Mikael Karlsson, product manager of presses at AP&T, with the new servo hydraulic pressSwedish company
AP&T is now introducing a new version of its servo hydraulic press with even lower energy consumption, primarily intended for progressive die stamping which requires a large number of strokes per min and for other types of forming that require high precision, including embossing, punching and deep drawing.
Mikael Karlsson, AP&T product manager of presses, said: “With the help of transmission cylinder technology, we have constructed a fast and very energy-efficient solution that also keeps to a very low noise level.”
When the first generation of AP&T’s servo hydraulic press arrived a few years ago, it received a lot of attention, not least for its very low operational energy consumption and longer holding times, for operations such as press hardening. Now AP&T is revamping it for cold forming. For press operations with short and medium strokes, energy consumption can be up to 80% lower than for a corresponding conventional hydraulic press from AP&T.
The company’s engineers have now equipped the press with a closed, robust hydraulic system with a small oil volume and few components. Thanks to the modular system, each press can be optimised to use one or more cylinders depending on the application required. The latest version of the servo hydraulic press is suitable for embossing heat exchanger plates and fuel cell plates, transfer applications and progressive die stamping, as well as for most types of drawing operations.
Mr Karlsson concluded: “With today’s high energy prices, our new press can quickly provide significant cost savings. Exactly how great the savings will be varies, of course, depending on the application. But in a customer case where we compared our solution with an existing hydraulic press, the savings were estimated to be between 400 and 500 euros for every 24hr of production.”