Arburg Inc. has introduced a new version of its 220-ton press with increased tie bar spacing and bigger platens. Called the Allrounder 520, the 220-ton press has the same machine footprint as the 220-ton model 470, but boasts bigger platens, with almost 201/2 inches between tie bars instead of 181/2 inches. Maximum shot capacity is 12.71 ounces.
The Newington, Conn., company announced the Allrounder 520 in May.
The injection molding machine is designed to offer mold-handling capability compatible with the mold base sizes commonly used in domestic machines of that clamp tonnage. The 520 is available with Arburg's M, MB, C and V series.
Arburg also announced the fifth generation of its original, 40-ton toggle press, called Allrounder 221M. The 221M, with Arburg's closed-loop Multronica microprocessor-based controller, replaces the 221K, which had a discrete logic controller.
Quick Information Card No. 66
Van Dorn expands its controller line
Van Dorn Demag Corp. has expanded its Pathfinder controller line, with the new Pathfinder 4500.
The Strongsville, Ohio-based company introduced the first two models, Pathfinder 1000 and Pathfinder 2500, at NPE '94 in Chicago.
All of the controllers are available on the Van Dorn Demag HT Series and HP Series machines, the company said.
Pathfinder 4500 is geared to molders who require a more automated molding process or who use systems continuously to improve their operation.
The line incorporates features of the 1000 and 2500, enhances some of them, and makes standard the Society of the Plastics Industry Inc.'s communication protocols covering auxiliary machines and host computer, and quality systems such as statistical process control.
Quick Information Card No. 67
Extruder screw helps machine productivity
The Manchester, Mich.-based Plastics Machinery Division of Johnson Controls Inc. has released a documented study demonstrating significant improvements in productivity for Uniloy reciprocating screw blow molding machines upgraded with a Uniloy high-efficiency extruder screw.
Mark Jenkins, parts operations manager, said the study shows increases of 8-10 percent in machine output and reductions in extruder energy costs of 5 percent and 10 percent.
Reports also show reductions in energy costs for machine heats, he said.
According to Milwaukee-based Johnson Controls, a blow molder can pay for the cost of the $6,600 screw in 18 working days, because of additional sales volume and reduced energy costs.
Quick Information Card No. 68