Sierra debuts two-ram baler at ISRI2018

Sierra International Machinery LLC, Bakersfield, California, has debuted its REB4 two-ram baler at the ISRI Convention and Exposition (ISRI2018) April 17 in Las Vegas. ISRI2018 is organized by the Institute of Scrap Recycling Industries Inc., Washington.

The REB4 features Sierra’s patent pending dual-compression doors and uses 55 tons of force per door to push the material below the cutting knife and into the charging chamber, predensifying the material before the cycle begins. Sierra says this leads to a 20 to 40 percent increase in production.

“Our original two-rams are great machines, but we knew we could do better,” John Sacco, president and owner of Sierra, says. “We didn’t set out to just make a faster machine by adding more horsepower or more pump speed, we set out to create a machine that actually solved the dilemmas and frustrations that recyclers face every day, such as roll-back, shear shock and hydraulic shock. By eliminating these frustrations, we’ve increased the speed, production and efficiency.”

The REB4 two-ram baler is designed for greater input density in the charging chamber. When the doors are fully closed there is a 6-inch gap that requires shearing, reducing the area to be cut by 90 percent, Sierra says, allowing for an overall reduction of shear and hydraulic shock, as well as reducing stress on the blades and structure of the machine. This reduction in shearing also reduces energy cost, according to the company.

The dual-compression doors are designed to eliminate pinch points and allow for greater downward compression force on material without lid jamming. The design of the doors keeps the baler balanced without putting undue stress on the baler frame, Sierra says.

The REB4 was developed through years of experience in Sierra’s recycling facility and was designed to eliminate the common frustrations prevalent within the recycling industry, increase production and efficiency.

For more information about the REB4 two-ram baler, visit info.sierraintl.com/reb4-two-ram-baler-1.