垃圾桶生产厂家
Location : Home >> Products >> Peristaltic Rotating Extruder



Peristaltic rotating extruder is a new product together developed by EMTECH and South China University of Technology (SCUT) National Engineering Research Center for polymer new-type forming equipment. The extruder is based on the theory of elongation rheology plasticizing transport and related inventions established by Qu Jinping, academician of China Academy of Engineering. Cooperated with relevant R&D teams and investors, EMTECH develops, produces and sells new generation plasticizing extrusion and injection molding equipment, and provides advanced products and related technical services for domestic and international customers



The Principle of Elongation Rheology Plasticizing and Convey

The key technology of Peristaltic Rotating Extruder is utilizing special structured plasticizing part, changing the way of melted flow plasticization and convey from traditional shearing rheology to elongation rheology dominant. The volume of melted flow moves peristaltically during this process. Compared with traditional plasticizing method, elongation rheology causes less damage to molecular chain, hence the material has better uniaxil tensile strength at yield and elongation strain at break. The process needs less heating energy and produce the material with better dispersion. Peristaltic Rotationg Extruder is of great significance in energy saving, resource recycle and improvement of product quality, have huge prospects in world-wide market.



After plastic pellet or powder enters into plasticizing unit, the melted flow ( as figure above) experiences:


Powder/Pallet solid compress

Volume peristalsis alternatively

Homogenization

Volume expansion venting

Repeat peristalsis and Homogenization




Melted flow experiences multiple extension and compress stages. Whole process is carried out in smooth curved surface, preventing molecular chain from broken and overheat cuased by shearing action. The completion of molecular chain is maximum preserved during this process. The principle is a great breakthrough in polymer processing sector.



Performance Comparison with Traditional Extruder 

Pipe type

PVC-M

PVC-U

Traditional Extruder

Peristaltic Extruder

Product Standard

CJ/T
272-2008

ISO
1452-2:2009

GB/T
1002.1-2006

Dichloromethane resistance

No erosion is allowed on the surface

No erosion is allowed on the surface

Not inferior to 4N

PASS

PASS

Tensile yield strength

 

≥45

 

≥42

≥45

Elongation at break %

 

≥80

 

≥150

≥180

Drop hammer impact strength

6.3KG 2m
≤5

M 1.0kg 1.6m
H 1.6kg 2.0m
≤10

M 1.0kg 1.6m
H 1.6kg 2.0m
≤5

3.0kg 2m
≤5

6.0kg 2m
≤10

Water pressure testing

36.0 dn≤63
38.0 dn>63

42.0

36.0 dn<40
38.0 dn≥40

38MPa PASS

42MPa PASS

Energy consumption ratio

 

 

 

0.18-0.20

0.15-0.18

Multiphase composite

 

 

 

Poor dispersion

Uniform dispersion

※Above date is only for PVC pipe DN110 mm



Gearbox/Distributor

Main Figures of Gearbox For Parallel Twin-screw Extruder

Type number

ETP 6-51/65

ETP 6-66/75

ETP 6-76/90

Screw Diameter (mm)

65

75

90

Center Distance (mm)

51

66

76

Uniaxial torque (Nm)

3300

5914

8700

Output speed (rpm)

60

60

60

Power (kw)

55

75

110

Uniaxial torque index (Nm/cm³)

16.3

20.6

19.9

Uniaxial back pressure (kN)

110

150

206

Overall dimensions (LxWxH mm)

850x580x1100

950x670x1250

1100x750x1350


Microstructure Comparison Chart


Specifications 


Machine Configuration

Emtech Industrial Park, No. 6 Chuangye Ave, Ezhou Economic Development Zone, Hubei Province

Contact number: 027-59370566 027-59370266

Fax: 027-59370299

E-mail: market@efeng.com