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CNG Pressure Vessels
CNG Pressure Vessels
CNG Pressure Vessels


Filament Winding is the process of winding resin-impregnated fiber or tape on a mandrel surface in a precise geometric pattern. This is accomplished by rotating the mandrel while a delivery head precisely positions fibers on the mandrel surface. By winding continuous strands of carbon fiber in very precise patterns, Zoltek can build structures with properties stronger than steel at much lighter weights.


Intelligent Automated Solutions
Zoltek CNG, Carbon Fiber, Filament Winding, Compressed Natural Gas

FiberGrafiX™ filament winding pattern generation

With over 40 years’ experience, Entec Composite Machines (a Zoltek company) is the world’s leader in filament winding machinery and software. This expertise has allowed us to create FiberGrafiX™, a superior software application for filament winding pattern generation and optimization. Twenty years ago, this software program was the first of it’s kind. Today, FiberGrafiX™ has continued to lead the industry and is now used on more machines around the world than any other similar application. Patterns generated by FiberGrafiX™ can be output to any filament winding machine’s computer control system.

Entec offers a full-range of filament winding services, which include:

  • Complete facility layout
  • Filament winding equipment
  • Product design support & prototyping
  • Winding pattern software and control systems
  • Process parameters