The HC40 R38 D38 390 shank adapter is a high-performance drilling component designed for HC40 series hydraulic drifters. Featuring a 38mm diameter and a 390mm total length, this striking bar utilizes a standard R38 thread to ensure seamless energy transmission and superior fatigue resistance during high-frequency impact drilling.
Product Specifications
Drill Compatibility: HC40 series hydraulic rock drills
Thread Type: R38
Dimensions: Diameter 38mm, Length 390mm
Performance: Optimized for fast penetration and long service life
Why Choose the HC40 R38 D38 390?
Superior R38 Thread Design: Our R38 threads are CNC-machined to exact tolerances. This ensures a tight coupling with R38 drill rods, minimizing thread vibration and preventing premature joint failure.
High-Grade Carburization: Each HC40 shank undergoes a multi-stage heat treatment process. This creates an extremely hard outer surface to resist wear while maintaining a tough internal core to absorb the massive shock loads of modern drifters.
Exceptional Stability: The 38mm body diameter provides the necessary rigidity to prevent the shank from bending during high-feed pressure drilling, protecting the internal seals and bushings of your rock drill.
Primary Applications
The HC40 R38 D38 390 is essential for:
Mining & Drifting: Fast and accurate blast-hole drilling in underground mines.
Tunneling Projects: Reliable performance in civil engineering and infrastructure development.
Anchor Bolting: Efficient installation of rock bolts for ground reinforcement.
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