THORby CI
ProductsHammer Mill

THOR Hammer Mill

Rugged screened impact milling for coarse-to-medium duty.

THOR hammer mill on its fabricated skid base, feed hopper and belt-driven rotor housing with motor
Impact + screen

Swinging hammers against a screen

A rotor carries rows of swinging hammers that strike the feed against breaker plates, then hold it against a perforated screen until it is small enough to pass.

Mechanism
Impact + screen
Fineness
200 µm – 5 mm
Capacity
2 – 25 t/h
Request a quoteCheck specification

Working principle

The screen is the product setting: swap it in minutes to change the output size. Reversible hammers and bolt-in liners make it the workhorse for grain, biomass, salt and ore.

FEEDHAMMERSCOLLECT

What the material passes through

  1. 1Feed inlet with magnetCatches tramp metal before it reaches the rotor
  2. 2Rotor & swinging hammersReversible hammers deliver the primary impacts
  3. 3Breaker plates / linersBolt-in wear surfaces the feed shatters against
  4. 4Perforated screenSets the top size — only small enough particles pass
  5. 5Discharge chuteGravity or pneumatic take-away to the next stage

What is a Hammer Mill?

A hammer mill is a high-speed mechanical impact pulverizer that crushes, grinds and pulverizes a wide array of materials into fine and medium-coarse powders. It sits in the category of intermediate and fine comminution equipment, and — unlike pressure-based crushers — uses dynamic kinetic energy transfer rather than slow compression to fracture particles.

For operators seeking a robust heavy-duty industrial hammer mill, this is the primary workhorse across the agricultural, chemical, mineral and waste-recycling industries, prized for its versatility and high-throughput capacity. Every THOR-HM unit is built to a customer's process and sized after a pilot run with your actual feed material.

Where Hammer Mill sits on the particle-size scale

5 mm
1 mm
200 µm
50 µm
10 µm
Hammer Mill
CoarseSub-micron

Advantages & limitations

What the THOR-HM does exceptionally — and where the physics of mechanical impact sets a ceiling.

Advantages

  • Maximum wear efficiency

    Proprietary tungsten-carbide hard-facing overlays keep grinding edges sharp up to 300% longer than standard steel hammers.

  • Vibration-dampened frame

    A reinforced steel baseplate with isolation pads eliminates the need for expensive reinforced-foundation civil works.

  • Optimized airflow management

    Internal aerodynamics minimise turbulence — lowering motor power draw and maximising throughput per kWh.

  • Direct air-classifier compatibility

    A pre-engineered modular flange connects straight to THOR-AC classification loops — no mechanical screen needed for fine or sticky materials.

Limitations to plan for

  • Sieve-screen limitation

    As a stand-alone unit with fine screens (<150 µm), moist or greasy feeds can blind the screen — cutting throughput and overheating.

  • High acoustic emissions

    Steel-on-hard-material impact often exceeds 85 dBA, requiring acoustic insulation jackets in close-quarter factories.

  • Thermal heat build-up

    Prolonged dry milling of thermoplastic or heat-sensitive feeds can cause melting or caramelization from friction heat.

Milling, mixing & bulk handling

The THOR-HM Series drops into automated plant layouts and couples cleanly to downstream conveying and classification.

Pneumatic conveying loops

Configure the mill as a hammer-mill-with-cyclone system: a negative-pressure blower pulls milled powder through the screen — cooling the material and conveying it dust-free to a rotary airlock valve.

Modular THOR-AC coupling

For ultra-fine minerals, remove the sieve screen entirely: unscreened output is conveyed to the THOR-AC Air Classifier, which separates fine product and returns oversize to the feed inlet in a closed loop.

Other products

See the other four

Request a pilot run