Electric tapping arm
An electric tapping arm with high frequency is the indispensable peripheral component for European metalworking workshops looking to maximize the performance of their CNC machining centers.
In today’s B2B industrial production environment, utilizing a complex machining center for secondary tapping tasks represents an unacceptable opportunity cost that drastically reduces the OEE (Overall Equipment Effectiveness) indicator. By delegating these operations to an auxiliary weightless station from Roscamat, companies succeed in freeing up primary spindle time, suppressing bottlenecks, and completely eradicating costs derived from scrapping heavy components due to fractured taps.
WORLDWIDE TAPPING ARM LEADER
Standing out in the European Union and with exports and services at a global level such as the United States, Latin America and many other areas.
ROSCAMAT STANDS OUT BY:
Simplicity
Versatility
Zero setup time
Ease of transfer
Reliability
PERFECT MACHINERY FOR:
Moldmakers
Die Makers
Component manufacturers
Metalwork
Machine Shops
Constant motor torque and electronic control to eliminate tool breakage
The integration of permanent magnet synchronous servomotors in our articulated arms marks a definitive technological break from old pneumatic tools. While pneumatic systems suffer critical speed fluctuations due to pressure drops in the workshop’s compressed air network, Roscamat electrical systems guarantee a uniform torque and absolute dynamic rigidity, even at minimum RPM regimes.
This constancy in power delivery is the fundamental factor protecting the integrity of CNC machining tools when transitioning between ductile aluminum alloys and high-hardness or refractory materials such as stainless steel, duplex, or titanium.
The technical purchasing department can select the exact power module adapted to their factory’s product catalog. Our ranges segment the mechanical transmissions and planetary reducers based on operational needs: from lightweight systems optimized for high speed in M2 to M14 ranges, to robust industrial stations configured to withstand severe loads in pitches up to M30. This specialization of the driving head prevents premature wear from material fatigue and ensures millimetric repeatability over millions of work cycles.
Weightless kinematics and extreme flexibility with multi-position heads
The articulated parallelogram chassis defining every Roscamat structure is manufactured from high-strength aircraft-grade aluminum, precisely balanced by pressurized gas shock absorbers. This kinematic engineering cancels out the self-weight of the electric tapping machine, allowing the operator to guide the cutting head over volumetric parts with practically imperceptible physical resistance. Standard reach radii, which range between 1,200 mm and 1,800 mm, guarantee total coverage over extended workbenches, reducing to zero the need to manipulate or reposition base parts during the process.
For industries processing complex geometries with perforations on inclined planes or transverse tapping, Roscamat implements its VH-type multi-position articulated head. This system allows pivoting the motor plane ninety degrees or maintaining a free rotation in space, making it possible to alternate between vertical, horizontal, or angular tapping in a few seconds. By eliminating manual flipping processes of heavy matrices, risks of aesthetic damage to ground surfaces are suppressed, and ergonomics and occupational health regulations in the plant are safeguarded.
Our products
ELECTRIC MACHINES
Articulated tapping arms with high frequency electric motors specifically designed for tapping with capacities from M2 up to M36 in steel.
PNEUMATIC MACHINES
Articulated tapping arms with the most durable pneumatic motors with capacities from M2 up to M24 in steel.
ACCESSORIES
Find all the accessories available for tapping, drilling, reaming and countersinking as well as to adapt the tapping arms to your work station.
Programmable digital depth control for blind holes
Process automation demands electronic interfaces that suppress the margin for human error and streamline machinery setup. The latest generation of Roscamat arms incorporates a digital touchscreen acting as the control core of the system, allowing the operator to program the exact depth of penetration in the Z-axis with millimetric resolution. Upon reaching the established depth limit in blind holes, the integrated encoder commands an instantaneous and automated reverse rotation, withdrawing the tap cleanly without damaging the thread crests.
This digital technology also allows completely decoupling the forward speed from the reverse speed, accelerating the total production cycle without subjecting the tool tip to thermal stresses. The software supports the immediate configuration of metric and imperial pitches (SAE/UNC), facilitating total flexibility for auxiliary workshops working under the subcontracting model that must adapt daily to very diverse international design blueprints.
Quick-change mandrels with active safety clutch
The design of the Roscamat spindle prioritizes the suppression of downtime on the assembly line through quick-clamping systems compatible with high-precision standardized collets (Bilz type). This mechanism allows the operator to exchange countersinking bits, deburring tools, and taps of different metrics in a single two-second manual maneuver, eliminating the use of mechanical tightening wrenches common in generic systems.
The crucial competitive advantage lies in the adjustable safety clutches integrated individually into each tapping collet. If the tap encounters an unforeseen accumulation of compacted chips or if the prior hole diameter is smaller than nominal due to a worn drill bit in the CNC center, the clutch slips mechanically and instantaneously. By stopping the twisting torque before it exceeds the metal breakage limit, the cutting tool is saved, and the value of the machined part is actively protected.
Frequently Asked Questions
Why is a Roscamat electric tapping arm better than using the CNC machining center for tapping?
Utilizing a CNC machining center to perform tapping consumes useful time of a high-investment equipment on tasks that do not require its interpolation capability. A Roscamat tapping arm assumes these secondary tasks at an external station while the CNC continues roughing the next part, which multiplies the factory’s OEE, reduces the hourly cost, and prevents a broken tap from stopping the primary machine’s production.
How does the Roscamat system protect taps against breakage?
The protection is dual: electronic and mechanical. On one hand, the electric servomotor offers constant torque and digital depth control that stops and reverses rotation automatically in blind holes. On the other hand, the quick-change collets incorporate a calibrated safety clutch that slips instantly if the tool meets a resistance higher than permitted, stopping the force before the tap fractures.
What maintenance does an electric articulated arm require?
Unlike pneumatic systems that require constant line lubricators and suffer from moisture in the air, Roscamat electric arms require minimal maintenance. Their joints feature sealed self-lubricating bearings and the servomotors are brushless, reducing technical interventions to preventive cleaning and routine checks of the gas shock absorbers.
What type of power supply does the machine need in the workshop?
Depending on the selected model, the Roscamat range adapts to standard plant infrastructure. Light and medium models operate connected to standard 220V single-phase networks, while high-frequency equipment for heavy operations (M30) integrates internal electronic variators that manage power efficiently, demanding energy only during the seconds of the active cutting cycle.