Drill Stem Sub

Quzhou Shenjian Machinery Factory has a full production system. We have 30 CNC lathes in our workshop. We also have 3 milling machines, 2 friction welding machines, 1 machining center, and 1 steel pipe upsetting machine. The drill stem sub is a custom-made product. Customers need to specify the outer thread size, inner thread size, and length. We produce according to the customer's drawings. The main material is 40Cr alloy steel. The connection type is same-diameter butt joint. The thread specifications are customizable. The total length ranges from 40 to 180 millimeters. This range supports custom sizes. The tensile strength is 750 MPa or higher. This product provides strong and reliable same-diameter connections.

Our products work in many industries. They include mining, infrastructure, water conservancy, municipal construction, geological exploration, and tunnel engineering. The drill stem sub is used for same-diameter connections between drill rods in these projects. For standard products, our delivery time is usually within one week. For custom products, the delivery time depends on the drawings. We communicate with customers throughout production. This ensures we deliver on time. We send pictures for customer confirmation after production. The delivery time for repeat orders is about the same as the first order. This product is built for durability in tough working conditions.

We handle after-sales service through online channels. Customers can contact us online if they have questions about the performance of the drill stem sub. Our products are wear parts. We do not offer long-term warranties. For special cases, we give fair compensation. If goods are damaged during transport, we advise customers to contact the shipping company. We do not accept third-party inspections. We support OEM orders. Customers can send drawings for production. We can make samples, but samples are not free. This product is a dependable choice for your drilling operations.

Specifications

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