Maximum cutting performance thanks to optimum rigidity and dynamic
The inherently rigid structure of the proven gantry machine concept with vertically traversable crossbeam and hydraulic weight compensation has been further enhanced. To this end, the basic machine is made entirely of high-quality castings (GGG60). The newly designed B-axis milling head with a swivel range which has been extended from 210° to 250° with the option of swivelling by 70° in the negative direction and the larger B-axis bearing result in a milling head housing with 15% higher rigidity which is more application-oriented. The extended swivel range and improved interference contour with greater reach together with the cable drag chain incorporated into the housing open up even more possible applications. Increased interest in the DECKEL MAHO gantry machine concept is therefore noticeable in various sectors which focus on the likes of tool making, mould making and mechanical engineering, the aerospace industry, energy management and medical engineering.
The newly developed B-axis works in conjunction with a likewise more rigid and more accurately positioning NC rotary table. With a larger bearing and improved clamping, this provides a holding torque of 57,000 Nm and is driven at an increased maximum speed of up to 14 rpm by means of two new compact gearboxes which are electrically braced. As well as the higher B-axis swivel speed and the enhanced NC table, the new DMCU 270 U offers high dynamics and therefore also sets standards in its class.
The new powerMASTER 1000 motorized spindle with 9,000 rpm, a maximum of 77 kW and 1,000 Nm torque guarantees effective heavy-duty chip removal. In addition to the standard SK 50 / HSK-A 100 motor spindle with 12,000 rpm, 44 kW and 288 Nm torque, five further motor spindles are available as an option – including a moulding spindle with 15,000 rpm with 52 kW at 404 Nm or the 35 kW motor spindle with HSK 63 fixture and a maximum of 18,000 rpm for high speed cutting. The larger-than-average range of main drives is supplemented by the offer of the HSK-A100 geared spindles with 1,550 Nm at 6,300 rpm and 44 kW. As an alternative to the B-axis arrangement, the range of gantry machine modules includes an A-axis milling head housing with swivel axis parallel to the X-axis which accommodates the appropriate motor spindles.