RETURN ROLLERS
REDUCES MATERIAL BUILDUP, WEAR, AND OVERHEATING RISK
ROLLERS WITH POLYURETHANE RINGS
For demanding conditions
• Higher load capacity.
• Greater abrasion resistance.
• Lower thermal risk than rubber.
INJECTED POLYURETHANE COATING
For extreme conditions
• Very high load capacity.
• High abrasion resistance.
• No heat buildup due to hysteresis.
• Maximum coating adhesion to the roller’s metal core.
If a helical design is included,
cleaning performance is
improved by directing the
material toward the center or
toward the sides (depending
on the requirement).
ROLLERS WITH RUBBER RINGS
For standard conditions
• Good traction with the belt.
• The most cost-effective option.
ULMA POLYURETHANE (PU) RINGS
MORE STRENGTH. LESS WEAR. MORE RELIABILITY.
PU ULMA
Density (g/cm3): 1.25
Yield strength (N/mm2): > 50
Elongation (%): > 450
Abrasion (mm3): < 30
Hardness (Shore A): 87
Reduces the risk of fire
The lower melting temperature of ULMA PU helps prevent reaching critical temperatures that can lead to fire.
Rubber > 300 ºC
PU < 120 ºC
Reduces wear caused by abrasive dust
Worn rubber
Unworn polyurethane
