Manufacture and repair of drilling
equipment and tools for HDD
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    of HDD drill rods

Drill rods

The boring head – the integral component of the HDD installation. The main function – a torque transmission from the HDD installation and transportation of flushing solution to a nozzle of a boring head. The boring column is formed so. Appearance represents a metal pipe with a thread. In process of advance of a boring head its one bar is added, being twisted in another. 

Production of drill rods

At production of this tool for HDD the main factors is quality. At breakdown in drilling process it is extremely difficult to get a bar from a well. Therefore only strong and reliable components are allowed to use.

Two ways of production are applied: welded and solid-forged. Without having a connecting seam, the shod pipe is considered much more strongly. However in view of use of bigger volume of metal, she is dearer the welded.

Bars differ with an allowable load, bend radius and a tension. A type of a thread, thickness of walls, diameter, length and thickness of a wall of a pipe – the main parameters at a choice of the equipment for installations HDD.

Ø (inch)Bar of Ø (mm) Boring Ø lock (mm)Length (m)
1.66

42

48

2.00
1.90

48

54

3.05
2.06

52

57.5

3.05
2.06

52

63.5

3.05
2.06

60

67

3.05
2.375

60

70

3.05
2.375

60

70

4.57
2.875

73

82

4.57

Operating conditions of drill rods

In use it is not allowed to exceed admissible bend radius. It becomes frequent the break reason. When drilling it is necessary to watch the direction of the equipment and to use only compatible component parts. At implementation of pilot drilling it is necessary to avoid too frequent correction of the direction.

GOST for drill rods

The made drill rods meet all established state standard specifications standards on durability and reliability.

Where to buy drill rods?

The Tekhnoprok company produces drill rods of different length and diameter. It is possible to buy the qualitative equipment for any HDD installations from us. The price of component parts is acceptable for all types of works and answers conditions of the modern market.

Our low price of products allows to pay back quickly invested funds, thus smooth operation of the equipment is guaranteed.


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