Hard No-Bake molds, induction melting and 3D CAD tooling design


  • Phenolic Urethane No Bake (PUNB) cope and drag molding. 600 lb./min. continuous mixer. Mechanized roll over and draw.
  • Manual jolt-squeeze green sand molding. Typical flasks 12×20, 14×14, 14×18, 14×19 (Hunter HMP10)

Electric Induction Melting

  • 700kw induction melting with two 2,000 lb. tilt pour furnaces. Maximum melt per day is 8,000 lbs
  • Ductile iron treatment and pouring up to 600 lbs. per ladle
  • Gray iron pouring up to 800 lbs. per ladle

CNC Pattern Making

  • 3D CAD/CAM and CNC milling patterns and core boxes
  • 3D CAD with Solidworks
  • CNC toolpath with FeatureCAM

Hard No-Bake Molds and 3D CAD Tooling for Complex Castings

No-Bake molding with resin bonded sand is the most flexible and reliable sand process for complex castings. Hard resin bonded sand molds are made with the least expensive tooling or any legacy foundry tooling with minimal re-rigging costs.
OK Foundry Makes Rapid Foundry Patterns by CNC Milling Urethane Tooling Board


  • Tensile strength, yield strength, and elongation measurement on site to ASTM A48, A536, and E8 standards
  • Chemical analysis, metallographic and microstructure analysis by third party labs
  • Thermal analysis of every heat to determine Total Carbon and Silicon

Traditional Foundry Pattern Making

  • Traditional foundry pattern making in wood
  • Pattern reproduction in high strength castable urethane
  • Reverse engineering of patterns to replace missing coreboxes

3D Printed Mold Design

  • 3D CAD design of 3D printed molds and cores
  • Manual jolt-squeeze green sand molding. Typical flasks 12×20, 14×14, 14×18, 14×19 (Hunter HMP10)

Additive Manufacturing and 3D CAD Design

OK Foundry uses the most advanced additive manufacturing processes and 3D CAD design to solve difficult complex casting problems. 3D printed sand cores enable difficult castings in low volumes with minimal tooling costs.
3D Printed Molds and Cores Enable Complex Castings