Hammer Mill
Product Overview
Hammer mills are used for crushing, pulverizing and deagglomeration of medium-hard, hard, brittle, tough and fibrous samples.
The Hammer Mill accepts large feed sizes up to 100 mm which can be reduced to less than 0.8 mm, depending on the sample properties.
User Convenience Combined with Maximum Safety
Easy cleaning of the rotor and the hammers thanks to :
- Fold-back hopper to gain access to the crushing chamber from above
- Additional fold back option in the middle part of the machine allows easy cleaning of rotor and hammers from below
To ensure a long service life of the machine, even when mostly used for tough crushing tasks, the following parts can be exchanged by the user :
- Wear plates inside the mill
- Rotor with the swing hammers
A safety switch and the brake motor ensure that the unit comes to an immediate stop, e.g. if the door is opened unintentionally.
Defined Particle Size Thanks to Different Sieves
The achievable final fineness of the sample depends on the material's properties. Hard and brittle materials can be easily crushed in the Hammer mills down to particle sizes below 0.8 mm. The range of sieves with aperture sizes from 2 mm to 40 mm allows for perfect adaption to application requirements.
Tough, fibrous, or moist samples like plastic toys, wood or humid coal can be successfully crushed in the hammer mill when choosing a sieve with medium to large aperture size.
Hammer Mill Hoppers and Collecting Systems
The Hammer Mill is suitable for batchwise as well as continuous grinding and can be equipped with different hoppers and collecting systems:
- Standard hopper for quick and easy feeding of large sample amounts
- Long stock hopper beneficial for feeding elongated particles
- Standard collector for size reduction of sample amounts up to 10 L
- Collector for large volumes accommodating up to 30 L
- Continuous operation using gravity outlet and a customer-specific collecting system
Functional Principle
A hopper leads the sample material into the grinding chamber of the hammer mill.
The Hammer Mill is equipped with a horizontal rotating shaft on which 10 freely swinging hammers are mounted. These hammers crush the material at high speed inside the grinding chamber. With swing hammers, in contrast to fixed hammers, the risk of blocking the machine as well as wear is minimized.
The material is crushed by impact when hit by each hammer and while bouncing inside the grinding chamber. As soon as the sample is fine enough to pass through the sieve, it falls through the gravity outlet into a collecting vessel.
Technical Specifications
Applications :
- coarse and pre-crushing, desagglomeration
Field of application :
- agriculture, chemistry / plastics, coal, construction materials, engineering / electronics, environment / recycling, food / feed, geology / metallurgy, glass / ceramics
Feed material :
- medium-hard, hard, brittle, tough, fibrous
Size reduction principle :
- impact, shearing
Material feed size :
- < 100 mm
Final fineness :
- < 0.8 mm
Batch size / feed quantity :
- up to 30 l depending on collecting receptacle
Speed at 50 Hz (60 Hz) :
- 3000 min-1 (3500 min-1)
Throughput :
- 1500 kg/h
Rotor peripheral speed :
- 31.4 m/s
Rotor diameter :
- 200 mm
Types of rotors :
- 10 swing hammer
Dry grinding :
- yes
Wet grinding :
- no
Cryogenic grinding :
- no
Material of grinding tools :
- hardened steel 1.0503 (hammers); steel 1.0330 (sieves)
Sieve sizes :
- 2 / 3 / 4 / 5 / 6 / 8 / 10 / 15 / 40 mm
Dust extraction unit :
- yes
Process line version :
- yes
Collector capacity :
- 10 l, 30 l, continuous outlet
Drive :
- 3-phase motor
Drive power :
- 1.5 kW
Electrical supply data :
- different voltages
Power connection :
- 3-phase
Protection code :
- IP 54
W x H x D closed :
- 700 x 1570 x 750 mm
Net weight :
- ~ 150 kg
Standards :
- CE
Hammer Mill Related Products
Other specialized products for engineering, technical educational and scientific laboratories such as Hammer Mill.
Buy Hammer Mill from India's Trusted Manufacturer
Stemlab Export is a leading manufacturer and exporter of laboratory and scientific equipment in India, supplying institutions and bulk tenders worldwide — with direct factory pricing, recognised standards and global exports.
Direct from Factory
No middlemen — manufacturer pricing, full quality control and quick quotations on every product.
Standards Compliant
Built to recognised standards such as ASTM, IS and BIS where applicable, accepted by institutions and tenders.
Bulk & Tender Quantities
Supplied in bulk volumes to procurement bodies, education ministries and global tenders.
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Exports to 30+ countries with complete documentation and logistics handled in-house.
Who Uses Our Hammer Mill?
Our Hammer Mill is engineered for teaching laboratories, research facilities, government projects and international export contracts. Every unit ships with quality documentation, standards compliance and dependable after-sales support.
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