Sometimes referred to as red oxidation, rust is corrosion that results from metal reacting with oxygen. Far from just a cosmetic issue, rust reduces the mechanical strength of metals which contributes to an
unpredictable reduction in service life.
Because of high humidity levels or locations near large bodies of water, certain areas of the country are more likely to encounter issues with rust. In addition, because of abrasive regional soil types, some customers request that no additional lubrication be added to the chain to prevent damage to the chain's pin but this is actually compounds the problem as the chain's lubrication typically includes a rust inhibitor.
It was determined that a corrosion resistant product would be necessary to combat rusting during manufacturing with the added benefit of extended service life while out in the field. The manufacturer had two types of product solutions to consider-- stainless steel or plated roller chain.
While stainless steel has higher corrosion resistance than plated chain, the reduction in power transmission and the higher cost of the materials eliminated this as a potential option. It was determined that a plated product would be a more cost effective solution and a nickel plated corrosion resistant chain was selected as the solution.
Following the switch to a nickel plated roller chain, this manufacturer has eliminated rusting chain on their production line and they are looking to incorporate the nickel plated chain onto additional application.
The benefits of this chain have also extended the end users of the planting machinery. With addition of the corrosion resistant finish, the chain is now lasting up to four times longer in service.