German machining-centre manufacturer Burkhardt + Weber (B+W) has launched its new MCC 800 horizontal-spindle machining centre to sit alongside the smaller MCC 630 that was introduced in 2017.
Both are available in the UK, Ireland and the Middle East through Gosport-based Kingsbury (www.kingsburyuk.com
). B+W has incorporated the robustness and power of its heavy-duty MCX range into the compact MCC models.
In the case of the latest 800mm (optionally 1,000mm) pallet machine, it has created a rigid and powerful machine for producing prismatic components weighing up to 2.5 tonnes (including the fixture).
The four-axis machine (with C-axis rotary table) has twin pallets, a 1,400 x 1,200 x 1,400 (or 1,600mm) work envelope and a ‘footprint’ of 8.8 x 3.5 x 3.8m. The MCC 800 can deliver 1,300Nm of torque continuously, if a 41kW gear-driven spindle is chosen instead of a 30kW/300Nm motor spindle.
There is a further alternative of a +45/-110deg tilting spindle of identical power, which adds a fifth CNC axis.
The top spindle speed is 6,000rev/min(optionally 10,000rev/min), and an ISO 50 tool interface can be specified instead of the standard HSK-A100.
The tool changer serves a tool magazine with 64 pockets, which can be expanded to 320 on request.
Large-diameter table and spindle bearings, widely spaced size-65 linear roller guideways and twin-ballscrew drives in the Y axis contribute to the machine’s stiffness, as does the generously ribbed FEA-optimised cast-iron structure.
Component accuracy is maintained even when taking heavy cuts in steel or titanium.
High productivity is promoted by a cutting feed force of 17.5kN and 7m/sec2
acceleration to 60m/min rapids in the linear axes, which are fitted with linear scales for feeding positional data back to the Siemens Sinumerik 840D sl control.
The single-piece bed casting allows rapid installation and commissioning, either as a stand-alone machine or as part of a line.
B+W integrates a high level of Industry 4.0 monitoring and networking capability into its machines, offering comprehensive data acquisition and communication for efficient production, process safety and timely maintenance.