Compact gantry machining centre offers milling head options
The new Fidia D321 compact, gantry-type, high-speed machining centre offers a choice of proprietary Fidia milling head, continuous or bi-indexed, to suit specific mould finishing applications.
Available in the UK and Ireland from official importer, sales distributor and sales agent, TDT Technology, the fast and precise Fidia D321 matches a large working envelope of 3000 x 2200 x 1100mm in the X, Y and Z axes, with a notable compact footprint of just 6000 x 6000mm. In addition, the wide-opening front door is ideal for loading large and heavy workpieces, while offering unsurpassed visibility.
Configured as an ‘upper gantry’ type machine with a moving cross beam, this design is proven to be the most qualified for stiffness and dynamic accuracy. A 3000 x 2000mm cast iron, T-slot table is an independent part, fastened to the floor, and can accommodate loads up to 20 tonne capacity.
Fidia’s M5B/22 bi-rotary indexing head is equipped with a 22kW, 30,000 rpm HSK50E spindle that is ideal for the semi-finishing and finishing of plastic injection moulds as it combines an extreme compactness with high rigidity. Moreover, the use of a Hirth coupling with 3° step/pitch on the B-C axis allows for high precision even when using long tools to produce difficult-to-reach mould features. B-axis travel extends from +24 to -102°, with C-axis travel from +180 to -177°.
The alternative is Fidia’s M5C/35 milling head with 35kW, 20,000 rpm HSK63A grease-lubricated spindle. This fork-type head with continuous, high dynamics is tough and adaptable to a wide range of materials, including steel, aluminium, foams and composites. High-resolution direct encoders on the A-C axis grant accuracy even for the most delicate and demanding operations. The Fidia NC control allows continuous five-axis interpolation and compensates the tool centre position according to the spindle inclination. A-axis travel extends from +95 to -110°, with ±200° in the C axis.
Fidia’s D321 offers 24 m/min axis speeds and 3 m/s² acceleration in the linear axes, along with a 2o- or 42-station automatic tool-changer. Tool lubrication and cooling takes place through an air-oil system using a minimum quantity of non-toxic vegetable oil. Air blow from the outside of the spindle can also be deployed. Grease lubrication is applied automatically to the recirculating ballscrews, guides and slideways.
Among the many options available are tool life management software, probing, automatic laser tool pre-setting, chip conveyors and various environmental accessories such as mist collectors and dust extraction devices.