Our Story: Precision Manufacturing Since 2018
AMS Plastics operates with a unique cross-border structure, maintaining executive offices in El Cajon, California while operating a substantial 75,000 sq ft manufacturing facility in Ciudad Industrial Nueva, Tijuana, Mexico.
In March 2018, AMS Plastics was acquired by Westfall Technik, a strategic move that enhanced our resources, stability, and network capabilities while maintaining our specialized focus on healthcare and consumer packaging for OEMs.
This dual-location approach provides strategic advantages for serving North American markets, combining California-based project management and client relations with manufacturing efficiencies in Mexico. Our evolution reflects a commitment to growth, precision, and meeting the complex demands of specialized packaging sectors.
Under the leadership of President Tom Plein, we continue to build on our foundation as a trusted, specialized custom injection molder, delivering quality and reliability to healthcare and consumer packaging OEMs across borders.
Our Leadership
At AMS Plastics, our strength lies in our experienced team dedicated to delivering precision and partnership to every OEM client.
Tom Plein
President
With extensive expertise in injection molding and cross-border manufacturing, Tom leads AMS Plastics with a focus on operational excellence and customer-centric innovation.
Expertise & Commitment
Cross-Border Excellence
Our leadership manages a seamless operation between El Cajon offices and our 75,000 sq ft Tijuana facility.
Quality Focus
We maintain strict standards for healthcare compliance and consumer packaging precision.
Under the Westfall Technik network, our team combines deep industry knowledge with a practical approach to solving complex manufacturing challenges for OEMs.
Proven Leadership
Guiding AMS Plastics with decades of manufacturing expertise and client-focused vision.
Our Commitment to Excellence
At AMS Plastics, our mission is to deliver precision injection molding solutions that empower healthcare and consumer packaging OEMs to succeed. We are dedicated to quality, innovation, and building lasting partnerships.
Precision & Quality
Every component we manufacture meets the highest standards of accuracy and reliability, especially critical for healthcare packaging where compliance is non-negotiable.
Cross-Border Efficiency
Our unique operational structure—offices in El Cajon, CA and a 75,000 sq ft facility in Tijuana, Mexico—delivers strategic advantages in cost, logistics, and scalability for our clients.
Customer-Centric Partnership
We view every project as a collaboration. Our team works closely with you from design to delivery, ensuring your vision is realized with exceptional service and support.
Driven by Core Values
Reliability
Consistent on-time delivery and transparent communication.
Innovation
Leveraging the Westfall Technik network for advanced resources and technology.
Integrity
Ethical operations and unwavering commitment to our promises.
Continuous Improvement
Always refining our processes to exceed industry standards and client expectations.