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Valve Gate Actuators


No More Cooling Required

Cooling-free Black Box™ and iVG™ hot runners represent a new generation of valve gate systems that does not require maintenance during the life of the mold. These systems eliminate all quality issues related to cooling water such as corrosion and contamination. Less plumbing also simplifies the design and assembly of the mold. New cooling-free technology can benefit all valve gate applications, including high temperature plastics such as PEEK, LCP, PSU, PEI, and PPS, known for their special properties. Processing these materials requires high melt temperatures of up to 450°C in the hot runner and mold temperatures of over 200°C. Black Box™ and iVG™ hot runner systems deliver uninterrupted performance under extreme conditions without cooling or wear. The result is a significant increase in reliability and mold uptime.




Black Box™ Valve Gate Actuators
The new Rheo-Pro® Black Box™ valve gate cylinder operates without elastomeric seals or lubricants, delivering continuous operation at temperatures of 450°C without cooling or maintenance. The new technology outperforms electric, hydraulic, and conventional pneumatic valve gate hot runners in a wide range of applications.




Rheo-Pro® Black Box™ valve gate actuators require no cooling and operate maintenance-free in temperatures up to 450°C




iVG™ Internal Valve Gate
The Rheo-Pro® iVG™ is an internally air actuated valve gate system with no external cyclinder, no seals, no lubricant, and no cylinder cooling. It represents the latest and most innovative valve gate technology in the industry and is ideal for ultra compact mold designs. The iVG™ performs well under the most demanding processing conditions. Unlike electric valve gates and conventional pneumatic cylinders, that can fail in extremely hot operating environments, the internal valve gate performs at temperatures up to 400°C.






Rheo-Pro® iVG™ internal valve gate nozzles with a piston inside the nozzle body are clean, compact, and cooling-free

 


 

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Cooling-free Valve Gating
iVG™ Internal Valve Gate
Black Box™ Valve Gate Actuators
Multi-tip Valve Gate
CV Valve Gate Sequence Controllers
Sequential Valve Gating
High Cavity Valve Gating
Cascade Molding
Stack Molds



 

Advantages of Cooling-Free Valve Gating

  More mold uptime with zero actuator maintenance  
  No seals to maintain or replace, ever  
  No cooling water required, saves energy and maintenance costs  
  Compact dimensions for better mold designs  
  No machine downtime waiting for cylinders to cool to safe temperature when removing molds  
  Available in different configurations for all valve gate hot runner applications  
  Produces more force than conventional actuators  
  Clean operation without oil or lubruicants, ideal for clean room environments  
  Ideal for high processing temperatures  
       





Hot runner hot half with two manifolds for multi-material application featuring Black Box™ valve gate actuators

 



A Better Warranty

All standard Rheo-Pro® hot runner components are developed for maximum reliability, flexibility and performance. MHS manufactures the most rugged and precision engineered systems in the world. Through rigorous testing and billions of cycles in the field, Rheo-Pro® hot runners have one of the best track records in the industry. We fully stand behind every solution we build.



   

 

 

Design Files CAD

     

Black Box™ Valve Gate Actuators

Cooling-Free Pneumatic Cylinders

Download

VA4010 DXF PDF XT
VA6015 DXF PDF XT
       

iVG™ Internal Valve Gate Nozzles

Cooling-Free Pneumatic Cylinders Inside Nozzle

Download

iVG™ Nozzle Sizes Overview PDF    
       

 

   
 

File Format Information
PDF - Adobe Acrobat®
DXF - AutoCAD® Drawing Format
DWG - Vector Image File Format
X_T - 3D Parasolid

Download Help

 

Mold Flow Analysis
  Nozzle Series
Hot Halves
Manifold Systems

Single Bushings
Controllers
Analysis

  New Products





 

Rheo-Pro® Hot Runner Systems Overview

Nozzle Size Valve Gate   iVG™ Internal Valve Gate   Thermal Gate   Side Gate   Single Bushing
M05              
N04              
N05          
N08        
N12          
N16          
N20          
N30            

 

CAD Files
To download design files please select a nozzle size
   

 
 

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MHS is a global supplier of hot runner systems, injection molding machines, controllers, and engineering support for manufacturers of plastic parts.