About Us Products News Resource Center Customer Service Contact Us Register/Log In

CAC product line

CAC COR-LOK Air Shafts and Chucks

Air Shafts & Chucks


CAC WrinkleSTOP Anti-Wrinkle spreader roll

WrinkleSTOP® Anti-Wrinkle

CAC FOX Trim Removal Systems

Pneumatic Trim Removal


Core adapters

CAC Adjusta-Pull Anti-Wrinkle

Adjusta-Pull® Anti-Wrinkle

CAC Pneumatic Matrix Removal

Pneumatic Matrix Removal

CAC Aluminum Core Cones

Aluminum Core Cones

CAC Bowed Roll

Bowed Roll

CAC FOX System with TrimAx Chopper

Trim Removal with Chopper

CAC Mechanical chucks and shafts

Mechanical Chucks & Shafts

CAC Scroll Roll

Scroll Roll

CAC Trim-AX Chopper

Trim-AX™ Chopper

CAC Safety Chucks

ShaftLok™ Safety Chucks

CAC Rollers and Roller assemblies

Roller Assemblies

CAC Shaft Holders

Shaft Holders

CAC Idler Rolls

Idler Rolls

CAC Nip Roll

Nip Roll Assemblies

CAC Roller Mounting Blocks

Roller Mounting Blocks

CAC Air loaded dancer roll assemblies

Dancer Roll Assemblies

CAC Idler Rolls


CAC Unwind/rewind stand

Unwind / Rewind stand

CAC Shear Cut and Inline Slitting Systems


CAC Electrically Heated Rolls

Heated Rolls

CAC Vertical Accumulators


CAC Roll Lifting

Roll Lifting

CAC Videos

Product Videos

CAC literature

Download CAC's Literature

Featured Tech tip: Heated Roller Wattage


Tech tip: Heated Roller Wattage

When considering heated roller design and capabilities it is important to understand the wattage requirement for the application. The wattage required to heat the roller in an acceptable amount of time for your application is an important consideration. However, of equal or greater importance is the wattage required to heat your web and maintain roller temperature while your web is pulling away calories.

Wattage requirement for getting the heated roller to temperature and heating your web while maintaining roller temperature can be calculated for any application. This information is crucial to accurately calculate wattage and ultimately design the heated roller, properly, for your application:

  • What types of materials will you process with the heated roller? This information helps to give us an overall understanding of the scope of your project.
  • How fast do you want to heat the roller to your required temperature?
  • What is the density of the web material you will heat with the roller? This should be expressed as Lbs./in3
  • What is the thickness range (thinnest to thickest) of your web?
  • What is the temperature rise for the roller? This will be ambient temperature (roller not energized) subtracted from maximum temperature required. So, for example, if your ambient temperature is 70oF and you want to heat the roller (and your web) to 120oF, then your temperature rise (120-70) = 50oF.
  • What is the running speed (minimum to maximum) of your machine?
  • What is the web wrap around the circumference of the roller? This is expressed in degrees.
  • Is there a desired heated roller diameter or restrictions for diameter?
  • What is the width range (narrowest to widest) of your web?
  • What is the specific heat of your web material? This should be expressed as BTU/(Lb.)(oF). This is, perhaps, the one of the hardest specifications to attain. However the wattage requirement is directly affected by this value. For example, the specific heat of copper foil will be vastly different from paper, therefore, wattage requirement for a heated roller designed to heat copper foil will be vastly different from a heated roller designed to heat paper. The good news is a quick web search for the specific heat of your web material will often times glean good results.

A properly designed heated roller will heat web to desired temperature and maintain that temperature through the full scope of the machines capabilities. To ensure a proper design, keep the information listed above on hand.

Sign up for CAC's weekly tech tips
        View Sample

Converter Accessory Corporation
201 Alpha Road
PO Box 188
Wind Gap PA 18091-0188

Phone (800) 433-2413 -(610) 863-6008
Fax (800) 709-1007 - 610) 863-7818


What is Web Handling?
Web Handling is the science, engineering and equipment necessary to successfully transport a continuous flexible material through various processes without defect. Enhancing Web Handling with proper equipment will ensure materials are processed at their maximum efficiency, allowing the process to generate maximum profits.

**Click here for CAC's terms and conditions**