Suitable for blast furnaces from 3200 to 5500 cubic meters.The tap hole stands as one of the most highly stressed areas within a blast furnace—any issues here can lead to prolonged downtime, which is why protecting this critical zone through precise, gentle drilling and proper plugging is paramount.

Our drilling technology spans the full spectrum of performance requirements. Equipped with high drilling torque, plus an optional hammer featuring adjustable frequency and impact force, it guarantees the tap hole is drilled with the utmost gentleness. Naturally, operation can be fully automated or manual, offering flexibility to suit diverse needs.

In instances where significant force is required to extract a stuck drill rod from the tap hole, we provide true full-reverse drill hammers. This design prevents rod jamming during retraction, thereby eliminating the risk of machine damage right from the start.

Thanks to their modular design and comprehensive coverage of drilling performance ranges, Hong Yuan tap hole drilling machines are deployed in blast furnaces worldwide—from the smallest to the largest, highest-output facilities—proven to deliver reliable performance across all scales.

Compared with the traditional pneumatic iron opening machine, hydraulic iron opening machine shows significant advantages. First, the power performance is more powerful. The hydraulic system can provide up to tens of megapascals of working pressure, so that the drill bit in the face of the hard slag layer at the mouth of the slag layer and the iron shell, but still can maintain a stable drilling ability, greatly reducing the time to open the mouth of the iron. Secondly, the operation precision is higher. Through the hydraulic proportional valve and electronic control system, it can realize the stepless adjustment of drill feed and impact force, which can not only avoid the breakage of iron mouth due to excessive strength, but also prevent the clogging of iron mouth caused by insufficient drilling. Thirdly, the equipment life and maintenance convenience are outstanding. The hydraulic components adopt airtight structure, which reduces the erosion of dust and high temperature on the core components; the key parts, such as drill bits and drill pipes, are made of high-strength wear-resistant materials, which, together with the hydraulic cushioning device, effectively reduces the loss caused by mechanical impact. In addition, the modular design makes troubleshooting and component replacement more convenient, and the maintenance cycle is more than 30% longer than that of traditional equipment. In practical application, the hydraulic iron opening machine needs to be customized according to the blast furnace volume, iron mouth depth and other parameters. For example, for large-sized blast furnaces (volume of 5000 cubic meters or more), it is usually equipped with a high-power hydraulic system (working pressure of 25-31.5MPa, flow rate of 100-150L/min) and alloy drills with a diameter of 100-150mm to meet the needs of drilling a deep iron mouth (3-5 meters), while small and medium-sized blast furnaces can choose a compact device to ensure efficiency and save space at the same time. The small and medium-sized blast furnaces can use the compact equipment, which can save space while ensuring the efficiency.

Hongyuan Hydraulics, as a professional manufacturer of Blast Furnace Drilling Machine in China, supports customized hydraulic blast furnace drilling machine of various types and models, welcome new and old customers to inquire!