| Key Technical Parameters | SJZS-20 | SJZS-20A |
| Screw diameter (mm) | 20/40 | 20/53 |
| Screw thread length (mm) | 390 | 480 |
| The screw rotation speed (rpm) | 0-50 | 51 |
| Barrel form | Do not open | Do not open |
| Main motor power( kw) | 1.5 | 2.2 |
| Circulating extrusion dosage (g/per time) | without | without |
| Direct extrusion dosage (max kg/h) | 6 | 6 |
| Heating power (kw) | 4.5 | 5 |
| Feed 1 power (W) | 25(optional) | 25 |
| Feed 2 power (W) | without | 25 |
| Power of vacuum exhaust and dehumidification device (W) | 250(optional) | 250(optional) |
| Nitrogen protection | have | have |
| Size (mm) | 1020x450x600 | 1120x450x600 |
Characteristics of experimental mini twin cones twin screw extruder:
1, low raw material consumption, low energy consumption, suitable
for all kinds of thermoplastic polymer materials experimental
research.
2, easy operation, good plasticizing performance, dispersion is
super uniform, can be recycled or continuous extrusion, a maximum
circulation extrusion dosage of 15-18g.
3. The barrel can be opened, and the screw is detachable for
convenient cleaning.
4, variable-frequency and variable-speed motor, 220V, speed
0-51rpm.
5, the equipment power supply is 220V, the heating speed is fast.
6, the number of temperature control area is 5, instrument
temperature control, temperature control range 0-450°.
7, optional control system for PLC touch screen, can store multiple
formula and processing process parameters.
8, the machine cylinder cavity has nitrogen protection device.
9. Variable frequency control feeding device is optional
10, suitable for almost all thermoplastic polymer materials, such
as: polyimide, PEEK, polyphenylene sulfide, PLA, PA, polycarbonate
or add porcelain powder, ceramic powder, graphene,
polytetrafluoroethylene powder, metal powder, short glass fiber
(powder grade can reach nanoscale)
11. The material can be recirculated in the cavity for many times,
and the circulation time can be set and the melt pressure can be
controlled during the recirculation.
12, the screw cavity can be opened, can observe and intercept the
melting and polymerization of the material on the different part of
the screw.
13, small occupancy area, can be used on the test bench or fume
hood. The experiment time is short, from melting, polymerization,
extrusion to injection molding spline the whole process can be
finished for ten minutes. It saves researchers a lot of valuable
time.
14, feeding device predicted quantity device, according to the
different shapes of raw materials, different specific gravity for
measuring and weighing, find out feed amount per turn of feeding
screw (feed amount per unit frequency) can achieve precision
batching.
15. Set the second feeding delay stop time to achieve the
synchronization of the two feeding ports.
16. It can be used with the miniature injection machine produced by
our factory. The material can be directly entered into the
injection sleeve of the injection machine, and directly injected
into the required spline and various injection products.
(Convenient to use and avoid secondary processing)
17, the replacement of different head combined with different
auxiliary machines produced by our company can make sheet, flat
film, round film, extrusion tube, cutting, one-way drawing, blowing
bottle, all kinds of substrate coating, profile, etc.
