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Quick Details

Product name: rotary drill kelly bar
Type: interlocking or friction kelly bar
material of 1st-2nd sections: 16Mn
material of 3rd sections: 27SiMn
material of 4th sections: 35CrMo
Size/diameter: as per customer demand
Color: yellow or Customized
Application: drilling rig
Certification: IS9001

Specifications

 High telescopic piling tools borehole kelly bar

 

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

 

 

Product Description

 

 

Features of our kelly bar 

a) . Material & Technical---35CrMo / 27 SiMn .Q345C high alloy seamless steel pipe under quenched-tempered heat treament.

b) . Professional experienced R&D department, strictly QA&QC development.

c) . Feedback within 24 hours from professional consultors.

d) . Higher hardness, higher flexibility,excellent welding technology.

e ) . Thinner tube, smaller inter-tube distance, good abrasion resistance.

f) . Advanced technology of 6-key design, standard modular design

 

A) Interlocking kelly bar

 

Interlocking kelly bar can be two type: one is 3 or 6 sets external straight bar with 3 or more pressure boards. The other is 3 sets external straight with full pressure keys on it, apply for IMT rigs. This interlocking kelly bar mostly used for hard layer, like rock or stone layer etc,.

 

Interlocking Kelly bar

Type

Outdiameter (mm)

Section

Depth(m)

Torque(KN.M)

DZ340-3-13

340

3

36

120

DZ 356-3-13

356

3

36

120

DZ377-4-14

377

4

52

150

DZ406-4-14

406

4

52

200

DZ 445-4-15

445

3

56

250

DZ 445-3-15

445

4

42

250

DZ470-4-15

470

4

56

250

DZ508-4-15

508

4

56

250

Note:Paragrame is only as reference, adjusted according the actural need

  

 

 


B)Friction Kelly bar

Friction kelly bar is composed 3 or 6 sets straights wear-resistant seamless alloy strips. Working by rotary Friction power digging hole, apply for soft layer, like mud or sand layer etc,

 

Friction Kelly bar

 Type

 O.D (mm)

Section 

 Depth(m)

 Torque(KN.M)

DZ 340-4-13

 340

 4

 49

 120

DZ356-3-13

 356

 3

 49

 120

DZ 377-4-14

 377

 4

 52

 150

DZ 394-4-13

 394

 4

 36

 200

DZ 406-5-14

 406

 5

 64

 220

DZ 406-5-15

 406

 5

 70

 250

DZ 419 5-15 

 419

 5

 70

 250

DZ 440-5-15

 440

 5

 83

 250

DZ 470-6-16 

 470

 6

 89

 250

DZ 508-6-16

 508

 6

 89

 280

DZ 530-6-18.7 

  530 

 6 

 110 

 300 

DZ580-6-18.7

 580

 6

 110

400

Note:Paragrame is only as reference, adjusted according the actural need.

 

   

 

 

Packaging & Shipping

 

Packing of Drill equipment auger bit Customized or Genral packing (Wood box+PVC bag+stock)
Delivery time within 15 days after deposit
Payment  T/T 50% deposit, 50% balance before out of factory
Trade terms FOB Tianjin CIF AS YOU REQUEST

 

 

Our Services

1) Standard or OEM or customized products are provided 

2) Track the production 

3) Arrange samples for inspection if needed 

4) Take photos for confirmation ,or make testing by the Third party before shipment 

5) Arrange for customs clearance 

6) Track the shipment

7) Track problems after order 

8) Collect suggestions from customers 

 

Company Information

 

Beijing Dazheng  Yongye Construction Mahinery Co.,Ltd ,founded in 2008 ,with more than 8 year`s manufacture experiences in Rotary drill spare parts ,is specialized in supplying variours drilling tools ,include bullet teeth (round shank cutter bits ,cutting bits,drilling teeth ),drill bucket.,core barrels,drill augers,kelly bars,speed reduces.
 

 

1. Factory Picture