Lynwood Pattern Service, Inc.

603 South Hope Avenue   Ontario, CA 91761
Office:  (310) 631-2225 Fax:  (310) 631-2453
Aluminum Sand and Permanent Mold Foundry


  • 24,000 square foot facility in the heart of the Greater Los Angeles Area
  • Eight-Station Molding (models #212 and #214 Osborne Squeezers)
  • Seven Melting Furnaces
  • 100 pal Degassing Machine
  • Redford #4 Core Blower; Redford #HP-22RA Shell Core Machine; Dependable #100 Shell Core Machine
  • Ten Station Saw and Grinding Department
  • Wheelabrator and Shot Blast Cleaning Machines
  • Pattern Shop

  • Flask sizes of 10”x 10” to 24”x 30”
  • Aluminum Sand Castings up to and exceeding 100 lbs in alloys A356, 356, and 319 – Heat Treated to specifications
  • Cores less than 1 oz up to 100 lbs in shell, hot box and cold processes.
  • Quantities – large or small

  • Green Diamond Sand – noted for excellent dimensional and detail accuracy – is used for sand molding
  • The finest core sands and binders are used for core production
  • Grain modification of alloys to improve physical and mechanical properties for better machining, strength and pressure tightness of aluminum castings
  • Quality Control that emphasizes proactive problem solving and a strict control of production processes and material

  • We offer assistance in all areas of aluminum sand casting design, tooling, and production
  • We maintain an “in-house” pattern shop reducing down-time if tooling require repairs or modifications and have the ability to create our own gating systems
  • Special delivery schedules can be accommodated and all schedule times are always met
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