Position : Single Shaft Shredder for Plastic Purge Lump Recycling
Q: What are plastic purge lumps, and why are they considered one of the most difficult plastic wastes to recycle?
A: In the plastics industry, plastic purge lumps, also known as plastic lumps or start-up waste, refer to large plastic blocks generated during injection molding, extrusion, or blow molding processes.
Typical characteristics include:
Large size
Irregular shape
Thick cross-sections
Difficult to feed into conventional granulators
Likely to jam ordinary crushers
Because these plastic lumps are dense, tough, and bulky, conventional crushers often experience feeding problems, excessive wear, machine overload, and high maintenance costs. As a result, many manufacturers require a dedicated pre-shredding solution.
Q: How does UTMACH single shaft shredder handle plastic purge lumps differently?
A: A single shaft shredder uses a low-speed, high-torque rotor combined with a hydraulic ram feeding system. The hydraulic ram automatically pushes large plastic lumps into the cutting chamber, allowing continuous shearing and tearing under low rotational speed.
This design offers several advantages:
Lower motor load
Reduced operating noise
Stable feeding
Higher operational safety
Longer knife service life
Q: Can the output size meet the requirements for downstream granulation?
A: Yes. By changing the screen size, the single shaft shredder can produce output ranging from several tens of millimeters up to approximately 200 mm, depending on the application.
The shredded material is ideal for:
Plastic washing lines
Secondary granulators
Plastic pelletizing systems
Direct recycling processes
Q: What are the advantages of using a single shaft shredder for plastic purge lumps?
A: Manufacturers processing silicone scraps, plastic purge blocks, or molded plastic waste are usually concerned about output consistency, machine noise, and dust generation.
A single shaft shredder delivers:
Uniform particle size
Stable continuous operation
Low noise
Low dust generation
Easy maintenance
High reliability for long-term production
We can recommend the most suitable shredding solution based on your material characteristics, capacity requirements, and production line layout.
Contact us utmach today for professional recycling solutions.
Email: info@utmach.com
