Двойной винтовой

Screw element type for each function: Feeding, Melting, Mixing, Venting, Pressurization

The intermeshing screws co-rotate and wipe each other with narrow clearance so that no residues are left in the screw flights and cleaning effort is thus reduced.

The function of screw element si mainly used to convey materials. Feeding and degassing sections generally have the long pitch to improve the material conveying and degassing. For material of low bulk density, feeding sections can use deep channel components to increase feeding capacity. The metering extruded segmented screw elements generally adopt the small pitch which is used to pressurize, improve the density of the material at the die head, and make the extrusion more stable. 

The kneading block is generally used for melting and mixing of the material. Heat energy is generated by mechanical shear. Together with heating of the barrel, material can be melted and mixed quickly, with special elements to distribute the material more evenly. 

The screw shaft system is characterized by the following:

1. Screw elements with various pitches and lengths

2. Kneading blocks with various angles of stagger, numbers of kneading disks and disk widths

3. Screw tips to fix the screw set axially

4. Gear teeth connection to ensure power flow between the screw shaft and screw elements.

MANUFACTRUING OF THE SCREW ELEMENTS

Advanced CNC equipment is used for processing to ensure teh precision of the products. Through the reasonable process, the consistency of the screw elements can reach 0.02mm, ensureing the interchangeability of the parts.

CUSTOMIZED SCREW ELEMENT

With the application of plastic industry constantly refreshed, more and more customized requirements are from our clients. We serve the customers for a long time, and we had rich experiences. According to the material requirements for the corresponding screw configuration, we can also customize components. 

MATERIAL AND HEAT TREATMENT

Commissioning service includes supervision of installation and start-up, on-site training. Service charges are free. 
· Free technical service and technical consultation should be adhered to before, during and after sales. 
· Provide a complete set of technical information (including electrical schematic diagram, wiring diagram, outsourced parts instructions, product use instructions, etc.). 
· Provide unit production process layout drawing, main screw assembly drawing, transmission box overhaul drawing; 
· With the change of processing materials and processes and the development of new products, the corresponding screw assembly drawing and various technical consultation are provided free of charge. 
· The equipment is guaranteed free of charge for one year. After the expiration of the warranty period, we still insist on after-sales service, spare parts only charge the cost price.

1. Q: Are you a factory or trading company,How is you factory extrusion experience?

A: We are a factory. 20 years experience on extrusion.Leading supplier in Nanjing city.

2.Q: How long is your machine's guarantee time?

A: 1 year, Main parts is made of high tool steel by special quenching treatment, with high corrosion resistance and wear resistance.

3. Q:What can you provide for after sale service?

A: We provide on the spot technical assistance in installation, commissioning and training if you need.

4. Q:If we have very special request for the production line,could you help me to do the design?

A:We provide experienced mechanical designer customized-design.

5. Q: If we have samples of new products, can you help to analysis and design the machine?

A:Yes, our technical department can help you analyze, design and test the new products you offer.