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SHJ-72 Twin Screw Extruder with Underwater Pelletizing

Underwater pelletizers are probably the most versatile equipment for a wide viscosity range, higher outputs, and pellet size capability. 
They operate with the die face and rotating cutter fully immersed in water.
 
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Definition


In underwater pelletizing system,the produced pellets are carried away as slurry in water for further cooling in transit, to the dewatering, screening, and drying equipment.underwater pelletizing consists of drive valve, die head, pellezing unit, bypass line, water recycling unit and centrifugal dehydrator.It is good for most of polymers,especially for TPU and TPV or similar elastomer, its advantage plays well.



Configuration

(source from internet )

configuration of an underwater pelletizing system


Product Video



Technical parameters :SHJ Series 

Model

Screw Diameter (mm)

L/D

Screw RPM

Main motor KW

Torque Grade T/N3

Capacity kg/h

SHJ-20

21.7

32-68

400/500/600

4

5.8

0.5-15

SHJ-30

30

32-68

400/500/600

11

5.8

5-50

SHJ-36

35.6

32-68

500/600/700/800

15-18.5-22

5.7

20-80

SHJ-42

41.2

32-68

500/600/700/800

22-30-37

5.7

50-120

SHJ-50

50.5

32-68

500/600/700/800

37-45-55

5.8

80-200

SHJ-63

62.4

32-68

500/600/700/800

55-75-90

5.8

150-350

SHJ-72

71

32-68

500/600/700/800

90-110-132-160

5.7

300-600

SHJ-85

82

32-68

500/600

160-200

5.7

600-1000

SHJ-92

91

32-68

500-600

250

5.8

840-1600

SHJ-135

133

32-68

650-750

400-500

5.8

1950-3250


Technical parameters for underwater pelletizer


Model

Pelletizer power

KW

Centrifugal dewatering KW

Output kg/h

UW5

2.2

1.5

~100

UW500

4

7.5

~500

UW1000

7.5

11

~1000





  1. Excellent Pellet Quality: Underwater pelletizing produces high-quality pellets with uniform size and shape, resulting in consistent material properties and performance. This is particularly crucial for applications where product quality is paramount.


  2. Heat-Sensitive Materials: If you are working with heat-sensitive thermoplastics or materials that degrade at high temperatures, underwater pelletizing is an excellent choice. The water bath rapidly cools the pellets, minimizing heat exposure and preserving material properties.


  3. Reduced Dust and Fumes: Underwater pelletizing virtually eliminates dust and fumes during the cutting process. This is especially important for maintaining a clean and safe working environment, as well as for processing hazardous or sensitive materials.


  4. High Throughput: The cooling effect of the water bath allows for faster production rates compared to some other pelletizing methods. If you need to achieve high throughput while maintaining pellet quality, underwater pelletizing is a suitable option.


  • Founded in 2004, 19+ Years Experience

  • Annual Production Capacity of 500 Sets

  • CE & ISO 9001 Certificates

  • 100% Parts are Self-made

  • Competitive Price & Best Customer Service

  • Fast Delivery

  • 12 months quality guarantee

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No.337 East Zhening Road, Zhetang Town, Lishui District, Nanjing city, Jiangsu Province, PR China
+86-025-57248891
+86-025-57248499