Clearing for Cash

October 16, 2018

International Forest Industries
August/September, Issue 64, Page 30

The concept of processing waste for extra revenue is not a new concept but the manufacturers in this year’s Shredders and Grinders report are taking things to a whole new level. For the first time, some of the product descriptions sound more like those associated with the more refined range of chipper units. Peterson Pacific Corp, a subsidiary of Astec Industries is a premiere manufacturer of grinders, disc and drum chippers, flails, screens, stackers and blower trucks. A history of innovation and reliable manufacturing has established a reputation for equipment of the highest quality.

The application of shredding and grinding technology to waste materials is delivering welcome additional revenue streams

While virtually all manufacturing is done in house at the factory in Eugene, Oregon, Peterson maintains a worldwide system of dealers and representatives to ensure customers get the best service possible regardless of where they’re from.

Superior grinding solutions

Peterson offers a full-line of horizontal grinders from 580-1200 hp, in both diesel and electric applications to suit varied grinding needs. The new D-series grinders offer industry leading features and innovations that allow production of the finest mulch at the lowest cost per tonne.

Peterson’s powerful up-turn three-stage grinding process provides better fracturing of material and a more consistent product, delivering a more marketable product.

Once the feed material has been fractured, Peterson horizontal grinders have the almost infinite tooling options from bits to grates in hex, round, square and rectangle openings. In addition, the four-piece grate system that permits customers to mix and match to achieve the desired product; this tooling works well in both the pre-grind and regrind steps.

The Peterson 4710D regrinding

“Our Adaptive Feed System helps with consistent productivity by maintaining near constant material flow to the grind chamber,” the manufacturer said.

Machine protection from tramp metal is a key feature of Peterson horizontal grinders. Peterson’s patented Impact Release System’s air bags provide uniform grinding and protection from contaminated feedstock, a feature unique to Peterson grinders.

A secondary line of defense, is the Impact Cushion System that utilizes urethane cushions, while shear pins help protect the mill from catastrophic damage in the event of a severe impact from contaminants in the feedstock.

Peterson horizontal grinders are available in wheeled, tracked, or fixed stationary applications depending on the needs of the job site. An optional tow dolly is available for some tracked models allowing for easy transportation without the need for a[dditional transport equipment].


In an age where machine owners want real-time data about their machines, Peterson has developed Peterson+ to enhance the customer experience with Peterson products. Peterson+ was designed from the ground up to enable an integrated team to work together by sharing machine data; helping provide customers the information they need to ensure successful grinding and chipping operations.

Peterson+ is a unique communication network and information system connecting Peterson machines, customers and dealers with Peterson’s cloud-based machine monitoring, diagnostics and information systems,” said Michael Spreadbury, Peterson’s Marketing Manager.

The 4710D double grinding

“The system will help improve customer profitability through higher machine utilization, productivity and increased uptime.”

Peterson+ equipped machines, such as Peterson’s 3310 drum chipper and 4710D horizontal grinder, provide streaming machine data, including GPS locator. Customers can have live access to the machine’s on-board display and operating information on their office computer, laptop or mobile phone.

Statistical historical data can also be used to track important information such as fuel consumption; engine rpm’s and oil temperatures giving owners and operators better efficiency, increasing profits through productivity.

The wireless display feature uses a local area network to allow machine operators to use their smart phone as a wireless display mounted in an excavator, loader, or control booth.

Peterson+ also makes a great troubleshooting tool. The operator, dealer, and Peterson technicians can all see what is going on with the machine’s control system — similar to having a technician on-site working through a potential problem.

Machine documentation, parts information, and support services are also made easily accessible through the Peterson+ portal via Peterson’s website.

The 4710D working on compost

Peterson 4710D Horizontal Grinder

Peterson’s latest grinder is the popular 4710D. This machine is designed for high-volume producers with very demanding end-product specifications. The 4710D is powered by a Tier IV Caterpillar C18 engine rated at 755 hp (563 kW). A Tier II, 765 hp (570 kW) engine is also available.

Boasting 18 in (46 cm) of ground clearance — this model is particularly suited for land clearing operations or other applications where mobility and frequent moving is desired.

Peterson’s three-stage grinding process with an up-turning rotor and large grate area enables the 4710D to produce materials to exact specifications. Quick change multiple grate system makes it easy to customize grate configurations to produce a wide variety of finished materials. Grates are removed through an access door on the side wall.