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(VARTM) Vacuum-Assisted Resin Transfer Molding

Similar to RTM, Vacuum Assisted Resin Transfer Molding (VARTM) is typically an open-top mold composite part fabricating method that attaches a vacuum bag to the top of the mold tool and applies vacuum to assist the continuous flow of low-pressure infused resin from one side of the mold to the other. Vacuum removes air from the preform and assists the VARTM machine’s on-ratio metered and mixed flow of degassed air-free resin through the compressed composite fiber preforms below the vacuum bag. The APT VARTM process can provide a 60 to 70% fiber to resin ratio with near zero void content.

Products Manufactured - with this application:
Reactive Thermoset Resins Processed - (Epoxies, Polyurethanes, Polyesters, Vinyl Esters, Silicones and Polyimids):
Industries Using These Resin Dispensing Machine Processes:
Each of these APT Dispensing Systems optionally include:
Products Manufactured - with this application:
  • Aircraft Fuselage Sections
  • Aircraft Landing Gear Doors
  • Large Composite Panels
  • Wind Turbine Blades
  • High Fiber Content Parts
  • Low Void Content Parts
  • Carbon Fiber
Reactive Thermoset Resins Processed - (Epoxies, Polyurethanes, Polyesters, Vinyl Esters, Silicones and Polyimids):
  • Unfilled, Reactive Thermoset Resins
  • Heated or Room-Temperature
  • 2 to 8 – Metered Components
Industries Using These Resin Dispensing Machine Processes:
  • Aerospace
  • Marine
  • Wind Energy
  • Industrial
  • Recreational
  • Automotive
  • Medical
Each of these APT Dispensing Systems optionally include:
  • Vacuum Control System – for precise vacuum level control in the degassing tanks and in the VARTM mold.
  • Transducers – monitor and digitally control mixed resin pressure in the mold.
  • Programmed PLC or PC-Controllers with Touchscreen Interface
  • Digital User-Presets for Ratio, Shot-Size, Output-Rate, Temperatures, Vacuum Levels and Mixer Speed.
  • Batch Material Preparation Tanks – apply heat, agitation and vacuum to the materials in batches
  • or Continuous Thin Film Degassers – heat, agitate and degas materials on-the-fly.
  • Rotary Gear Metering Pumps or Piston Metering Pumps
  • Digital, Servomotor Drives for the Metering Pumps or Wedge-Driven Piston Metering Pumps
  • Mass Flowmeters or Mechanical Flow Meters
  • Static or Dynamic Mixers
  • Purge Systems
  • Data Logger
  • Vacuum Pumps
  • Open Casting
  • Closed-Mold Injection
  • Vacuum Casting
  • (RTM) Resin Transfer Molding
  • (VARTM) Vacuum-Assisted Resin Transfer Molding
  • Filament Winding – Resin Bath Filling

Learn how any of these systems can work for your VARTM application.

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We are committed to responsive after-sale service and technical support.

After delivery, we check the installation.

Assist with running your SRD, ECS or HT-Series system with your material.

Your designated machine-operators can be trained.

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