channeled through the filter cloth, while solid particles accumulate to form a distinct filter cake. Upon filtration completion, mechanical unloading simplifies the process.
Maintenance and Care
Regular Inspection: Diligently ensure that all connecting parts and seals remain intact to prevent potential water leakage and maintain operational integrity.
Cleaning: Prompt washing of filter cloth and plates post-use prevents residue build-up, safeguarding the equipment's efficiency and longevity.
Lubrication: Consistently lubricate moving components to uphold smooth and seamless operation, minimizing wear and tear.
Summary
With its formidable construction and exceptional performance, the cast iron pressure filter is a vital asset in industrial solid-liquid separation. Adhering to best practices in use and maintenance dramatically boosts production efficiency while reducing operational costs, positioning it as a cornerstone in your production arsenal.
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 has been a pioneering force in the filter press and solid-liquid separation industries. As the esteemed drafters of industry standards for filter presses and plates, our products proudly sit among the top three in production and sales within China. Our expansive manufacturing facilities span more than 570,000 square meters, employing a dedicated workforce exceeding 1,000 professionals.
We are a forward-thinking manufacturer and all-encompassing service provider specializing in cutting-edge filter presses and advanced sludge dewatering equipment.
Our company boasts three robust production bases, eight strategic domestic offices, two dynamic international offices, two thriving overseas subsidiaries, and a prestigious Sino-German joint venture dedicated to high-end filter plate manufacturing. We are proud holders of three innovation-driven invention patents and over 100 practical utility model patents.
We have garnered an impressive array of certifications and accolades, including the esteemed ISO 9001 Quality Management System certification, ISO 14001 Environmental Management System certification, ISO 18001 Occupational Health and Safety Management System certification, the prestigious EU's CE certification, and have secured insurance coverage from PICC, the People's Insurance Company of China.
We are committed to delivering superior user experiences coupled with more cost-effective and innovative design solutions!








Q1. Are you a manufacturer or a trader?
We are a seasoned manufacturer proudly based in Shanghai.
Q2. How about the production capacity of your company?
Our vast factory complex covers over 570,000 square meters
2 and is capable of producing an impressive 9,500 machine sets annually.
Q3. How long is the delivery time for bulk order?
Typically, delivery spans 15-30 working days post-deposit. However, for larger equipment or unique customer specifications, the timeline might be extended.
Q4. What are the payment terms?
Standard practice involves T/T payment. 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?
A one-year warranty is provided for regular use, complemented by lifetime online service. Please note, wear and tear or damages due to incorrect operation are excluded.
Q6. What's the after sale service of your company?
We supply clients with detailed foundation drawings for installation. Additionally, we offer installation videos and online guidance. On-site assistance by our team can be arranged as per your preferences.
Q7. Can your company provide wearing parts?
Yes, we can manufacture wearing parts for our clients. If your equipment is sourced elsewhere, kindly provide the corresponding drawings of the required parts.