Morbark Unleashes a Wearwolf

Knife-edged Wearwolf insert is designed to process palm, frozen wood and produce chips.

May 21, 2013
CDR Staff
Equipment & Products

Morbark, Inc., Winn, Mich., has introduced its Wearwolf™ insert, the newest addition to its line of inserts for industrial grinders. The company introduced and explained the product at its 2013 Demo Days event, held in Winn in mid-May.

With heat-treated, knife-like edges on a solid, forged-steel insert blank, the Wearwolf is designed to cut material rather than beating it into mulch. Customers can thus make chips out of hard and soft woods without needing another machine, says Morbark.

The Wearwolf’s greatest advantage may be in its handling of stringy material such as palm, according to Morbark, which says its customers had been asking for a way to break down palm waste and other stringy material effectively.

“Morbark has a tradition of listening to our customers and addressing their needs,” says Dave Daymon Jr., Morbark Dealer Parts Sales Lead. “We met with our engineers and our vendors to design a new insert to help our customers break down palm, and we came up with the Wearwolf. The Wearwolf chops the palm, so it doesn’t wrap around the hammermill of the grinder like it does when using standard inserts.”

In customer tests, says Morbark, the Wearwolf not only efficiently chopped and broke down palm waste; when processing hardwood or soft woods, it also provided a denser end product, yielding two to three additional tons per load than a standard insert. Because of the way its knife edge is designed, the Wearwolf also handles frozen wood.

At its C&D processing facility in West Palm Beach, Fla., Sun Recycling says it saw a 30 percent increase in production, according to facility manager Paul Valenti. “We never once went into reverse with the Morbark Wearwolf inserts,” adds Valenti. “They save us maintenance time, downtime and allow us to increase our overall production.”

The Wearwolf is made of a forged material designed to be stronger, more durable and to score better on a Rockwell tester than a casted material or tooled steel, says Morbark.

The Wearwolf insert is available for Morbark tub grinders and Wood Hog horizontal grinders. Video of the Wearwolf breaking down palm can be viewed at

Morbark is maker of industrial grinders and chippers for the forestry, biomass, sawmill and wood reduction and recycling industries, as well as brush chippers and stump grinders for the tree care market.