High temperature use:

The customer must specify the temperature and type of application before ordering to ensure that the appropriate wheel type is selected. As temperatures increase wheels become weaker and this lowers the load capacity. In static (non-moving) applications with sustained high temperatures over long periods of time the material will begin to deteriorate, which shortens the working life of the wheel. Fallshaw make three different wheel types designed specifically for use in high temperature environments. These specialised wheels use standard lithium complex grease (STABUTHERM® GH 461) which has excellent water resistance (24hrs at 90°C), bearing retention and long life.

1) Glass filled Nylon 150 - 210°C (300 to 410°F):

The best choice for Hospitality based applications such as 'food baking' ovens. It can withstand sustained high temperatures and is gentle and quiet on most floor surfaces. Fibreglass reinforced nylon wheels are the preferred wheel for extended periods of up to 210°C (410°F) (assuming most of their life is spent outside the oven), and for short periods up to 230°C (446°F).

2) Phenolic 100 - 300°C (570°F)

Phenolic is more brittle than Glass Filled Nylon and it has a shorter life cycle but can go up to very high temperatures. Phenolic is a good choice for light duty Industrial applications with very high temperatures such as ovens used for curing paint. The load capacity decreases from 125kg at 100°C (212°F) to 40kg at 300°C (570°F) therefore it is very important to ensure that the load capacity of the trolley fits within the appropriate temperature and load capacity. Phenolic wheels (with special inorganic fillers and PTFE bushes) are preferred for extended periods up to 280°C (536°F) assuming most of their life is spent outside the oven and for short periods up to 300°C (572°F). These have a thick cross section, but are more brittle than either nylon or ordinary grades of Phenolic. WARNING: Phenolic wheels are not suitable for medium duty applications or applications where wheels are subjected to impact such as when a trolley is rolled down steps.

3) Cast Iron 200 - 400°C (390 - 725°F):

The best choice for Industrial based applications such as 'paint curing' ovens and also for use in sustained high temperature environments. It can withstand extreme high temperatures as well as higher load capacities than all other wheel types. Cast Iron wheels do not have bearings. They have a plain bore fitted with an axle spacer that is lubricated with high temperature grease. This grease can be used up to 230°C (446°F) for long periods. For temperatures that exceed 230°C (446°F) a more exotic grease is required. The Production Manager must be notified of this prior to placing the order and the customers required temperature noted on the picking slip once the order is placed. For sustained high temperature use, we offer a range of cast iron wheeled castors used with high temperature grease. WARNING: Cast Iron is heavy, noisy and may damage concrete floors and other floor surfaces.