Metal Injection Molding | Precision Machining | Metal 3D Printing
About INDO-MIM Inc.
INDO-MIM Inc. is the U.S. manufacturing arm of INDO-MIM, a global leader in precision metal components. We produce high-volume, high-accuracy parts through Metal Injection Molding (MIM), Metal Additive manufacturing, Precision Machining, and integrated Automation solutions.
Our U.S.-based operations enable faster lead times, local engineering support, and a secure domestic supply chain for Medical, Aerospace, Defense, and Industrial customers. We operate under stringent quality standards including ISO 9001, ISO 13485, AS9100, FFLC (Type 7, 8, and 10), and Clean Room Class 7 supporting regulated industries that require precision, traceability, and production reliability.
Core Strengths
- Proudly manufactured in the USA for global markets, with our production facility in San Antonio, Texas.
- 170,000Sqft installed capacity with room for expansion up to 360,000sqft
- Secure operations supporting controlled and regulated programs (ITAR)
- Vertically integrated manufacturing and quality systems.
- Strong focus on Defense, Aerospace, Automotive, Medical, and Industrial markets
- End-to-end production under one roof
FFL Statement
INDO-MIM Inc. San Antonio TX location holds multiple Federal Firearms Licenses (FFLs) issued by the U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), including
- Type 07 (Manufacturer of Firearms – other than destructive devices)
- Type 08 (Importer of Firearms and Ammunition – other than destructive devices)
- Type 10 (Manufacturer of Destructive Devices and related ammunition)
These licenses authorize INDO-MIM Inc. to manufacture, import, and support regulated firearm and defense components in full compliance with applicable federal regulations. All activities are conducted under strict ATF controls, documented traceability, secure handling, and INDO-MIM Inc.’s established quality and compliance systems.
Core Manufacturing Capabilities
Metal Injection Molding (MIM)
Metal Injection Molding (MIM) is an advanced manufacturing process that combines the design flexibility of plastic injection molding with the strength and performance of wrought metals. INDO-MIM Inc. specializes in producing complex, high-precision metal components in medium to high volumes with excellent repeatability and cost efficiency.
MIM is ideal for intricate geometries, thin walls, micro-features, and tight tolerances that are difficult or expensive to achieve through conventional machining or casting.
The MIM Process – Step by Step
- Feedstock Preparation: Fine metal powders are blended with a proprietary binder system to create a homogeneous feedstock. This ensures consistent flow behavior and uniform material properties throughout the molding process.
- Injection Molding: The feedstock is injected into precision-engineered molds to form the “green part.” This step enables near-net shape production with high dimensional repeatability.
- Debinding: The binder material is carefully removed through thermal and/or solvent processes. This produces a fragile “brown part” while maintaining dimensional integrity.
- Sintering: The debound parts are sintered at high temperatures in a controlled atmosphere furnace. During sintering, the metal particles fuse together, resulting in a dense, high-strength component with excellent mechanical properties.
- Secondary Operations (as required): Depending on application requirements, parts may undergo additional processes such as heat treatment, machining, surface finishing, coating, or assembly.
Materials:
INDO-MIM provides a range of MIM metal materials that are useful for a wide variety of applications. Low carbon and high alloy steels for case and through hardening requirements, a range of austenitic, ferritic, martensitic and precipitation hardening stainless steels, titanium, soft magnetic alloys as well, Co and Ni base super alloys and select non-ferrous alloys.
In-House Tooling Facility:
- Complete mold design and tool development under one roof
- Faster product development and reduced lead times
- High-accuracy tooling for tight tolerances and complex geometries
- Improved tool life and cost efficiency
ISO Class 7 Cleanroom Assembly & Packaging
INDO-MIM Inc operates a 1,000+ sq. ft. ISO Class 7 certified cleanroom, integrated within a 5,000+ sq. ft. controlled white room facility. The cleanroom is specifically designed for sub-assembly, final assembly, packaging, and sterilization support of medical devices, ensuring strict contamination control and regulatory compliance.
Our controlled environment supports low to mid-volume production programs, with an annual capacity ranging from 1,000 to 50,000 assemblies, depending on device complexity.
Metal 3D Printing (Additive Manufacturing)
We offer advanced metal 3D printing services in the USA, specializing in high-volume Binder Jetting and precision Laser Powder Bed Fusion (LPBF/SLM) technologies for industrial applications. We deliver production-grade metal components with superior dimensional accuracy, surface finish, and material performance—ideal for aerospace, defense, automotive, medical, and industrial sectors.
Binder Jetting Metal 3D Printing
Our binder jetting process enables:
- High-speed production of complex metal parts
- Cost-effective manufacturing for medium to high volumes
- Excellent repeatability and scalability
- Design freedom without traditional tooling constraints
Binder jetting is especially suitable for geometries that are difficult or expensive to manufacture using conventional machining or casting methods. It is optimized for batch production, multi-part nesting, and high-throughput industrial manufacturing.
Laser Powder Bed Fusion (LPBF / SLM)
In addition to binder jetting, we provide LPBF / Selective Laser Melting (SLM) capabilities for applications requiring:
- Fully dense, high-strength structural components
- Fine feature resolution and intricate internal geometries
- Complex lattice structures and lightweight designs
- Rapid prototyping and low-to-medium volume production
LPBF is ideal for critical applications where mechanical performance, density, and metallurgical integrity are paramount—particularly in aerospace, defense, and medical implants.
Advanced Metal 3D Printing Equipment
We operate industry-leading additive manufacturing platforms, including:
- HP Inc. Metal Jet technology – engineered for high productivity and industrial-scale manufacturing
- Desktop Metal binder jet systems – optimized for precision metal part production and rapid scalability
- Industrial-grade LPBF/SLM systems for high-performance, fully dense metal components
Our diversified machine portfolio allows us to select the optimal platform based on part complexity, material requirements, mechanical performance targets, and production volumes—ensuring the right balance between cost, scalability, and technical performance.
Precision Machining in the USA
Beyond MIM and additive manufacturing, INDO-MIM Inc. is a full-scale provider of precision CNC machining Our machining expertise evolved from critical secondary MIM operations into independent machining programs for high-accuracy components, including medical device manufacturing.
Our machining capabilities include:
- CNC turning and milling
- Drilling, tapping, threading, and reaming
- Precision bores and tight-tolerance features
- Surface finishing and value-added assembly
Operating from our Reynosa, Mexico facility (35,000 sq. ft., expandable to 70,000 sq. ft.), supported by 60+ skilled employees, we deliver cost-efficient, scalable machining solutions for North American customers.
Automation & Special Purpose Machine (SPM) Solutions
We also provide automation solutions in the USA, including customized Special Purpose Machines (SPM) designed to optimize production efficiency and quality.
Our automation capabilities include:
- Robotics integration
- Vision inspection systems
- Conveyor and material handling systems
- Smart controls and synchronized manufacturing lines
These turnkey automation systems enhance productivity, reduce manual intervention, and ensure repeatable quality across MIM, machining, and assembly operations.
Why Choose INDO-MIM Inc.?
- Leading provider of Metal Injection Molding in the USA
- Industrial-scale metal 3D printing services in the USA
- Advanced precision machining in the USA
- Fully automated and vertically integrated manufacturing
- Domestic production in San Antonio, Texas
- Secure and compliant manufacturing for regulated industries
For companies seeking U.S.-based Metal Injection Molding, CNC machining, or Metal 3D printing services, INDO-MIM Inc. delivers precision, scalability, and production reliability under one roof.
