Hot Runners

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Published: 8/1/2008

Hot-Runner Mold Inserts Offer Cooling Enhancement
Improved cavity filling and cooling are the aims of a new line of inserts for hot runners that are made by “selected laser melting” (SLM) of H-13 steel powders.

Published: 7/1/2008

Single Valve-Gate Nozzle For High Temperatures
A new single valve-gate nozzle uses mechanical actuation that takes up very little space in the mold.

Published: 7/1/2008

Internally Heated Hot-Runner Nozzles
A new source of internally heated hot-runner nozzles that eliminate the risk of external heater-wire damage is Melt Design Inc., St.

Published: 6/1/2008

Hot-Runner Controller For 6 to 12 Cavities
A compact hot-runner temperature controller for low-cavitation applications was introduced at April’s Chinaplas show in Shanghai by Mastip of New Zealand (represented here by Mastip North America, Slinger, Wis.). Its new S series controller is...

Published: 6/1/2008

Valve-Gate Nozzles Get Performance Enhancement
Bolt-on High-Performance (BHP) valve-gate nozzles from Herzog AG in Switzerland (represented here by Xaloy Inc., Pulaski, Va.) have been redesigned to improve melt flow 25% while imparting less shear stress to the melt.

Published: 5/1/2008

Valve Gate Nozzles Now with Four Drops
Pneumatically controlled valve-gate nozzles from Manner International LP, Norcross, Ga., designed for direct side-gating of tubular parts or applications that require lateral injection, have been extended from a two-drop system to include a four-dro...

Published: 5/1/2008

New Thermal and Valve-Gate Nozzles and Controller
A thermal-gate nozzle that’s the smallest in a line designed for hot-half applications, a valve-gate style for single-nozzle applications, and a multi-zone hot-runner temperature controller are all new from Mastip North America, Slinger, Wis.

Published: 4/1/2008

Low-Cost Unitized System Available in U.S.
Unitized hot-runner manifold systems, which don’t require assembly before mounting between retainer plates, are a new offering in North America from PSG Plastic Service Group Inc., Stevensville, Mich.

Published: 4/1/2008

Hot-Runner Flow Control For Thermal Gates
WEB EXCLUSIVE A new hot-runner flow controller based on pressure rather than temperature was introduced recently by Mold-Masters Ltd., Georgetown, Ont.

Published: 4/1/2008

Hot-Runner Nozzle Upgrades
Value Shot hot-runner nozzles for multicavity applications from Hasco America Inc., Arden, N.C., have been redesigned and upgraded.