Nanjing Gorray has developed single screw extruder with some new features, most of which are targeted for energy-saving, high productivity and easy control.
·Advanced screw design to optimize the output and keep melt at lower temperature;
·Overload protection by reliable flexible coupling;
·Accurate temperature control system;
·Convenient erection & adjustment
Single screw extruder is one of the core extrusion equipments in polymer processing and is also a key component in many other processing operations. The preliminary aim of a single screw extruder is to build pressure in the polymer melt. With sufficient pressure the melt can be extruded through a die or injected into a mold. A single screw extruder brings in solids in either pellet or powder form and melts them as well as building the pressure.
Thus a single screw extruder is widely used for direct extrusions such as sheet extrusion, film extrusion, pipe extrusion, tube extrusion and profile extrusion.
In some cases, those pro-water polymers such as PET, PMMA, PC need venting or vacuum. So a high efficiency venting system will be furnished. In plastic recycling process, venting of a single screw extruder turns out to be a necessity.
A single screw extruder can be a good match for twin screw extruder, which is herein referred to as dual stage extrusion line in Nanjing Gorray, a new experienced extruder supplier in China.
Single Screw Extruder Specifications
Model |
Screw Diameter(mm) |
L/D Ratio |
RPM |
Motor Power(kw) |
Capacity (kg/h) |
SJ20 |
20 |
28-32 |
150 |
3 |
3-10 |
SJ30 |
30 |
28-32 |
150 |
11 |
10-30 |
SJ45 |
45 |
28-32 |
120 |
22 |
50-80 |
SJ65 |
65 |
28-32 |
93 |
55 |
80-150 |
SJ90 |
90 |
28-32 |
93 |
90 |
100-350 |
SJ120 |
120 |
28-32 |
93 |
132 |
200-600 |
SJ150 |
150 |
28-32 |
75 |
220 |
400-800 |
SJ180 |
180 |
28-32 |
75 |
315 |
500-1000 |
SJ200 |
200 |
28-32 |
65 |
400 |
700-1500 |
SJ220 |
220 |
28-32 |
50 |
500 |
800-1800 |
SJ240 |
240 |
28-32 |
50 |
600 |
1000-2500 |
Single Screw Extruder with Venting or/and Vacuum
Specifications
Model |
Screw Diameter (mm) |
L/D Ratio |
RPM |
Motor Power(kw) |
Capacity (kg/h) |
SJP30 |
30 |
28-32 |
150 |
11 |
10-30 |
SJP45 |
45 |
28-32 |
120 |
30 |
30-60 |
SJP65 |
65 |
28-32 |
93 |
55 |
40-120 |
SJP90 |
90 |
28-32 |
93 |
90 |
120-280 |
SJP120 |
120 |
28-32 |
93 |
132 |
200-450 |
SJP150 |
150 |
28-32 |
75 |
220 |
400-600 | |