Plastics News senior reporter Bill Bregar, intern Rachel Wenger and copy editor Kathleen Cammarata reported the following items from Plastics Fair Cleveland, held June 23-25. The Cleveland show attracted 4,132 visitors and 1,703 exhibitors.
Hunkar introduces pressure controller
Hunkar Laboratories Inc. of Cincinnati introduced the Class-Meter Shot Stopper cavity pressure transfer control machine.
The cavity pressure controller connects to any machine of any age to provide transfer capability based on pressure inside the mold. The unit compensates for material viscosity fluctuations, reduces overshooting and undershooting, improves dimensional stability, provides consistent weights and protects complex molds from overpacking, the company said.
Tel. (513) 272-1010, fax (513) 272-0013.
Van Dorn Demag HTs pick Wittman robots
Van Dorn Demag Corp. is supplying its HT injection presses with an optional sprue-picker robot from Wittmann Robot & Automation Systems Inc. of Torrington, Conn.
Van Dorn Demag is offering the Wittmann W 70 robot as an option on HT machines with a Pathfinder 3000 or 5000 controller.
The Pathfinder controller also runs the robot. HT presses come in clamping forces from 85-230 tons.
Van Dorn Demag builds the HT presses at its Strongsville, Ohio, headquarters plant.
Wittmann already supplies robots as an option on the Van Dorn Demag ET series press, built in Wiehe, Germany.
Tel. (440) 876-8960, fax (440) 876-4383.
Polychem develops purging compound
Polychem USA Inc. of Foxboro, Mass., has developed a universal purging compound for extrusion and injection molding equipment.
The Multi-Purge material mechanically scours the screw and barrel, loosening and removing degraded material and color specks from barrel walls, screw flights and pitted and cracked areas of the equipment.
Tel. (508) 543-2490, fax (508) 543-9788.
Extruder effective in confined spaces
Davis-Standard Corp. of Pawcatuck, Conn., introduced several new Killion products for pipe, profile and tubing extrusion, including a KLJ coextruder, a traveling saw and a belt puller/cutter.
The KLJ three-quarter-inch extruder works well for coextrusion in a confined space, Davis-Standard said. It boasts a small footprint and adjustable height.
The Killion DDS heavy-duty saw is mounted on a welded, tubular steel frame. The saw can cut pipe or tubing to 5 inches in diameter. It comes with a carbide-tipped, completely guarded blade measuring 18 inches in diameter. The table has a maximum travel length of 39 inches.
The DSP series of puller/cutters comes in two standard configurations, measured by belt width and length. The DSP-26 is 4 inches wide by 26 inches long; the DSP-30 measures 6 inches by 30 inches. Both have digital drives, but can be upgraded to alternating-current vector and servo drives.
Tel. (860) 599-1010, fax (860) 599-0476.
Wentworth sets up L.A. Cleveland sites
Wentworth Capital, which specializes in financing plastics machinery purchases, recently opened offices in several cities, including Cleveland.
Wentworth named George Muhoray as marketing officer. He manages the Cleveland-area office, in the suburb of Rocky River.
Wentworth Capital, based in Portsmouth, N.H., provides financing for new and used processing equipment, including primary machines, auxiliary equipment, robots and molds. The Cleveland office opened earlier this year.
President Samuel H. Smith III said Wentworth just opened a Los Angeles office July 1. Other recently opened sites include Philadelphia and Charlotte, N.C. In Canada, the firm recently opened offices in each province, under the name Charter Canada.
Tel. (603) 433-4310, fax (603) 433-4317.
Mini vibration welder offered by Branson
Branson Ultrasonics Corp. of Danbury, Conn., introduced the Model Mini II vibration welder.
The product has a footprint of 2 feet by 4 feet. Applications engineer Bruce Stott said the new welder has a user-friendly touch screen and is compact enough to be mounted on casters and moved next to an injection molding machine or work cell.
Tel. (203) 796-0349, fax (203) 796-9838.
Kona Dynisco CV tips allow reverse gating
Kona Dynisco Hot Runner Group of Gloucester, Mass., has created controlled vestige CV tips for a reverse gating technique used to hide gate marks on injection molded parts.
CV tips allow precise temperature control in the gate area, helping to eliminate cosmetic defects. The tips can save material, reduce scrap and allow for fast, efficient color changes, the firm said. Other benefits include reduced flow length vs. wall thickness ratio; lower injection pressure; more-uniform distribution; improved dimensional stability; and reduced warpage.
Tel. (978) 281-3810, fax (978) 281-5882.
New ESI cut-off saw cuts operating costs
Extrusion Services Inc. of Akron, Ohio, introduced a medium-duty traveling cut-off saw. The company makes automated downstream equipment for plastic and rubber extruded products.
The traveling cut-off saw features an air-actuated, down-cut operation designed to reduce maintenance and operating costs. The saw is equipped with a 20-inch-diameter blade and 5-horsepower motor and can cut 12 inches wide and 21/2 inches high.
Tel. (330) 630-1861, fax (330) 630-1862.
Colortronic exhibits digital dosing system
Auxiliary equipment manufacturer Colortronic Inc. displayed its Colorblend Quick Duo.
The new product is a synchronized, digital system designed to dose two plastic additives or regrind precisely at the same time on any plastics processing machine. Colorblend's modular design allows for easy material changeovers, and quick disconnects from one or both additive stations, the company said.
Quick Duo is mounted on the throat of the processing machine. Different-size adapters are available to accommodate hopper-loader configurations.
The product evolved from Colortronic's Colorblend Standard and Colorblend Quick additive feeders, which the firm claims can feed as little as 0.1 gram per cycle.
Tel. (609) 374-9200, fax (609) 374-9311.
Comet presents compact controller
Comet Automation Systems Inc. of Dayton, Ohio, showed a new conveying controller, for use with any of its loaders.
The unit, made by Total Control Products Inc. of Melrose Park, Ill., combines a programmable logic controller and a touch screen in one compact package. It measures just 11 inches by 14 inches.
Tel. (937) 298-9166, fax (937) 298-9069.