Trim cutters have a micro adjustment for the bed knife and specially ground rotating knife that provide a progressive impact shear cut action. In a progressive impact shear cut cutter, the rotating blades are slanted so that the cutting point between the rotating and fixed knives moves progressively from one end to the opposite end. These cutters are especially suited to cut extremely thin, flexible materials. The cutting process requires that the rotating knife edge clears the bed knife edge by less than .0005”. This eliminates any metal to metal wear on the knives, but requires very precise edges on the knives and a stable bearing arrangement. The correct rated bearing; must be used to fit the application. Trim cutting is a critical application that needs to be done correctly with units that have been cared for meeting OEM specifications. Valley Grinding provides this service:

• Correctly sharpening fixed bed knife and rotating blades per OEM directions
• Cleaning and Checking bearing unit.
• Inspecting and replacing worn parts in housing assembly.
• Reassemble and torque to correct specifications.
• Rotor assembly and lateral run.
• Calibration and adjustment of bed/fly knife seating.
• Check quality of cut using customer product sample.
• Specially designed pallets to ensure that units maintain calibration during shipment.
• Replacement fly/bed knives.