NWL Wireline drill rods are manufactured from the best quality heat-treated seamless steel tubes according to S135 steel grade standard. Ultimate tensile strength,yield strength, high precision and good straightness provide the best performance under different drilling conditions.
Case hardening on rod’s end protects thread connection and increases its wear resistance and rod life.
we has many years of experience in manufacturing coring drill rods, we try to provide you the most cost-efficient products.
Retrieving core samples from deep holes requires trust worthy equipment and tools . Unnecessary pulling of rods from these depths is time consuming – and time is money!
We’re always pround of our drill rods' quality.
We choose the best steel tubes in the market to manufacture our drill rods and pipes. Spot check will be conducted after the steel tubes delivered to company. We will make sure the compositions and specifications match the inspection report form the suppliers.
Based on the depth of drill bore, WL series wireline core drill rods are classified into A and B grades. A grade drill rod is entire-length or ends thermal processed and B grade drill rod is entire-length processed.
Material:30CrMnSiA or 45MnMoB(A grade), XJY850 or BG850( B grade)