Crown 750 drilling rig

HP Rating: 750HP Powered By: (1) Series 60 MTU Engine (665 BHP @ 1,800 RPM); Allison 6610 Auto Transmission Rig Type: Self-propelled, carrier Mounted, 7-Axle (14×4), Internally guyed 1. 1.1. Single dru. [pdf]

Indonesia 100 type down-the-hole drilling rig

In the application of drilling machinery, the air-leg rock drillcan only drill small-aperture, medium-shallow blast holes; the heavy-duty rail-type rock drill can also drill deep blast holes through the post, but the en. [pdf]