Hammer Mill
Model No. :
Model No. : HM 200
Brand : Retsch
The HM 200 is a robust hammer mill specifically engineered for the high-volume processing of large, hard, or brittle materials into fine powders. It utilizes high-impact energy to break down feed samples efficiently, making it an essential tool for bulk material preparation in industrial and laboratory settings.
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Accommodates large feed sizes up to 100 mm
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High throughput capacity for bulk processing
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Final fineness achieved down to < 2 mm
− Features
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 openend unintendently.
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 HM 200 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.
Hoppers and collecting systems
The HM 200 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
- The Long stock hopper is beneficial for feeding elongated particles
- Standard collector for size reduction of sample amounts up to 10 l
- For large volumes a collector is available which accommodates up to 30 l
- Continuous operation: Use the continuous gravity outlet and a customer specific collecting system
+ Technical Specifications
+ Standards
+ Resources
Features
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 openend unintendently.
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 HM 200 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.
Hoppers and collecting systems
The HM 200 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
- The Long stock hopper is beneficial for feeding elongated particles
- Standard collector for size reduction of sample amounts up to 10 l
- For large volumes a collector is available which accommodates up to 30 l
- Continuous operation: Use the continuous gravity outlet and a customer specific collecting system
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 |
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