Boring mills are crucial for machine shops that rely on them to create new parts or repair machinery. They are used for a wide variety of industries, including the energy and oil-and-gas sectors.

Most boring mills have spindles that extend from the headstock to give them more reach. This helps reduce tool deflection, which could lead to a missed tolerance or misplaced cut.

Table-Type Boring Mills

Designed to handle large, complex welded frames and longer weldments, these machines are engineered with a moving column for the Z axis and a table that moves along the X axis. This allows for full support of the X axis without any overhang, giving the machine maximum rigidity and accuracy.

These boring mills can perform turning, grooving, facing, jig boring, line boring, and tapering on workpieces with internal and external threads. They are also capable of machining turbine casing, ring gear blanks, and flanges for large pipes.

Surplusrecord is proud to offer a selection of high-quality CNC horizontal boring mills. These specialized machines are ideal for manufacturing industrial parts and can be used to enlarge holes that regular lathes or mills cannot handle. In addition, boring mills can help improve part quality by smoothing out the interior surfaces of holes. Because of this, they’re an excellent investment that ends up paying for itself in the long run.

Planer Boring Mills

The working principle and nature of a planer boring machine are very similar to that of a milling machine. The rotation of the tool is the main motion, and the intermittent feed motion of the workpiece is the secondary movement. Due to the high rigidity of the cutter head and boring bar, the straightness, cylindricity, and position of the machined hole are very good. This type of machine is suitable for processing long through holes, large-diameter stepped holes and holes in different positions on large box parts.

The programmable boring bars and contouring heads on these machines provide machining versatility, so you can eliminate the need for multiple attachments. They also allow you to reduce part machining cycle times by automating the attachment changing process. These heavy-duty Giddings & Lewis machines are available in planer, table and floor types, so you can choose the one that best meets your needs. The one-piece, cast iron bed provides exceptional rigidity, making them a reliable choice for critical, highly accurate machining applications.

Horizontal Boring Mills

Horizontal boring mills are the most versatile type of boring mills for sale because they don’t have a limitation in workpiece size. These machines can be used to drill, face, mill and bore holes into larger parts such as large castings or welded components.

They can also be used to further process cast, forged or drilled holes in a part by enlarging them, improving their dimensional accuracy or increasing the diameter of the hole’s center deviation. Additionally, a horizontal boring mill can rework holes by removing metal and refinishing the surface of the workpiece. They’re built with a strong, ribbed Meehanite cast iron design and hardened and ground bed slide ways for long-lasting durability. These features allow operators to make more cuts, saving time and money in the manufacturing process.