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„The new BZ2-S8“

Cam disk technology with innovative features

With the new BZ2-S8, Otto Bihler Maschinenfabrik is presenting the latest generation of its proven series of processing centers. Many of the system’s innovative features help take conventional disk cam technology to new performance heights – with increased production speeds and reduced maintenance costs.

Conventional disk cam technology continues to offer outstanding advantages in the stamping and bending field and is consistently further developed at Otto Bihler Maschinenfabrik. One current example is the new processing center, the BZ2-S8. This embodies the latest generation of the proven series of manufacturing systems and offers numerous new features and functions. As a result, the BZ2-S8 is now able to achieve production speeds of up to 700 rpm. This is also possible thanks to the machine’s completely redesigned drive. Thus, compared to the predecessor model, the processing center no longer has a frequency-regulated three-phase motor but is instead driven exclusively by servomotors. The slide units have also been adapted to the high speeds and are now considerably more robust than before. The BZ2-S8 is again operated and controlled using the VC 1 controller.

Circulating lubrication system

Another highlight of the new BZ2-S8 is the innovative circulating lubrication system with oil return mechanism. This is a closed, encapsulated system that replaces the previous loss lubrication system via a central lubrication system at the slide units and presses.  Consequently, oil-dripping parts and slides are now a thing of the past because the units connected to the circulating lubrication system are now lubricated as if they were part of a circuit. The oil is then collected again and fed into the tank. Because the circulating oil system does not generally need to be refilled, the previously high level of oil consumption is dramatically reduced. As a result, the new BZ2-S8 is not only cleaner during operation but is also more economical and environmentally friendly. The 30-t and 10-t presses have also been connected to the circulating lubrication system and now operate with no oil leakage. In addition, the braking angles have also been considerably reduced. As a result, the machine does not continue running for so long after a malfunction. This reduces the risk of tool damage.

Open, compatible concept

Existing BZ 2 tools can also be used at the new BZ2-S8 with only relatively minor modifications. The open machine concept also guarantees easy access for fast simple tool setup and maintenance work. In addition, it is also an easy task to integrate further manufacturing processes such as thread cutting, welding, screw insertion and other stations in the system. In total, eight drive positions are arranged one after the other on both the upper and lower drive level on the two processing faces of the BZ2-S8, and the machine therefore has 32 drive positions. The fact that the two faces are absolutely identical permits the linear arrangement of all the units and process equipment both on the front and at the back plane. The system has a modular structure and can therefore naturally be flexibly equipped and is supplied configured by Bihler to meet individual customer requirements.

New dimensions

Overall, all these advantages make the BZ2-S8 a genuine high-performance cam based machine. For all users, it opens up hitherto unknown dimensions in terms of production performance, flexibility, process reliability and manufacturing quality – and is therefore also able to compete with any progressive processing technology.

HIGHLIGHTS BZ2-S8

High-performance manufacturing system for mass production of stamped and formed parts and sub-assemblies

  • High production speeds up to 700 spm
  • All processing units driven by servo motors
  • Larger working space (plus 140 mm) for easy integration of processing modules
  • Connection of presses and slide units to circulating lubrication system: drastically reduced oil consumption
  • Convenient and secure operation with VariControl VC 1

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