On startup, when running two rolls of paper, I have difficulty with sheet hang backs in the first 6″ (150 mm) of the pile. I am not using a custom pallet. I am using standard skids. How can I overcome this situation? If the hang backs are only in the first 6″ (150 mm) of […]
Author: Scott
When I slit a web into two streams across, the cut sheets tend to interweave in the overlap section, As a result, the front edge of the sheets are damaged by the center jogger blade. What can I do to prevent this?
When I slit a web into two streams across, the cut sheets tend to interweave in the overlap section, As a result, the front edge of the sheets are damaged by the center jogger blade. What can I do to prevent this? Make sure there is adequate belt tension in the bottom slow speed tape […]
I have an automatic pile lowering feature on my stacker. When the pile lowers, the sheets skew, causing an unevenly jogged stack. How can I improve pile quality?
I have an automatic pile lowering feature on my stacker. When the pile lowers, the sheets skew, causing an unevenly jogged stack. How can I improve pile quality? Your problem could be caused by the following: One of the jogger blades is lower than the other. Set all jog blades to the same depth. The […]
In the stacker, we experience turned up edges on the sheets. What causes the sheets to fold this way?
In the stacker, we experience turned up edges on the sheets. What causes the sheets to fold this way? Turned up edges are caused by too much up curl in the web. Adjust the amount of decurl accordingly until you get a flat sheet. Turned down corners can be the result of not enough bottom […]
When sheeting a soft coated material, the Operator notices tape marks. The marks do not extend along the entire surface of the sheet. Where is this occurring, and how can I solve it?
When sheeting a soft coated material, the Operator notices tape marks. The marks do not extend along the entire surface of the sheet. Where is this occurring, and how can I solve it? This type of tape mark is likely caused by setting the pinch at the overlap carriage too tightly. To be certain, take […]
I notice full length tape marks on the cut sheet. Where is this occurring, and how can I solve it?
I notice full length tape marks on the cut sheet. Where is this occurring, and how can I solve it? Tape marks are more apt to happen when sheeting heavier caliper stock and highly coated materials. The markings originate in the high speed tape section at first pinch point of the top and bottom tapes. […]
I am having trouble getting a clean slit edge. How can I solve this problem?
I am having trouble getting a clean slit edge. How can I solve this problem? The first thing to do is to make sure the top slitter blades and bottom rings are in good condition. If the blades have nicks or are dull to the touch using the face of your thumbnail, replace the slitters. […]
I am getting variation in sheet length. What should I do?
I am getting variation in sheet length. What should I do? The most often asked troubleshooting question concerns sheet length variation. Troubleshooting these problems can be frustrating but the following are some of the basic things to check: If the sheets are always short: Check for slippage at the nip roll. This can be due […]
When I slit and run two piles, one sheet is square and the other is out of square What adjustments can I make to address this?
When I slit and run two piles, one sheet is square and the other is out of square What adjustments can I make to address this? Be certain there is enough tension to keep the web taut and the slitters are set properly. Watch the flow between the pull roll section and tape take away […]
I’m having trouble running 0.024” (400 gsm) thick board on my stationary bed knife cutter. The leading edge has a lip or “bead” on it and the trailing edge is fuzzy. What can I do to fix this problem?
I’m having trouble running 0.024” (400 gsm) thick board on my stationary bed knife cutter. The leading edge has a lip or “bead” on it and the trailing edge is fuzzy. What can I do to fix this problem? Both problems are caused by material flow through the knife area and knife cut angles. There […]
