The Chinese translation is being made; the original is shown for now.
Epiroc is expanding its next-generation ET drill string family with the launch of the Epiroc ET55. The new drill string succeeds the established Epiroc ST58 system.
“ET55 is the true successor to the ST58 drill string. It enables a shoulder drive connection throughout the entire drill string, giving customers access to the benefits of the ET design in applications where ST58 has traditionally been used,” said Fredrik Gransell, head of Strategic Marketing for Tophammer drilling tools at Epiroc.
The ET drill string family has been developed to improve durability and reliability while reducing unplanned stops caused by drill string failure. Its thread geometry also supports easier uncoupling and fewer stuck tubes, contributing to improved drilling time, uptime and operator safety.
Epiroc ET55 joins ET66, ET51, ET45 and ET38 in Epiroc’s growing ET drill string portfolio. ET66, ET45 and ET38 were introduced in 2024 as part of Epiroc’s next generation of drill strings, following extensive modeling, laboratory testing and field trials.
Source: Epiroc
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