• Beam
  • Drilling
  • Plate
  • Fabrication
  • Manufacturing
  • Automation

CNC drilling, thread-tapping and countersinking explained

Drilling creates high quality holes in thick material

Compared to thermal cutting and punching, drilling has the main advantage that it results in holes with a higher quality capable in greater thickness materials. You get a completely cylindrical hole, smooth surface inside the hole and no thermal or mechanical tensions on the surface of the hole. Furthermore, drilling allows you to process a diverse range of material thicknesses and hole diameters.

Thread-tapping and countersinking after a drilled hole

Processes which can be performed after a drilled hole has been created are thread-tapping and countersinking. Thread tapping creates a tapping inside the drilled hole to be able to eventually create a bolted connection, resulting in a more durable and stronger connection compared to welding connections. Just like thread-tapping, countersinking takes a drilled hole as the starting point. Countersinking removes the sharp edge of a drilled hole, creates a bevel on a drilled hole and a recess (deep bevel) for a blind bolt head. These purposes of countersinking prevent you from any problems when painting your material afterwards.

Why partner with Voortman?

All Voortman drilling machines for profiles, flat and angles and plates are equipped with the CAT50 / VD50 or VD40 drilling unit. These drilling units are suitable for HSS drills, carbide tipped drills, thread-tapping, countersinking and marking by milling. Especially for drilling processes, carbide drills offer more advantages than for example HSS drills, because of the high drilling speed, long lifetime of carbide tips and the perfect hole quality. Furthermore, more holes can be created with carbide drilling and less tool changes are needed, resulting in a higher output and less machine downtime. All Voortman drilling machines will provide you with the best possible, stable, predictable and high-quality results in drilling, thread-tapping and countersinking. The drilling machines perform automatic tool changing and automatic tool measuring which eliminates manual intervention of your operator.

Finally, beam drilling machines like the V613, V630 and V631 are often combined with a VB beam sawing machine creating an integrated automated combined drilling / sawing back-to-back system. If more output is required, these drilling machines are often integrated in an entire fully automated machine line with multiple machines communicating with each other, also referred to as Multi System Integration™.

Beam drilling

Drill saw line back-to-back Most advanced drill-saw lines for increased productivity and efficiency

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Voortman V600 The entry level small single spindle drill for the medium fabricator

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Voortman V613 Single axis beam drilling

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Voortman V631 Fast drilling and heavy duty milling without concession

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Plate drilling

Voortman V310 The ultimate, most complete cutting and drilling flexible plate processing machine

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Voortman V325 Pass-through plate processing with automated unloading for small part production

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Hear it from
our customers

Novopolotsk Technological steel structures plant - ШУРПАКОВ ИГОРЬ ГЕННАДЬЕВИЧ - Belarus

"This system helps us improve production quality and has a serious influence on assembly at the end. Thanks to the automated production with Voortman equipment we can be more competitive at pricing in our market.”
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Egger Pumps - Gregory Dind - Switzerland

“Now with the Voortman machine, all processes are performed with the same machine. We have reduced production times on the milling machines, a better cut quality and less work cleaning the parts for internal post processing.”
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SCW Contracting Corp - Andy & Steve Scrape - United States

"These two pieces of equipment work seamlessly together. They produce at incredible rates. To have one without the other just wouldn't really make sense."
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Leach Structural Steelwork Ltd. - Eric Leach - United Kingdom

"The new system has allowed us to make more use of our existing labour and deploy our existing staff over more shifts and more machines, which under certain circumstances can give us a 50 and a 100 percent increase in capacity."
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Bect SAS - Fabrice Bect - France

“The main advantage compared to our previous workshop layout is that we have grown productivity by 25%. We have found machines made for steel fabricators to be productive and reliable.”
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Cermont Sp. z.o.o. - Damian Cieślik - Poland

“In the past the fitters were waiting for the prepared material to be able to tack weld. At this point the situation has reversed. The production is so efficient and fast that finished processed material is now waiting for assembling.”
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HME Inc. - Jon Haas - United States

“Voortman equipment definitely has much more intelligence than competitive machines. It is amazing how the software controls everything. Once a part enters the system you can forget about it, until it comes of the outfeed transfers.”
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J&D Pierce Contracts LTD. - Derek Pierce - United Kingdom

The system is a large system and it has a tremendous amount of automation and it all worked almost perfectly the first time. The completed installation has exceeded my expectations.
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