Interlock kelly bar - Product

^{UNIT PRICE^{FOB USD20000/PC}}

^{MINIMUM QUANTITY¹}

^{WARRANTY^{1 YEAR}}

Place of Origin : Beijing,China
Delivery Terms : FOB
Delivery Time : 15-20 DAYS
Product Capacity : 50/WEEK
Payment Terms : TT,LC

Product Description

1. High quality and competitive price
2. Different type of kelly bar combined and advantage together
3. Long time use
Kelly bar is the key part of a drilling machine, and its quality directly affects the performance of the whole machine. The main purpose of kelly bar is to transfer the torque of rotary drive and the crowd pressure of the crowd system to the drilling tool. Based on the rich manufacturing experience and by absorbing the advanced technology both ant home and abroad.

Basic Information

Brand : DZ
Model : DZ254-DZ559
Material : Q345C
Color : YELLOW,BLACK
Expiry/Validation Period : 1 YEAR

Physical Specification

Size or Volume : ALL KINDS
Weight : 11TON-17.5TON
Other Specification : 1.taper Drill Rod And Integral Drill Rod 2.durable Steel Material For Longtime Use 3.high Quality And Reasonable Price Kelly Bar For Rotary /piling/ Foundation Drilling Mechanical Interlocking Kelly Bar Usually Have The Interlocking Kelly Bar Or Six Keys. There Are Three Large Groups Or N Groups Pressure Concave Parts In The External Key, Three Or Six Wear-resistant Keys In The Internal Keys. The Length Of The Bar Is Less Than The Length Of Large Concave Tine Of The External Key. When The Driving Force Rotates, The Internal Key Of The Driving Set Or The Internal Key Of Kelly Bar Rotate To The Large Concave Tine Of The External Key, And Formed A Kai-type Pressuring Point. Driving Force Head Send Pressure To The Drill Head, Then Forms A Mechanical Locking. A Full Rotary Drill Head Must Be Rotary In The Opposite Direction To Unlock, Then Smoothing Reversal Upgrade. This Kelly Bar Is Used For Hard Or Soft Layer To Drill, Which Have Better Transmission Pressure. This Kelly Bar Need To Move Driving Force Head Up And Down. When Drilling In Hard Layer,. It Transfer Pressure After Find The Large Concave Meshing Tine In The External. At Resent,the Mechanical Pressuring Kelly Bar Is Usually Combined With Three Sections, Four Sections And Five Sections, With The Drilling Depth In The Range Of 36-80 Meters.

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