- Compact design, low capital cost, low operating cost
- Streamlined flow path, minimum residence time
- Quick switch over time that less than 3 second
- Leakage free under the pressure of 35MPa
- Working temperature up to 250 C°
Extrusion Screen Changers
Harden Machinery is the premier designer and manufacturer in China for extrusion melt filtration system. Our screen changers are widely used in plastics, rubber, and adhesive extrusion industries. We have been supplying screen changers to some of the major extrusion line manufacturers in China and many customers around the world has chosen our screen changer as a low cost alternative for its reliable quality.
Product Range
The manual operated screen changers are low cost, easy to operate, and compact in size. It is used in those processes that pressure fluctuation is not the major concern, such as blown film lines and recycling pelletizing lines.
The hydraulic operated sliding plate screen changers are inexpensive, easy to operate, and can be operated automatically. It is used in those processes that pressure fluctuation is not a big problem, such as sheet extrusion lines and recycling pelletizing lines.
The hydraulic operated piston screen changers can provide better melt sealing and can be operated automatically. It is used in those processes that melt viscosity are relatively low and melt pressure fluctuation is desirably small. This kind of screen changers have one or two bolts, each bolt can have one or two filter pack. The melt pressure fluctuation can be very small when using a two bolt four filter pack screen changer.
Manual Screen Changers
| Model | Screen Diameter |
|---|---|
| 30 | 30mm (1 ¼”) |
| 45 | 45mm (1 ¾”) |
| 65 | 65mm (2 ½”) |
| 90 | 90mm (3 ½” ) |
| 120 | 120mm (4 ¾”) |
| 150 | 150mm (5 ⅞”) |
Hydraulic Sliding Plate Screen Changers
| Model | Screen Diameter |
|---|---|
| 30 | 30mm (1 ¼”) |
| 45 | 45mm (1 ¾”) |
| 65 | 65mm (2 ½”) |
| 90 | 90mm (3 ½” ) |
| 120 | 120mm (4 ¾”) |
| 150 | 150mm (5 ⅞”) |
| 200 | 200mm (7 ⅞”) |
Hydraulic Single/Dual Piston (Bolt) Screen Changers
| Model | Screen Diameter |
|---|---|
| 30 | 30mm (1 ¼”) |
| 45 | 45mm (1 ¾”) |
| 65 | 65mm (2 ½”) |
| 90 | 90mm (3 ½” ) |
| 120 | 120mm (4 ¾”) |
| 150 | 150mm (5 ⅞”) |
| 200 | 200mm (7 ⅞”) |
| 250 | 250mm (9 ⅞”) |
Screen changers made in China for your melt filtration needs of your extrusion lines. We specialized in precision machine manufacturing.
