Tagged With: uhmw
Polyurethane vs. UHMW
Regarding sprocket applications in particular it seems the default request in 2020 is for “UHMW” sprockets. Indeed, UHMW is used in some sawmill sprocket applications and is widely used elsewhere in sawmills as wear parts. However, the material is not ideal for use in either a drive or idler sprocket – why is this so? … Continue reading
Trimmer Lug Spec Sheet
White or black UHMW polyethylene trimmer lugs are ubiquitous at most sawmills. Unlike metal lugs, the softer UHMW takes impact while being gentle and non-marking with the lumber. These are also an easy to manufacture part that Redwood Plastics and Rubber has decades of experience machining. Need a quote on some lugs and not sure … Continue reading
Differences Between Redco SPS-2000 and Synsteel
Redwood Plastics and Rubber offers two “pulp safe” plastics and while they might appear to be interchangeable or similar, they’re really not, and have both different properties and applications. In fact, it’s critically important to know where each should be used. SPS-2000 is meant to dissolve in the kraft mill chemical process and should be … Continue reading
Sawmill Application Solutions Video
“Seeing is believing” goes the old cliche and while we can talk about using plastics in sawmills, OSB, or planar mills, nothing beats seeing these solutions in action! Fortunately, Redwood Plastics and Rubber has created a short minute and a half video on YouTube showing a few of these applications in use. Highlighted in the … Continue reading
Redco 750 L- Channel For OSB Mills
One of our recent solutions has been replacing UHMW L-shaped channel for chain runs in OSB mills with Redwood Plastics and Rubber Redco 750 polyurethane. The issue is that the chain creates too much heat on the UHMW plastic warping it and causing it to bubble. Redco 750 bears more load and its properties appear … Continue reading
Trimmer Lug Design Template
Our estimators and sales people at Redwood Plastics and Rubber often receive request for quotes on UHMW trimmer or roller lugs. The issue is that customers often think the lugs they are using are ‘standard’ when this is not the case. In fact, our inventory holds hundreds of part numbers for different trimmer/roller lugs of … Continue reading
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
UHMW Yellow Wear Strip
While many maintenance managers know about UHMW U-channel for use with sawmill chain, less people seem to know that the same yellow/clean/reprocessed material that provides the channel with its excellent benefits is also available in simple, flat, wear strip. This typically comes in 250′ coils though it can be purchased in cut-to-size strips that cost … Continue reading
UHMW Extruded Channel Profiles
UHMW channel profiles are a very common sight at North American sawmills. The channel serves to reduce power requirements by making the chain slide easier. In addition, the soft channel reduces wear on the chain as it slides. This saves money immediately (in the lower power costs) and in the long-term with reduced chain wear. … Continue reading