Sucker rods and couplings are essential components of artificial lift systems, particularly in rod pumping systems used in oil and gas wells. They play a crucial role in lifting crude oil from the reservoir to the surface. Couplings are threaded connectors used to join individual sucker rods into a continuous rod string. Wear occurs due to constant contact of couplings with the tubing in the repetitive motion. Especially, in corrosive well conditions, this wear is accelerated, leading to rapid material degradation and potential system failure.

When it comes to achieving a flawless finish on metal parts, different industries rely on several polishing methods to achieve their goals—each with unique benefits. Whether it’s aerospace, medical, or high-performance tooling, the right polishing method can have a big impact on the final product. Let’s explore some of the most common polishing techniques and how they compare, ending with a closer look at the science behind air lapping, a technique rapidly gaining popularity for high-precision applications.