Capabilities
CNC machining
The same people who plan the casting plan its machining, so features, datums and stock allowances are designed together. That cuts lead time, scrap and cost, and you receive finished parts from one supplier.
Our machine shop runs CNC lathes, CNC vertical machining centers and supporting equipment. We machine our own castings, and also steel, stainless steel, brass and plastic.
Many of our parts go into demanding applications that need pressure tightness and extensive machining. One production planner schedules casting, heat treat and machining together, so finished parts ship on one timeline.
More capabilities
- Sand castingGreen sand for repeat parts and air-set (no-bake) for larger, complex or low-volume castings.
- Permanent moldGravity-fed die casting for repeat parts with tighter tolerances and a better finish than sand.
- Heat treatmentCertified furnaces bring castings to the strength your print calls for, in-house.
- FinishingCastings cleaned, ground and blasted, ready for machining, coating or assembly.
- Prototypes & toolingCast aluminum prototypes in about a week, and tooling built and maintained in-house.
Related reading
When to use castings vs. machining
When does it make sense for a part to be a casting versus a machined or fabricated part? Identifying complex parts or parts that waste raw materials is an easy first step to determine a good candidate for conversion.
Read the article →Metal Casting Defects
Casting defects occur due to defective pattern design, improper melting of metal, defective molding material, or improper venting. Defects can also occur due to control limitations or human interference.
Read the article →A Guide To Non-ferrous Metal Alloy Casting
Metal casting is a complicated process that involves pouring liquid metal into a mold, allowing it to cool, and then extracting the product. Depending on the metal used and the required outcome, we utilize sand casting or permanent mold casting to create prototypes and products. Non-ferrous sand casting is highly efficient and cost-effective. Permanent mold utilizes gravity when pouring molten aluminum into molds (or dies) machined from cast iron or steel. Ermak takes pride in producing high-quality castings that are consistent, repeatable, and cost-effective. We customize the casting process to meet your needs using the best, most efficient non-ferrous metal casting process for your product.
Read the article →
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