Gunther introduces heater technology
Gunther Hot Runner Systems Inc. of Buffalo Grove, Ill., is developing a new type of hot-runner manifold heater: thick-film heating elements that are steel plates and can be fixed on the outer surface of the manifold.
Gunther said the design provides even heat distribution.
Also in final development is a new heater technology for nozzles designed to fit nozzles for low voltage and 230 volts in the same small outer measurements.
New from the company is the SFT/DFT Micro Series nozzle, now available in 230 volts. It can achieve pitch centers of less than 9 millimeters. The nozzle is available as a thermal-gate nozzle system, or as a valve-gate system.
A special feature of Gunther's 230-volt single nozzle is a strengthened heater capacity in the nozzle head. The construction provides for a reduced thermal load of the plastic, enabling trouble-free melt of plastics at high temperatures, the firm said.
Gunther also is developing a 64-cavity hot-runner system for insert molding tiny parts, using glass-fiber-strengthened polyphenylene sulfide. The system uses 32 double nozzles with hard metal tips and a nozzle distance of 0.38 inch.
Tel. (847) 215-7874, fax (847) 215-7805, e-mail [email protected]
Durex heater offers clamping mechanism
A minicoil heater for injection nozzles, from Durex Industries, has a clamping band that allows the heating element to maintain full clamping force at higher temperatures.
The wedge-locking mechanism compensates for thermal expansion, unlike conventional cam-locking designs, according to the company in Cary, Ill.
A standard Allen wrench tightens the clamp.
Tel. (847) 639-5600, fax (847) 639-2199, e-mail [email protected]
Leak-halting flat die created for cast film
An internal flat-die design from Extrusion Dies Inc., originally developed to stop melt from leaking at the deckled portions of the die gap in extrusion coating, now is available for cast film.
Deckles are movable barriers at both ends of the die that allow operators to change product width. EDI's new system combines an internal deckle, which blocks flow using blades between the die lips, and an external deckle, which seals off the die gap from the outside.
``Because the external deckle is linked to the drive of the internal deckle, the units function as one system,'' said Sam Iuliano, manager of technical sales.
EDI of Chippewa Falls, Wis., claims external deckles give a more effective seal than internal deckles. But the internal deckle gives a more streamlined diversion of melt flow - especially important for cast film, the company said.
Tel. (715) 726-1201, fax (715) 726-2205, e-mail [email protected]
Contech system slits, stacks tough material
Contech of Goddard, Kan., is offering a roll-fed slitter/sheeter system specially designed to process difficult material.
The equipment can handle rolls weighing as much as 8,000 pounds, using a shaftless unwind to allow fast roll changes.
The material is slit, accumulated through controlled gravity loops to restrict stretching and cut using a gap shear cutter.
A gripper grabs the sheets and stacks them.
Tel. (800) 961-6449, fax (316) 722-2976.
Gala adds HPM line to demonstration lab
Underwater pelletizer maker Gala Industries Inc. has added a second extruder - an HPM line - to its customer demonstration facilities in Eagle Rock, Va.
Gala said the installation of the extruder, with a screw diameter of 21/2 inches, is the result of a collaboration between Gala and Chris Filos, president of Taylor's Industrial Services LLC. HPM in Mount Gilead, Ohio, is a division of Taylor's.
Gala will use the line for customer tests, at extrusion rates of about 350 pounds per hour.
Trendelkamp LP of Norcross, Ga., supplied a new Task 3L diverter/screen changer. The unit serves as a diverter valve during startup, then as a continuous screen changer during production. Gala also installed a water-box-bypass piping system and a manually adjustable pelletizer.
Tel. (540) 884-2589, (540) 884-2310.
Hamilton unveils recycling system
Hamilton Avtec Inc. of Mississauga, Ontario, offers an instant recycling system as a simple, economical way to blend regrind and virgin materials directly at the machine feedthroat.
Reground material is transferred from the granulator evacuation box, using an air amplifier or blower through a cyclone receiver, to the blending chamber.
Tel. (905) 568-1133, fax (905) 568-0785.
Orion 8 cap printer gives high resolution
Printing International of Aalter, Belgium, said its Orion machines are high-volume cap printers with photographic quality.
The Orion 8 can print any high-resolution image on all types of caps - as many as 80,000 caps per hour. Orion 6 can print 20,000 caps an hour.
Printing International mainly is targeting soft drink caps, but the company said the equipment also works on pharmaceutical, cosmetics and food packaging.
Tel. +32 (9) 325-8585, fax +32 (9) 325-8575, e-mail [email protected] printinginternational.com.
JDL shutoff valve stops resin leakage
JDL Enterprises Inc. of Sterling Heights, Mich., said its Rotary Resin Shutoff Valve III has new, high-heat seals to replace piston rings to prevent resin leakage.
The feature allows the shutoff valve to be used in conventional and structural foam applications, and gas-assisted molding.
The valve is priced at $5,500.
Tel. (586) 977-8863, fax (586) 977-9166, e-mail [email protected]
Hunkar touts system for `smart' inspection
Cincinnati-based Hunkar Laboratories Inc. said its Smart-Q-See part inspection system can link to eight cameras to check part counts instantly and rapidly verify the part configuration in packages.
The inspection product can be used as a stand-alone system, as a module with Hunkar's Smart Data Acquisition and control systems, or with most existing plantwide monitoring systems.
The system handles a variety of carton sizes and internal unit counts, on multiple lines, without any human intervention.
Any cartons with packaging errors are diverted from the main conveyor.
The price starts at $9,995, which includes software and one camera, a video interface for as many as eight cameras and an input/output relay interface for as many as eight relays.
Tel. (513) 272-1010, fax (513) 272-0013, e-mail [email protected]