Jack Hammer

GT 330 We manufacture a wide range of Drilling Jack Hammers, also known as HOLMAN-SL-30 Jack Hammer that are used in marble drilling,metal mines,tunnels,dam & shaft sinking and other purposes.These hammers have one touch operation and require less maintenance.These hammers are helpful in easy as well as effective drilling. The different models available are: 330 HD - Hand held dry type drill Light in weight and air flushed, these heavy duty drills are high performing and suitable for surface drilling purposes in mines & quarries. 330 HW - Hand held wet type drill our water flushed rock drill are suitable for underground and tunnel work for horizontal and inclined drilling 330 PW - Pusher drive wet type drill The technical specifications of these machines are given below: Jack Hammer GT 330 Features 300 HD 330 HW 330 PW Weight 25 Kg. 25 Kg. 23 Kg. Air Connection 3/4" (19 mm) 3/4" (19 mm) 1" (25 mm) Water Connection N. A. 1/2" (12 mm) 1/2" (12 mm) Air Pressure 6 Kg (87 PSI) 6 Kg (87 PSI) 5-6 Kg (72-87 PSI) Air Consumption 97 CFM 97 CFM 120 CFM Handle Type BAR Handle BAR Handle D' Handle Over All Length 24 " Chuck Shank 7/8" (22 mm) Cylinder Bore 3" (76.2 mm) Piston Stroke 2" (51 mm) Blows Per Minute 2300