Model : Retsch SM 100

Efficient size reduction and homogenization of solid waste materials.

The Retsch SM 100 is a robust cutting mill engineered for coarse and fine grinding of soft to medium‑hard, fibrous, and tough samples. It delivers rapid, reproducible comminution for a wide range of materials in environmental, agricultural, and waste processing laboratories.

Overview

Our center is equipped with a Retsch SM 100 Cutting Mill, a versatile grinder that operates on the principle of cutting and shearing between parallel knives. Material is fed via a large hopper and size‑reduced until it passes through an interchangeable bottom sieve, ensuring a consistent particle size from a few millimeters down to sub‑millimeter range.

This mill is essential for preparing representative test portions from bulky solid waste, biomass, compost, plastics, and other heterogeneous materials prior to chemical analysis, leaching tests, or further processing, supporting accurate waste characterization and circular economy assessments.

What It Measures

The cutting mill does not measure analytes; it converts irregular bulk samples into uniform, homogeneous powders or chips suitable for representative subsampling and analytical testing. Its controlled grinding ensures sample integrity without thermal degradation.

  • Particle Size Reduction Cuts and shears samples to a defined maximum particle size.
  • Sample Homogenization Iron, zinc, copper, manganese, selenium, magnesium, and other essential elements.
  • Defined Final Fineness Interchangeable sieves allow selection of target particle size from 0.25 mm to 20 mm.

Key Applications

The cutting mill provides essential sample preparation for waste characterization, biomass analysis, and material testing.

 

  • Solid Waste Grinding Prepares municipal and industrial waste for compositional analysis.
  • Biomass Comminution Mills wood, straw, and residues for fuel characterization.
  • Plastic and Polymer Processing Reduces films and packaging for recycling quality assessment.

All devices are operated within standardized laboratory workflows to ensure accuracy, traceability, and compliance with analytical standards.