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Closed-Mold Injection

Closed-mold injection is a process where the degassed, metered and mixed materials are typically injected into the mold with positive pressure from the bottom, up. The air-free mixed material rises up inside the closed mold, forcing air that is on top of the resin out of the mold through top-side vent holes. Closed mold injection is sometimes combined with spin casting or compression molding.

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:
  • Paper-Making & Printing Rolls
  • Torpedo Nose Cones
  • Missile Silo Pads
  • Pump Impellers
  • Hydraulic Seals
Reactive Thermoset Resins Processed - (Epoxies, Polyurethanes, Polyesters, Vinyl Esters, Silicones and Polyimids):
  • Abrasive-Filled and Unfilled, Reactive Thermoset Resins
  • With or without aluminum oxide, silica sand or glass powder fillers.
  • With or without solid or hollow microspheres.
  • 2 to 8 – Metered Components
  • Heated or Room-Temperature Formulations
Industries Using These Resin Dispensing Machine Processes:
  • Printing
  • Marine
  • Medical
  • Automotive
  • Aerospace
  • Industrial
Each of these APT Dispensing Systems optionally include:
  • 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.
  • Vacuum Control System – for precise vacuum level control in the degassing tanks.
  • 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 Loggers
  • Color Metering Systems
  • 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 closed-mold injection application.

SRD SOLUTION
SRD I SOLUTION
ECS SOLUTION
FLYING WEDGE SOLUTION

AVAILABLE CUSTOMER SERVICE

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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732.356.4438

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