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AIRMOULD® – Internal gas pressure technology

The patented gas-assisted injection molding process developed by WITTMANN BATTENFELD

Technologies
Application Technology

AIRMOULD® application

AIRMOULD® internal gas pressure injection molding is a process in which nitrogen is injected into the mold cavity partly or completely filled with melt. The pressurized gas forms a bubble at the center of the melt, which counteracts shrinkage contraction on the outside and thus eliminates sink marks. By reducing the amount of plastic and enlarging the central cavity, it is possible to produce specific lightweight components with short cycle times and simultaneously good surface quality. This process opens up good opportunities for molded part designers to produce complex parts with smooth surfaces in one piece.

 

Advantages of AIRMOULD® application:

  • Quality improvement
  • Weight reduction
  • Plastic material savings
  • Reduction of component unit costs
  • Prevention of sink marks
  • Reduction / prevention of warpage
  • Design freedom

AIRMOULD® equipment

The nitrogen and pressure generation equipment developed and manufactured by WITTMANN BATTENFELD is available in different sizes and with varying capacities, to supply individual machines or to function as central systems supplying several machines.

The control systems of the units are self-explanatory. All important process information is clearly displayed. The control of every unit can be integrated into the corporate network, which enables transfer of all settings and visualizations within the plant to any network-compatible PC.

Machine equipment:

  • Nitrogen generator (SE)
    SE series, mobile units, store nitrogen filtered from the surrounding atmosphere through a multi-membrane system
  • Compressor (DE)
    DE series, nitrogen is compressed to an operating pressure of 300 bar
  • Pressure control modules
  • Injection modules or AIRMOULD® machine nozzle
  • Mobile control unit or full integration into UNILOG B8

 

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Advantages of the equipment

  • All components from a single source
  • Can be expanded at any time by adding a nitrogen generator
  • Independent operation, logistics to supply nitrogen bottles
  • Modest space requirements
  • Modern control system with remote control options
  • Up to eight pressure control modules can be connected
  • Program to control core pulls
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Downloads

airmould_en_2019_07_web

BROCHURE: AIRMOULD®

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References

Report WITTE Automotive group, Germany

300 bar pressurized nitrogen under control – WITTMANN BATTENFELD AIRMOULD® at WITTE Automotive

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Report Boryszew Oberflächentechnik Deutschland GmbH

Perfect surfaces with galvanized plastic parts

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Report Hugo Ackermann GmbH & Co. KG

Ackermann – successful with innovative, energy-efficient injection molding technology from WITTMANN BATTENFELD

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Report Dieter Wiegelmann GmbH, Germany

Closeness to customers, flexibility and high quality standards make Dieter Wiegelmann an ideal partner for sophisticated solutions in plastics

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WITTMANN BATTENFELD SE – Nitrogen generator

WITTMANN BATTENFELD SE – Nitrogen generator

WITTMANN BATTENFELD pressure and nitrogen generators

WITTMANN BATTENFELD pressure and nitrogen generators

WITTMANN BATTENFELD SE-DE

WITTMANN BATTENFELD SE-DE

AIRMOULD®
AIRMOULD®
AIRMOULD®
AIRMOULD®
AIRMOULD®
LIM – Liquid Injection Molding
AIRMOULD®
AIRMOULD®
AIRMOULD®

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Light weight technology – CELLMOULD®

CELLMOULD® is a process developed by WITTMANN BATTENFELD to manufacture structured foam parts through direct gas injection with physical foaming agents.

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Multi-component technology – COMBIMOULD

Multi-component molding technology offers a way to produce multifunctional parts from two or more  plastic materials with different attributes and/or in different colors.

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SmartPower 25 – 400 t

The compact servo hydraulic machines with intelligent, energy-saving drive system. These models are "unlimited" in precision, efficiency and usability.

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UNILOG B8

One control unit for all machines. The UNILOG B8 is the solution to control complex processes for human operators.

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WITTMANN BATTENFELD, INC.
1 Technology Park Drive
Torrington, CT 06790, USA
T +1 860 496 9603
F +1 860 482 2069
info.us@wittmann-group.com


West Coast Tech Center
1000 S. Melrose St
Placentia, CA 92870
T +1 860 496 9603
F +1 860 482 2069
info.us@wittmann-group.com

Midwest Tech Center
1620 Shanahan Drive
South Elgin, IL 60177-2277
T +1 860 496 9603
F +1 847 482 2069
info.us@wittmann-group.com

 

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