MH-3 roller bits are specially designed for piling foundation drilling and roller bit core barrel systems in hard rock formations.
Compared with traditional piling roller bits, the MH-3 features an auto-position leg structure that makes welding faster, easier and more accurate on site.
It is widely used for:Core barrel drilling/Hard rock piling/Bore pile foundation drilling/Rotary drilling rigs/Roller bit drilling in high-strength rock formations.
Suitable for Bauer, Soilmec, SANY, XCMG and other rotary drilling rigs.
Technical Specifications:
Cone Size: 139 mm
Insert Type: Tungsten Carbide Button
Insert Count: 50–60 pcs
Rock Hardness Range: 80–200 MPa
Connection Type: Welding
Application: Core Barrel
Application & Suitable Formations:
MH-3 roller bit is engineered for various hard rock drilling environments:
Granite (100–200 MPa)
Basalt (120–250 MPa)
Limestone (80–150 MPa)
Sandstone with hard layers
60-110MPa
100-180MPa
130-280MPa
The cone fulled covered with 52 pieces large inserts leaving no blind spot. You can expect a higher penetration speed and working life.
4th generation automatic positioning body will help you weld the roller with ease and confidence no matter on the site or in the workshop
additional to the traditional sealing, we apply another CNC surface as additional sealing to prevent the dust into the bearing
All the roller bearings covered by the hard alloy to apply extra hardness
Pull the air out of the body, then push the high end grease in, make sure the roller has enough grease for the whole life span
With more than a decade of international trade experience, we understand the logistics, regulations, and technical standards of markets around the world. Our global expertise guarantees smooth cooperation and reliable delivery.
Each drilling tool undergoes strict quality inspection - from raw materials to final delivery. Our commitment to quality ensures that it maintains high performance and durability even under the most demanding drilling conditions.
With the ability to travel frequently and meet clients in person, we gain a deep understanding of on-site conditions and project requirements. This allows us to deliver precise, customized solutions that truly meet our clients’ needs.
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