Plastic Injection Mold Tooling Manufacturer

Retlaw Designs the Right Solution for Your Project

Retlaw Industries has been a leader in tool-making for plastic injection molds for a variety of industries. Our master toolmakers work with our state-of-the-art machinery to create the exact mold you need for your OEM parts.

Plastic tooling is the process of creating molds used in plastic injection molding. It involves designing the mold, crafting its components, testing for quality and adjustments, and then using the mold for mass production of plastic parts. The process ensures accurate and consistent production of plastic items.

The tooling specialists at Retlaw work in tandem with CAD designers to create custom high-accuracy tool molds for thermoplastic products. We use a wide variety of tools and CNC machines, from Wire Electrical Discharge Machining and Sinker EDM to CNC lathes and surface grinders. Working together, our designers and machinists can make just about any plastic mold you can dream up.

Let's Get Started on Custom Tooling!

Contact the machine tooling specialists at Retlaw to have your own custom mold machined by the experts.
Mitsubishi CNC Machining
Precision Tooling at Retlaw
Custom Tool Mold Manufacturing
Sinker EDM Manufacturing Wisconsin
Steel Machining and Tooling
Plastic Injection Molding Wisconsin
Precision Mold for Thermoplastics
Sinker EDM with Dielectric Fluid
Tooling Drill Bits
CNC Drill Press
Tooling and Plastic Mold
Sinker EDM Electrode
Carbide Electrodes
Precision Machined Molds
Sinker EDM Services Wisconsin

Graphite Electrode Machining for Sinker EDMEDM Tooling and Composite Part Design

Retlaw produces graphite patterns for use in the EDM process. Machining graphite to shape and burn the detail into steel can reduce lead time and create extreme detail, resulting in faster turnaround times for your product.

EDM Machining

After the graphite block is machined into a graphite electrode it is mounted to an electrode holder and inserted in the EDM machine where a positive or negative charge is applied to the graphite. The charged graphite transfers its charge to the steel mold material, and the sparks erode the steel to create opposite shapes required to create the tooling.

In order to control the spark, the electrode is submerged in an insulating liquid, often de-ionized water or oils. The electrode is kept at a consistent distance from the workpiece and the dielectric fluid surrounding it prevents short-circuiting. This entire process is called sinker or ram EDM.

Precise Wire EDMWire EDM spooling machine

Retlaw is able to cut molds to the highest tolerances possible thanks to our Wire EDM machines. Wire EDM sends an electrical charge through a piece of wire. The wire cuts an extremely precise line as it cuts through steel up to 12 inches thick with tolerances as small as .0005".

EDM techniques enable cutting without burring, which reduces the need for additional finishing of the workpiece.

Tool Making Equipment

Below is a list of some of the equipment Retlaw's expert toolmakers use:

Retlaw’s EDM Machines

  • Mitsubishi MV2400-S Wire Electrical Discharge Machine
  • Charmille CNC Electrical Discharge Machine - Type Roboform 51
  • Charmille CNC Electrical Discharge Machine - Type Roboform 35P
  • Charmille Electrical Discharge Machine - Type D10

CNC Machines and Controllers

  • Milltronics - Model MB20 with Centurion 6 SLS Control
  • Voest Lathe - 17" x 10"
  • Miltronics CNC Lathe - 17.5" swing X 40" centers
  • OKK - VM5 M635 CNC Control - 13,000 RPM
  • OKK – DGM400 M635 CNC Control – 30,000 RPM

…And Many More


Retlaw Industries proudly provides Custom Tooling for Plastic Injections for all 50 states, including but not limited to: Wisconsin, New York, Pennsylvania, Washington, Indiana, Colorado, Michigan, Massachusetts, and Ohio!

Contact the tooling experts at Retlaw to begin building molds for your next plastics project.

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Retlaw sells in all 50 states. Let's get together and build a solution.
For over 40 years, Retlaw has produced quality injection molding tools which has led us into thermoplastic injection molding for a wide variety of industries. With over 19 injection molding machines, decades of collective experience, and over 50,000 square feet under roof and room to expand, we are always ready for your new projects.
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