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Moving Webs Forward - Faster

This email address is being protected from spambots. You need JavaScript enabled to view it.     |    (920)235-5501

ISO 9001:2008 

C.R.E.W. Inc. - Custom Rolls Evolving Webs

C.R.E.W. Inc. (Oshkosh, WI) is a progressive converting roll manufacturer providing the highest level of service and quality products available within the industry.

At C.R.E.W. Inc. our strength is designing, engineering, manufacturing and refurbishing custom rolls - including heat transfer rolls (ie chill rolls or hot oil rolls), for the web converting industry. 

We also offer many standard dead shaft idler rolls and live shaft idler rolls for the film, foil, and printing converting industries. 

Since 1999, our reputation has been built on our focused attention to understanding your unique needs, producing quality products, and meeting/exceeding delivery dates - one customer at a time. It is why our customers come back to us, time and time again - over 80% of our customers have been with us longer than 5 years.

Everyday we strive to give our customers an edge in the marketplace – whether it is designing a custom roll, refurbishing an existing roller or manufacturing a roll within a tight timeline.

Use our website to request for a converting roll quote.  If you don't see what you're looking for, or aren't sure what you need, email us - This email address is being protected from spambots. You need JavaScript enabled to view it. or call us - (920) 235-5501 and with our years of experience we'll figure it out together!

Get to know C.R.E.W. Inc  (Oshkosh, WI) - you will quickly understand that we can help you solve your roll converting questions!

Some of the rolls we manufacture include:

Air Turns

Air Turns

Not technically a roller per se because it doesn't rotate, air turns perform the function of a roller when contact with the web will disrupt a coating or printing on the web. The web floats over the surface of the air turn on a cushion of forced air at a predetermined wrap angle, thereby maneuvering the web into position like a roller. Air turns are also used to flip the web when a pair is used in a turn bay. 

Anilox Rolls

Anilox Rolls

Anilox Rolls and Gravure Rolls apply (depending upon the configuration) ink, adhesive or some other liquid to the web. They are either engraved or coated with a porous surface to contain the liquid until its application. The amount of liquid and its viscosity is needed to determine the amount to be applied. 

Anvil Rolls

Anvil Rolls

See Slitter Rolls. 

Calendar Rolls

Calendar Rolls

Calendar Rolls (usually configured in pairs) are used to gage a web from a heavier thickness to a predetermined thickness by running the web through a controlled gap. Depending upon the type of web to be calendared, the rolls can be heated and/or hardened. In many instances, there will be a number of pairs of calendar rolls in the process before the web is calendared to the proper thickness. 

Carbon Fiber Idler Rolls

Carbon Fiber Idler Rolls

Carbon Fiber Idler Rolls, either dead shaft style or live shaft style, are primarily used when both high strength and low weight are required. This is due to their high expense and extended lead time. 

Coating Rolls

Coating Rolls

Coating Rolls are probably the most precise rolls specified. For example, the quality and uniformity of the coating on the web is primarily determined by: 

  • the amount of runout measured from the bearing journals to the roll body
  • the straightness of the roll body
  • the cylindricity of the roll body
  • the surface finish of the roll body

When you're talking about coatings on such webs as magnetic tape or polarized film, this thickness is measured in microns and is critical to the final product. CREW has manufactured Coating Rolls and Bearing Housings for both OEM's and end users to run out and straightness tolerances of .00002 (20 millionths of an inch). Our attention to detail, along with dedicated craftsmen and precision machine tools, allow us to produce rolls to your most critical specifications. 

Dancer Rolls

Dancer Rolls

Dancer rolls are usually lightweight dead shaft idler roll whose primary purpose is to sense smooth our changes in web tension. The important feature of a dancer roll is its total weight. The lighter the weight, the more sensitive the roll will be. Dancer rolls are connected to a transducer which provides feedback to the controls for maintaining correct tension on the web. 

Drive Rolls

Drive Rolls

See Nip Rolls.

Gravure Rolls

Gravure Rolls

See Anilox Rolls. 

Idler Rolls

Idler Rolls

Idler rolls are the backbone of most web fed applications yet they don't get the credit for a quality product. A quality idler roll usually goes unnoticed in the overall operation of most lines. Conversely a poor quality idler gets noticed a lot: 

  • If it's out of balance, it can cause undo vibrations throughout the machine line.
  • If its straightness isn't held, it can cause web drift.
  • Rough surface finishes or surface defects might mark the web.
  • Excess runout shows up as angular misalignment and can cause a myriad of problems.

At C.R.E.W., we're intimately familiar with idler roll standards of the industry and we not only meet them, but beat them. As a general rule, you can expect a C.R.E.W. idler to meet the following criteria: 

  • 32 Ra surface finish
  • Dynamically balanced to well within Quality Grade G 6.3 @ 1000–2000 FPM (or your line speed)
  • Straightness across the roll face within .0005 per foot of face length
  • Runout within .002–.005 (depending upon the diameter-to-face ratio)
  • Materials: steel, aluminum, stainless steel & carbon fiber

 

Laminating Rolls

Laminating Rolls

See Nip Rolls. 

Nip Rolls

Nip Rolls

Some rolls are subject to heavy loading during use: to pull the web; to laminate two webs together; to drive other rolls; etc. Called by a variety of names (drive rolls, layon rolls, laminating rolls, contact rolls, etc.), these rolls have one thing in common – they are nipped against something by mechanical, pneumatic or hydraulic force. In many cases, the nip roll is rubber covered.

When you need a nip roll and aren't sure how strong it needs to be, let us know about your application. If you're updating an existing line and need to know if your present rolls will work, we can advise you there, also.

Things such as: 

  • cylinder size
  • air or fluid pressure
  • any mechanical advantage
  • bearing centerlines
  • speed

All go into the equation to design the optimum, safe roll without any overkill.

Plate Cylinders

Plate Cylinders

Plate Rolls, or Plate Cylinders, have a polymer plate attached to them for printing the web. The plate is either mounted on a sleeve that is air loaded onto the mandrel/plate roll, or attached with stickyback. Plate cylinders need to have precise concentricity for quality printing. C.R.E.W. has made hundreds of these cylinders having concentricity within .0002-.0005. 

Slitter Rolls

Slitter Rolls

Slitter rolls and anvil rolls are hardened rolls (usually over 60 Rc) on which a circular cutter rides in order to part, slit or perforate the web. Some slitter rolls are multi-grooved over which a razor or razors are mounted to slit the web. 

Spreader Rolls

Spreader Rolls

Wrinkling has been a problem ever since man started running webs over rollers. Spreader rolls (rollers that are supposed to remove and/or prevent web wrinkling) can take many forms: Herringbone pattern, Chevron Groove pattern, Reverse Taper configuration, Grooved Rubber Cover, to name a few. Different types of spreader configurations work differently depending upon the process, the web material, the wrap angle, etc. The intent is to move the web to the outboard edges and tighten the center of the web, thereby removing or preventing any web wrinkling.  

 

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