Hammer Mills
The robust, industrial hammer mills type HM 142, HM 342 and HM 672 are used for crushing materials ranging from dry to damp, soft to tough, chewy to brittle. Depending on product characteristics and the desired milling result, both types may be equipped with a variety of sieve and bar grate screen inserts. Comfortable acces to hammers, shaft and sieve insert for revision and maintenance is provided by the foldaway fronthousing. The sieve insert in easily changed from the side. The JEHMLICH hammer mills are designed for both standalone operation (batch) and direct integration into a production line.
Both types are available in mild and stainless steel.
Design Sizes of the Hammer Mills
|
Design size |
HM 142 |
HM 342 |
HM 672 |
|---|---|---|---|
|
Motor |
max. 7,5 kW (10 PS) |
max. 18,5 kW (24 PS) |
max. 45 kW (60 PS) |
|
Inlet width |
140 mm (5,5") |
340 mm (13") |
670 mm (26") |
|
Weight |
approx. 300 kg |
approx. 460 kg |
approx. 650 kg |
|
Capacity |
up to 10 t/h |
up to 20 t/h |
up to 40 t/h |
Application of Hammer Mills
Crushing as preparation for fine milling
Crushing of soft to hard, tough or damp materials
Sample preparation for research institutions
Example: Crushing of Rock Salt
This hammer mill is used for crushing rock salt in underground mining. The hammer mill is integrated in the on-site production line. The hammer mill is made of stainless steel to avoid corrosion.
Design size: HM 671
Motor: 30 kW
Operation with frequency inverter at 25-87 Hz
Input material: rock salt
Made of stainless steel
Example: Sample Preparation
This hammer mill is used for preparation of different damp and lumped samples for a following analysis. A manually operated infeed flap enables the secure and batch-wise feeding of the sample material. The grinding stock is collected in exchangeable containers.
To avoid dust formation, an additional aspiration may be applied.
Design size: HM 341
Motor: 7,5 kW
Operation with frequency inverter at 30-60 Hz
Input material: lumps up to 150 mm (6")
Final grain size: 0...3 mm (0 to 0.1")
Manually operated infeed flap
Two exchangeable containers with roll car, each 70 l (18.5 gal)
Example: Molding Sand Preparation
This hammer mill is used for crushing molding sand after the sand-casting process. The molding sand may be re-used for further castings. The hammer mill is integrated in the on-site production line.
Design size: HM 671
Motor: 15 kW
Operation with frequency inverter at 20-60 Hz
Input material: molding sand
Example: Crushing of Ceramic
This hammer mill is used for preparation of damp and lumped ceramic samples for following analysis. A manually operated infeed flap enables the safe and batch-wise feeding of the sample material. The grinding stock is collected in exchangeable containers.
Easy changeable screen inserts enables the adjustment of the mill to the particular crushing task.
Design size: HM 341
Motor: 7,5 kW
Input material: burnt ceramic; approx. 250x140x70 mm (10x5.5x2.8")
Capacity: approx. 1 t/h
Final grain size: ca. 95% < 4 mm (0.15")
Manually operated infeed flap
Two exchangeable containers with roll car, each 70 l (18.5 gal)
Dust aspiration
Example: Pre-Crushing
This hammer mill is used for shredding reindeer antlers as preparation for fine grinding with a REKORD C turbo mill. A manually operated feeder is used for feeding of the antlers pieces. The grinding stock is conveyed pneumatically to the mill REKORD C afterwards.
Design size: HM 671
Motor: 11 kW
Input material: reindeer antlers, sawn to 300 mm (12")
Final grain size: 0...10 mm (0 to 0.4")
Manually operated infeed flap
