Thread Wireline Drill Rods Heat Treatment BC BQ Type With ThroughWall

Delivery Time:10,000pcs per month
Certification:ISO API

Thread Wireline Drill Rods Heat Treatment BC BQ Type With Through Wall

Description:

This wire line rod is the equipment that connects the drilling tools and drilling bits, and it is mainly used to transmit power. It mainly consists of a tubing body and two thread ends.

The function of the wire line drill rod :

(1) To transfer torque and rotation from the core drill rig to the drill bit;

(2) To transfer the lifting and pull forces;

(3) To serve a distribution line for the flushing water;

(4) To serve as a distribution line for the inner tube assembly.

A wire line drill rod has a box thread in one end and a pin thread in the other end. Right handed threads are commonly used. The threads are cut directly in the tubing and special separate drill rod couplings are not necessary. Thanks to this ,so called flush jointed design,the wire line drill rods have an even and o constant inner diameter which is a precondition for hoisting the inner tube assembly.The threads are surface treated and the rod is heat treated in order to prolong the life of the wire line rods.

Every wire line dimension requires a matching set of wire line drill rods .i.e.if you change from drilling a B-size core barrel to an other size ,meanwhile you must also exchange the size of wire line rods.

Specification:

No	Size	Drill rod		Thread type	Heat	Raw material	Designed hole depth
		OD mm	ID mm		treatment
1	BQ	55.6	46	DCDMA standard	Heat treatment the whole pipe	30CrMnSiA XJY850	2000m
2	NQ	70.1	60.1				1500m
3	HQ	89	77.8				1000m
4	PQ	114.3	101.6			45MnMoB	800m

Application

Our company’s Wire line drill rods are manufactured from the best quality heat-treated seamless steel tubes (30CrMnSiA or XJY850). Ultimate tensile strength, yield strength, high precision and good straightness provide the best performance under different drilling conditions. Our wire line drill rods are wildly used in fields(like geology , metallurgy, coal, hydrology, civil engineering projects).