ER-Di Pneumatic hammers are air impact machine and especially used at underground coal mines for breaking and plucking easily. The macine uses at different areas such as; mine, rock, clay, refractory rock, concrete,breaking concrete,constroction etc. 2 different type produce by our company. Performance and working procedures are same at both of it but their handle are different. Accept some parts at the handle, both machine's other spare parts are same, standart and match with each other. There is no working system and performance differences between the machines.Our Products use ATEX certificate.