Low Pressure Permanent Mold Casting

The Low Pressure Permanent Mold (LPPM) manufacturing process is a cornerstone at Le Sueur Incorporated. As a metal casting process, LPPM casting is optimal for intricate casting designs or where structural and pressure tight castings are needed.

Our decades of industry-leading engineering experience allow us to be one of the very best in providing castings for pressure tight and leak tight applications. We have the ability to pour many alloys in Low Pressure Permanent Mold, most commonly A356 and 356.

For more information about our Low Pressure Permanent Mold services, please contact us or get a quote for your next project.

LPPM Casting Process

Low Pressure Permanent Mold casting applies low pressure between 3-15 psi on a reservoir of molten aluminum, gently forcing aluminum into the mold cavity. Pushing the aluminum into the mold not only fills the cavity and the contours of the casting shape but also feeds the shrinkage during the casting solidification process. This achieves a higher quality and a more consistent casting while minimizing finishing operations and gate removal. Additional benefits to low pressure die casting include improved mechanical properties and performance of the casting.

Low Pressure Permanent Mold Casting TK 4 Cylinder

Low Pressure Permanent Mold Casting Process

Courtesy of Kurtz Ersa Corporation | www.kurtzersa.com

Industrial Low Pressure Casting Applications

  • Air Cylinders
  • Aluminum Housings
  • Aluminum Wheels
  • Compressor Bodies
  • Cooling Fins
  • Covers
  • Electrical Boxes
  • Electrical Transmission Equipment
  • Fan Blades & Hubs
  • Gear Boxes
  • Gear Cases
  • Hubs
  • Hydraulic Cylinders
  • Impellors
  • Manifolds
  • Oil Pans
  • Pistons
  • Pressure Housings
  • Pump Components
  • Suspension Components
  • Transmission Channel Plates
  • Valve Bodies
  • Valve Housings
  • Wind Generation Equipment

Advantages of Low Pressure Permanent Molding

  • Superior mechanical properties
  • Higher internal quality casting (ability to maintain a higher quality level in x-ray)
  • Able to maintain a more repeatable and quality process (fully automated) resulting in a more consistent casting
  • Improved quality results in a sound and pressure tight/leak tight application
  • Improved grain structure for best machining results
  • Low risk of gas picked up during a constant fill of the mold
  • Production flow improvement with increased yield
  • Minimized secondary operations
  • Ability to manufacture a more intricate casting design with complex casting detail as the fill is under constant pressure

Expert Permanent Mold Manufacturing from Le Sueur

LSI has the controls in place to ensure consistent part integrity.  Our full-service Metallurgical and Testing Lab, Metrology Lab and NDT (Nondestructive Testing) applications such as (3) X-Ray processes, Liquid Penetrant and Pressure Testing ensures high-quality product for our customers.

We also offer gravity pour permanent mold casting for your additional permanent mold casting needs.

Start Your LPPM Casting Project Today

As a leader in manufacturing dimensionally challenging, complex aluminum castings, Le Sueur Incorporated is your best source for high-quality Low Pressure Permanent Mold castings. We are dedicated to providing our customers with the low pressure permanent molds that not only meet but exceed your expectations.

Discuss your LPMM project needs or request a quote today. 

Low Pressure Permanent Mold Casting Pedestal

Low Pressure Permanent Mold Casting Condux Assembly