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 FIRMTECH Pro model MH-3, inheriting its advantages and further featuring convenient replacement and precise welding positioning capabilities.

Replaceable Type Roller Bit

Slot & Bolts Connection

• Base slot with dual-bolt connection

 • Threaded Rollers: Ensures stable connection strength over time

• Durability: Maintains high strength, resisting wear and tear

• Easy Maintenance: Reduced contact area for easier roller replacement

Holder

• Spec.125mm*80mm*120mm

• Seamlessly integrated and precisely machined for optimal fit.

• Minimizes the impact of welding heat on the bearing system.

• Accurate positioning, quick replacement.

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

Current spec. similar to 8.5", we also have 12.5" roller cutter, which could customize as per request

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

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

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

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

BASIC

CLASSIC

LARGE

HOLDER TYPE

BOLTS TYPE

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