Equipment Report

Crushtek LLC, Norcross, Ga., demonstrated its ultra-lightweight, easily transportable Streettrack™ unit at this spring’s 30th Annual National Association of Demolition Contractors (NADC) Annual Convention, held in Orlando, Fla.

The company was one of just two exhibitors with crushers at the show. According to Crushtek, the Streettrack is capable of produce up to 130 tons per hour of recycled materials from even the most contaminated construction debris, including concrete with heavy rebar.

The machine apparently impressed attendees, especially Ron King, president of Three Kings Environmental Inc., Battle Ground, Wash. The environmental, demolition and recycling contractor decided to purchase the demo Streettrack right off the NADC show floor. Says King, "We went to the convention (NADC) with the hopes that it would open our eyes to new equipment and technology, and that’s what we found with Crushtek’s Streettrack. It’s lightweight, compact, reasonably priced and fits well with the space limitations we see in many of our demolition and recycle jobs."

The Crushtek recycling and demolition product line consists of five sizes of impact crushers with production capacities ranging from 130 to 500 tons per hour. There are also four jaw crushers with production capacities ranging from 150 to 350 tons per hour, and two screen units producing from 300 to 400 tons per hour.

Continental Biomass Industries Inc. (CBI), Newton, N.H., unveiled the Annihilator – dubbed by the company as MOAS (Mother of All Shredders)—at the main aisle of WasteExpo in New Orleans last month.

"At just over 100,000 pounds and with a rotor that measures over 10 feet in length and 42 inches in diameter of 6-inch thick forged steel, the Annihilator is designed as a primary shredder with the capacity to process approximately 100 tons per hour of the nastiest C&D waste," states Anders Ragnarsson, CBI president.

"We are determined to maintain our reputation as the heavyweight champion in grinding, and we know we can’t do that unless we are always working to stay one step ahead of our competition. This system is engineered, designed and built to keep us there for years to come."

According to company officials, one of the systems has already been purchased by Waste Management Inc. for a facility in Massachusetts, and another by F&G Recycling in Windsor, Conn.

Features of the system include PLC controls, a digital display with system diagnostics, jammed rotor detection system with auto-reverse, an automatic material purge cycle and hydraulic temperature and level monitoring.

The shredding chamber measures 8 feet wide by 10 feet and 4 inches long to accommodate large volumes of bulky materials (tires, rugs, mattresses, etc.). The chamber is fashioned of high-strength steel and lined with Hardox-400 wear-resistant material.

The 20,000-pound rotor is comprised of a 6-inch thick forged steel drum and holds 42 hammers. The hammers are each 4.5 inches wide, weigh 95 pounds and feature bolt-on reversible tips for quick replacement.

The system is available in stationary or portable configurations, with electric or diesel power plants that can range from 630 hp to more than 1,000 hp, depending on client needs and application requirements.

Diamond Z Manufacturing, Caldwell, Idaho, has introduced a horizontal grinding machine called the DZH 7000.

The horizontal grinder, the first for the company, was introduced to attendees of the WasteExpo show earlier this month in New Orleans. According to the company, the DZH 7000 is ideal for large-scale wood processing applications.

A Diamond Z news release refers to the new model as "a portable, high-capacity, low-maintenance horizontal grinder designed for precision grinding of any material including wood debris, brush, limbs, logs, stumps and construction materials."

A patent-pending feed roller design raises past center to the safety lock position for easy maintenance and screen replacement times of less than 20 minutes, according to the company. The model also features what Diamond Z calls an "aggressive variable speed dual drive feed chain for the toughest material [and] the industry’s first patent-pending hydraulic rod puller for quick access."

The machine can process more than 500 yards of material per hour, according to Diamond Z, while also reducing maintenance downtime, thus increasing net operating profits for operators.

Brokk, a long-time supplier of electric-powered remote controlled confined space demolition machines, has now entered the market with its first fully remote controlled, diesel driven model, the Brokk 330 diesel.

Diesel power and a radio control box allow the machine to be completely free of any cables, ensuring complete mobility of the machine around all projects. The machine also has a manageable footprint of 59 inches wide, 60 inches high and just over 12-1/2 feet long.

Brokk uses a four cylinder, water cooled, 4-stroke diesel engine as the power base. The Brokk 330 diesel weighs 9,000 pounds and carries a 1,250 foot-pound hydraulic hammer.

More information on Brokk products is available at the company’s Web site at www.brokkinc.com.