Among the gantry mills manufactured by Mecof for large components, the Powermill HPC3, built for a Chinese customer, combines power, precision and operational flexibility. This portal milling machine is designed to meet the complex needs of the electrical cable manufacturing industry, but with features that also make it suitable for other high-production applications.

With axis strokes of 12 m in X, 4 m in Y and 2.5 m in Z, the portal architecture of the Powermill HPC3, combined with its box-in-box design, ensures rigidityand thermal stability.The latest-generation Siemens Sinumerik ONE numerical control guarantees optimal cycle management and the digital integration of production processes.

One of the machine’s strengths is its ability to manage different interchangeable heads, all designed for automatic changeover.The universal bi-rotary head with automatic millesimal positioning offers ample power (38 kW), torque (1000Nm) and speed (6000 rpm) for complex machining operations, while the more compact vertical spindle head meets the need for precision and versatility. The latter offers 15 kW of power, 390 Nm of torque and a speed of 3000 rpm.Both heads feature an ISO 50 connection.

Productivity arrives courtesy of a 64-position tool magazine (two chains of 32 positions), integrated into the shoulder of the machine, with independent chains to maximise changeover speed. The machine also features 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.

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