About Rock drill maintenance case analysis
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6 FAQs about [Rock drill maintenance case analysis]
Does maintenance cost affect the economic replacement time of a drill rig?
Sensitivity and regression analyses show that the maintenance cost has the largest impact on the economic replacement time of the drill rig. The study finds that decreasing the operating and maintenance costs of the drill rig will have the positive effect of increasing the economic replacement time linearly for a new model of the drill rig.
How to evaluate the replacement process of a production drill rig?
The developed methodology allows an innovative practical evaluation of the replacement process by applying sensitivity and regression analysis to rank the factors affecting the replacement time of existing and new models of the production drill rig.
What is the economic replacement time model for mining drill rigs?
In mining operation equipment replacement represents a strategic decision problem. This paper presents an economic replacement time model for mining drill rigs. A total ownership cost minimization model was developed to optimize the lifetime of a drill rig used in Tara underground mine in Ireland.
What is a drilling rig maintenance strategy?
Table 1. Maintenance strategy defined for the drilling rigs. Preventive maintenance programs have been performed daily, weekly, and periodically. On the other hand, other scheduled maintenance programs, such as oil and filter changes, have been developed based on the engine time (ET).
Is mining equipment replacement a strategic decision problem?
Provided by the Springer Nature SharedIt content-sharing initiative In mining operation equipment replacement represents a strategic decision problem. This paper presents an economic replacement time model for mining drill
What is the optimal replacement time (ORT) of a drilling machine?
Equivalent present value of these costs by using discount ratewas considered. The proposed model shows that the absolute optimal replacement time(ORT) of a drilling machine used in one underground mine in Sweden is 115 months.Sensitivity and regression analysis show that the maintenance cost has the largest impacton the ORT of this machine.


