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C133 Series Roller Cutter

C133 Foundation Roller Cones-Weld Type


core barrel roller cone tricone cutter roller bit




C133 Series Replaceable Type


Bearing Structure


Features of C133 Series

1 Journal sealed bearing with TCI protection on heel of cones
2 Cone1、2、3 speed up rock breaking rate
3 Shirttail hard enhanced by Tungsten Carbide
4 C133-537 adopts 14mm chisel TCI, C133-637 adopts 13mm conical-ball TCI
5 C133 series roller cones has very high cost-effectiveness, it is regular model in rotary drilling field


Technical specification of roller cone bit C133

Raw Material
Cone 20CrNiMo
Arm 20CrNiMo
Tooth Tungsten Carbide Inserts
Tooth Type
Tooth Qty.&Diameter Cone1: 43PCS / 13mm,    Cone2: 45PCS / 13mm,    Cone3: 41PCS / 13mm
Tooth Height Total height: 17mm,    inside height: 10.5mm,    outside height: 6.5mm
Bearing and Lubrication
Tungsten carbide enhanced on bearing
A Yes  
B Yes  
C No  
Grease Lubrication & Bearing Seal
O-ring Seal. Inject grease NOT by vacuum machine

Developed in year 2013, this square arm roller cone bits is almost the first square arm roller cone bits famous in foundation rock piling field in China and the world, it is still in hot selling from year 2013 by its high cost-performance, so we name it "Classical Roller Cone Bits-Generation 1" in piling field.

The first batch for testing in Shenzhen China at year 2013 reached 65 meters depth in drilling 120MPa hardness rocks, high drilling speed and perfect performance makes it popular in China and South-East Asia rapidly and copied by many factories.

One set of classical roller cone bits has Cone 1, Cone 2, Cone 3, they have same shapes, length of Tungsten Carbide inserts(teeth) with bit-thirds (1/3) of Tri-cone bits, the 3 cones works together could get higher penetrating rate and faster drilling down speed to save cost.

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