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polyurethane

Custom Colored Polyurethane Parts

Polyurethane is one of the main plastics used for sawmill applications. Everything as diverse as kraftmill safe machined U-channel, to sprockets, Shark Fin lugs, and bearings. Softer urethane being used for Redco Deadplate or other shock and vibration dampening products. Most of the time for customers color isn’t important but sometimes a mill manager or … Continue reading »

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Custom J-Hooks and C-Bars

Polyurethane J-hooks and C-bars are a sawmill staple, with the plastic used usually being 75D hardness polyurethane. These hooks and c-bars are typically molded which means there is an upfront tooling cost; however, the per-part price is much lower than a machined part. Redwood Plastics and Rubber can manufacture whatever hook profile you need but … Continue reading »

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81X Sprocket Modifications

Plastic 81X sawmill sprockets are primarily a molded product, this is to reduce delivery times as well as cost. The standard sprockets available from Redwood Plastics and Rubber have a hub that is 3-3/4″ wide (length-through-bore). Often these days customers want a thinner hub to fit into their sawmills and in most cases that’s fine! … Continue reading »

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Deadplate: 5 FAQs

Redco Deadplate is a polyurethane with very specific properties and the sole application in sawmills of absorbing and deadening shock. Because Deadplate is so unique, sometimes customers don’t understand how to use incorporate it into their mill or even request a quote. Fortunately, it’s an easy material to quote, manufacture, and install. So what are … Continue reading »

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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 »

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Product Announcement: H78 Sprockets

Redwood Plastics and Rubber has discontinued their line of sprockets for H78 sawmill chain. However, their 81X sprocket, which is now standard, is perfectly suitable for use on H78 chain. The difference lies in the thickness of the A-plate which holds the teeth. The H78 mold was 1″ wide whereas the 81X sprocket A-plate is … Continue reading »

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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 »

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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 »

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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 »

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SN Bearing Inserts – Part Numbers and Profiles

The Redco series of plastic SN bearing inserts is a popular sawmill product Redwood Plastics branches widely stock. These inserts are made of Redco 750 polyurethane and have proven their success in this application for decades. In the beginning, these inserts were meant as an emergency replacement for SN bearings but worked so well many … Continue reading »

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