A calender machine is one equipment conprised of two or more cylinder heated rolls, arranged in a certain form ,specially used to finish or smooth material to be sheet form ,it is applicable to many material ,such as PVC, paper, textiles, non-woven,rubber, or plastics etc.
The material like rubber ,PVC is fed into the calendering machine and then pulled into the roller gap by frictional force and pressed under certain temperature into rubber sheet by the two rollers.
There are 2 rolls calender , 3 roller calendering machine ,4 rolls calender machine and more .Here let us talk 2 rolls PVC calender machine .
A 2-roll PVC calender machine is an essential piece of equipment in the plastics industry, primarily used for processing PVC (polyvinyl chloride) and other thermoplastic materials. This 2 rols calendering machine is designed to roll, compress, and form PVC sheets with consistent thickness and high precision. Different from multi-rolls calendering systems, the 2-roll calender is more compact ,and it is ideal for specific applications where simple sheet forming or thickness control is required.
How Does a 2-Roll PVC Calender Work?
The 2 rolls calendering machine consists of two large rotating heated rolls, which are made of Chilled casting rolls, whose surface hardness can reach up to 560 HV,that is HRC65-70 which is very hard and apply pressure to process the PVC material. Here’s how it works:
1. Material Feeding: The raw materail ,such as PVC compounds, is positioned between the pre-melted rollers of the calendar.
2. Heating & Rolling: The cylinder rolls are heated to the required temperature, which ensure uniform softening of the PVC material.
3. Thickness of Adjustment: The rollers can be adjusted to change the radius of the bending or to obtain specific shapes. Once the processing is completed, the piece is finished to ensure accuracy and qualit
4. Sheet Formation: The PVC material is continuously rolled and The heated steel rollers rotate in sync, applying pressure constant on the PVC material, deforming it progressively to achieve a smooth, uniform sheet or film.
5. Cooling & Collection: The finished sheet is cooled and then wound or cut for further processing.
Wide Applications of a 2-Roll PVC Calender Machine
The 2-roll PVC calender is widely used in various industries, including:
* Plastic Sheet Production: Manufacturing PVC, polyethylene for different applications.
* Automotive: Fabricating PVC films for car interiors and packaging materials.
* Artificial Leather Processing: Producing smooth and durable synthetic leather.
* Flooring & Wall Coverings: Used in making vinyl flooring and decorative wall panels.
Advantages of a 2-Roll PVC Calender Machine
✔ Compact Design: Takes up less space compared to multi-roll calenders.
✔ Precise Thickness Control: Adjustable roll gap ensures uniform sheet thickness.
✔ Efficient Production: High-speed rolling enhances productivity.
✔ Versatile Applications: Suitable for different types of PVC materials.
✔ Easy Maintenance: Simple structure allows for easy operation and maintenance.
Simptek offers calendering solutions for every requirement: soft nip or hard nip calendering, with single or multiple nips, whether calendering on one or both paper sides. With Simptek calendering concepts, you achieve the desired surface properties of your paper and board.