Mecof Powermill HPC3: Revolutionizing Large-Scale Machining

Gantry milling machine Powermill HPC3: redefining standards in large-scale machining

2025-12-19 Source: Emco Mecof 2 min Reading Time

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Mecof is setting new benchmarks in large-scale machining with the Powermill HPC3 gantry milling machine. The portal machine combines extreme rigidity, long-axis travel and flexible, automatically interchangeable milling heads with advanced digital control.

The Powermill HPC3 offers exceptional working capacity.(Source: Emco) — The Powermill HPC3 offers exceptional working capacity.
(Source: Emco)

Among the high gantry milling machines manufactured by Mecof for large dimensions, the Powermill HPC3, built for a Chinese customer, stands out as a solution that combines power, precision and operational flexibility. It is a portal milling machine designed to meet the most complex needs of the electrical cable manufacturing industry, but with features that also make it ideal for other high-production applications.

With axis strokes of 12 metres in X, 4 metres in Y and 2.5 metres in Z, the Powermill HPC3 offers exceptional working capacity. Its portal architecture combined with the box-in-box design ensures rigidity and thermal stability even in the most demanding machining operations, while the latest generation Siemens Sinumerik ONE numerical control guarantees optimal cycle management and digital integration of production processes.

As with other models on display at the Mecof 2025 Open Days, one of the strengths of this machine is its ability to manage different interchangeable heads, all designed for automatic changeover.

The universal bi-rotary head with automatic millesimal positioning offers power (38 kW), torque (1000Nm) and speed (6000 rpm) ideal for complex machining operations, while the more compact vertical spindle head meets the need for precision and versatility. Its dimensions are Ø min. 185 mm, total L 765mm. It offers 15 kW of power, 390 Nm of torque and a speed of 3000 rpm. Both heads have an ISO 50 connection.

The machine is equipped with automatic parking cradles for the heads, anti-rotation devices, and an Alberti head with ISO 40 connection, internal cooling and 1:1 direct transmission, designed for light machining.

Tool change and measuring systems

Productivity is ensured by a 64-position tool magazine (2 chains of 32 positions), integrated into the shoulder of the machine, with independent chains to maximise changeover speed. There is also a complete measurement and control system, which includes a Renishaw radio probe, kinematic measurement, and tools for checking tool length and diameter.

Intensive milling requires effective cooling. For this reason, the Powermill HPC3 destined for China is equipped with a dual cooling system, both external and internal to the spindle (up to 40 bar), 2000-litre collection and filtering tanks, and flow control devices. This solution ensures thermal stability, long tool life and consistent quality of machined parts.

Another detail that should not be overlooked is the possibility for the operator to have safety and freedom of movement during the set-up and control phases. This is possible thanks to the Siemens HBG 800- DP wireless keypad.

Mecof’s Powermill HPC3 is not simply a gantry milling machine: it is a complete, ‘giant’ work platform that combines the solidity of traditional mechanics with the intelligence of the most advanced automation.

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Date: 08.12.2025

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