Jwell Hydraulic Screen Changer with Single Plate and Dual Positions
This hydraulic screen changer uses a single plate with two working positions, pressure-adaptive sealing, internal heating, and a modular extruder interface.
Key Selling Points
- Service Access:The extruder screw can pass through the unit for easier removal and cleaning.
- Adaptive Sealing:Polymer pressure drives the documented sealing elements.
- Model Range:Nine models cover listed outputs from 50-100 to 1100-2000 kg/h.
- Modular Connection:Designed for different standard extrusion machines.
- Internal Heating:Enclosed wiring and internal heating support line integration.
Technical Parameters
| Model | Output (kg/h) | Filter Size (mm) | Filtration Area (mm²) | Max. Pressure (MPa) | Heating Zones | Heating Power (kW) |
| JW-DB-50 | 50-100 | Φ55 | 1960 | 30 | 2 | 5 |
| JW-DB-70 | 80-150 | Φ75 | 3850 | 30 | 2 | 6 |
| JW-DB-100 | 150-350 | Φ105 | 7850 | 30 | 3 | 6 |
| JW-DB-120 | 250-400 | Φ125 | 11300 | 30 | 3 | 6.4 |
| JW-DB-150 | 350-600 | Φ155 | 17670 | 25 | 3 | 7 |
| JW-DB-180 | 450-1000 | Φ185 | 25440 | 25 | 3 | 8 |
| JW-DB-200 | 550-1300 | Φ205 | 31415 | 20 | 3 | 12 |
| JW-DB-250 | 850-1700 | Φ255 | 49087 | 20 | 3 | 13 |
| JW-DB-300 | 1100-2000 | Φ305 | 70685 | 20 | 3 | 14 |
Product Description
A hydraulic screen changer with a single plate and two working positions provides controlled melt-filtration changes for extrusion lines. This JWELL configuration combines hydraulic actuation with a compact sliding-plate arrangement and is offered in nine documented models for different output and filtration requirements.
The extruder screw can be withdrawn directly through the screen changer, making disassembly and cleaning more convenient. Pressure-adaptive sealing uses polymer pressure before the screen to drive the sealing components, supporting effective sealing and faster screen changes. Penetrating bolts connect the unit to the extruder, while the modular construction is intended to suit different standard extrusion machines.
An internal heating device is documented for safe, energy-conscious operation, with fully enclosed wiring. The source model range covers output from 50-100 kg/h on JW-DB-50 to 1100-2000 kg/h on JW-DB-300. Filter diameters range from 55 to 305 mm, filtration areas from 1,960 to 70,685 mm², and listed maximum pressure from 30 down to 20 MPa by model. Heating zones and powers also vary by size.
For procurement, match the hydraulic screen changer to polymer, output, filtration size, operating pressure and temperature, extruder connection, available space, and change procedure. Confirm hydraulic-station scope, flange dimensions, controls, screen specification, and operating limits with engineering. The listed table values are preserved from the supplied document and should be confirmed against the final project drawing.
Applications and Selection Notes
Use only with the documented polymers and extrusion functions described above. Final selection requires confirmation of resin, output, temperature, pressure, filtration or layer requirements, and line interfaces.
