Composite Tools

Molds - RTM


With over 30 years of experience in manufacturing complex injection mold systems, Westminster Tool’s engineers understand the importance of controlling thermal inputs to the repeatability and optimization of production processes. These same principles of thermal control apply to composite tools and the molding processes. Westminster Tool has been successful in applying these principles to a variety of different composite mold types to increase process repeatability, reduce cycle time, and significantly decrease manufacturing equipment footprint.

Westminster Tool has collaborated with our customers’ to produce innovative mold systems for the following composite manufacturing methods:

  • Resin Transfer Molding (RTM)
  • Vacuum Assisted Resin Transfer Molding (VARTM)
  • Compression Molding


Westminster Tool has successfully applied our dynamic approach to precision machining of complex details for injection and composite tools to our customers’ other tooling needs. Increasingly, this has included tooling used in preforming fabrics and fibers for composite part manufacture. Whether our customers require traditional in-oven, vacuum preform tooling or a customized out-of-oven solution, Westminster Tool has the design and manufacturing experience to provide preform tooling that meets our customers’ most demanding requirements.


Our Preform Tooling Expertise Includes:

  • Complex, build to print tool manufacture
  • Large preform tool systems with numerous details
  • Integrating preform tool systems with automation
  • Tool manufacture using a variety of materials, including anodized aluminum
  • Tool design consulting services
Westminster Tool - Precision Tooling


Resources & Capabilities


Metal 3D Printing

Westminster Tool’s in-house additive technology offers alternatives for component work. Using Mantle’s TrueShape Technology, we can produce custom, metal-printed components for your projects.

  • Material: H13 and P20
  • Hardness: Up to 52 HRC on H13, 33 HRC on P20
  • Build Volume: Up to 6 in. × 6 in. × 4 in.
  • Tolerance: +/- 0.002 to +/- 0.006
  • Surface Finish: 1-4 μm Ra

Polymer 3D Printing

Using Westminster Tool’s desktop polymer 3D printer, you can identify challenges or produce the look and feel of a part by printing life-size prototype parts prior to molding. This opportunity also allows us to build custom fixturing quickly and cost effectively.

  • Ultimaker 3D Printer
  • Dual Extrusion
  • Open material system for most common
  • Carbon-filled, glass-filled compatible


Driven by automation, palletization and repeatable processes, our team will find a manufacturing plan that reduces cost and maximizes accuracy.

  • Sinker EDM
  • Wire EDM
  • High-speed Hard Mill
  • 5-Axis Continuous Mill
  • CNC Lathe
  • Palletized Setups


Utilizing RJG Scientific Molding principles, our team will ensure a robust and repeatable molding process, paired with state-of-the-art injection molding machines.

  • 110 Ton, 150 Ton, 354 Ton Injection Mold Presses
  • Capacity for high-temperature resins
  • Certified Torlon molder
  • On-site mold modification and repair

Our process pairs talent with technology. That means having the latest and most robust software systems that give us the tools to support you.


Our software suite and tools include:

    • TopSolid
    • SolidWorks
    • Siemens NX
    • Mastercam
    • Moldex3D

Our diverse experience in molds and tooling, molding, and machined components enables us to support your success beyond just building to print. Working with Westminster Tool means a relationship built with services to achieve one goal: solve your challenge.


These services include:

    • DFM Support
    • Moldex 3D Simulation
    • Quality and Dimensional Risk Assessment
    • CMM Steel Inspection

At Westminster Tool, quality is always top priority. That’s why we’ve committed our operations to meeting industry standards and regulations specifically to improve our quality management system, and by extension the quality of service we provide to our customers.


  • ISO 9001
  • AS9100
  • Production Part Approval Process (PPAP)
  • First Article Inspection (FAI)
  • ITAR Certified
  • Medical

    Medical Devices, Optical, Medical Consumables and Drug & Fluid Transfer Devices.

  • Aerospace & Defense

    Engines, and Aircraft Structure.

  • Consumer Packaging

    Pharmaceutical Packaging, Personal Care, Food & Beverage, and Household Chemicals.

  • Automotive

    Instrumentation, and Complex, Small Sized Interior Components.

  • Industrial

    Bearing Cages, Bushings, Pump Components, High Temperature Electrical Assemblies, Down Well, Harsh Environment Components, and Instrumentation.

Interested in utilizing us for your next project?

Contact us today to find out how our team can support you.