Landfill remains a significant challenge for waste management operations around the world. Finding practical ways to recover value from waste, reduce landfill dependency and replace fossil fuels is therefore becoming increasingly important.

In Mexico, Geocycle Mexico has taken a major step towards this goal by using a Lindner Polaris 2200 to process municipal and other waste streams into alternative fuels for use within the cement manufacturing process.

The installation demonstrates how advanced one-step waste shredding technology can help transform difficult waste streams into a consistent, usable fuel while supporting the principles of the circular economy.

Lindner reports that Mexico produces around 100,000 tonnes of waste every day, highlighting the scale of the challenge facing the country’s waste management sector.

What Is the Lindner Polaris 2200?

The Lindner Polaris 2200 is a high-performance, single-shaft industrial shredder designed specifically for one-step processing of untreated municipal, commercial and industrial waste.

Rather than requiring multiple stages of shredding, separation and processing, the Polaris can reduce suitable waste streams to a controlled output in a single pass.

Lindner’s current Polaris range is designed to produce medium-calorific recovered fuels in output sizes from approximately 40 to 120 mm, making the technology particularly suited to applications such as alternative fuel preparation for cement plants.

The machine is engineered around:

• High torque
• Low-speed shredding
• Robust cutting technology
• Continuous feeding
• Controlled output sizing
• High throughput
• Low operating costs
• Easy maintenance

This combination makes the Polaris particularly suited to demanding waste-processing applications.

Geocycle Mexico’s Alternative Fuel Solution

Geocycle Mexico, part of the LafargeHolcim group, installed a Lindner Polaris 2200 at its facility in Orizaba, Mexico.

The machine had been operating since April 2018 when Geocycle’s Operations Manager, Esteban Heredia, reviewed its first year of operation.

The objective was clear: recover value from municipal solid waste and use the resulting alternative fuel within the cement manufacturing process.

According to Lindner, after a year of operation Geocycle had already processed thousands of tonnes of alternative fuels and was looking to increase capacity.

This demonstrates the potential of one-step shredding as part of a wider waste-to-energy and alternative fuel strategy.

Why Use Waste as an Alternative Fuel?

Cement manufacturing is an energy-intensive process requiring extremely high temperatures.

Traditionally, fossil fuels have played a significant role in providing this energy.

Processing suitable waste into refuse-derived fuel (RDF) or other alternative fuels provides an opportunity to recover energy from materials that might otherwise be sent to landfill.

Instead of treating certain waste streams purely as a disposal problem, they can become a valuable secondary fuel.

This is a fundamental principle of the circular economy:

Waste → Processing → Alternative Fuel → Energy Recovery

The key is producing a fuel with consistent characteristics that is suitable for the intended application.

Why Particle Size Matters

One of the most important considerations when producing alternative fuels is consistent particle size.

Cement manufacturing requires fuel with specific characteristics to ensure reliable and controlled combustion.

Geocycle’s Operations Manager highlighted the importance of achieving the required particle size and fuel quality for their cement manufacturing process.

This is where the Polaris 2200’s controlled shredding process becomes particularly valuable.

The Lindner Polaris uses interchangeable screen systems that allow the output size to be configured for the application.

Lindner states that its Polaris range can produce output sizes between 40 and 120 mm, depending on configuration.

One-Step Shredding for RDF Production

One of the biggest advantages of the Polaris is its ability to perform one-step shredding.

Traditional waste processing systems can involve multiple stages:

Primary Shredding → Separation → Secondary Shredding → Final Product

A suitable one-step application can simplify this process:

Untreated Waste → Polaris → Alternative Fuel

Lindner explains that one-step processing can make the overall process leaner and less expensive than comparable multi-stage technology, while still producing the required material quality.

Of course, whether one-step shredding is appropriate depends on the input material and required output specification.

Powerful Shredding for Challenging Waste

Untreated waste can be extremely unpredictable.

A waste stream may contain:

• Municipal solid waste
• Commercial waste
• Industrial waste
• Bulky materials
• Plastics
• Paper
• Textiles
• Wood
• Packaging
• Foreign objects

This places significant demands on the shredding equipment.

The Lindner Polaris 2200 has been designed around this challenge.

Its robust cutting system and torque-limiting safety clutch help protect the machine when non-shreddable materials enter the process.

This is particularly important in applications where the incoming waste cannot be completely controlled before it reaches the shredder.

Countershaft Drive Technology

One of the key technologies behind the Polaris is its countershaft drive with flywheel energy storage.

The system stores and releases rotational energy depending on the load placed on the shredder.

This provides additional power when the machine encounters demanding material while helping improve energy efficiency during operation.

Lindner states that its countershaft drive can provide up to twice the throughput compared with drives without higher flywheel mass, based on an independent University of Leoben study.

For high-volume waste-processing operations, efficient drive technology can have a significant impact on operating costs and productivity.

Designed for High Availability

Downtime is expensive in any recycling operation.

For a facility producing alternative fuel for a cement plant, maintaining a reliable supply of processed material is particularly important.

The Polaris has been designed with maintenance accessibility in mind.

Its hydraulically operated maintenance door provides access to the cutting chamber, while the hydraulically operated screen unit allows operators to access and replace screens more easily.

The cutting knives are also designed to be four-fold usable, helping reduce wear-part costs and simplify maintenance.

Easy Operation and Maintenance

For Geocycle Mexico, ease of operation was another important benefit.

Operators received training covering the operation, adjustment and maintenance of the Polaris 2200.

Geocycle’s service operator reported that the team was able to carry out much of the routine work themselves, with Lindner and its local partner providing technical support for major overhauls and more complex requirements.

This highlights an important consideration when investing in industrial recycling machinery:

The machine itself is only part of the solution.

Training, servicing, spare parts and engineering support all contribute to long-term performance.

Polaris 2200 for RDF and SRF Production

The Polaris has become particularly associated with one-step RDF and SRF production.

Its ability to process untreated waste into a controlled size makes it suitable for applications where recovered fuel is subsequently used in:

• Cement kilns
• Cement calciners
• Waste-to-energy plants
• Industrial energy recovery
• Other thermal treatment applications

Lindner specifically positions the Polaris as a solution for producing medium-calorific recovered fuels for co-incineration in cement works.

From Waste Problem to Energy Resource

The Geocycle Mexico project demonstrates an important shift in how waste can be viewed.

Rather than simply:

Waste → Landfill

advanced processing technologies can help create alternative pathways:

Waste → Shredding → RDF/SRF → Energy Recovery

This approach can help recover energy from suitable waste streams while reducing reliance on conventional fossil fuels.

It also demonstrates how industrial shredding technology can play an important role in the circular economy.

Mach Tech Services, Lindner Shredding Specialists

For UK and Ireland customers looking for Lindner industrial shredders, Mach Tech Services provides specialist support from initial application assessment through to ongoing engineering and maintenance.

Mach Tech is the sole UK and Ireland distributor for Lindner Recyclingtech, supporting customers with:

• Shredder selection
• Application assessment
• Installation
• Commissioning
• Servicing
• Preventative maintenance
• Breakdown repairs
• Genuine spare and wear parts
• Precision engineering
• Welding
• Hardfacing
• Machine rebuilds

Choosing the right shredder requires more than looking at headline specifications.

Material type, throughput, particle size, contamination, downstream processing and operating conditions all need to be considered.

Our team can help identify the most appropriate Lindner shredding solution for your application.

Could the Lindner Polaris 2200 Be Right for Your Operation?

If you’re looking for an industrial shredder for RDF production, SRF processing, alternative fuel preparation or one-step waste shredding, the Lindner Polaris 2200 is a proven technology worth considering.

The Geocycle Mexico installation demonstrates how the machine can be used to process municipal waste into alternative fuels while supporting a wider strategy to reduce landfill and recover energy from waste.

For UK and Irish recycling and waste-processing businesses, the key question isn’t simply which shredder has the highest throughput.

It’s:

Which shredding technology is right for your material, output and application?

Mach Tech Services can help you answer that.

Call 01706 838246 or contact our team to discuss your waste processing and alternative fuel requirements.

Frequently Asked Questions

What is the Lindner Polaris 2200?

The Lindner Polaris 2200 is a stationary, single-shaft industrial shredder designed for one-step processing of untreated municipal, commercial and industrial waste. It is particularly suited to producing medium-calorific recovered fuels.

What can the Polaris 2200 shred?

The Polaris is designed to process challenging waste streams including municipal solid waste, commercial and industrial waste, bulky waste and other suitable feedstocks.

Can the Polaris 2200 produce RDF?

Yes. The Polaris is specifically designed for one-step processing of waste into recovered fuels, including RDF-type material for applications such as cement kilns and calciners.

What output size can a Polaris shredder produce?

Depending on the machine configuration and screen selection, the Polaris range can produce output sizes between approximately 40 and 120 mm.

What is one-step waste shredding?

One-step shredding means reducing suitable untreated waste to the required output specification using a single primary shredding process, rather than relying on multiple shredding stages.

Is the Polaris suitable for cement plants?

Yes. The Polaris is specifically designed for producing recovered fuels suitable for co-incineration in cement works and calciners.

How does the Polaris countershaft drive work?

The countershaft drive uses flywheel energy storage to store and release rotational energy according to the shredding load. This provides additional power during demanding sections of the process while helping improve energy efficiency.

What makes the Polaris suitable for difficult waste?

The machine combines a robust cutting system, high torque, foreign-object protection and a torque-limiting safety clutch, helping it cope with variable and challenging waste streams.

Who supplies Lindner shredders in the UK?

Mach Tech Services is the UK and Ireland distributor for Lindner Recyclingtech and provides machinery, engineering, maintenance and spare-part support.