Long glass fiber coating
LFT MACHINE

LFT Twin Screw Extrusion Line

With the lightweighting of automobiles and the manufacturing of high-end equipment, traditional short fiber reinforcement is no longer sufficient to meet the demand. Long fiber reinforced thermoplastic composites (LFT Twin Screw Extrusion Line) are gradually becoming the mainstream alternative to metals due to their excellent specific strength, high impact resistance, and low creep characteristics.

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Product Parameters
Type L/D Main Power(kw) Screw Diameter(mm) Number of GFBranches Output(kg/h)
MT36 44~48:1 22 35.6 12 60~150
MT50 44~48:1 75 50 24 150~250
MT65 44~48:1 90 62.4 48 250~450
MT75 44~48:1 132 71 72 450~750

Raw Material Preparation

  • Common ones include PP, PA, PBT, etc. (choose high melt index, i.e., high fluidity)
  • Fiber: Glass fiber, carbon fiber
  • Additives, colorants, UV masterbatch, antioxidants, etc

LFT granules

 

LFT Extrusion Process

  • Twin screw extruder: adding plastic raw materials and additives (the head pressure needs to be increased)
  • Rotating fiber support to prevent entanglement
  • Baking traction machine: heats the fibers, reduces burrs, and pulls the fibers
  • Mold: W-wave mold. Maintain the molten state and turn on the melt pump to continue increasing the internal pressure of the mold. Let the fiberglass be stably wrapped in the molten raw material.
  • Cooling and shaping: a specially designed sink with a circulation system, providing a certain cooling effect
  • Secondary traction: Double pressure roller type, maintaining a certain speed, transported to the backend equipment
  • Blow dryer: removes moisture
  • Granulator: Special granulator, customized alloy steel cutting tools

 

Our Advantages

  • Our equipment is equipped with a multi-point temperature feedback+PID closed-loop control system to maintain temperature stability.
  • The resin melting section and fiber impregnation section are independently temperature-controlled, with an accuracy of up to ± 1 ℃.
  • Molten mold, 1:1 reference to German mold, independently developed and improved
  • The high rigidity granulator of the knife has a particle length error controlled within ± 1 millimeter (supporting flexible adjustment of 3-30mm).

 

The MQ LFT long fiber granulation line not only introduces a set of top-notch production equipment, but also holds the core key to the future lightweight market.

We use ultimate immersion, precise control, and flexible compatibility to help you easily overcome the material barriers of high-strength and tough structural components.

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