our portfolio of
Metal Injection Molding Companies

Redstone Manufacturing is a U.S.-based company providing metal injection molding services through its manufacturing facilities in China and India. Our overseas locations and U.S. operations share a singular vision and commitment to creating quality parts with competitive pricing. Even with manufacturing locations overseas, we still offer attractive lead times and simple implementation compared to other U.S. companies.

Metal Injection Molding vs. CNC Machining

Metal Injection Molding Services

  • Uses custom mold (requires additional lead time and cost)
  • Expensive to redesign (requires the creation of new mold)
  • Fastest part production
  • Cheaper cost per part with high quantity runs 
  • Ideal for producing parts made from softer plastics
  • Rubber and flexible materials can use this method

CNC Machining Services

  • Uses CAD file for production
  • Allows for cheaper design iteration 
  • Rapid part production (not as fast as injection molding)
  • Cheaper for smaller quantity runs
  • Best for harder plastics 
  • Larger variety of materials available
  • Allows for tighter tolerance and surface finishing

FAQ's ABOUT OUR
METAL INJECTION MOLDING SERVICES

Yes. This process often creates intricate parts with high strength and wear resistance and has gained popularity over the past twenty years. Industries that now use metal injection molding (MIM) include electronics, consumer products, aerospace, firearms, and medical.

Metal injection molding offers manufacturers a variety of material options. It’s a cost-effective way to produce a high-volume of complex parts; it’s faster than investment casting, net-shape parts are created with minimal waste, and the process can yield parts with complex features. Parts manufactured are usually smaller; as parts get larger they also get more expensive to produce, and high material cost are all disadvantages of metal injection molding.

Both MIM and die casting involve injecting metal into a die, but this is where the similarities end. Die casting typically uses aluminum or zinc alloy while MIM uses steel alloys. MIM is more time-intensive and involves mixing metallic powder with a thermoplastic binder, which is added to a die and then undergoes various heat treatments to achieve the final product. With die casting, molten metal is pushed into metal dies, allowed to cool; then, the final part is removed.

First, finely powdered is mixed with a thermoplastic binder that is injected into a die. Once that material sets, it goes through a number of healing processes to remove the binder and further harden the part. 

METAL INJECTION MOLDING MATERIALS

Redstone’s Manufacturing’s Metal Injection Molding Services utilize both, low alloy steel and stainless steel injection molding.

LOW ALLOY STEEL
metal injection molding

Low alloy steel injection molding is ideal for parts that require strength, durability, and hardness. There are a variety of low alloys steels that have different qualities based on percentages of added alloys.

STAINLESS STEEL
METAL INJECTION MOLDING

Stainless steel injection molding helps enhance corrosion resistance, strength, and ductility of this metal. Different hardening treatments are available depending on the part’s application

WHAT PEOPLE SAY ABOUT US
We were looking for a manufacturing expert in China and Redstone was able to provide complex components and assemblies quickly and with impeccable quality. We value our relationship with Redstone and view them as an extension of our own company.
Redstone Manufacturing produces metal injection molded steel parts for us. These are high-precision components with a tolerance less than half a thousandth of an inch. Redstone is a bankable supplier; they deliver quality parts on time.”

Metal Injection Molding Solutions used by:

Metal Injection
Molding BROCHURE

Get more information about our metal injection molding solutions

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