Replaceable Type Roller Bit

MH-3B

Quick Replacement

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.

3rd Generation Cone

• Full Covered 3rd Generation

• Inserts Qty: Maximized 52 pcs 

• OD: 139 mm 

• Feature: Full covered insert, no blind spot

• Performance: Maximum duration & penetration rate

Pin & Bolts Connection

 • Design: Pin for alignment, dual bolts for secure fastening.

• Anti-Loosening: Washers ensure strong, stable connections.

• Fast Replacement: On-site changes completed in just 15 minutes.

• Durability: Built for long-term, heavy-duty use.

Tooth Arrangement

 • Precise Tooth Placement: The flange ensures accurate tooth alignment, eliminating the hassle of on-site positioning.

• High Spiral Design: Facilitates faster slag removal, improving drilling speed and efficiency.

• Optimized Workflow: Reduces downtime, allowing for quicker progress during operations.

Perfect Inserts for Every Rock Type

Engineered for All Rock Conditions—Tailored Solutions for Your Unique Project

Chisel

60-110MPa

Conical

100-180MPa

Spherical

130-280MPa

* Note: only available for 3rd Generation Cone

Large

12MH-3B

Standard

MH-3B

Additional Support

Select Roller Bit

Selecting the appropriate 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

CONTACT US

We are committed to tack the most challenging hard rock project. Our knowledgeable sales staff will find the right tool and solution to make your project more efficient and profitable.

Related Products

Welded Type

Replaceable Type