ROLLER BIT

MH-1
BASIC
Progressive

MH-2
CLASSIC
Progressive

MH-3
PREMIUM
Progressive

MH-3C
HOLDER TYPE
Progressive

MH-3B
BOLTS TYPE
Progressive
Basic Type
MH-1
The MH-1 is YUXIANG’s most cost-effective roller bit, designed for budget-conscious projects without compromising on performance. Made from durable 20CrNiMo steel and featuring 3rd generation leg and roller cone technology, it provides reliable drilling efficiency.
Its vacuum grease system extends bearing life, and the flat body allows for quick and easy welding, making it an ideal choice for those new to roller bits or seeking an affordable solution for piling projects up to 2000 mm.
Classic Type
MH-2
The MH-2 roller bit is one of YUXIANG’s most trusted products, featuring over 2.3 kg of inserts in each cone. With its legacy as a benchmark in the industry, the MH-2 has garnered widespread acclaim from clients around the globe.
This classic first-generation leg design has been in use for over 100 years, originating from the tricone bit design. Our latest third-generation cone incorporates fully covered inserts, ensuring exceptional performance.
Premium Type
MH-3
Roller bit MH-3 is DRILLNOVA latest and most promising design. It comes from long-time working with clients, deeply understanding the operational problem. It solves the quick welding and high torque drilling weight conflict demand at the same time.
Cominbed with the latest 3rd generation full-covered inserts. You can expect it will outperform any bit in the piling industry.
Replaceable Type Roller Bit
MH-3C
MH-3C series is designed for contractors requiring flexibility and convenience in bored piling operations. It utilizes a dual assurance design combining mechanical bolt connections with welding, ensuring the reliability of connections while allowing for the onsite replacement of roller bits.
The roller bits is derived from the advanced YUXIANG Pro model MH-3, inheriting its advantages and further featuring convenient replacement and precise welding positioning capabilities.
Replaceable Type Roller Bit
MH-3B
The MH-3B Bolted Roller is designed for contractors seeking speed, precision, and reliability in various drilling applications.
Unlike traditional welding methods, the MH-3B uses a high-strength bolt and locknut system to secure the roller into the core barrel. This innovative design allows for fast roller replacement, reducing downtime from days to just 1-2 hours.
Perfect Inserts for Every Rock Type
Engineered for All Rock Conditions—Tailored Solutions for Your Unique Project

Chisel
60–110 MPa

Conical
100–180 MPa

Spherical
130–280 MPa
