Tricone Drilling Bit
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  • Roller Bit

Roller Bit

Core Barrel, Roller Bit, drilling bit, rotary drilling bit, tricone drill bit, tci bit

Rotary drilling rig bit can be also named Core Barrels, they are used to cut an annular ring in rock or concrete or reinforced concrete. The center core of the rock or concrete is usually crushed with rock auger. The most important advantage of a core barrel is that it assists to concentrate the torque and crowd force on a small ring of cutting teeth. 


Core Barrel, Roller Bit, drilling bit, rotary drilling bit, tricone drill bit, tci bit

Product Details:

Place of Origin:Tianjin, China (Mainland)
Brand Name:GRAND
Certification:ISO9001 ISO14001 API

Payment & Shipping Terms:

Minimum Order Quantity:1 set
Packaging Details:Wood box (free-fumigation)
Payment Terms:T/T, L/C
Supply Ability:500 Pieces per month

Detailed Product Description

Model Number:Core Barrel With Roller BitMaterial:Q345B 45# Alloy Steel
Color:RequirementAdvantage:Europe Standard High Quality
Application:For Strong Rock Formations (Compressive Strength ≥130Mpa).Kelly Box Type:Bauer Sany Soilmec IMT...
Machine Type:Rotary Drilling RigSize:520mm-2500mm
Part Name:Core Barrel With Drilling Teeth

Application- For strong rock formations (Compressive strength ≥100Mpa).
Features- Kelly Box size
130; 150; 200mm
- Roller Bits are API Certificated, complete of bearing and carbide insert
Suitable for Rotary Drilling RigBAUER, SANY, XCMG, SOILMEC, MAIT, IMT.

Roller Bits
> API Certified
> Forging Process
> Welded Type or Replaceable Type
> Sealed Bearing And Tungsten Carbide Insert
Cutting Ring
> Material: Q345B
> Thickness: 30mm; 40mm
> Height: 170mm; 250mm: 400mm
> Material: Q345B
> Thickness:16mm, 20mm, 25mm, 30mm
> Height: 1200mm, 1500mm, 2400mm
Kelly Box
> Material: Q345B
> Plate weled type
> Size: 130mm, 150mm, 200mm

Core barrels are generally divided into two types:
1- Core barrel with bullet bits (Applicable for strong rock up to 100Mpa or rock with deep cracks)
2- Core barrel with roller bits (Applicable for very strong rock formations with Compressive strength greater than 100Mpa)

Cutting Diameter Range: 600-2500mm

Core Barrel with Roller Bit

Drilling Dia.(mm)Barrel Length(mm)Barrel Thickness(mm)Roller Bit(pcs)


Core Barrel, Roller Bit, drilling bit, rotary drilling bit, tricone drill bit, tci bit, PDC bit, hybird PDC bit, drilling bit, rotary drilling bit, tri-cone drilling bit, HDD bit, HDD reamer


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Tianjin Grand Construction Machinery Technology Co., Ltd. deeply engaged in rock breaking tools more...

Tianjin Grand Construction Machinery  Technology Co., Ltd.
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  • +86 22 8629 1597

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