Sawmill Helps Build The World’s Largest Freestanding Timber Structure

Colorado Timberframe has recently supplied sewn lumber to the world’s largest freestanding timberframe structure: for the “Ark Encounter” exhibit in Williamstown, Kentucky. The size of this boat is staggering: it used 3.1 million board feet of timber, with 1/3rd of it being pine-beetle reclaimed Englemann spruce. The volume of the Ark is equivalent to 500 semi-trailers, it has the capacity for 10,000 visitors and has a museum and 1,600 capacity restaurant on the top deck. The project cost over $100 million dollars and took a year and a half to build.

The workload was so intense that Colorado Timberframe had to hire additional staff, add a third shift, and go six days a week for a year. In addition, a personal sawmill had to be brought on site as 50% of the lumber required eventual resizing. More than 1 million visitors are expected the first year.

You can read the original article here.

Ark

 

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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 polyurethane product that is designed to dissolve with the chemicals in the kraft cooking process and also has the benefit of being the slickest of all polyurethane grades. But this is its only niche: to dissolve in kraftmills sparing them plastic contamination. People widely assume that SPS-2000 is metal detectable: but it is not metal detectable! It is an excellent product in the application with high wear properties, abrasion resistance, dimensional stability, and is resistant to most oils greases and solvents. It is available in sheet only 3/8″-3″ thick.

Redco Synsteel is metal detectable plastic and will trip the detectors. It is one of the most dimensionally-stable UHMW grades due to the metal content. However, unlike the SPS-2000, this product is not very slick and you need to be careful of its wear properties: this is literally metal impregnated sheet. Synsteel has twice the compressive strength of virgin UHMW; however, and is also attracted to magnets. The product is available in sheet form only from 3/8″-2″ thick.

If you’re interested in a quote or have some questions about this product feel free to contact Redwood Plastics.

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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:

  1. Size (length x width) of impact zone to be covered
  2. Maximum weight of lumber that may hit the Deadplate
  3. Maximum dimensions of lumber being processed
  4. Speed the lumber hits the impact zone (important!)

Based off that information the Redwood Plastics representative can figure out a design. Usually the Deadplate has a metal backing it is bonded to and is then bonded to a face of either steel or Redco 500 urethane – essentially creating a “sandwich”. The Redco 500 is the most popular except in cases of very large lumber being processed. The process from gathering information, to design, to quote is usually 24-36 hours.

If you’re interested in Redco Deadplate for your sawmill or planarmill, contact Redwood Plastics today.

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Seneca Sawmill: People First Sawmilling

Found an inspirational article from December 1st 2016 by “Pallet Enterprise”. The article highlights efforts by Seneca Sawmill to be “employee-focused” which has been a long held priority for the company. When you think about it, people are the most important asset in a sawmill. Machinery can only get you so far as motivated, happy, skilled, and productive workers are the true key to success and maximum production. Perhaps there is lesson for us all to learn from Seneca?

According to the article you can read in full here Seneca Sawmill was started in 1954 by Aaron Jones, a war veteran who wanted to contribute to his community through offering employment. His daughters who now run the company say Mr. Jones’ values were simple: good wage, good job, good working environment. Seneca’s corporate culture is strong and includes new employees even for unskilled jobs being paid a “family wage”. Employees who have served 25 years with the company are honored in a sort of “Hall of Fame” that gives recognition to their service.

Employees are provided with complimentary Thanksgiving turkeys and Christmas hams. The attempt is to threat the entire group of employees like family: they have movie nights at the local theater, distribute a company wide newsletter (filled with engaging information about what the employees have been up to) and have a large yearly company picnic that throws out all the stops including major giveaways of trips, electronics, outdoor gear, etc.

The focus of this all is to keep employees happy, motivated, and retained. In an era of a slowly improving economy skilled workers have places to go and “shopping oneself” can always lead to more money if you put your mind to it. Seneca does their best to retain by promoting from within, offering inter-company apprenticeships, and flexible shifting options. Not all of these options would make sense for sawmills but the core principle should: skilled, productive, sawmill employees are a sawmill’s single best resource and little initiatives sawmill managers can do to keep those individuals happy and retained will go along way in running a safe, productive, consistent sawmilling operation.

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Tuffkast 025 vs. 020 In Carriage Wheel Applications

Redwood Plastics offers multiple grades of their Redco Tuffkast product and recently a customer came to us asking about the differences between the grades. In this case, the customer had been using the standard Tuffkast 025 for carriage wheels and then noticed a special 020 grade just for carriage wheels existed. They were wondering if they had been using the wrong grade and if it was affecting their product life: a very fair question! The reality is that either grade will work but are not optimal under the same conditions. The Tuffkast 020 (carriage wheel version) was specifically formulated to take higher impact than the standard Tuffkast 025.

There are a few points to make here. Firstly, Tuffkast 025 already is one of the best impact-resistant materials on the market. It can function very well as huge marine bumpers for example. It was found, in certain applications, that the carriages took too hard of an impact and did manage to damage the wheels. However, to be more impact-resistant Tuffkast 020 is softer. This means it will wear quicker if the carriage wheel rails have defects and also at quick speeds it starts to wear faster than the 025.

To not over-complicate matters think of it like this: if you haven’t used Redco carriage wheels before and you don’t think you’re running them fast then go with Tuffkast 020 to start. If you find they’re wearing quicker, than try the standard 025. If you run your wheels fairly quickly (and want a slightly lower cost product) then go with the standard Tuffkast 025 as you will pay a slight premium for the 020.

If you have questions about the Redco Tuffkast carriage wheels please do not hesitate to contact us.

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FRP At Work In The Sawmill

When you get to the back of Redwood Plastic’s sawmill parts catalog you find a couple of interesting plastic products you might not have expected to see there: fiberglass reinforced plastic (FRP) products. FRP has a long history in many industries, its corrosion and impact resistant nature combined with low maintenance anti-slip properties makes it an ideal, if underused, fit in the modern sawmill. FRP replaces things like steel stair treads, catwalks, and other platforms. FRP can also be found in handrail systems and has multiple resin types for different demanding applications.

FRP is lightweight and easy to install. It does not conduct electricity, which makes it safer than metal grating. It is weatherproof and extremely durable. In short, FRP is a superior alternative to metal in many applications in the modern sawmill. So why are you not using it?

For more information on Redco FRP please contact us.

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Why Choose To ‘Swim With A Shark Fin’?

With every substantial investment people want to know “how does this benefit me?” and sawmill technology is the same. The Shark Fin Board Turning system has over 20 years of excellent performance in sawmills all over the world – from Canada, to Russia, to Brazil, to Australia, and throughout the USA. But why does a simple system of board flipping stars and shark-shaped pusher lugs keep getting installed in new mills? In the days of automatic grading, why is the Shark Fin still competitive? Here are just a few of the reasons sawmill managers keep the Shark Fins going:

1.) Simplicity – in this era of high-tech, when something breaks you probably need technical help to fix it. High-tech equipment also tends to use a lot of power. Shark Fin harnesses gravity alone: it doesn’t require any additional electricity to run. Parts are simple, and each machine is quoted as a rule with a spare parts kit. Redwood Plastics can supply any replacement parts needed.

2.) Stable Pricing – Worried about changes in cost? Worried that replacement parts you’ve purchased years ago may have increased sharply in price? The Shark Fin system due to manufacturing efficiencies has not raised in price in 15 years. How many other sawmill parts or equipment components can you say that about?

3.) Proven Track Record – Shark Fin, with only minor alterations, has been used since the mid 1990s and the system follows the rule “if it ain’t broke, don’t fix it.” In this era of high-tech solutions how long has your grading system been on the market?

4.) Cost-effective – With simplicity comes less cost. Did you know the average Shark Fin system costs around $30,000? And that’s for 2-3 graders. Newer electronic systems can cost much, much more than a simple Shark Fin can. And remember that the pricing formula has not changed in 15 years.

For more information, testimonials, and videos of the Shark Fin at work navigate to: www.sharkfinsystems.com

 

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Product Spotlight: Redco 750 Sprockets

Sprockets made of Redco 750 polyurethane have been a proven solution in sawmills for decades. But it isn’t a case of one size fits all: we get requests for sprockets for all sorts of shapes, sizes, pitches and chains. To be honest, not all of those orders can be filled by us. But in the interests of not wasting your time here are some of the basics you should know.

Our primary sprocket line is for 81x or H-78 sawmill chain. By far the most common sold are the “bolt on” version though the “Snap-It” sprocket is also available (for idler applications only) but that will need to be specified. If asked to provide a recommendation most reps will suggest the bolt-on version due to its added strength and classic appeal. After figuring the chain and sprocket type out, we need to know how many teeth you need for your sprocket along with the length-through-bore and bore size. The final major piece of information we need to know is if there is a keyway and if so, what are its dimensions? Note that unless we get that information explicitly told to us we will assume no keyway.

To some up what information we need to quote:

  • For what chain?
  • Idler or drive?
  • Snap-It or Bolt-On?
  • How many teeth?
  • Hub diameter?
  • Length through bore (LTB)?
  • Keyway dimensions?

Based off that information a Redwood Plastics representative can quote you the sprocket or let you know that’s a type that’s unavailable. These sprockets are supplied from molds, not machined, so if it’s not a size we have available tooling charges and increased delivery time may be necessary. For information on Redco sprockets click here.

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Sawmill Parts – Talking About Tolerances

We had a situation recently over at Redwood Plastics (the sponsor of this website) where a sawmill customer asked us to supply some kiln wheel bushings. A spec was given, the bushings passed quality control and were shipped. However, when received, we were told the bushings were 1mm off the spec. The problem here is that the customer had trusted our “regular” tolerances and “typical press fit and running clearance”. As it turned out, our customer had different tolerances in mind which were essentially unobtainable (+/-) 0.00″

When it comes to your sawmill parts it’s best to specify tolerances on any custom part you request. If not reasonable, the representative will let you know and suggest what is possible. What is important is to not trust “standard” or “typical” unless sure that this will work for you! Redwood Plastics representatives are well aware of what tolerances can be held on various sawmill parts and will help you to avoid disappointment and costly downtime. The more information you give the representative – the more they can help.

For information or assistance on your application contact us today.

Safe_Yellow_Kiln-238x300

 

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Product Spotlight: Trimmer Lugs

The humble trimmer lug is one of the simplest but most effective products Redwood Plastics offers. The soft, yet durable, UHMW plastic lasts a long time and is easier on the lumber. The trimmer lugs are fairly inexpensive, ranging from perhaps $10-$19 depending on size and quantity. The 1″ pin in the center is fairly standard the outer diameter and length can vary though. Please be sure to measure – your won’t be able to refund the trimmer lugs as they are a custom part! It is recommended that you keep at least 10 spare trimmer lugs in stock in case of damage or wear. As a custom machined part, a lead time of a couple weeks to deliver replacements is not a good thing.

See the diagram below which is an outline of the trimmer lug with the exception of the pin, this are the dimensions that need to be confirmed to quote the lugs.

trimmer-lug

 

 

 

 

 

 

 

 

 

If you’re interested in a quotation on trimmer lugs, contact Redwood Plastics here.

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