Piling Roller Bits

Roller Bits are essential tools in foundation drilling, designed to penetrate low-fractured, hard rock formations with UCS ranging from 60 MPa to 350 MPa.

Originally derived from the Tricone roller bit used in oil and gas drilling for over a century, FIRMTECH Roller bits have been adapted for foundation drilling. Unlike traditional Tricone bits, which are designed for full-face drilling with efficient cuttings removal and cooling via drilling mud, Roller Bits in foundation drilling are optimized to cut only an annular space. Given the unique challenges of piling applications, our Roller Bits feature significant upgrades to ensure optimal performance in these demanding conditions.

Additional Support

Select Roller Bit

Selecting the appropriate tooth type and quality based on the geological formation is crucial for optimizing drilling efficiency.

Improve Tool Design

A well-designed core barrel enhances debris removal, significantly improving drilling efficiency.

Welding Instruction

Correct roller bit placement and welding accuracy are vital for achieving the desired drilling results.

Operation Tips

Proper control of drilling weight and rotating speed directly impacts penetration rates and roller bit wear.

Roller Bit Welding Guidance

Angel Zhang
Product Manager

Our team provides clear, step-by-step guidance on welding roller bits for hard rock drilling. Learn from experienced experts like Angel Zhang to ensure long-lasting performance and optimal results.

1200mm Roller Bit Core Barrel - Guangdong

Rock type: Grainite
Roller Bit Type: MH-3 Conical
Rock socketing length 1.5D
Drilling rig: SR405R
Penetrating rate: 0.7m/h due to part rock weathered

1800mm Roller Bit Core Barrel - Wuhe Subway Station

Rock Type: Fresh hard grainte
Roller Bit Type: MH-3 Conical
Rock socketing length: 35m+
Drilling rig: Zoomlion 550L Pile Length: 95m
Core barrel Height: 3.5m

1200mm Roller Bit Core Barrel - Chengdu

Rock type: Tuff
Roller Bit Type: MH-3R Conical
Rock socketing length 2D
Drilling rig: XR360
Penetrating rate: 0.5m/h
Pile length 38m

1200mm Roller Bit Core Barrel -Guangzhou

Rock type: Grainite Gneiss
Roller Bit Type: MH-3 Conical
Rock socketing length 2-5m
Drilling rig: XR360
Penetrating rate: 0.4m/h
Pile length 30m

1200mm Roller Bit Core Barrel - Aisa

Rock type: Grainite
Roller Bit Type: MH-3 Conical
Rock socketing length 2D
Drilling rig: Bauer BG28
Penetrating rate: 0.5m/h
Pile length 25m

2500mm Core Barrel with Roller Bit - Middle east

Rock type: Grainite
Roller Bit Type: MH-3H Conical
Rock socketing length 1.5D
Drilling rig: Bauer BG30
Penetrating rate: 0.4m/h
Pile length 32m