Pharmatech Engineers Pvt. Ltd. Supplies High Speed Hammer Type Impact Pulverizer. Pharmatech Engineers Pvt. Ltd or Sehgal Industrial Works manufactures Pharmaceutical & Chemical Equipments. The High Speed Hammer Type Impact Pulverizer is used for pulverizing or grinding of roots, herbs, seeds, leaves, spices, dry fruits, minerals, etc. It features different sizes of screens offering required fineness. This is offered in 25 inches and 32 inches sizes. This High Speed Hammer Type Impact Pulverizer incorporates a granulator having interchangeable S.S. Screens used for dry granulation.