Product Details

rotary drilling telescoping bar friction kelly bar for hydraulic drilling rig on sales

Specifications

Interlocking and Friction kelly bar:
1.Light weight
2.High strength
3.Good abrasion resistance
4.Cost-effective

Product Description

What FAE could offer?

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

Advantages

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.Interlocking Kelly Bar

2.Friction Kelly Bar

1) Interlocking Kelly Bar

Interlocking kelly bar is used with pilling rigs for drilling in dense sand,gravel and weak to strong rock . The interlocking kelly bars can be fully locked by mechanical locking system on each section.Kelly bars can be

equipped with specially designed springs or pressure plates for shock absorbing purpose.

What is the specifications of drilling friction kelly bar?

Please check details as below:

Name of product	EXternal dimeter (mm)	Pith No	Length section (m)	Rated tarquel (KN*M)	Depth (m)
Interlocking kelly bar	355	3	10-13	180	27-36
	377	3,4	10-12.5	220	27-44
	406	3,4	10-15	230	27-57
	419	3,4	10-15	250	27-57
	440	3,4	10-15	250	27-57
	470	3,4	10-17	280	27-65
	508	3,4	10-17	320	27-65
	530	3,4	10-20	380	27-76
	575	3,4	10-21	420	27-80
	630	3,4	10-21	450	27-80

2) Friction Kelly bar

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.

What is the specifications of drilling friction kelly bar?

Name of product	EXternal dimeter (mm)	Pitch No	Length section (m)	Rated tarquel (KN*M)	Depth (m)
Friction kelly bar	355	4,5	10-13	180	36-60
	377	4,5	10-14	200	36-65
	406	4,5	10-15	210	36-70
	419	4,5	10-15	250	36-70
	440	4,5	10-15	250	36-70
	470	4,5,6	10-17	280	36-95
	508	4,5,6	10-18.5	320	36-103
	530	4,5,6	10-19	380	36-106
	575	4,5,6	10-21	420	36-120
	630	4,5,6	10-21	450	36-120

3) Combined Kelly bar

1.high efficiency
2.low price and best service

Main application: Used in the hard strata above, but soft blow deep pile hole construction.

What is the specifications of drilling friction kelly bar?

Combined type kelly bar for drilling rig
Type	O.Dia.(MM)	Section	Depth(m)	Torque(KN.M)
JT12 340-3x13	340	3	36	120
JT12 356-3x13	356	3	36	120
JT15 377-4x14	377	4	52	150
JT20 406-4x14	406	4	52	200
JT22 406-4x14	406	4	52	220
JT25 445-4x15	445	4	56	250
JT25 445-3x15 (Reinforced)	445	3	42	250
JT25 470-4x15	470	4	56	250
JT25 508-4x15	508	4	56	250
JT28 508-5x15	508	5	70	280