RETURN ROLLERS
ULMA – RETURN ROLLERS are designed to address the challenges caused by material sticking to the belt, abrasion, and the mechanical demands of the return side. ULMA offers different configurations depending on operating conditions.
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.
All configurations are available with flame-retardant material (UL94 V-0 standard).
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
APPLICATIONS
Configuraciones para retorno plano, retorno en V y guirnalda de retorno:
Need to define the right return roller solution?
Tell us about your conveyor’s operating conditions. We’ll help you select the most suitable configuration based on the material being conveyed, load, abrasion, and the installation’s cleaning requirements.
- Download the Return Rollers Catalog.
- Download the General Catalog.