Factory supply Screw Elements Granulator Extruder Accessories Meshing Blocks Can Be Customized
Description of Screw Elements
The screw elements in the plastic pelletizing machine play a vital role in the plastic processing process. By choosing the right screw element type and material, you can ensure that the plastic pelletizing machine runs efficiently and stably, producing high-quality plastic pellets.
Classification of screw elements
1. Conveyor blocks
2. Cut blocks/meshing blocks
3. Special elements (TME, ZME, SF, SK)
The main parameters of the screw element - lead/pitch
1. Wide pitch elements are generally used in the feed and exhaust sections of extruders
2. Narrow pitch elements are used where the material needs to be compressed or filled with 100% filler
3. The increase of pitch will reduce the residence time and filling degree, the residence time distribution will be narrowed, the drag flow will increase, and the pressure flow sensitivity will be enhanced. The speed at which the towed stream conveys material increases. However, the wide pitch element is not effective in establishing the pressure to overcome the restraint forces in the flow channel. However, in the normal pressure range, its pumping capacity is greater than that of narrow pitch elements
4. Reverse screw elements create back pressure for 100% filling
The material of the threaded element
1.38 CrMoAl
2.W6Mo5Cr4V2
The surface hardness is different, and the degree of durability is different.Compared with 38CrMoAl, W6Mo5Cr4V2 high-speed tool steel has higher metal elements, more wear-resistant, and more cost-effective.
| Model | L/D | Screw national standard diameter |
| H-20B | 28~60 :1 | 21.7mm |
| H-35B | 28~60 :1 | 35.6mm |
| H-50B | 28~60 :1 | 51mm |
| H-65B | 28~60 :1 | 62.4mm |
| H-75B | 28~60 :1 | 71.5mm |
FAQ
1:How many years of experience do you have?
Over 15 years experience in extruder industry.
2:Are you traders or manufacturers?What is the area of the factory?
We are manufacturer,The factory is over 5000 square meters.
3:Screw and barrel accessories, who is produced?
Our factory manufactures it ourselves
4:Can I have a sample order for extruder?
Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
5:How to proceed an order for ?
Firstly ,let us know your requirements or application.
Secondly ,We quote according to your requirements or our suggestions.
Thirdly ,customer confirms the samples and places deposit for formal order.
Fourthly, We arrange the production.
Finally, arrange delivery
6: Provide technology and formula?
For orders over a certain amount, we will provide the technology and formula to help you complete the project.
7: Have a catalogue?
HLD Album.pdf
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