High throughput and flexible process design
The HAZEMAG HNM hammer mill is designed for the fine grinding of soft to medium-hard materials. It reliably processes limestone, gypsum, dolomite, clay, salts, phosphates and comparable raw materials, delivering reproducible product quality under defined operating conditions. The machine is designed for industrial applications requiring high throughput, stable processes and consistent product quality.
A key feature of the HNM is its twin-rotor design with freely swinging hammers. This supports consistent energy transfer and stable results when material properties vary. Product fineness can be adapted to the application using impact bars, spacer bars and grates.
The HNM hammer mill is primarily used in minerals processing, the building materials and cement industries, and other industrial applications involving continuous operation. Where required, grinding can be combined with integrated drying to reduce the need for additional processing stages.
Your Advantages of the HAMMER MILL HNM at a Glance
- Efficient fine grinding: For soft to medium-hard materials with consistent product fineness.
- Twin-rotor design: Two rotors with freely swinging hammers for high throughput.
- Optional combined grinding and drying: Size reduction and drying in a single process step.
- Flexible material feeding: Central or lateral feed to suit throughput requirements.
- Adjustable product fineness: Impact bars, spacer bars and grates allow targeted adjustment of final product fineness.
175 Years
Engineering
expertise
More than
75,000
installations
worldwide

HAMMER MILL HNM for your project direct from HAZEMAG
HAZEMAG develops individual solutions for demanding crushing and processing applications in industry and raw materials processing. The HNM hammer mill combines high throughput, flexible process design and robust construction for continuous operation.
Technical data for the HNM hammer mill
Technical data for the HNM hammer mill
The HNM series is available in several sizes, with different rotor dimensions and power ranges for fine grinding applications.
HAMMER MILL HNM
| Model | Rotor Diameter x Width mm | Capacity* for 95% <3mm t/h | Power Requirements* kW | Weight kg |
| HNM 0703 | 650 x 250 | 10 | 2 x 15 - 45 | 1.900 |
| HNM 0705 | 650 x 500 | 20 | 2 x 18,5 - 55 | 2.500 |
| HNM 0708 | 650 x 750 | 30 | 2 x 22 - 75 | 3.100 |
| HNM 1008 | 1.000 x 750 | 45 | 2 x 30 - 160 | 7.100 |
| HNM 1013 | 1.000 x 1.250 | 70 | 2 x 45 - 200 | 10.000 |
| HNM 1020 | 1.000 x 2.000 | 110 | 2 x 55 - 250 | 18.800 |
| HNM 1313 | 1.300 x 1.250 | 120 | 2 x 55 - 250 | 21.000 |
| HNM 1325 | 1.300 x 2.500 | 190 | 2 x 90 - 400 | 39.000 |
| * values are variable and can be aligned to the particular requirements | ||||
Applications of the HNM hammer mill
The HAZEMAG HNM hammer mill is used wherever soft to medium-hard materials require reliable fine grinding and, where needed, simultaneous drying. It is particularly suitable for industrial processes requiring consistent product fineness, stable operation and high throughput.
Its twin-rotor design and adaptable internal components allow the HNM to be configured for different material properties. Depending on the process requirements, grinding can be combined with integrated drying, potentially reducing the number of separate processing stages and improving overall process efficiency.
Typical Materials
- Limestone, dolomite and chalk
- Gypsum, anhydrite and quicklime
- Clay, talc and diatomite
- Potash, salts and phosphate raw materials
After-Sales Service
HAZEMAG supports you beyond the commissioning of your HNM hammer mill through a global service and support network. The aim is to maintain high plant availability, support planned maintenance and ensure economical operation.
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Our Service at a Glance

Spare parts through HAZparts
With HAZparts, HAZEMAG’s official online ordering platform, you can order genuine spare parts for your HNM hammer mill directly from the manufacturer, provided your machine is registered on the platform. The HAZEMAG service team supports you with parts identification and enquiries for machines that are not yet registered. Availability and delivery times are confirmed individually for the required components.
Available spare parts
- Hammers, grates and impact bars
- Rotor components, shafts, bearings and seals
- Wear plates and liners
- Hydraulic components and associated functional parts
Your advantages with HAZparts
- Convenient online ordering of genuine spare parts directly from HAZEMAG
- Precisely fitting components manufactured to HAZEMAG quality standards
- Individual confirmation of availability and delivery times for HNM components
- Technical support and advice from the HAZEMAG service team

Your project starts with the right HAMMER MILL
Whether you are purchasing a new machine, adapting an existing installation or planning a modernisation, HAZEMAG supports you from the initial technical consultation through to the integration of the HNM hammer mill into your plant.
Our specialists help design a solution tailored to your materials, required product fineness and process requirements.
Benefit from:
- Individual advice from experienced HAZEMAG specialists
- Technical design based on your material and process data
- Access to current data sheets and performance figures
- Direct contact with the manufacturer and extensive plant engineering expertise
Configuration of the HAZEMAG HNM series
Each HAZEMAG HNM hammer mill is individually configured to suit the material properties, required product fineness and process requirements. Its robust, adaptable design allows the machine to be tailored to a range of industrial applications.
- Configuration for fine grinding alone or combined grinding and drying
- Adaptation to existing plants and material flows
- Integration into overall plant and process concepts
- Central or lateral material feeding to suit throughput requirements
- Grinding chamber geometry designed to support consistent product fineness
- Replaceable impact and spacer bars for fineness control
- Twin-rotor design with non-reversible rotors
- Freely swinging hammers for effective size reduction
- Rotor configuration adapted to material properties and wear requirements
- Adjustment of final product fineness using grates, impact bars and spacer bars
- Adaptation to different particle size requirements
- Stable process operation with varying feed materials
- Hydraulically opening housing sections for convenient maintenance access
- Maintenance-friendly arrangement of wear-related components
- Design in accordance with applicable industrial safety requirements
- Adaptation for specific materials or process conditions
- Integration of additional components for drying or process optimisation
- Project-specific design to meet customer requirements
Used HAMMER MILLS inspected and supplied directly by HAZEMAG
Used HAZEMAG HNM hammer mills offer reliable performance and robust construction. Before delivery, machines are technically inspected, refurbished and, where necessary, fitted with genuine spare and wear parts.
This helps ensure that the hammer mill remains suitable for industrial processing applications in its second service life.
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Tip: The range of available used machines changes regularly, from hammer mills and impact crushers to roll crushers. Our team will help you select the right machine for your application.
Your advantages when buying a used machine:
- Technically inspected hammer mills with a documented condition
- Refurbishment using genuine HAZEMAG spare and wear parts
- An economical alternative to a new machine with reliable operation
- HAZEMAG support with integration, commissioning and service
Additional Equipment for Other Process Stages
In addition to the HNM hammer mill, HAZEMAG offers other hammer mills for different material and process requirements. These include the single-rotor HUM hammer mill and the UniRotor Vario HUV.
Further information about the HNM hammer mill
The HNM hammer mill reduces material by impact and shear. Two non-reversible rotors with freely swinging hammers enable high throughput within a compact machine width.
The hammers, impact bars, spacer bars and grates can be configured to suit the material properties, moisture content and required final fineness. Where required, the HNM can be designed for combined grinding and drying. Actual energy demand depends on the material and operating conditions.
Key features:
- Energy transfer through freely swinging hammers
- Adjustment of processing intensity through rotor and grate configuration
- Combined size reduction and drying where required
The HNM hammer mill is designed for continuous industrial operation. Its robust housing and clearly arranged construction support stable processing with varying material qualities.
Hydraulically opening housing sections facilitate access to the rotors, hammers and liners. Maintenance and wear-part replacement must be carried out with the machine safely stopped and isolated, in accordance with the operating instructions.
Key features:
- Design in accordance with applicable safety requirements
- Access to the grinding chamber with the machine safely stopped
- Clearly defined operating and maintenance areas
The HNM hammer mill is integrated as a fine grinding stage in industrial processing and production lines. It can be configured for dry or moist materials and for central or lateral feeding.
HAZEMAG supports the design of the feeding and discharge arrangements and their coordination with downstream processes such as classification, storage or thermal treatment.
Example process flow:
Material feed → HNM → material discharge → downstream classification or dust collection, depending on the plant concept → storage or further processing
Interfaces:
- Mechanical connections to feeders and conveying equipment
- Integration into existing plant control systems
- Transfer of operating and process data
The HNM hammer mill is designed to support economical operation and stable processing. Wear parts such as hammers, grates and liners are replaceable and designed for a long service life.
Combining several process steps in one machine can reduce investment and operating costs. HAZEMAG helps assess the economic performance of a solution using your material and operating data.
Typical influencing factors:
- Throughput and required product fineness
- Material properties and moisture content
- Wear on the hammers
- Maintenance intervals and downtime
Questions and answers about the HAZEMAG HAMMER MILL HNM
A hammer mill reduces material by impact and shear. Freely swinging hammers strike the feed material and reduce it to the required fineness. This principle is particularly suitable for soft to medium-hard materials.
The HNM hammer mill is used for fine grinding and optional combined grinding and drying of mineral and industrial raw materials. Typical applications are found in the building materials, raw materials processing and manufacturing industries.
The HNM is suitable for materials including limestone, gypsum, dolomite, anhydrite, quicklime, clay, salts, phosphates, glass and selected industrial by-products and electronic scrap.
The HNM hammer mill uses freely swinging hammers and is designed for the fine grinding of soft to medium-hard materials. Impact crushers use rigidly mounted blow bars, while roll crushers reduce material mainly by compression between counter-rotating rolls. The appropriate machine depends on the material and the required final product.
Yes. The HNM hammer mill can be configured for combined grinding and drying, allowing size reduction and drying to take place in a single process step.
Final product fineness is controlled using impact bars, spacer bars and grates. This allows the hammer mill to be adapted to different application requirements.
Yes. HAZEMAG provides spare parts and professional service support. Genuine parts such as hammers, grates, wear plates, rotor components and bearings are available and designed for a long service life.
Take the next step with HAZEMAG
For the design of high-performance size reduction systems, HAZEMAG is your experienced partner. Based on your materials and process requirements, we develop tailored concepts for reliable and economical fine grinding. Our specialists support you from the initial analysis through to the integration of the HNM hammer mill into your plant.

