Characteristics of Double Stage Extrusion Unit

NegotiableUpdate on 02/05

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Nature of the Manufacturer: Producers

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Overview

The characteristics of the two-stage extrusion unit include a short aspect ratio of the screw, which can complete plasticization, longitudinal mixing, and stable extrusion granulation under low shear conditions, avoiding overheating and decomposition.

Product Details

Characteristics of Double Stage Extrusion UnitMain technical parameters:

model		screw length-to-diameter ratio	screw speed	main motor	production capacity
Model		L/D	（ Screw Speed ） rpm	（ Driving Motor ）	（ OUtput ） kg/h
SHJS50-100	SHJ-50	24-44	500	37/45	100/300
SHJS50-100	SJ-100	July 15	60/90	22	100/300
SHJS65-150	SHJ-65	24-44	400/500	55/75	200/500
SHJS65-150	SJ-150	July 15	60/90	37/45	200/500
SHJS75-180	SHJ-75	24-44	400/500	90/110	400/800
SHJS75-180	SJ-180	July 15	60/90	45/55	400/800
SHJS95-200	SHJ-95	24-44	400	250	600/1300
SHJS95-200	SJ-200	July 15	60/90	55/75	600/1300

Characteristics of Double Stage Extrusion Unit

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*The SHJ series twin-screw extruder is designed with a combination of barrel and screw, and the discharge end is not equipped with a head. It can fully utilize the advantages of plasticization, mixing ability, good distribution and dispersion effect under no pressure, making PVC and other heat sensitive materials fully plasticized, kneaded, mixed and extruded.
The second stage is the SJ series single screw extruder. The screw has a short aspect ratio and can complete plasticization, longitudinal mixing, and stable extrusion granulation under low shear conditions, avoiding overheating and decomposition.

Daily maintenance methods for twin-screw extruders:

1、 After 500 hours of use,gearboxThere may be iron filings or other impurities from gear wear, so the gears should be cleaned and the gearbox lubricating oil should be replaced.

2、 After a period of use, a comprehensive inspection of the extruder should be conducted to check the tightness of all screws.

3、 If there is a sudden power outage during production, the main drive and heating will stop. When power is restored, each section of the material barrel must be reheated to the specified temperature and kept warm for a period of time before the extruder can be started.

4、 If the full rotation of the instrument and pointer is found, check whether the contact of the thermocouple and other lines is good.