ReTech grinder shreds self-feeding material
Vecoplan LLC of Archdale, N.C., said its ReTech RG62K FF rotary grinder is designed to shred flexible materials that tend to ``self-feed,'' such as film and synthetic fibers being reclaimed for extrusion.
The grinder is equipped with Vecoplan's SureCut cutting system, which features a rotor with a built-in, two-stage auxiliary reduction, reinforced close-tolerance screen and a ``wedge'' fixed counter knife. The hopper opening is 63 inches by 80 inches. The rotor speed is 150 revolutions per minute, powered by a 150-horsepower motor. Throughput ranges from 1,000-6,000 pounds per hour.
Tel. (336) 861-6070, fax (336) 861-4329, e-mail [email protected] llc.com.
Maguire's LPD 200 dries 200 lbs. an hour
Maguire Products Inc. said its largest low-pressure dryer is aimed at users of large injection presses or medium-throughput blow molders or extruders.
The LPD 200 dryer is nearly 6 feet high. It can dry up to 200 pounds of material an hour. With double the capacity of the next-largest LPD dryer, the unit is only 10 inches taller and 4 inches wider.
Because of a simpler design, smaller batch size and shorter drying cycle, the LPD can be scaled up without the major increase in size and weight of blowers and other components that a dehumidifying dryer needs, according to the Aston, Pa., firm.
The low-pressure dryer technology also uses less energy than a standard dryer, Maguire said. Instead of heating the resin and flowing dry air over to slowly draw out moisture, the LPD uses vacuum to pull moisture from within the pellets. The LPD also carries heating and vacuum drying at the same time, in separate stations, turning a batch process into a continuous one that keeps pace with the throughput demands of a processing machine.
Tel. (888) 459-2412, fax (610) 459-2700.
Controller measures 6 temperature zones
Budzar Industries Inc. has designed a multizone hot-water temperature controller, with up to six independent zones.
The control unit has its own controls, pumps, heater and cooling modes. An independent zone control maximizes production by operating each zone at an independent set point.
Budzar of Willoughby, Ohio, also has designed a multizone controller with quick-change removable sliding trays. If one component fails, the operator disconnects it then removes the tray and slides in a new one, all in less than a minute and without stopping the process. The old component can be repaired at the plant, or can returned to Budzar for an overnight restoration to factory specifications.
Also new from Budzar is the ICE CT-M series of cooling towers. An induced draft design ensures that a low-static, low-energy fan will do the job, avoiding the water leaks that can happen in forced-draft towers. The water is pumped to the top of the tower cell, then gravity takes over.
Tel. (440) 918-0505.
Sterling announces new equipment, rep
Milwaukee-based Sterling Inc. said its STK water treatment system provides chemical-free treatment of cooling tower and process water with no magnets, no rods and no high voltage.
STK recirculates cooling water through a patented system that removes carbonate scale, halts biological activity and controls corrosion.
In other news, Sterling named D&A Associates as its sales agency covering the New England region, including Maine, Rhode Island, Massachusetts, New Hampshire, Vermont and Connecticut.
Sterling also introduced the Sterlco Royal series optical disc units, a multizone temperature controller for use with molds for the optical disc market.
Also, Sterling's Ball & Jewell division has added the BP series of strand pelletizers to its line of size-reduction equipment. Features include quick and easy clean-out, long production cycles and automatic running, with little need for operator attention.
The BP pelletizers come with in-feed widths of 6-32 inches, strand capacities of 30-180, and throughputs of up to 12,000 pounds an hour. A variety of rotor knives are available, including helical cutter, bolt-on knives and wedge held knives.
Tel. (414) 354-0970, fax (414) 354-6421.
Firm works to stop dog bone crumbling
Kansas Plastics Co. was having problems with a part, so it called Kice Industries Inc. But this was no typical project - the issue was edible doggie bones.
Kansas Plastics, a custom molder in Wellington, Kan., molds the wheat-based bones as a side product. The material is essentially pelletized flour, run on an injection molding machine. The pellets have properties similar to plastic pellets.
But fines were causing the bones to crumble.
Kice determined that fines could be cleaned from the pellets using one of its 6DT4 Multi-Aspirators, modified to mount directly to the throat of the injection press. The Multi-Aspirator uses the principle of terminal velocity to vacuum fines up and away from the pellets, so cleaned pellets then drop right through. The fines are conveyed to a Kice Cyclone Collector, then into a hopper for disposal.
The dog bone system required one modification, however. Because the blow of material was continuous, sometimes causing it to fill completely, Kice designed a small hopper to sit between the aspirator and the injection press. When a level sensor in the hopper showed it was full, the flow slowed to allow proper cleaning.
Now Rover is happy. But it didn't stop with dog bones. Kansas Plastics decided to move the Kice system to one of its other molding machines, making a drain pan that also had problems with fines. The pans are made of glass-filled polyester that has some regrind. The Kice equipment worked.
Kice Industries is based in Wichita, Kan.
Tel. (316) 744-7151, fax (316) 744-7355.
Stapla Ultrasonics offers welding system
Stapla Ultrasonics Corp.'s K1 plastic welding system was designed for a range of industries, including automotive, appliance, medical, electronics and toys.
The K1 combines precision with the flexibility to control time, energy and both absolute and relative weld depth. The user-friendly machine has a key switch for picking the operating level, an indexed exchange system for welding tools and self-calibrating force measurement.
An automatic data adjustment feature assures repetitive welding results, according to the company in Wilmington, Mass. Other features include self-diagnostics and automatic tool protection.
Stapla also introduced a controller for welding systems that features simple, one-botton operation. The USC Controller is designed for use with the Stapla K series and C series welders.
Tel. (978) 658-9400, fax (978) 658-6550, e-mail [email protected]