Please visit: Technoject Machinery Corp./Heitec
Heitec Hot Runner Systems North American Sales and Service
310 Healey Rd. Unit B
Bolton, ON L7E 5C1 CA
Supplies standard and custom hot-runner components and hot halves, specializing in micro nozzles, edge gate nozzles and miniature valve gate nozzles. Heitec hot-runner system uses 230 v heating elements.
Minimum center-to-center spacing starting at 0.177 in. (4.5 mm) between individually controlled hot tip nozzles and 0.228 in.(5.8mm) for valve gate nozzles. Starline Edge Gate Nozzles provide direct edge gates with up to 8 tips per nozzle in a round or linear pattern. Engineering resins can also be processed with direct edge gates.
Free Flow Valve Gate Nozzles ensure homogenous fill without melt splitting and knit lines. Ideal for optical articles or cosmetic articles. Electric, hydraulic or pneumatic actuations are available. Servomotor actuation features control over closing speeds, timing offsets, force limits etc...
Tip extensions now offered on 230 v hot-runner nozzles that are capable of processing high-temperature engineering resins. Typical applications include recessed gate locations and inside gated covers. Tip lengths and shapes can be customized to suit the recess shape. Tips available as screw types for in-press servicing.
At the K 2016 fair in Dusseldorf next month, Ewikon (U.S. office in Rockford, Ill.) will show off one of its highlights of Fakuma 2015, its new “micro-manifold” (shown here) for high-cavitation medical and closure applications (see Jan. ’16 Close Up). The standard main manifold is on one level; each of its drops feeds a balanced micro-manifold on a second level with four screwed-in, heat-conductive tip inserts, each having a flow-channel diameter of 3 mm and a melt seal at the gate.
There’s no letup in development of sophisticated hot-runner nozzles and controls. Here’s news in these and other tooling products at the show.
Electric drive programs valve-pin movements.
Novelties included variable-pitch manifolds, mold servo controls, 3D printed plastic mold inserts, and flexible/formable cooling channels.
New nozzles promise better part appearance and strength.
Molds and tooling were a big topic at the Molding 2013 Conference in New Orleans this January.
Most of the emphasis is on valve gating and on doing more in less space. Other highlights include standardized mold components, some impressive feats of moldmaking creativity, and advances in mold simulation.
Smallest flat line nozzle allows cavity spacing of 5.5 mm.
A U.S. custom injection molder that’s hiring?
WEB EXCLUSIVE: Star-Line edge-gate nozzles with one to eight tips now come in a two-piece design with a body and crown.
If a better machine can help your company beat challenging economic conditions, you’ll probably find it at NPE. And finding it will be easier, thanks to our editors’ efforts to sift out of some 2000 exhibits the most significant news in injection and blow molding, extrusion, compounding, and thermoforming.
The accepted ground rule for balancing melt flow in multi-cavity injection molds is to achieve equal flow distance from the injection point to each cavity.
A new single valve-gate nozzle uses mechanical actuation that takes up very little space in the mold.
Valve gating and side gating are combined in a new compact hot-runner system from Heitec in Germany (represented here by Technoject Machinery Corp., Bolton, Ont.). It's designed for molding precision medical and optical components, including small tubes or long, thin-walled cartridges where gate location is critical.
New nozzles in which every component can be replaced while they are mounted in the press were introduced by Technoject Machinery Corp., Bolton, Ont.
Electrically driven valve pins, a low-cost alternative to valve-gating, mold-mounted temperature controllers, and new components for fast color changes are some of a host of new components and systems unveiled at the giant NPE 2006 show in Chicago this past June. (Some brand-new introductions since the show are also included in this report.) The news includes runnerless products aimed at everything from micromolding to shot weights up to 17.4 lb.
Thermal and mechanical testers, color and appearance sensors, vision inspection devices and CMMs—the NPE had them all in more compact, economical, and easy-to-use models.
Energy-saving all-electric machines will continue to be a big draw at NPE, where new designs or upgraded models will be found in virtually every press maker’s booth.
The diversity of electric machines will be on display at this year’s show, with several new all-electric versions in direct-drive and belt-driven versions.