
Development and manufacture of hot runner and cold runner systems for plastic and silicone injection molding.
GÜNTHER Heisskanaltechnik GmbH
Frankenberg (Eder) · Shanghai · ChicagoNew on Amplifa
About GÜNTHER Heisskanaltechnik
GÜNTHER Heisskanaltechnik GmbH is a manufacturer of hot runner and cold runner systems for injection molding applications in the plastics and silicone processing industry. Founded in 1983 and headquartered in Frankenberg (Eder), the company develops and manufactures open hot runner nozzles, needle shut-off systems, multiple hot runner nozzles, hot runner manifolds, ready-to-install complete systems (Ready2Connect®) as well as cold runner systems (ColdFlow) for LSR processing. The portfolio is complemented by temperature control and control technology (blueMaster), electrical connections and accessories. Manufacturing takes place at the Frankenberg site, among other things with CNC lathes, 5-axis CNC milling machines and cylindrical grinding machines; in the in-house technical center with injection molding center, material tests are carried out under production conditions. Industries served include automotive, consumer goods, electronics, medical technology and packaging. With subsidiaries in Shanghai (China) and Chicago (USA) as well as representatives in 19 countries, the company operates internationally.
- Site
- Frankenberg (Eder)
- Processes
- Hot runner systems (manufacturing/configuration), Open hot runner nozzles, Multiple hot runner nozzles (vertical/lateral gating), Needle shut-off nozzles / needle shut-off systems, ClusterFlow multiple needle shut-off nozzles (32 gate points on 70 x 35 mm), BlueFlow® hot runner nozzles with thick-film heating, Hot runner manifolds, ColdFlow cold runner systems (cold runner needle shut-off nozzles, cold runner manifolds)
- Materials
- Plastics (injection molding), Thermoplastics, LSR (Liquid Silicone Rubber), Silicone, engineering thermoplastics, Hot runner systems, BlueFlow® thick-film heating, ColdFlow cold runner systems
- Certificates
- DIN EN ISO 9001:2015, DIN EN ISO 14001:2015, ISO 9001, ISO 14001
- Founded
- 1983
- Employees
- approx. 240
- Industries
- Automotive, Consumer goods, Electronics, Medical technology, Packaging, Plastics processing
- 01
Technical consulting and application engineering design
- 02
Design and configuration (CADHOC® System Designer, Delta tool)
- 03
Machining production (turning, milling, grinding)
- 04
Assembly of electrical connections
- 05
System assembly
- 06
Material tests in the technical center
- 07
Service, maintenance and repair
Materials and Processes
Hot runner systems
Open hot runner nozzles, needle shut-off systems, hot runner manifolds and complete systems for plastic injection molding.
BlueFlow® thick-film heating
Hot runner nozzles with thick-film heating and split shank for thermally sensitive plastics with energy savings of up to 50%.
ColdFlow cold runner systems
Cold runner needle shut-off nozzles and manifolds for processing LSR (Liquid Silicone Rubber) and silicone.
Temperature control and control technology
Hot runner temperature controllers blueMaster compact/pro/step for precise temperature control and needle shut-off control.
LSR (Liquid Silicone Rubber)
Inorganic two-component elastomer material, processed with GÜNTHER cold runner systems.
CADHOC® System Designer
CAD configurator with direct provision of CAD data and cost overview for hot runner systems.
Locations

Frankenberg (Eder)
DECompany headquarters, production, administration, technical center
- Materials
- Plastics, thermoplastics, LSR
- Arburg Allrounder 270A comfort 250-70 (2024)
- Engel E-Victory 170/120 (2024)
- Arburg Allrounder 370A 600-100 (2019)
- Arburg Allrounder 520A 1500-400 (2019)
- 5-axis CNC milling machine
- 2 cylindrical grinding machines
- 2 Spinner CNC lathes
- Kellenberger grinding machine
- Deckel-Maho milling center
- TBT deep-hole drilling center
Shanghai
CNSubsidiary
Chicago
USSubsidiary GUNTHER Hot Runner Systems Inc. with manufacturing facility
Inside the production

Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Hot runner systems (manufacturing/configuration)Plastics | – | – | – | – | Plastics, Thermoplastics, LSR, thermally sensitive plastics |
| Open hot runner nozzlesPlastics | – | – | – | – | Plastics, Thermoplastics, engineering thermoplastics |
| Multiple hot runner nozzles (vertical/lateral gating)Plastics | – | – | – | – | Plastics |
| Needle shut-off nozzles / needle shut-off systemsPlastics | – | – | – | – | Plastics, Thermoplastics |
| ClusterFlow multiple needle shut-off nozzles (32 gate points on 70 x 35 mm)Plastics | – | 35 mm × 70 mm | – | – | Plastics |
| BlueFlow® hot runner nozzles with thick-film heatingPlastics | – | – | – | – | thermally sensitive plastics |
| Hot runner manifoldsPlastics | – | – | – | – | Plastics |
| ColdFlow cold runner systems (cold runner needle shut-off nozzles, cold runner manifolds)Plastics | – | – | – | – | LSR (Liquid Silicone Rubber), Silicone |
| Hot runner complete systems Ready2Connect® / hot halves (ready to install)Plastics | – | – | – | – | Plastics, Thermoplastics |
| Temperature control and control technology (hot runner controllers blueMaster compact/pro/step)Plastics | – | – | – | – | – |
| Material tests in the technical center (injection molding center, trial tools under productionTesting | – | – | – | – | Plastics, LSR |
| Design and configuration of hot runner systems (CADHOC® System Designer, Delta tool)Engineering | – | – | – | – | – |
12 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Injection molding machine | Arburg Allrounder 270A comfort 250-70 | 1 | – | 2024 | Frankenberg (technical center) |
| Injection molding machine | Engel E-Victory 170/120 | 1 | – | 2024 | Frankenberg (technical center) |
| Injection molding machine | Arburg Allrounder 370A 600-100 | 1 | – | 2019 | Frankenberg (technical center) |
| Injection molding machine | Arburg Allrounder 520A 1500-400 | 1 | – | 2019 | Frankenberg (technical center) |
| 5-axis CNC milling machine | – | – | – | – | Frankenberg |
| Cylindrical grinding machine | – | 2 | – | – | Frankenberg |
| Lathe | – | 2 | – | – | Frankenberg |
| Measuring machine | – | 1 | – | – | Frankenberg |
| Milling center | Deckel-Maho | 1 | – | – | Frankenberg |
| Deep-hole drilling center | TBT | 1 | – | – | Frankenberg |
| CNC lathe | Spinner | 2 | – | – | Frankenberg |
| Grinding machine | Kellenberger | 1 | – | – | Frankenberg |
Additional services
Reference customers
Quality
GÜNTHER is certified according to DIN EN ISO 9001:2015 and DIN EN ISO 14001:2015. In the in-house technical center, material tests are carried out with trial tools under production conditions.
| Evidence | Frankenberg (Eder) |
|---|---|
| ISO 9001 | |
| ISO 14001 |
History
- 1983
Founded as HEROS Heisskanaltechnik with two employees in Allendorf-Rennertehausen; renamed GÜNTHER Heisskanaltechnik GmbH a short time later.
- 1984
First orders for a nozzle (March) and a hot runner system (April).
- 1985
Relocation to Frankenberg; first exports.
- 1986
First participation in the K trade fair.
- 1990
Representatives in England (GÜNTHER U.K. LTD.), Italy, Benelux; 230 V system developed.
- 1990/1991
Subsidiary GUNTHER Hot Runner Systems Inc., Chicago founded; representatives in France, Denmark, Norway, Finland; 50th employee.
- 1995
88 employees; first 24 V system.
- 1999
Representatives in Asia (Taiwan, Hong Kong); ground-breaking ceremony for new building on 15,000 m².
- 2000
Administration building completed; 140 employees; investments in cylindrical grinding machine, 5-axis CNC milling machine, measuring and lathes.
- 2001
Representatives in 19 countries; export share 45%.
- 2002
L.I.F.E. project with B. Braun; 100,001st nozzle handed over to Megaplast.
- 2003
20th anniversary; 180 employees; machine fleet expanded to include Deckel-Maho milling center, TBT deep-hole drilling center, 2 Spinner CNC lathes and a Kellenberger grinding machine.
- 2004
GÜNTHER Italia founded; management expanded (Ms. S. Sommer).
- 2026
2nd place FAKUMA Innovation Award 2026 (injection molding category) for the CLUSTERFLOW nozzle.