Millutensil Spotting presses are ideal for adjusting die casting moulds
Italy – Millutensil has recently manufactured a die and mould spotting press featuring 4.000 mm x 3.000 mm plates, and a clamping force of 500 t.
This machine was made for Skoda Auto in the Czech Republic and is an example of the increasing importance of spotting and adjusting dies and moulds before they go into full production in the automotive industry, Millutensil says.
The Italy-based company offers two series of die and mould spotting presses: the MIL/Classic series and the MIL/Compact series. The latter is different from the former for the extensible plate extension on the side, having a greater distance between columns. According to the company, this solution is particularly interesting in the sector of die casting moulds, which – although they have a smaller centre body - are often equipped with internal slides that are driven by very large auxiliary cylinders that considerably increase the overall dimensions. The MIL/Compact series, therefore, guarantees – for the same plate size - a bigger distance between columns, thus avoiding the need for the operator to disassemble the auxiliary cylinders. The result is shorter adjusting times, because it is not necessary to disassemble the cylinders, and in particular the possibility to choose a smaller and therefore less expensive press (thanks to the bigger distance between columns with the same plate size), Millutensil explains. In the MIL /Compact series presses, an actuation system with two cylinders is used, which is said to distribute pressing forces more evenly and on a bigger area.
Thanks to a control panel equipped with Siemens TP1200 Touchpanel and Siemens S7-300 electronic PLC, which manages all the press functions, the machine use is simple, easy and comfortable, the company claims.
Furthermore, a hydro-mechanical device works without interruption all along the press stroke, preventing the accidental fall of the upper plate. Addictionally, it is possible to adjust, set and store the press speeds by means of an exclusive mould level self-learning system, which is defined in levels (L1, L2, L3).
The setting of levels (L1, L2, L3) considerably facilitates adjusting operations, guaranteeing the maximum repeatability and safety of movements with a significant reduction of the risk of accidental impacts.
The electronic control of the upper plate's parallelism provides the required accuracy.