EW, AW, BW, NW, HW, AWJ, BWJ, NWJ drill pipe/drill rod with coupling 10ft 5ft 1 3/8"

EW, AW, BW, NW, HW, AWJ, BWJ, NWJ Drill rods

Brand Name: ROSCHEN

Key Specifications/Special Features:

1. Roschen wireline rods are made of strong and ductile geological steel pipes which are entire-length thermal processed.

2. W series dingle tube core barrels are composed of bit, reaming shell, casing and core barrel head.

3. The W core barrels are suitable for drilling straight holes when core examination is of less importance.

Specifications:

1. Standard DCDMA W thread and WT thread

2. W casing for single use applications

3. WT casing for repeated applications

Features:

1. High quality standard DCDMA tubings

2. Easy make and break of casings

3. Long lifespan

Product description:

Raw materials:

. Roschen only choose the best steel tubes in the market to manufacture our 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

Heat treatment control:

. Heat treatment will greatly improve the material strength and increase the thread wear life of the rods and casings

. We conduct either tru-wall or both ends heat treatment to the tube body

. After heat treatment, strength, hardness, straightness and concentricity of the treated tubes will be tested in our lab

Thread opening process:

. Accuracy of threads will determine the use effects and life time of drill rod and casings

. CNC latches and form cutter are used in thread opening processing to minimize error made by anthropic factors

. Additional thread treatment:

. Surface of the threads will be cleaned to remove burr adhered after threads are opened

. Afterwards, the tread surface will be phosphated to improve surface conditions