Plastic and Rubber Shredding

The challenge: managing the complexity of plastic and rubber shredding

The treatment and recovery of plastic and rubber waste represent a crucial step for the circular economy and industrial process efficiency. However, shredding these materials presents very different technical challenges: PET bottles and cans with residual liquids, HDPE IBCs and drums, production waste, films, sprues, tanks, mixed plastics, and fiberglass-reinforced materials require very different solutions in terms of torque, cutting chamber, feeding, and final particle size.

Plastic and Rubber Shredding

Critical issues in plastic and rubber shredding

The shredding of plastic and rubber presents very different criticalities depending on the shape, composition, and behavior of the material during processing. Some waste can be voluminous, elastic, or difficult to grip, making continuous machine feeding complex.

In other cases, the presence of technical, reinforced, or particularly resistant materials increases component wear and requires an appropriate configuration of the cutting system.

One of the most frequent problems, therefore, concerns not only size reduction but also the ability to ensure process continuity, avoiding blockages, material springback, or bridging in the hopper.

Specific Challenge Consequences of a Non-Specialized Approach
Material heterogeneity (PET, HDPE, rubber, production waste, FRP) Low productivity, unstable yield, and blade sets inconsistent with the actual material
Presence of liquids or internal residues in containers Infiltration into seals and bearings, corrosion, and increased maintenance
Need for controlled particle size for washing, separation, or granulation Material unsuitable for subsequent stages and loss of value
Management of voluminous or floating pieces such as sprues and tanks Difficulty in gripping material, bridging in the hopper, and discontinuous loading
Abrasive materials such as fiberglass-reinforced plastic Accelerated wear of rotor, blades, and cutting surfaces

The SatrindTech solution: shredding engineering for plastic and rubber

At SatrindTech, we do not provide simple shredders, but shredding engineering solutions. Our approach starts with an in-depth analysis of your specific application. Whether it’s PET bottles, IBC tanks, sprues, tanks, production waste, or fiberglass-reinforced plastics, our technical specialists work with you to understand the nature of the material, process requirements, and output goals.

This consultancy process allows us to design a tailored solution, which may include:

  • Shredding tests to verify dynamic material behavior, productivity, and actual particle size.
  • Selection of the most suitable shredder from our range: dual-shaft for volume reduction, single-shaft for more controlled particle size, CL configurations with screen for more regular output.
  • Customization of the cutting chamber with blade thickness, number of hooks, ram, inclined hoppers, or raised frames depending on the material to be treated.
  • Integration of dedicated systems, such as solid/liquid separation screws for PET and full cans, or extraction and protection systems for fiberglass-reinforced materials.
  • Development of automation and line accessories, such as conveyors, inverters, remote assistance, big bag management, and loading logic for large containers.

Our machines are built to be robust and long-lasting, ensuring reliability and a low total cost of ownership even in the most demanding applications, where the material is not only tough but also irregular, voluminous, or abrasive.

Glass Fiber Reinforced Plastic
Recommended shredders for Plastic and Rubber

Thanks to over 40 years of experience, we have developed specific configurations for every need. Below are some of the most suitable models for plastic and rubber shredding:

No. of Shafts: 2

Power (HP/kW): in-line configuration.

Main features: Ideal for PET bottles and full cans. In the analyzed offers, it processes up to approximately 4 t/h on PET bottles and up to 4–6 t/h on plastic bottles, glass, and cans, with solid/liquid separation via screw and discharge conveyor.

No. of Shafts: 2

Power (HP/kW): hydraulic configuration with 63×50 screen.

Main features: Designed for IBCs and plastic drums. It can be equipped with an inclined hopper for IBCs, raised frame, big bag holder, PLC panel with remote assistance, and conveyor belt.

No. of Shafts: 1

Power (HP/kW): 22 kW

Main features: Solution for fiberglass-reinforced plastic up to 60%. 600×650 mm chamber, Ø15 mm screen, 10 cutting inserts 43x43x20 mm. Suitable when more controlled particle size and abrasiveness management are required.

No. of Shafts: 2

Power (HP/kW): per configuration.

Main features: Indicated for sprues, tanks, and voluminous plastic pieces. The combination of a long chamber, mix of blades, and ram helps counteract material floating and improve gripping continuity.

Specific applications and productivity

Our solutions for plastic and rubber shredding are designed to meet specific needs in various industrial sectors. Thanks to the experience gained in over 4,000 installations worldwide, we are able to guarantee optimal performance for every type of material.

PET bottles and aluminum cans with liquid

Recommended model: F 515/2P

Approximate productivity (kg/h): approx. 4,000

Technical notes: Throughput depends on the type of loading; system includes screw for liquid/solid separation and bidirectional conveyor.

Plastic bottles, glass, and full cans

Recommended model: F 515/2P

Approximate productivity (kg/h): 4,000 – 6,000

Technical notes: Volume reduction and in-line solid/liquid separation.

IBCs and plastic drums

Recommended model: K 10/50 CL

Approximate productivity (kg/h): per project

Technical notes: 63×50 screen, inclined hopper, raised frame, occasional processing of steel drums possible.

Fiberglass-reinforced plastic up to 60%

Recommended model: 1K 28/60-30

Approximate productivity (kg/h): 200 – 400

Technical notes: Single-shaft with Ø15 mm screen and anti-wear configuration for abrasive material.

Plastic sprues and tanks

Recommended model: Dedicated K series

Approximate productivity (kg/h): per project

Technical notes: Crucial to manage shape, floating, and gripping continuity with ram and mix of blades.

Plastic and Rubber Shredding
Plastic and Rubber Shredding
Plastic and Rubber Shredding
How to shred plastic sprues and tanks

The advantages of the SatrindTech approach

Choosing SatrindTech’s engineering approach for plastic and rubber shredding means obtaining concrete and measurable results:

  • Maximum process efficiency: reduction of downtime and productivity consistent with the actual material.
  • Quality of shredded material: more regular particle size compatible with washing, separation, granulation, or reintroduction into the process.
  • Reduction of operating costs: thanks to anti-wear configurations, seal protection, and correct selection of the loading system.
  • Operational flexibility: ability to treat PET, HDPE, IBCs, production waste, sprues, and FRP with customized solutions.
  • A partner, not a supplier: a team of specialists who follow you from material testing to after-sales assistance.
Do you have a complex plastic or rubber shredding application?

Contact us to speak with one of our specialists. We will analyze your needs to design the tailored shredding engineering solution for you, whether you need to treat PET bottles, IBCs, plastic drums, sprues, tanks, or fiberglass-reinforced plastics.