
Small Parts, High precision Plastic Injection Molding

Precision Tooling for Complex, Small-Scale Components
ENGINEERED FOR TIGHT TOLERANCES AND CONSISTENCY
PTI specializes in molding very small, highly detailed plastic components where precision, repeatability, and process control are critical. From micro features and thin walls to tight dimensional tolerances, our molding processes are engineered to reliably produce parts that many molders struggle to run consistently.
Our experience spans medical, electronics, industrial, and specialty applications where part size is small — but performance requirements are anything but.

Small & Micro injection molded parts
ADVANTAGES OF Small Part PLASTIC INJECTION MOLDING
- Precision & Repeatability
Small parts demand tight tolerances and stable processes. Our scientific molding approach ensures consistent fill, pack, and cooling — even on extremely small geometries.
- Complex Geometries
Micro features, thin walls, fine details, and intricate designs can be molded directly into the part, reducing secondary operations and assembly complexity.
- Material Performance
We routinely mold engineered resins used in medical, electronic, and industrial applications, maintaining material integrity and part performance despite small shot sizes.
- High Value Applications
Small parts are often critical components within larger assemblies. Reliable molding reduces downstream failures, scrap, and assembly risk.
Photo Gallery of small parts






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Design for Manufacturing Guide
Made in the USA

Mold Design
Mold Design is a crucial step in the injection molding process. Once you’ve finalized your part in CAD software for fit and function, it must then be transformed into a design for molding to ensure the capture of all the specified details. In some cases, certain features of the part design may not be manufacturable via the injection molding process.
At PTI, we collaborate with you to achieve the best possible design for manufacturability. In fact, we have a FREE guide to help you with this.

