How to specify a beam drilling line

The line is sized by the largest beam or profile it will process: the beam height, the flange width and the length. H, I, U profiles and angles define, by their maximum size, the scale of the machine and of the roller conveyor that feeds the part. Defining the real maximum working profile is the starting point, just as with any equipment in the line.

The number of spindles defines how much the line produces. One spindle drills one face at a time; three spindles work the three faces of the profile simultaneously, multiplying productivity on parts with holes in the web and flanges. The choice depends on volume and shop type: one spindle is enough for medium production, three spindles are for high production. Which one suits is developed in the corresponding FAQ.

A modern line does not only drill. Many add marking —identification and reference lines for assembly—, milling and countersinking, resolving in a single pass operations that used to be separate. Defining which operations are needed beyond drilling avoids buying a machine that falls short or paying for functions that will not be used.

On a CNC line, the control positions the beam and executes the hole pattern automatically. Automatic part measurement and tool change define the real production rate as much as the spindle: drilling fast is useless if positioning the beam is slow. For continuous production, automating part handling is as decisive as the number of spindles.

Drilling can be integrated in line with a cutting saw. Together they form the structural steel preparation line: the part is cut to length and drilled in a continuous flow, with no intermediate handling. If the shop already cuts profiles, integrating drilling orders the flow; how that saw is specified is developed in its own article.

Specifying a beam drilling line means describing well the largest profile you will process, the production volume and the operations you need. With that defined, the one-or-three-spindle decision and the level of automation fall into place, and you avoid both over-sizing and falling short. As the representative of AKYAPAK drilling lines, CYM Materiales supports that definition so the equipment matches the real work.