Tagged With: polyurethane
Sawmill Bushing and Bearing Materials
Plastics are excellent bushing material that replace metal. In contract to metal, plastic bearings are self-lubricating, require less grease or maintenance, and last longer. Typically six different plastic materials could be used as these bushings and each will be described. Redco Polyurethane: Called “Redco 750 XL” this is a lubrication impregnated polyurethane bearing material. It’s … Continue reading
Product Spotlight: Redco SPS-2000
Redco SPS-2000 is a remarkable plastic that has excellent properties and is far from being one-dimensional. The product was specifically developed to be used for mills supplying fiber to kraft pulp mills (or for use at those mills themselves). SPS-2000 dissolves in the Kraft cooking process and will not contaminate the fiber. This itself makes … Continue reading
SFK Housings and Custom SN Inserts
We get requests from customers disappointed that Redwood Plastics and Rubber does not yet carry SN inserts for the newer (and larger) SKF bearing housings. The question “why” is pretty easy to answer: the mold for each size would cost upwards of $6,000 and demand simply isn’t out there yet. We would have to be … Continue reading
LSI Plates
If you’re considering a custom lug or hook you need to consider an LSI plate. This is an insert between the Redco 750 polyurethane which provides added sheer strength for the hook or lug. They are not always necessary as some designs build up a “bump” of extra urethane around the mounting holes, which provides … Continue reading
Product Spotlight: Roller Chain Diverter Gates
Roller nose diverter gates are a popular sawmill product. They’re available manufactured out of two materials, with the bulk being natural UHMW. They are; however, also available made from sturdy Redco 750 polyurethane. The nose kit with the roller is actually a popular, but optional, addition. It consists of two laser plates with a UHMW … Continue reading
Shark Fin Replacement Parts
The Shark Fin Board Turning System (www.Sharkfinsystems.com) has plastic components manufactured from durable Redco polyurethane. Even though these components are high-wear and take significant impact, they will eventually require replacement. What you may not know; however, is that through the many years the Shark Fin System has been used the fin-shaped lugs have undergone several … Continue reading
Product Spotlight: Redco Pusher Lugs
The humble plastic pusher lug is a workhorse of the sawmill industry. Plastic pusher lugs, made from Redco polyurethane or UHMW, offer excellent impact and low-temperature tolerance (especially UHMW). These lugs will not mark the wood and also absorb shock. Being lighter than metal, these lugs reduce the amount of power required to move the … Continue reading
SPS-2000 vs. Synsteel
We often get asked about the difference between SPS-2000 Kraftmill safe polyurethane and Redco pulp-safe Synsteel UHMW. In many cases, customers think they’re equivalent products except one happens to be made from polyurethane and one happens to be made from UHMW. This is not correct! The materials are for two different applications. SPS-2000 is a … Continue reading
Design Your Deadplate
Redco Deadplate by Redwood Plastics is a shock absorbing polyurethane design for use in lumber mills. Deadplate’s elastomeric properties cushion the blow of lumber reducing rebound and protecting machinery. Getting a quote on a custom Deadplate application isn’t as complicated as you might think. You need to be able to provide four pieces of information: … Continue reading