The drawworks reels in and reels out the drilling line. The drilling line is connected to the traveling block and hook which connect to the drill string. The drill string runs over the crown block and setup like a block and tackle pulley system.
[pdf] In a drilling rig, the drill line is a multi-thread, twisted wire rope that is threaded or reeved through in typically 6 to 12 parts between the traveling block and crown block to facilitate the lowering and lifting of the drill string into and out of the wellbore.
[pdf] 
electric rock drill manufacturers/supplier, China electric rock drill manufacturer & factory list, find best price in Chinese electric rock drill manufacturers, suppliers, factories, exporters & wholesalers quickly on Made-in-China.com..
electric rock drill manufacturers/supplier, China electric rock drill manufacturer & factory list, find best price in Chinese electric rock drill manufacturers, suppliers, factories, exporters & wholesalers quickly on Made-in-China.com..
Find Rock Drill manufacturers from China. Import quality Rock Drill supplied by experienced manufacturers at Global Sources. .
What are the benefits of partnering with a manufacturer for the wholesale purchase of mine drilling rigs? Our Electric Rock Drilling Machine offers exceptional quality within the Mine Drilling Rig category.By collaborating directly with a manufacturer for wholesale purchases, customers can enjoy. .
This section provides a list of the top 10 Rock Driller manufacturers, Website links, company profile, locations is provided for each company. Also provides a detailed product description of the Rock Driller, including product introduction, history, purpose, principle, characteristics, types, usage.
[pdf] 
