Piling Tools

Friction Kelly bar

Product description:
INQUIRY

Kelly Bar is the key part of a drilling machine,and its quality directly affects the whole machine based on the rich maunfacturing experience and by absorbing the advanced technology both at home and board,we can produce first-class kelly bars which can be matched with drilling rigs of Bouer,Sany,Soilmec,MAT ,IMT,Casagrande,etc.

The Features of AULONE kelly bar are as follows:

1.Adopt the advanced technology of 6-key design in the world and standard modulor design.

2.Equipped with advanced processing facilities .processing technic and manufacturing equipments, AULONE kelly bar enjoys a low weight,high strength,high straightness of single bar,thinner tube,smaller inter-tube distance and good resistance.

3.The raw materials are either imported from Germany like the high abrasion resistance materials ,or from chinese top manufacturer such as the seamless steel tube with alloy.

Material details as below:

First section :16MN(Q345B) ;

Second section:16MN (Q345B) ;

Third section:27 SiMn;

Forth section:35 CRMO

There are mainly two types of kelly bars:

1.Friction Kelly Bar 2.Interlocking Kelly Bar

Friction Kelly bar introduction
Friction Kelly bar is another type kelly of bar, which the external key is composed of 3 or 6 wear -resistant strip without pressunrizing point.This kelly bar can form pressure force when the kelly bar is rotary.can produce peripheral force and the rotary passing down the pressure force,can produce the friction force.This kelly bar has the advantage of opeerating sample .drilling deep,but with less pressure transmission.So this kelly bar is suitable for the soft and silt layer.

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