Hammer Mills are best suited for application which require a coarse particle size reduction. The fineness can be adjusted by adjusting the sieve size like in a traditional Micro Pulverizer. The Input feed sizes can be large lumps (Around 300- 400 mm) and therefore, Hammer Mills are also used for first stage of size reduction with the output being further processed with fine grinding mills like Micro Pulverizer or Bar turbo Mills. Most common sieves sizes used are 3mm, 5mm and 8 mm.