FLOATING CUSHION SUBS

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2022年11月17日

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FLOATING CUSHION SUBS



Roschen floating cushion subs (FCS) are utilized in both slanted and vertical drilling operations to reduce vibration and wear of the drill string and drill rig components. Foremost manufactures several FCS models for mining, construction, water well and oilfield applications. The sliding spindle of the cushion sub permits the threads of the mating drill string components to float together or apart during rotation without any axial movement of the rotary drive. This decreases the impact on the rotary drive when the two mating threads are joined and decreases the load on the threads of the mating components.


Highlights


The Floating Cushion Sub performs two important functions:


1. It provides a means of making up and breaking out threaded connections without damaging threads.

2. It prolongs bearing and gear life of the rotary top drive.

3. Roschen floating cushion subs are an economical accessory with the proven ability to help increase tooling life and reduce equipment downtime.


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