Vertical Drill/Tap Machines

Vertical CNC Drill/Tap Machines

Absolute Machine Tools is the ultimate destination for vertical CNC drilling and tapping machines that will revolutionize your drilling and tapping operations. If you’re seeking enhanced productivity and efficiency, our vertical CNC drill/tap machines are the ideal solution. With their versatility and capabilities, these machines can handle a wide range of applications, including complex drilling and tapping jobs.

At Absolute Machine Tools, we proudly offer vertical CNC drill/tap centers from renowned and trusted manufacturers in the industry. Our extensive selection ensures that you’ll find the perfect machine to meet your specific needs. Whether you require precision, speed, or advanced features, our team of experts is here to assist you in finding the right machine for your requirements.

Experience the benefits of increased productivity and efficiency in your drill/tap operations with our vertical CNC drilling and tapping machines. Harness the versatility and power of these machines to handle diverse applications, while achieving precision and quality results. Our team is dedicated to providing exceptional customer service, and we are ready to address any questions or concerns you may have.

Upgrade your drilling and tapping capabilities today with Absolute Machine Tools’ vertical CNC drill/tap machines. Explore our range of machines and take your operations to new heights. Contact us now to discover how our cutting-edge solutions can optimize your productivity and drive success.

Machines

Seiki Kt Series

Seiki KT Series

30-Taper High Speed Milling & Tapping Centers

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Seiki Pt400S

Seiki PT Series

Ultra Speed Milling & Tapping Center

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Seiki Ut600L

Seiki UT Series

Ultra Speed Milling & Tapping Center

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Embracing Automation

Our A+ Automation team offers simple and affordable solutions for CNC machine automation

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Experience the Absolute Advantage

Versatile & Powerful Vertical Drill/Tap Centers

Absolute Machine Tools offers a diverse selection of vertical drill/tap centers from trusted manufacturers. These machines combine drilling, tapping, and milling capabilities into a single platform, offering versatility and flexibility for your machining needs. Whether you’re working with small parts or large components, our drill tap centers deliver the power and precision required for optimal results.

Unmatched Precision & Speed

Achieve superior accuracy and efficiency with our drill/tap centers. Equipped with advanced CNC technology and high-speed spindles, these machines deliver exceptional precision and rapid cycle times. Experience reduced setup times and increased throughput, allowing you to meet tight deadlines and exceed customer expectations.

Customizable Solutions

At Absolute Machine Tools, we understand that every machining requirement is unique. That’s why our machines can be tailored to your specific needs. With customizable features, tooling options, and automation capabilities, we can help you find the perfect machine configuration to optimize your production processes.

Expert Guidance & Support

Our team of experts is dedicated to providing exceptional customer support. We are here to guide you through the process of selecting the right CNC machine for your application. From initial consultation to installation and training, we ensure a seamless experience, allowing you to maximize the benefits of our machines.

Enhance Your Drilling & Tapping Capabilities

Elevate your drilling and tapping operations with Absolute Machine Tools’ vertical mill/drill/tap centers. Experience the advantages of increased productivity, precision, and versatility. Browse our extensive range of machines to find the perfect solution for your manufacturing needs. Contact us today to discover how our cutting-edge technology can transform your production processes and drive your success.

What Types of Parts and Industries Get the Most Value from CNC Drill/Tap Centers?

The highest-return applications are parts with a dense hole pattern relative to their overall size — automotive transmission valve bodies and hydraulic manifolds, MIM (metal injection molded) near-net-shape components, aluminum structural brackets for aerospace ground support equipment, medical instrument plates, and electrical connector bodies where M2 through M10 threaded features dominate the program. 

Tapping centers also serve as purpose-built secondary operations stations in shops that run primary contouring on vertical machining centers: offloading all drilling and tapping to a dedicated machine frees the VMC spindle for the complex work only it can do, which effectively raises the capacity of the entire cell without adding a second full-featured machining center. 

Seiki High Production Mill/Drill/Tap Centers

Seiki vertical mill/drill/tap centers are the fastest CNC milling and tapping centers in their class. These machines will exceed the demands of any manufacturer with high volume, high precision machining needs. The accuracy and quality achieved with Seiki’s machining centers along with the compact footprint and competitive price make this mill a valuable addition for shops producing a wide variety of components. These mills can be utilized for both complete parts and secondary operations, and they are designed to offer seamless integration, streamlining your workflow and enhancing productivity. The intricate milling abilities that Seiki machining centers provide make these mills great for final machining of metal injection molding (MIM) parts.  With sturdy construction and cutting-edge features, Seiki’s drill tap centers deliver superior performance and ensure consistent, accurate results.

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What Does BBT-30 Mean, and Why Do Seiki Tapping Centers Use It Instead of a Standard BT-30?

BBT-30 refers to the Big Plus dual-contact 30-taper interface, an enhancement to the standard BT-30 taper where the tool holder makes simultaneous contact against both the spindle taper and the spindle nose face. 

On a conventional BT-30 holder, only the tapered bore contacts the spindle; as the drawbar clamps the holder, it pulls it fractionally deeper into the bore — a phenomenon called “pull-in” — which shifts the tool’s Z-axis position by a small but non-negligible amount. BBT-30’s face contact acts as a physical stop that prevents this movement, so the tool position at the start of each cycle is the same as the previous one, regardless of how many thousand tool changes occurred in between. 

For a tapping center sustaining 1.07-second chip-to-chip tool changes across a full production shift, that repeatability protection is the reason Seiki specifies BBT-30 as standard rather than the less expensive plain BT-30 — the dual contact interface also increases overall milling rigidity, giving the 30-taper machine meaningful material removal capability without compromising its primary drilling and tapping role.

Frequently Asked Questions About Vertical CNC Drill/Tap Centers

A CNC drill/tap center is a 3-axis vertical machine purpose-built around the economics of hole-making — drilling, counterboring, reaming, and rigid tapping at the highest achievable throughput in the smallest floor footprint. 

The architectural difference from a full vertical machining center lies in where the design tradeoffs were made: tapping centers maximize spindle acceleration and tool change speed at the expense of heavy-cut milling rigidity. A full VMC can run larger spindles such as HSK-100A and 50 Taper geared-head spindles for sustained material removal in difficult alloys; a tapping center runs a 30-taper BBT-30 spindle engineered for rapid oscillation — spinning up, reversing, and returning to speed hundreds of times per shift without heat buildup or bearing fatigue. 

For shops producing prismatic parts where hole-making dominates cycle time, that specialization translates into measurably lower cost per part than running the same work on a general-purpose machining center.

Rigid tapping is a synchronized threading cycle in which the CNC controller couples spindle orientation to Z-axis feed in real time, matching the tap’s thread pitch throughout the full cycle — including deceleration, direction reversal, and retraction. This eliminates the need for a spring-loaded “float” tap holder that mechanically compensates for timing errors: in a rigid tap cycle, the program controls everything, which means blind holes are threaded to consistent depth every time, taps run at higher RPM without the micro-shocks that cause premature breakage, and thread form quality is repeatable across an entire production run. 

On Seiki PT and UT Series machines, rigid tapping is supported up to 6,000 RPM on the standard BBT-30 direct drive spindle — a meaningful spec distinction, since rigid tapping RPM limits become the throughput bottleneck on lower-capability machines when running M3–M6 features in aluminum.

The tipping point is typically when drilling and tapping operations represent 50–60% or more of your cycle time on a part — at that ratio, a dedicated drill/tap center will almost always produce a lower cost-per-part than a general-purpose machining center, even factoring in the capital outlay. 

The arithmetic is simple: the PT-400S achieves a 1.4-second tool-to-tool change time compared to the 4–6+ seconds typical of a full 40-taper VMC, and that delta compounds across every hole, every cycle, every shift. 

If your downstream queue requires heavy milling — deep 3D profiling, large-diameter boring, or multi-face access — you still need a full horizontal machining center or VMC for that work; tapping centers are not substitutes for broad machining capability. 

The right framing is: how much of your current VMC spindle time is spent on holes that a dedicated, faster, less expensive machine could handle?

The Seiki PT and UT Series machines are genuine 3-axis machining centers capable of face milling, profile contouring, shallow pocket milling, reaming, boring, and thread milling — not just drilling and tapping.

The practical milling ceiling on both platforms is shaped by the spindle’s 5 HP continuous rating and BBT-30 dual-contact taper. That combination handles aluminum and moderate-hardness steels comfortably in light-to-medium cuts, but isn’t suited for the sustained chip loads involved in deep pocketing hardened steel or large-diameter inserted face mill work. The UT Series’ optional 12,000 RPM high-torque spindle meaningfully extends the steel milling envelope, and many shops use a UT Series machine as the primary milling platform for the secondary side of a cell. For applications where heavier fixturing or higher part weights are a factor, the UT Series also offers a structural advantage — the UT-360D, for example, supports 550 lbs. per pallet versus 330 lbs. on the PT-400S.

One convergence point worth noting: shops running small turned components on CNC Swiss lathes often route parts to a drill/tap center for milled features and cross-hole threading that the Swiss can also handle — but at a higher cost-per-feature when volumes are high enough to justify a dedicated machine.

Absolute carries exclusively Seiki for drill/tap centers — a Taiwanese manufacturer with a tapping center focus dating to 1991. 

The current lineup spans three series: the KT Series (30-taper, BBT-30, up to 15,000 RPM, with optional pallet changer), the PT Series (ultra-speed single-table configuration), and the UT Series (ultra-speed larger format for higher workloads).

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