Large bridge-type machines for mould and die work
1 min read
A totally new series of 12, ultra-heavy duty, 3-axis bridge-type vertical machining centres, with a patented construction giving 50 per cent improved stability around the spindle head slideway, has been launched by C Dugard.
The Dugard Eagle SDV-H series has been developed for mould and die and large casting and fabrication machining with table sizes up to 5,000 by 2,700 m, table load up to 20 tonne, and travels up to 5,200, 2,900 and 760 mm in X, Y, and Z.
Central to the high metal removal capability is the patented construction of the Y-axis cross beam and Z-axis spindle slide arrangement that enables a spindle centre line to the heavy duty SRG 65 roller-type linear ways to be within 355 mm. An extra wide span between two linear ways on the Y-axis of 400 mm and four SRG 45 roller type linear ways on the vertical Z-axis add to the increased rigidity, stability and vibration-free heavy cutting and improved surface finish capability of the machines.
Machines can be tailored, with the option list starting at a choice of Heidenhain, Fanuc or Siemens control. There are further options of auxiliary table, NC rotary or indexing table, five choices of tool magazine sizes with up to 60 positions and a range of 45º or 90º angle, universal or extension heads. In addition, spindles up to 30 kW, linear scale positioning, through spindle coolant and thermal compensation software can be specified.
The structural components of the table, box columns and ladder-design of beam, that gives some 25 per cent improvement in rigidity than conventional parallel slideways, are produced from Meehanite cast iron with heavy rib reinforcement.
