Series IV Direct Drive Cut-Off Knife   mddcokicon.png

Technical Features:

  • Max. Design Speed: 1250 FPM
  • Max Board Width: 98" / 110"
  • Board Length (min): 20"
  • Cut Accuracy: +/- 1/64"
  • Sheet Squareness: +/- 1/32"

Key Features

  • Helically Mounted Blades.
  • Low Inertia Precision Knife Cylinders.
  • Torque Loaded Shafts.
  • Pivoting Inlet Section for Easy Access.
  • Energy Efficient (Capacitor Bank System).
  • Triplewall Capability.
  • Superior Blade Life.
  • Vacuum Belt Outlet Section.
  • Redundant Lubrication Systems.
  • Standard "off the shelf" motor, drive and control system.

The Master Cut-Off Knife is comprised of three main sections:

    Master Direct Drive Cut-Off Knife

  1. Infeed Delivery Section
  2. Cutting Section
  3. Outfeed Delivery Section

The Infeed Delivery consists of a supporting plate to hold the board with an independently driven pull-roll section. The delivery Infeed section can be rotated back and away from the cutting section via pneumatic cylinders. This creates a space to allow convenient and immediate access to the knife part and facilitates blade tuning and general maintenance of the machine. The Infeed section can be upgraded to include a secondary no crush pull roll section to provide additional control of the incoming web for higher speed operations.

The Cutting Section consists of a pair of steel knife bars on which the single-piece blades are mounted. Single piece helical knife blades are utilized to soften the impact of the cut action on the knife bars. In this way very low inertia can be used. The position of the upper blade is fully adjustable via the regulating screws housed in the knife support, an integral part of the knife bar, to hold the blade In position for optimum tune. A specially designed self lapping procedure facilitates tuning for the operator and ensure the blades are kept fine-tuned and sharp at all times. Rotation of the shafts is guaranteed by meshed gears (one of etch side) fitted at the head of every knife bar for positive drive between them.

The intelligent design of the Series IV Direct Drive Cut-Off allows for short sheets to be run at the industries highest line speeds. The Outfeed Delivery Section consists of an independently driven no crush exit roll. The outfeed section can also be upgraded to an independently driven anti-skew belt section for the highest control of sheets exiting the knife regardless of speed.

In order to meet different production requirements the Series IV Direct Drive Cut-Off is available in various performance levels, corresponding to the number of drive control units. All drive motors are brushless AC motors and cut length precision is guaranteed via a vector drive control with a power recovery system, greatly reducing power consumption.

The Master Cut-Off Knife is run by a high performance control system featuring:

    Master Direct Drive Cut-Off Knife

  • Order Visualization
  • Fault Diagnosis
  • Machine Status
  • Operator Override Facilities
  • Production Data

This system also allows the Master to communicate with other DryEnd machinery and scheduling systems, as well as enabling remote access via modem or network connection for additional Fosber diagnostic and support services.

Operator safety on the Series IV Direct Drive Cut-Off by use of extensive guarding and lockout devices will satisfy the most stringent of company or government standards.

Upgrades Available