Lubrication at temperatures >200°C is very often poorly controlled. Use of traditional or even synthetic greases is not enough, or requires almost daily topping up. To resist decomposition or strong evaporation of the base oils at these extreme temperatures, the solution is to employ non-conventional chemistries. The thickener should be infusible or show a dropping point close to 300°C.
Very High Temperature VHT greases thus conserve sufficient viscosity to effectively lubricate the mechanical elements.
Under still more extreme conditions, it is preferable to use pastes highly charged with solids (graphite, copper, zinc,…). The grease is thus only a vector to give a uniform deposit of a dry lubricant to protect the equipment.
Very high temperature greases are particularly suitable for lubrication of elements such as:
- Oven fan bearings
- Bearings for pre-heater rollers
- Conveyors, industrial painting lines
- Tyre moulds
- Oven racks and furnace hearth rollers
- Screwed assemblies...
CONDAT very high temperature greases use non-conventional chemistries
- Thickener infusible or with a very high dropping point
- Base oils showing exceptional resistance to oxidation
- Thermal and mechanical stability
- No formation of lacquer, no coking
Very high temperature greases allow not only lubrication at temperatures of the order of 280°C but also lifetime greasing in the range of -25° to 180°C.
|Stable to oxidation, maintenance of the lubricating film|
|Thermal stability, load resistance||Reduced temperatures in load zones = Improvement in equipment lifetime|
|Mechanical stability, very low evaporation||Sealing maintained = reduction in grease consumption|
They simplify your greasing plans and systematically lead to a very important saving in labour, machine stoppages and bring significant improvement to equipment lifetime.