Yes, there are specialized shredders designed specifically for plastic. These machines, known as plastic shredders or plastic granulators, 

break down larger plastic items into smaller pieces or granules suitable for recycling and further processing.

Plastic shredders vary in types and sizes, each tailored with specific features for diverse applications in the recycling industry. Here are common types:

Single Shaft Shredders:

These machines have a single rotating shaft with blades to cut and shred plastics. 

They're suitable for various plastic types and shred bulky items like drums, containers, or pipes.

Dual Shaft Shredders: 

With two interlocking shafts and efficient blades, they handle tougher materials and larger volumes of plastic waste.

Granulators/crusher:

These machines shred plastic into smaller particles using mechanisms like rotating knives, ideal for recycling processes.

Pre-Shredders: 

Used in some recycling systems, they break down larger plastic items as an initial step before further processing, preparing plastics for subsequent shredding or granulation stages.

The choice of shredder depends on factors like plastic type, waste volume, desired output size, and efficiency required by the recycling process. 

Each type offers specific advantages and is chosen based on a facility's unique needs.