Food Waste Shredding

The challenge: managing the complexity of food waste shredding

Treatment and valorization of food waste represent a crucial step for logistical efficiency, operational hygiene, and process sustainability. However, shredding organic and food waste presents very different technical challenges depending on the application. It is not just about shipboard waste: food waste can come from industrial kitchens, catering, cruise ships, canteens, collection centers, agri-food processing, or mixed streams of various food waste.

Food Waste Shredding

Critical Issues in Food Waste Shredding

Food waste shredding presents very different critical issues depending on the application context, required throughput, and regulatory constraints to be met.

In some areas, it is essential to obtain a well-defined final particle size, while in others the need to reduce material volume and continuously manage wet, heterogeneous, and often difficult-to-handle organic masses prevails.

The presence of residues with highly variable consistencies, high moisture content, and possible foreign elements makes the process particularly delicate.

For this reason, it is necessary to design the shredding not only based on cutting capacity, but also on feeding regularity, operational reliability, and integration with the overall treatment system.

Specific Challenge Consequences of a Non-Specialized Approach
High material variability (wet, fibrous, pasty, irregular) Unstable feeding, inconsistent yield, and difficulty maintaining uniform particle size
Presence of regulatory constraints in the maritime sector (MARPOL) Material not compliant with required dimensions and risk of operational non-compliance
Hygienic contexts and sensitive environments such as shipboard or industrial kitchens Greater risk of stagnation, bad odors, difficult cleaning, and more frequent maintenance
Requirement for volume reduction on heterogeneous food streams Inefficient transport, greater space occupation, and higher logistical costs
Land-based applications with mixed food waste and high throughput Overloads, uncontrolled wear, and selection of an undersized machine

The SatrindTech solution: shredding engineering for Food Waste

At SatrindTech, we do not provide simple shredders, but shredding engineering solutions. Our approach starts with in-depth analysis of your specific application. Whether it involves shipboard food waste, catering waste, centralized kitchens, organic waste from processing, or various food waste from land-based facilities, our technical specialists work with you to understand material consistency, output objectives, regulatory requirements, available space, and discharge methods.

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

  • Shredding tests to verify the actual behavior of organic material, achievable particle size, and productivity consistent with the application.
  • Selection of the most suitable shredder from our range, from the compact MARPOL-certified S3/3N for shipboard use to more robust twin-shaft F410/360, F410/420/2P, or high-torque machines for various food waste.
  • Customization of the cutting chamber with number of blades, thickness, number of teeth, dedicated hoppers, and special frames, as in naval models according to drawing S03-2109.
  • Integration of electrical panel, ammeter, special components, remote assistance, or line automation depending on the context of use.
  • Development of solutions consistent with hygiene, space constraints, maintenance, and operational continuity, essential both on ships and in land-based installations.

Our machines are built to be robust and long-lasting, ensuring reliability and low total cost of ownership even in applications where food waste is continuous, wet, and difficult to manage from a logistical and sanitary standpoint.

Triturazione rifiuti alimentari
Recommended Shredders for Food Waste

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

No. of Shafts: 2

Power (HP/kW): 3.0 kW

Main Features and Advantages: Ideal for shipboard and compact applications. Chamber 305 x 300 mm, 24 blades 12 mm thick, intended use for shipboard food waste shredding. In recent quotations it is rated up to 100 kg/h with 1-inch output.

No. of Shafts: 2

Power (HP/kW): 7.5 kW

Main Features and Advantages: Very common configuration on cruise ships and food waste applications. Can be equipped with 24 blades 15 mm thick with 14 teeth, special frame and hopper, 440V 60 Hz power supply. In MARPOL quotations it reaches 450–500 kg/h with output <25 mm; in cruise versions it is configured for volume reduction.

No. of Shafts: 2

Power (HP/kW): line configuration

Main Features and Advantages: Solution for land-based food waste, oriented toward volume reduction. Suitable when MARPOL constraint is not required but robustness and operational continuity are needed.

No. of Shafts: 2

Power (HP/kW): 100 HP / 132 kW for the T20/200 shredder

Main Features and Advantages: Machines for various food waste and more demanding applications. Suitable when food waste is part of a more industrial process, with mixed streams, high throughput, or more complex mechanical lines.

Specific applications and productivity

Our solutions for food waste shredding are designed to meet specific needs in very different contexts. Thanks to the experience gained in the maritime, catering, and land-based facility sectors, we are able to configure the most suitable machine based on the material, required compliance level, and waste management method.

Shipboard food waste with MARPOL requirement

Recommended model: S3/3N

Indicative productivity (kg/h): up to 100

Technical notes: Irregular material, 1-inch output, MARPOL certification.

MARPOL compliant food waste

Recommended model: F410/360/N

Indicative productivity (kg/h): 450 – 500

Technical notes: Output <25 mm; shipboard application in EN quotations for Spain, Norway, Singapore, Germany, and the Philippines.

Food waste for cruise ships

Recommended model: F410/360

Indicative productivity (kg/h): custom design

Technical notes: Volume reduction, special frame and hopper, 24 blades 15 mm thick with 14 teeth, 7.5 kW 440V 60 Hz motor.

Land-based food waste

Recommended model: F 410/420/2P

Indicative productivity (kg/h): custom design

Technical notes: Industrial shredder for food waste with volume reduction.

Various food waste

Recommended model: 2R 15/75 / T20/200

Indicative productivity (kg/h): custom design

Technical notes: More demanding applications with dedicated plant logic and hydraulic transmission.

Three-shaft shredder 200 hp
Three-shaft shredder 200 hp
Food Waste Shredding

The advantages of the SatrindTech approach

Choosing SatrindTech’s engineering approach for food waste shredding means obtaining concrete and measurable results:

  • Maximum process efficiency: volume reduction and better logistical waste management, both in maritime and land-based environments.
  • Application compliance: configurations consistent with MARPOL requirements when required and with actual installation constraints.
  • Reduction of operating costs: thanks to compact, robust machines correctly configured for actual organic material.
  • Operational flexibility: ability to treat shipboard food waste, catering, industrial kitchens, and various food waste with dedicated solutions.
  • A partner, not a supplier: a team of specialists who support you from material testing to definition of the most suitable machine or line.
Do you have a complex food waste shredding application?

Contact us to speak with one of our specialists. We will analyze your needs to design a customized shredding engineering solution for you, whether you need to treat MARPOL-compliant shipboard food waste, catering waste, process organic waste, or various food waste in land-based applications.