Realize time and cost saving benefits from the use of integrated systems when compared to traditional hot runner manufacturing methods.Hot runner molds are inherently complex. They have to bring together time, temperature, flow and the pressure of plastics operating on rapid cycles. The mold needed to accomplish this can be complicated, but with straightforward planning, the process of building a

Quality, performance, maintenance and flexibility are driving today’s hot runner technology.Performance requirements for hot runners are becoming more demanding as technology advances and applications grow in complexity. Increased resin pricing and the need for automation are making direct gating of even the smallest parts a necessity. Customers expect good quality parts from every cavity&md

Using aluminum tooling instead of traditional tools steels reduces cycle time and costs, but requires up-front, open communications between moldmaker, molder, material supplier and hot runner manifold supplier.Moldmakers and molders looking to find an alternative to traditional tool steels should seriously consider using aluminum. Aluminum tooling offers a myriad of benefits: it is easier to cut a

A new source of internally heated hot-runner nozzles that eliminate the risk of external heater-wire damage is Melt Design Inc., St. Charles, Ill. The nozzles use a ceramic-insulated resistance wire that is compacted to nearly its theoretical limit for the highest heat transfer and longer heater life. Other features include a removable thermocouple located close to the tip. related catagory hot ru

Procter & Gamble stresses speed, repeatability and long life to maximize return in commodity production.High-tech mold design and consumer products might not seem like an obvious fit, but the commodity market is making extensive use of advanced toolmaking capabilities to meet a range of processing needs. Green DesignThe most visible of these is probably green design, which to many consumers is

How to choose the right manifold system for your stack molds.During the concept phase of a new project the option of selecting a stack mold is often overlooked because many mold designers are unfamiliar with the technology. Compared to a regular, single-face injection mold, stack molds can virtually double the output of an injection molding machine by distributing the plastic melt into two separat

Electrically actuated valve stems promise more control, cleaner actuation, closer pitch spacing, higher quality gates and reduced maintenance.A new technology for actuating stems in valve gated hot runner systems is emerging as a progressive and effective solution. Traditionally, hot runner systems have used either pneumatic or hydraulic actuation to open and close valve gates. While both technolo