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{"title":"18.5kw Plastic Extrusion Line , Plastic Extrusion Equipment Energy Saving","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/66\/dc\/482bd162cc34099188130cc32e17-200x200-1\/18_5kw_plastic_extrusion_line_2c_plastic_extrusion_equipment_energy_saving.jpg","attrs":{"Brand Name":"FRIEND","Model Number":"SJ-65","Certification":"CE","Place of Origin":"JIANGSU"}}
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{"title":"350mm PLC Control Pipe Forming Flaring Machine 14Mpa Oil Pressure","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/11\/94\/e369e550fd41195dfeb9b940d83c-200x200-1\/350mm_plc_control_pipe_forming_flaring_machine_14mpa_oil_pressure.jpg","attrs":{"Brand Name":"Friend","Model Number":"SG","Certification":"CE","Place of Origin":"Jiangsu,China"}}
{"title":"PE Nose Bridge Bar 21kg\/H Plastic Extruder Machine Recycling Water Cooling","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/01\/38\/ba31e9f74cd296c6d3e537df3430-200x200-1\/pe_nose_bridge_bar_21kg_2fh_plastic_extruder_machine_recycling_water_cooling.jpg","attrs":{"Brand Name":"FRIEND","Model Number":"FLD-45","Certification":"CE","Place of Origin":"CHINA"}}
{"title":"180kg\/H 680mm EVA PMMA Sheet Etruder With Double Sieve","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/44\/b0\/711791b94e5c24c993998c7e51a0-200x200-1\/180kg_2fh_680mm_eva_pmma_sheet_etruder_with_double_sieve.jpg","attrs":{"Brand Name":"Friend machinery","Model Number":"FLD-65Z","Certification":"CE","Place of Origin":"China"}}
{"title":"120RPM 45mm PET Plastic Filament Extruder Machine Single Screw","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/b2\/c9\/e77ae647dbbd0740f0c91e35f1c7-200x200-1\/120rpm_45mm_pet_plastic_filament_extruder_machine_single_screw.jpg","attrs":{"Brand Name":"Friend machinery","Model Number":"FLD-45b","Certification":"CE,ISO9001","Place of Origin":"China"}}
Concerning our Extruders and Extrusion Lines you can rely on an unobstructed production. Our machine conception with direct drive and barrier screw providesextremely energy-saving Extruders of low maintenance requirements.
esde Single Screw Extruders are distinguished by their high output achievements on a low temperature level thus preventing the macro molecules from degradation and cross-linking processes. For melting the plastic material our Extruders receive the necessary heat almost exclusively from the motor. This heat is used in such an efficient way that the heating/cooling system on the barrel hardly requires operating.
Features
For plastic processing, extrusion has been used from the start. First to convey PVC and polyethylene, later also for engineering plastics.
The length of a screw is expressed as the ratio between diameter and length.
Since the emergence of crystalline engineering plastics, the length of the screws had to be increased.
The feed section is the part of the screw where the unmolten polymer enters into the barrel. The rotating screw moves the material along the heated barrel where it starts to melt.
In the compression zone, gases like air and volatiles like moisture, are being removed. In the compression zone, the flight depth decreases and gases are pushed back into the direction of the hopper.
Finally, the material enters the metering section. In this section, pressure is generatedwhich enables the material to be conveyed into the shaping area, like feed block or film die.
The compression ratio of the screw is the ratio between the flight depth of the feed section and the ratio of the metering section.
Most screws have a flight helix that is equal to the diameter of the screw.
Compression
Until the granules are molten, with every screw rotation, the material will be conveyed 1 speed. What has been conveyed is a mixture of roughly 50 % solids and 50 % air.
Without compression section, the molten material behaves like a foam. In the compression section, the volatiles are pushed back into the direction of the hopper.
The length of the compression section depends on the polymer to be extruded. The extreme example of PVC, the compression section comprised the full length of the screw. For crystalline polymers a very short compression section is recommended.
Mixing
All single screw extruders show some mixing effect, although very limited. For the proper dispersion of additives like stabilizers, antiblock agents, etc., mixing elements are being used.
There are various types of mixing sections, like Maddock, pineapple or pintype mixing elements.
Technical parameters
Screw
Diameter: 35mm
Screw L/D: 25
Material: 38CrMoAlA
Rotate Speed: 12rpm
Barrel
Heating Control Area: 3 areas
Neck heating: 1 area
Heating Way: Case aluminium heaters with electric fans for cooling
Cooling System: Barrel Fan Cooling, Low-noisy
Reducer motor:
Variable-Frequency and Variable-Speed motor
Power: 2.2~5.5 Kw
Rotate speed: 1450rpm (Max)
Reduction ratio: 130:1
SJ35 extruder is small extruder which has a low capacity. We also have bigger extruders such as:
Product Name
Screw
diameter
Aspect ratio
Motor power
Screw speed
Max output
Unit
mm
L/D
kw
r/min
kg/h
SJ25/25
25
25:1
1.5
100
3.4
SJ30/25
30
25:1
5.5
125
12.5
SJ45/25
45
25:1
7.5
100
20
SJ45/30
45
30:1
15
145
40
SJ65/25
65
25:1
22
100
60
SJ65/30
65
30:1
30
105
80
SJ90/25
90
25:1
55
120
150
SJ90/30
90
30:1
90
94
250
SJ120/25
120
25:1
90
94
350
SJ120/30
120
30:1
110
94
350
SJ150/25
150
25:1
110
40
320
SJ150/30
150
30:1
132
50
350
SJ200/25
200
25:1
160
30
500
SJ200/30
200
30:1
200
40
550
Machine pictures
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Trading Company
Year Established:
2010
Total Annual:
4 million-7 million
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Zhangjiagang Friend Machinery Co.,Ltd was established in 2010 and is located in Zhangjiagang City, Jiangsu province, enjoying convenient transportation and beautiful environment. Our company covers an area of 9000 square meters and has 60 employees. We are specialized in producing plastic machine an... Zhangjiagang Friend Machinery Co.,Ltd was established in 2010 and is located in Zhangjiagang City, Jiangsu province, enjoying convenient transportation and beautiful environment. Our company covers an area of 9000 square meters and has 60 employees. We are specialized in producing plastic machine an...
