SSI Spotlight: Plastics & The Uni-Shear® SR500

2017 07 08

This month we take a look at a Plastic recycling facility located in the USA to learn how they use their Uni-Shear® SR500 to their advantage. "A couple key elements on this shredder were the new design features we recognized over every other shredder we've had in use prior," said Mark regarding the SR500. "The size of the hopper, the size of the rotor, the cutting angle of the cutters and the efficiencies that those elements provided, justified an upgrade to this particular unit." Mark is using the SR500 to reduce the size of bulky plastics. At his facility, he takes a wide variety of unwanted plastics and recycles them into premium grade resins. Click here to learn about the evolution of the SR500 shredder and the making of this machine.

SSI Technology - Electric Shredder Drive

2017 07 08

Learn more about SSI's most widely used shredder system and the technology behind it.

Customer Spotlight - Tire Application

2017 07 08

Monte Niemi purchased his first SSI shredder back in 1988 for his recycling company in East Bethel, MN. Later moving to a larger facility in Isanti, MN and with the purchase of additional shredders in 1999 and 2016, Niemi’s First State Tire’s business has grown from processing a million tires a year to over three times that.
What we've learned essentially through the 30 years of running equipment is that you need something that has a good support staff, you have to have something that’s well designed in the first place, you have to have something that’s not going to self-destruct… ​When we came in contact with [the] people out in Oregon that made the SSI shredders they had equipment that made sense and we've been very successful with it,
said Niemi.

First State Tire recycles tires from passenger vehicles, trucks, and certain recreational vehicles. Tires that are no longer considered road worthy are shredded in a two-pass system that creates a material called, tire derived aggregate or TDA. This engineered aggregate, which is environmentally friendly, is used for civil engineering applications such as roadway bedding, embankment support, stormwater management, and more.

SSI kind of spoiled me by saying what are you asking for? What do you need? Let’s try and build it… To have a company you can go to and say here’s my bottleneck, here’s what I need to fix… and the company is willing to listen and try to make it happen is the night and day difference between why we’re buying this equipment versus somebody else’s
said Niemi.

Niemi has the distinction of being one of the oldest continuously operating users of SSI equipment. By his estimate he has shredded over 50 million tires and he has no plans of stopping.

What We Do

2017 07 08


SSI's first industrial shredderSSI Shredding Systems, Inc. was formed in January 1980 in Wilsonville, Oregon when the idea of mobile shredders was new. The company’s initial product offering was a self-contained mobile shredder used to provide contract shredding services to industrial and government organizations. Use of this service was instrumental in developing the military’s widespread use of mobile shredding. Flexibility was key in SSI's early development. Our customers frequently came to us with unique problems, which compelled us to concentrate on engineering new solutions rather than off-the-shelf technology. The old idea that there was one solution for all, just wouldn't work in this market. Our customers needed a choice of options. As the processing needs of SSI's customers grew, the demand for shear shredders expanded from temporary use to a need for dedicated systems. To address customers’ changing requirements, SSI began engineering and manufacturing a full line of rotary shear shredding systems. The manufacturing experience as well as the operations and service expertise gained in the mobile shredding business positioned SSI to effectively meet customer needs and develop new market opportunities.


In 1988, SSI focused its expansion efforts on the Pacific Rim and has since provided several hundred installations in Japan alone. Our customer solutions continue to expand around the globe. SSI has shredding machinery and integrated systems installed spanning all 7 continents and in many countries. Some of our experiences include:
Processing solid waste in Antarctica Medical waste in Africa Copper recycling in Brazil Waste-to-Energy in Costa Rica
Pulp & Paper processing in China Metal recycling in Turkey Tire recycling across North America and Western Europe Today, SSI has become a worldwide industry leader in the design and manufacture of one-, two-, and four-shaft shredders, primary reducers and high density compaction systems to meet the diverse needs of industrial, municipal, and hazardous environments.


Technological advancements combined with depleting supplies of natural resources have made it now less expensive to reclaim useful materials from used products than to harvest raw materials from the earth. Items such as used water and soda bottles can be converted into textiles and carpet. Old, worn out car tires can be converted into mats, sports surfacing and roadways. Obsolete electronics and children’s toys can be shredded, processed in an automated recovery system, and converted into materials that are used to make similar products over and over again. SSI recognizes that its continued contribution to a sound environment lies not only in recycling and waste treatment, but in helping industry maximize production efficiencies and minimize scrap and waste by-products. SSI is committed to the ongoing development of size reduction solutions for industry as it responds to the dynamics of global environmental, regulatory and economic demands. Shredding is more than just a way to downsize waste for disposal. It is the first step in almost any recycling or material reclamation process. It is one way to help sustain our planet and way of life.


Leading worldwide supplier of size reduction technology: Shredders (1, 2, and 4 shaft designs) Primary Reducers Pre-Load Compactors Standard and Custom Products Integrated Systems Well established Asian presence Average installation size 200HP/149kw Multiple manufacturing facilities located in Wilsonville, Oregon USA Complete in-house manufacturing capabilities On-site demonstration testing to permit first-hand solution validation Comprehensive parts & service to support long-term customer success