Robit rocktools - Eccentric VS Concentric casing system
Автор: YP Robit Rocktools
Загружено: 2013-02-22
Просмотров: 13282
Описание:
Why should it be concentric casing system?
1. Comparison with eccentric systems
-.Better penetration
-.Fast drilling
-.All types of grounds and rocks
-.Maximal straightness of the hole
-.Less torque needed (no eccentric reaming part )
-.Simplicity of start up
2. Comparison with other ring bit systems
-.Simplicity of use
-.Automatic locking and unlocking of the pilot with the ringbit
-.Re-locking possible
-.No jamming
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