55SiMnMo Hexagonal Drill Rod with HRC32-35 and HRC49-57 Hardness for Mining and Construction

55SiMnMo Tapered drill rod features high-quality material with uniform steel structure, mechanical stability, and precise dimensional accuracy. Heat treatment achieves HRC32-35 hardness during normalizing and HRC49-57 hardness for the rod adapter during quenching and tempering.

Through strict material control and production processes, these drill rods deliver superior performance with reduced failure rates and extended drilling life.

Hex tapered hollow drill rods are compatible with jack hammer rock drills including YT24, YT27, YT28, YT29A, and S82 models.

• Manufactured from high-strength steel alloys for exceptional durability and wear resistance
• 55SiMnMo special steel offers excellent mechanical properties and impact resistance
• Enhanced resistance to drilling friction extends service life and improves efficiency

Our tapered drill rods are ideal for mining operations and infrastructure construction requiring small aperture blasting holes. The superior mechanical properties ensure long service life while maintaining the strength and reliability needed for continuous drilling operations.

Products are packed in cartons or wooden boxes. Samples ship via Fedex (7-10 days delivery), while bulk orders are shipped by sea.

Hebei Minetech Machinery Technology Co., Ltd. is a joint venture enterprise with European partners, located in Shijiazhuang City, Hebei Province, China. Specializing in mining machinery manufacturing, we produce hydraulic/pneumatic drill machines, roof bolters, and drilling consumables including drill bits and rods.

With over a decade of experience and a professional engineering team, we provide complete mining machinery solutions. Our products are exported to 30+ countries including Southeast Asia, USA, Europe, and South America, establishing a strong international reputation.