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The DUO-GEARBOX coupled to the process unit of the ZPT compounded is normally
driven by a Dc motor with a SAFETY COUPLING.Driving speed is positively infinite
variable(PIV).The installed SAFETY COUPLING , as a mechanical torque limiting device,
protects the process unit from a torque overload.

The DUO-GEARBOX is designed according to the strict and recognized AGMA
standards-the products with maximum durability , safety margins and noise free,
forced lubricating unit is also integrated.

The back pressure created by extruding discharge devices (filting screen. start-up valve.
strand dies etc.) is balanced by a special tandem thrust bearings. The max. value for
conventional use is 150 BARS. But up to 300 BARS can be supplid in special requested.

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