Not every tapping job sits neatly in front of the machine — flanges, castings, and large fabricated parts often need the tap to approach from an angle or handle a much bigger thread size than standard tapping setups allow. A flexible arm tapping machine is built for exactly this. AXIOS Machines’ SQ Series uses a heavy casting and fabricated box structure specifically designed to absorb high torque, with capacity up to M48x5mm pitch — a size range most standard tapping arms simply can’t handle. Running on a Mitsubishi controller with a 1100mm working radius, it works as a genuine arm tapping machine for shops dealing with large-diameter threads on heavy components. AXIOS is recognised among trusted flexible arm tapping machine manufacturers in India for building this kind of high-capacity flexibility into a single reliable machine.
When your work involves big fasteners — M40 or M48 threads on heavy flanges, machinery bases, or structural connections — a standard tapping arm often can’t generate enough torque without stalling or damaging the tap. As a proper flexible arm CNC electric tapping machine, the SQ Series’s heavy casting frame is specifically built to handle this load without compromising accuracy, running on the same Mitsubishi-powered electric control system used across the AXIOS range. AXIOS Machines currently supplies this series to customers across India as well as several international markets, and every unit goes through pre-dispatch testing to confirm it holds torque and depth accuracy under real working conditions. When comparing flexible arm tapping machine suppliers in India, ask specifically about maximum thread capacity, since not every flexible arm machine on the market is actually built for M40-M48 sizes.
A flexible arm tapping machine is a servo-controlled tapping unit mounted on a swivelling arm that can be positioned over different locations on a workpiece without moving the job. The arm rotates freely, the operator positions it over the hole, and the machine automatically taps the thread at the programmed depth and pitch — then reverses out cleanly. It handles both forward tapping and reverse extraction in one cycle, which is what keeps cycle times low.
Its heavy casting and fabricated box structure is specifically built to absorb the high torque needed for large threads, which standard tapping arms aren’t designed to handle without losing accuracy or stalling.
No, but this particular AXIOS series is positioned for high-torque, large-diameter tapping work, making it especially useful for shops that regularly handle M40-M48 fasteners on heavy components.
The tapping arm radius is the distance from the machine’s pivot column to the spindle — it determines how far the arm can reach across a workpiece or work area. AXIOS machines offer arm radii of 1100mm. A longer arm radius means the machine can tap holes spread across a larger workpiece or reach across a bigger work table without repositioning the machine itself — which matters a lot on large fabricated components.
AXIOS flexible arm tapping machines use Mitsubishi Japan-make controllers across the range. Mitsubishi controllers are chosen for their reliability, precise servo control, and long service life in production environments. The controller manages the forward tapping speed, the thread depth, and the reverse extraction speed independently — which is what allows the machine to achieve high RPM on smaller threads and controlled torque on larger pitch threads without tap breakage.
Flexible arm tapping machines are used across general engineering, heavy fabrication, pump and valve manufacturing, automotive component production, hydraulic cylinder manufacturing, flange and fitting production, and any industry that taps a significant volume of threaded holes regularly. They are particularly useful where the job size or weight makes it impractical to move the workpiece to a drilling and tapping machine — the arm comes to the job rather than the other way around.
Based on the AXIOS range, flexible arm tapping machines start from around ₹1,50,000 for the compact models and go up to ₹4,00,000 for heavy-duty models. The price depends on the thread size capacity, arm radius, series, and controller specification.
Routine maintenance on a flexible arm tapping machine covers lubrication of the arm pivot bearings, checking the collet and chuck condition, verifying the servo controller parameters periodically, and inspecting the arm counterbalance mechanism. The Mitsubishi controller used across the AXIOS range has a long service life and does not need frequent attention beyond keeping the software parameters backed up. Tap breakage — which is the most common operational issue — is usually a setup or feed rate problem rather than a machine fault.