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1.1
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en_polyurethanecovers_
Withstand tough wear.
Withstand heavy loads.
Simply invincible.
Polyurethane elastomers are highly sophisticated compounds which have proven their worth in many types of industry – thanks to their outstanding mechanical and dynamic properties. SchaeferRolls uses polyether- and polyester-based polyurethane systems developed in-house, manufactured via rotational or hot/mold/vertical casting depending on their application. SchaeferRolls polyurethane covers are designed to be as resistant as possible to moisture, chemicals, heat and wear; making them perfectly suited to maximum linear loads and speeds as a result of their excellent dynamic properties and special design. Outstanding load capacities and superb resistance to wear mean you can combine any kind of surface designs.
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Roll positions subject to particularly high loads employ a special metal binding system with a functional binding layer (base layer) and reactive intermediate layer (‘interleafing’). This ensures stable adhesion to the roll body and ensures forces are transferred between the different materials, even under maximum dynamic loads.
Manufacturing process:
Y
•  Rotational casting
•  Hot/mold/vertical casting
Properties and advantages:
Y
•  Unrivalled resistance to wear, thanks to optimized chemical components 
   and innovative cross-linking methods  
•  Excellent core and layer bonding
•  Ultimate chemical and thermal load limits
•  Excellent resistance to hydrolysis for rolls subject to high stresses
•  Suitable for all surface designs
Areas of application:
Y
•  Paper making: press, suction press and size press rolls, coating rolls, reel spools
•  Industrial rolls: various functional roll positions such as sheet metal or machining
Special roll covers:
Y
Polyurethane covers for press rolls and suction press rolls (paper and board manufacturing)
• Q2
• QX
• cyclus 3
• U.coat
• U.coat R
polyurethane covers
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