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Pultrusion

Pultrusion is a continuous, semi automated process for manufacturing composite materials. Continuous fibers or fabrics made of glass or carbon fibers are impregnated with a resin in the impregnation bath. The material is then drawn through a heated die, by a pulling system located near the end of the pultruder. The composite is then cut into lengths with a cut-off saw.

Pultruded composites are ideal for infrastructure applications, as the composites are produced with a constant cross section. This makes them directly comparable with metal products, as composite channels and I-beams, as well as other standard sections. Structures made from composites can be light, strong and have no corrosion problems.

Pultruded composites offer a real alternative to traditional materials such as steel, aluminum, plastics and wood.

Glass Fiber

  • High strength to weight ratio
  • Excellent electrical insulation
  • Will not warp / dent
  • Very good creep / fatigue performance
  • Non-magnetic
  • Can be produced with natural or pigmented finish

Carbon Fiber

  • Extremely stiff
  • Very high strength
  • Very low weight
  • Excellent creep / fatigue performance
  • Excellent dimensional stability
  • Highly resistant to chemical / atmospheric conditions
 

Made to measure pultrusions

Many customers have found that pultrusion represents the most cost-effective method of producing complex forms where production runs are complicated.

Pultrusion offers many differing possibilities in terms of resin, reinforcement and color such that customers can 'mix and match' to suit their requirements. Aramid or carbon fibers can be used instead of glass fiber and resin systems can be modified to improve flame retardancy or include self-extinguishing properties..

The use of custom built dies makes it feasible to produce extremely complex profiles which emerge ready for use, thereby eliminating any extra machining costs.

Advantages of composite tubes

  • strength
  • lightweight
  • stiffness
  • wide range, 5-250mm diameter
  • various wall thicknesses
  • good surface quality
  • corrosion free
  • resistance to chemicals
  • insulates electricity and heat
  • wide range of colors

Applications

  • tool handles
  • telescopic structures
  • profiles for the furniture industry
  • sprayer lances
  • various lightweight structures, e.g. lightweight shelters
  • fence structures
  • kite tubes
  • profiles for machine engineering, e.g. manufacture of weaving looms
  • electrical insulation tubes for the process industry
  • tubes for measuring devices and alignment
  • robot arms
  • miniature models
  • equipment for the defense industry
 
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