Roller

1 – Gold Roller ™
The Gold Roller ™ is made from 100% PBO yarn (polybenzoxazole)
It has superior tensile strength and modulus to aramid fibres (such as Kevlar). It also offers excellent performance in such properties as chemical resistance, creep, cut/abrasion resistance and temperature. The tensile strength and impact energy absorption of PBO is more than twice that of aramid yarns.
The particular technical parameter of interest to aluminium extruders is the high temperature resistance of PBO, far exceeding aramid fibers. It has outstanding flame resistance and thermal stability and its decomposition temperature in air is 650ºC. (This is almost 100ºC higher than Para aramid). The maximum contact temperature is in the order of 600ºC.
Woven PBO is the most resilient technical textile product available to any industrial sector. It is the ideal answer to the hostile conditions in the initial lead out area (hot zone) close to the extrusion press where durability is paramount. Larger presses in particular will benefit from the outstanding crush resistance of woven PBO.

2- Red Roller™
The Red Roller™ can be used to support extrusions from the press and down the run out without rapid deformation from pressure or degradation from heat.
Most of our competitors produce roller sleeves from felt with a wall thickness of 10mm to allow plenty of wear to take place before replacement is necessary. This philosophy is flawed by the fact that an uneven run out soon develops as the central area of the roller sleeve quickly wears to a reduced diameter. Multiple extrusions then have a tendency to fall to the lowest part of the support roller and marking can occur.
sleeves is to keep the wall thickness down to less than 5mm to
allow a better opportunity to maintain a level run out and to assist heat transfer through the
sleeve to the metal parts of the roller assembly. The advanced materials used to produce the
Red Roller give a better working life from 5mm thickness than would normally be expected from the 10mm thick felt types

3 – Green Roller™
The Green Roller™ is a high-quality sleeve that is highly suitable for the majority of roller positions outside of the initial lead out area (hot zone).
The Green Roller is woven from a high temperature blend of aramid and pan/carbon fibers. They have excellent resistance to abrasion and physical distortion caused by heat and pressure. Their operating contact temperature is around 500ºC making them ideally suitable for most roller positions along the run-out system.

Roller sleeve standard size guides

Inside Diameter / NominalOutside Diameters