Tool-holding heads Pibomulti’s CEP-NG heads raise performance in turn-mill and machining centres

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Pibomulti expands its portfolio with the next-generation CEP-NG tool-holding heads, enabling precise milling and drilling at right angles while combining higher speeds, lower vibration and reduced weight to boost productivity, surface quality and machine-friendly performance across demanding multi-axis machining applications.

A new range of tool-holding heads designed to mill and drill components at right angles to the orientation of a machining centre spindle has been introduced by Swiss manufacturer Pibomulti. The next-generation CEP-NG heads can likewise be used in the B-axis spindle of a multi-tasking lathe, or in a live VDI turret station of a turn-mill centre.

Built with high-quality, hardened and ground bevel gears and Abec 9 angular contact bearings, CEP-NG heads are engineered to deliver reliability, performance, precision and longevity, even when tackling challenging applications in demanding sectors such as automotive, aerospace, medical, defence and energy.

Compared with previous models, the new generation of heads is capable of transmitting higher rotational speeds at a 1:1 ratio, leading to greater productivity due to raised metal removal rate when roughing, or finer surfaces when taking finishing cuts. The CEP-NG 17 model, for instance, which clamps the cutter in an ER25 collet, can reach a maximum speed of 5,000 rpm, optionally 6,000 rpm, and has a maximum torque of 50 Nm.

ER8 up to ER50 / ISO40 tool clamping is available, the latter being capable of deploying a 36 mm diameter tool and transmitting 210 Nm of torque. A further benefit of the head redesign is that vibration is lower, especially when tool overhang is long, further promoting good surface finish as well as extending tool life.

Pibomulti CEP-NG heads are also lighter in weight, reducing stress on the machine tool spindle bearings, as well as on the machine structure when the spindle head is accelerating or decelerating in the linear axes. The lightness similarly lessens the load on the magazine arm during ATC (automatic tool change) and allows quicker exchange.

Lower head weight equally promotes faster cutting feed rates and rapids due to a decrease in inertia, contributing further to elevated levels of production output by shortening overall cycle times. All these advantages are particularly beneficial, including in terms of lower maintenance costs, if the machine is small, less rigidly built or old.

The latest head series integrates several advanced options, including up to 100-bar coolant delivery through the head. A 360-degree indexing ring with graduations delivers flexibility for complex, multi-sided machining tasks by allowing the machine tool to automatically rotate and lock the cutting angle. Alternatively, the ring can be indexed manually into position.

Suitable for automated production cycles and unattended running, the feature avoids the expense of having to buy multiple special heads or wasting time manually repositioning a part. Additionally, the standard Pibomulti CEP-NG head range is customisable to meet specific customer needs. A range of interfaces is offered, including HSK, ISO, CAT, BT, Capto and VDI.

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