• USK 230 B - HV 208
USK 230 B - HV 208 II

Automatic Sharpening Machine USK 230 B - HV 208 II

The USK 230 - HV 208 II sharpens up to 100 cutter knives (500 l) per 8 hour shift, fully automatically. The average sharpening and polishing time per knife run from 2 - 3 minutes, depending on the blade size. With each regrinding, the complete blade profile is processed. There is very little material removal from the knife. A 500 l cutter knife can be reground up to 40 times.

High cutting speeds (up to 180 m per second, which equals 650 km per hour or 404 mph) and side pressure put a substantial amount of mechanical strain on the ­cutter knives. Thus, the polished edge of a cutter knife has a direct impact on its break resistance.

The USK 230 B - HV 208 II ensures exact and precisely angled edges as well as the ­preservation of the cutting profile and the original blade shape – and all that  ­throughout the entire operating life of the cutter knives.

  • Copy clamping plate SP 110
    The plate contains all necessary information about the shape and size of the knife. Each knife type receives its own custom-made copy clamping plate. Inconvenient programming and adjusting is unnecessary. This means simple and fast handling. It only takes one minute to convert the machine to a different knife type.
  • Knife types
    Linear-shaped cutter knives as well as sickle-shaped cutter knives can be ground. The maximum knife size is approx. 450 mm (17.7 in), that equals a cutter knife of around 500 l.
  • Abrasives
    Water resistant wet-grinding belts are used to grind the knives. The grinding abrasion is bound by the coolant water. This means that it doesn’t get into the environment. Up to 40 cutter knives (500 l) can be ground with one belt.
  • Sharpening principle
    The operator moves the first knife of the set by tip operation into the grinding position. Pressing the start push button a second time activates the chosen sharpening program. The following blades of the knife set are moved automatically to the detected grinding ­position. From there, they are sharpened with the selected ­sharpening program.
  • Coolant unit
    A coolant unit prevents the cutting tools from over­heating during the grinding process. The flow rate is measured by a flow detector. If cooling is insufficient, the coolant monitor shuts the machine off.
  • Polishing and deburring
    During the automatic grinding process, the operator polishes and deburrs the knife on the 340 mm (13.4 in) big finned brush. The ­precisely matched peripheral speed and the optimally balanced brush resistance compensate operational mistakes.
  • Operation
    The USK 230 B - HV 208 II is very easy to use. The operator determines the most ­important functions, such as the number of the grinding cycles and the camber of the knives, via touch panel directly on the machine. This means that with every resharpening, the blade is given a cutting edge tailored exactly to the product. The created grinding programs are stored in the data memory of the machine. The ­number of grinding programs is unlimited. Updates and new programs are loaded onto the HV 208 online.

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KNECHT Maschinenbau GmbH

Phone +49-7527-928-0
Fax +49-7527-928-32

Email: zentrale(at)knecht.eu