84 5kg weight down the hole hammer

{"cid":"91182652","title":"High Air Pressure SRC54 RC Reverse Circulation Hammer with 130mm Diameter and 84.5kg Weight for Efficient RC Drilling","imgUrl":"https:\/\/img.ismap.com\/nimg\/16\/dd\/b876219fee8318d4c9da15c19a7a-200x200-1.jpg","attrs":{"Price":"$1,500","Brand Name":"Sollroc","Minimum Order Quantity":"1","Place of Origin":"Hunan, China","Weight":"84.5kg","Diameter":"130mm","Length":"1294mm","Thread type":"Remet \/ Metzke","Hole range":"135-152mm","Bit Shank":"SRC54\/SRC54R","Working Pressure":"1.5-3.5Mpa","Impact rate":"35Hz","Rotation speed":"25-40r\/min","Air consumption":"16m3\/min at 1.7Mpa, 22m3\/min at 2.4Mpa, 28m3\/min at 3.0Mpa","Material":"Carburized steel","Max depth":"500 metres","Connection thread":"4.5'' Remet \/ 4.5'' Metzke","Drilling method":"Reverse circulation","Sample collection":"Compressed air"}}