Metal Injection Molding Service

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MIM(metal injection molding) is a mixed manufacturing technology that combines plastic injection molding and metallurgy flexibility of metal powder. It is mainly used in the volume production of custom, small, complex metal parts. MIM is an innovative technology that is applied in markets of medical, aerospace, electronics, automotive, etc. 2fprototypes is experienced in molding and maintain a good relationship with our suppliers. Welcome to contact us if you are looking for metal&plastic injection molding solution.

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Our Injection Molding Capabilities

We have 30+ injection molding machines from 80T to 470T that can produce common size injection molded parts. The tonnage calculation/clamping force is one of the key factors for quality and cost. It keeps the tooling closed during the injection process. The higher tonnage, the higher weight of tooling it can keep.

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Surface Finish List

We work with reliable and excellent suppliers if you have other demand. Just feel free to contact us.

⭐ Spray painting
⭐ Silk-screen
⭐ Transfer-printing
⭐ Electroplating
⭐ Laser etching
⭐ Anodizing
⭐ Scouring/brushing

⭐ High glaze
⭐ UV-finish
⭐ Embossing
⭐ Polishing
⭐ Cleaning
⭐ Bake finish
⭐ Fuming PC

Why Need Metal Injection Molding?

High density and strength

Metal parts from MIM keep dense material from 96% to 98%, which ensures durability and strength. The density is strong enough for secondary processing of electroplating, heat treating, machining, etc.


Machining is highly cost-effective in low-volume production. Mold has obvious advantage in mass production. MIM produces mass metal parts in one mold to ensure repeatability and consistency. Parts by MIM little tolerance.

Complex product design

MIM is suitable for metal parts with complex shapes without additional processing and assembly. Metal powder material can consist and bond by injection molding. MIM is easier to achieve thin wall and produce durable parts.

How does Metal Injection Molding work?

Prepare the feedstock

The feedstock for MIM is powder mixes of metal powder and organic binder. The metal powder to organic binder ratio is about 60%:40%. Metal powder and binder are placed into the device for mixing. The organic binder melt and coats on the metal powder uniformly while heating in the device. The materials are cooled and then granulated into mixing pellets.

Injection molding

The process of metal injection molding in the injection molding machine is identical with plastic injection molding. The pellets heat and be injected into the mold. The finished parts are ejected after cooling.


The binder can result in the size of intended finished parts. This step will remove the first stage binder. Depending on the type of binder, the removal can be catalytic, aqueous, or solvent-based. The removal can not destroy the shape of the finished parts.


In the last step of sintering, the remaining binder is removed completely. The binder is evaporated under the heating temperature while the particles fuse better. The void space between the particles is eliminated to the intended size.

ISO Certified

We have pass certifications of ISO 9001, IATF 16949, ISO/IEC 27001 to guarantee your parts quality and information security.

ISO 9001: 2015

IATF 16949: 2016

ISO/IEC 27001: 2013

The internationally recognized standard for Quality Management Systems (QMS). 

ISO 9001

A common automotive quality system requirement based on ISO 9001. It requires specifically to the automotive industry. 
IATF 16949

Security standard that outlines the suggested requirements for building, monitoring and improving an information security management system. ISO/IEC 27001


Every sheet metal part is packed well with wooden case or carton. According to customer requirement, we can coordinate special packing method. Just contact us, we can work with the solution together.

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