Cold runner systems

ColdFlow

We configure cold runner systems for processing the inorganic, two-component elastomer material LSR (liquid silicone rubber) with the same passion we have for designing and manufacturing hot runner systems. Simple construction, modular nozzle design, and excellent thermal separation between the nozzle and cavity are the key features of our exceptional cold runner system solutions that we continue to refine with you in mind.

Your benefits at a glance

  • Good thermal separation of the cold runner nozzles to the hot cavity plate
  • Moveable fixation of needle guiding elements
  • Universal applicability of all nozzles individually or in collection housing
  • Variable needle stroke to compensate for filling differences
  • Split manifold with runner design that is gentle with the melt
  • Easy assembly and disassembly
  • Easy maintenance and cleaning
  • Convenient replacement of wear parts

Complete cold half as a standard part
GÜNTHER offer a complete cold half which can be purchased as a standard part and efficiently integrated into corresponding moulds.

The contact surfaces on the nozzle piece of the nozzles are kept as small as possible between the hot cavity plate and the cold half for thermal separation. Floating suspension helps to compensate for heat expansion. The flow volume of the cooling medium provides an optimum temperature profile.

 

Cold runner systems

Cold runner valve gate nozzles – individually or in a common housing
GÜNTHER's product range features two valve gate nozzles for cold runner systems. These nozzles can be used either individually or in a common housing for tighter cavity spacing with a common inlet and outlet.
 
Cold runner manifolds
For this purpose, GÜNTHER offer two types of cold runner manifold: a split version with two manifold plate halves and one with manifold plates equipped with closing plugs.

System cold runner nozzle type NKW

The NKW valve gate cold runner nozzle is used with a manifold. The nozzles can be individually tempered. Plug-in couplings enable easy mounting and dismounting of the cooling hoses. The modular system configuration ensures quick and easy cleaning.

System cold runner nozzle type NMW

The valve gate cold runner nozzle type NMW is also used with a manifold. Up to four nozzles can be controlled in one cooling circuit and placed close together.

Kaltkanalsysteme
Produktbild
Typenbezeichnung Heisskanaldüse
Single cold runner nozzle type 5NEW
Subheadline kurz

Cold runner nozzle for valve gate applications

Products details
Produktbild
Typenbezeichnung Heisskanaldüse
Single cold runner nozzle type 5DEW
Subheadline kurz

Cold runner nozzle for direct injection

Products details
Produktbild
Typenbezeichnung Heisskanaldüse
System cold runner nozzle type 5NKW
Subheadline kurz

Cold runner nozzle for valve gate applications

Products details
Produktbild
Typenbezeichnung Heisskanaldüse
System cold runner nozzle type 8NKW
Subheadline kurz

Cold runner nozzle for valve gate applications

Products details
Produktbild
Typenbezeichnung Heisskanaldüse
System cold runner nozzle type 3NMW
Subheadline kurz

Cold runner nozzle for valve gate applications

Products details
Produktbild
Typenbezeichnung Heisskanaldüse
System cold runner nozzle type 5NMW
Subheadline kurz

Cold runner nozzle for valve gate applications

Products details
Produktbild
Typenbezeichnung Heisskanaldüse
Connection element typ AKK
Subheadline kurz

Connection between machine nozzle and manifold

Products details

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