Abstract: At 1:30 p.m. on May 29, 2017, an employee was changing a seal on a power swivel. The rigging chain on the tong broke, striking the employee in the side of his head. The employee suffered a fractured skull and was killed. Keywords: Broken Chain, Fracture, Struck By
[pdf] These drilling towers are used with core drilling rig and water well drilling rig for lifting drill tools. They are also used to locate and hang the hoisting system of the drill rigs. In the drilling construction process, the drill tower can lower drill pipe or casing.
[pdf] Our company is going international. As a professional manufacturer of drilling equipment, we can supply high quality crawler drilling machine, hydraulic drilling machine. JK Drilling has established a.
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