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JZL-80 Double Screw Driven Extruder With Cutter

JZL-80 Double Screw Driven Extruder With Cutter

Extrusion is a technique used to process wet powder mass into homogeneous strands of material prior to spheronization. This JZL80 model screw extruder is front discharge, equipped with cutting knives to control the granule length.

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Product Description
Technical Data
Working Principle
Main Components

DOUBLE SCREW EXTRUDER

The popularity of twin screw extruders is attributed to its versatility and applicability to a remarkably wide range of materials. Besides this, extruders allow continuous processing and are capable of delivering high value, high quality products in large quantities. The growing number of industrial applications of extrusion technology in the last few decades has led to an increasing interest in understanding the extrusion process. However, the complexity of the extrusion process such as the shear, mixing, flow performance and the material interaction make the study very challenging and empirical approaches have made little contribution to the fundamental understanding of the process.

JUNZHUO MACHINERY single/double screw extruder is suitable for most low pressure wet extrusion processes used in solid dosage processing. Extrusion performed by two detachable, contra rotating gears. This action generates minimum heat and does not work the product excessively. This makes it ideally suited for extruding pharmaceutical products. Feeding can be done manually or automatically by auger feed.

Screw driven extruders (with radial or axial output)

Axial Press extruder has either single or twin screws, depending on the output required, which transfers the materials to the flat die. The thickness of the die can be provided as different thickness to deliver a range of compressive energies. The axial die perforation size range available from 0.8 to 5 mm with varying thickness up to 5 mm.

It is possible to add cooling systems to screw driven extruders but these vary in efficiency at keeping the product cool during the process even though they may keep the equipment cool! It is recommended if you have restrictions on the amount of heat allowed, that any screw driven extruder is carefully considered. It is also advisable to measure the product temperature of the extrudate produced. This is particularly true if you need to extrude product through very small holes.

Radial extruder is used for the conversion of dough material and wetted powders in uniform size granules by adding binders. These extruders are immensely used in ceramics, herbals, polymers, catalysts, food, sugar industries and pharmaceutical industries. The extruder typically consists of two semi-cylindrical screens along each side of two counter rotating extruder heads. Each head consists of a truncated cone with three attached blades. A twin screw feeds paste into the space between the extruder heads and the screens. The relative motion between the screen and the blade causes the paste to be extruded through the screen in the vicinity of the blade. Compared to other technologies, radial screen extruders produce granules with medium density and hardness.

Double Screw Driven Extruder With Axial Output

Salient Features :

Designed as per cGMP – Current Good Manufacturing Practices
Contact parts in AISI 316, AISI 304 or MS as desired by customer.
Different models in extruders such as Single Screw extruder, Double Screw Extruder,Axial extruder, Radial extruder.
Length of extrusions is adjustable.
Up to 90% uniformity (substantially formulation dependent).
Change of extrusion diameter/ Pellet size by changing screen sieve.
Continuous cooling arrangement during extrusion operation for pressing roller.

Model	JZL-50	JZL-80	JZL-100	JZL-120	JZL-140	JZL-180	JZL-200(customized design)	JZL-200
Capacity	10-80kg/h	30-180 kg/h	30-300 kg/h	30-450 kg/h	150-500 kg/h	500-1200 kg/h	200-2500 kg/h	200-2500 kg/h
Screen Sieve	φ1-8mm	φ1-8mm	φ1-8mm	φ1-8mm	φ2-8mm	φ2-20mm	φ2-20mm	φ2-20mm
Screw Diameter	φ50*2	φ78*2	φ100*2	φ120*2	φ138*2	φ180*2	φ200*2	φ200*2
Motor Power	2.2kw	4kw	5.5kw	7.5kw	11-15kw	22-30kw	30kw	40kw
Rotation Speed	80r/min	80r/min	80r/min	70r/min	60r/min	60r/min	60r/min	60r/min
Overall Size	820440720mm	12006001000mm	14006501200mm	15006501250mm	20007501150mm	244014501200mm	245016501200mm	268016501200mm
Approx. Weight	170kg	450kg	650kg	780kg	1100kg	2000kg	1750kg	3000kg

Double Screw Driven Extruder With Axial Output Working Principle

Twin screw extruders consist of two intermeshing, co-rotating screws mounted on splined shafts in a closed barrel. Due to a wide range of screw and barrel designs, various screw profiles and process functions can be set up according to process requirements. The major advantage of intermeshing co-rotating twin screw extruders is their remarkable mixing capability which confers exceptional characteristics to extruded products and adds significant value to processing units.

In twin screw extrusion processing, the raw materials may be solids (powders, granulates, flours). Extruded products are chemically modified polymers, textured food and feed products, cellulose pulps, etc.

Double Screw Driven Extruder With Axial Output

Screen Sieve, which is made by SS304 or SS316L, granule size from 0.8mm to 5mm
Single/Double Screw, twin screw extruder offers higher process productivity as compared to single screw extruder.
Single Screw

Double Screw
Radial /Axial output, the granules of radial extruder is side discharged, and anxial extruder is front discharged.
Axial extruder

Radial extruder
Cutting Knife, which can adjust the granule length.Only axial extruder can be equipped with it.
Cutting knife

Cutting knife