High Accuracy Hammer Milling

With the M5A & D6A

Hammer Mills to achieve a high degree of control over particle size distribution (PSD).


M5A & D6A Hammer Mill Machines.


High Accuracy robust hammer mills

Having been in the milling sector for decades, we have gained unrivaled experience and knowledge.

The M5A & D6A models can offer manufacturers a wide range of particle size reduction targets with the ability to change or adjust rotor profiles, RPM and screen selection.

Powder quality is protected as our mills are designed to reduce retention rates and heat damage during the milling process.  Well-cared-for powders mean better flowing materials and improved system efficiency. 

Fast and cGMP-compliant cleaning can be accomplished due to the cantilevered rotor design and mono-block construction.  All components can be totally dismantled and taken offline for thorough cleaning. This means improved hygiene and operator safety.

The Range

Hammer Mill

Hammer Mill


Ideal for smaller production runs or pilot-scale testing.


  • High impact mill for achieving smaller particle sizes.
  • Improve efficiencies and on-target yields with confidence.
  • Achieve high repeatability as the feed system eliminates operator variables.
  • Reduce downtime with fast cleaning from quick access to contact areas.
Features at a glance

  • Pilot and small-scale capacity.
  • 100-500 kg/hr throughputs.
  • Compact design.
  • Optional rotary valve feed system for increased containment.



Hammer Mill M5a

Hammer Mill


Production scale processing. High impact milling reaches finer particle sizes.


  • Efficiencies are improved with higher on-target yields.
  • Unmatched selection of screens making it possible to process APIs & difficult products. Proven success in Hot Melt Extrusion applications.
  • High repeatability by eliminating operator variables from the feed system.Improve processing up-time as the mill is easy to fully disassemble and clean.
  • NEW - features in the SDx Series production-scale interchangeable powder milling and screening.

Features at a glance

  • High throughput rates of 200-1,000 kg/hr. Option: Product Containment System (PCS) - no need for separate process isolators.
  • One-piece rotor & direct connect motor.
  • Flexible feed system - pan, auger or rotary valve.
  • Cooling infeed chamber for heat-sensitive products.



In detail

M5A & D6A Hammer Mills

Here are just some of the Hammer Mills we have designed and built:

As well as meeting the requirements of cGMP, we want to ensure that the machines we develop are well designed and safe for the user, so we follow a variety of specific industry directives.

All Fitzpatrick products are designed and manufactured in a facility with an ISO 9001:2015 accredited Quality Management System. 

The scope of this Quality Management System applies to all processes and activities which are controlled, managed and performed by employees within the Fitzpatrick company. 

The current Certificate of Registration, reference Certificate No: CERT-0123529, has been issued by SAI Global and is effective to September 2, 2024.


We offer a complete selection of ATEX-approved mills that meet the ATEX European Union directive for products used in potentially explosive atmospheres.

Our equipment is designed to handle the toughest milling applications, which is why professionals around the world choose us.   With models specifically designed to meet ATEX Zone 0/20 (1GD) or 1/21 (2GD) requirements, we provide the most comprehensively safe mills in the industry.

                         accred-atex-web   accred-ce_white-web

All equipment destined for Europe is CE marked and comes with an EU Declaration of Conformity.  It is certified to comply with the Machinery Directive 2006/42/EC,  the Low Voltage Directive 2014/35/EU and the Electromagnetic Compatibility Directive 2014/30/EU.

Our equipment is designed to meet a variety of international safety standards, so whichever country you are in we can be compliant.

Discover why the M5A & D6A Hammer Mills from Fitzpatrick are world-leading and has become the equipment of choice for many companies around the world.

Video Coming Soon

Contact the Hammer Mill Experts

Unsure which machine is right for you?

Let us help you solve your material sizing challenges. Complete the form below to request your no-obligation tech consultation.


Our Range of Powder Processing Equipment

In addition to our market-leading hammer mills, we also offer solutions that provide afford reliable and repeatable results.
Roller Compaction
Fitzpatrick specializes in designing world-class
Roller Compactors.
Fitzpatrick specializes in designing Hammer Mills for precision particle size reduction.