San Bernardino's
Injection Specialists
Family-owned and operated since 1993. Over 30 years of precision injection molding, product design, and full-service manufacturing in the Inland Empire.
We Are a Full-Service Manufacturing Partner
Tombyll Plastics was founded in San Bernardino, California with a single purpose: provide manufacturers, product developers, and entrepreneurs with an end-to-end plastic manufacturing solution — under one roof.
Over three decades, we've grown from a small precision molding shop to a full-service manufacturer with 10 injection molding machines, in-house engineering and tooling, rapid prototyping, assembly lines, packaging, and a drop-ship fulfillment program serving clients worldwide.
What makes us different? We treat every client's project like our own. Our engineers ask the right questions. Our machinists take pride in their work. And our team delivers what we promise — on time, at the right price, every time.
Everything In-House, Under One Roof
Production Floor
10 injection molding machines from 15 to 300 tons running 24/7. Capable of producing over 1 million parts per month.
Tooling Shop
In-house CNC machining and EDM for mold fabrication and repair. We build and maintain your tooling on-site.
Prototyping Lab
FDM 3D printers for rapid prototyping. First parts in 24 hours. No minimum order.
Quality Control Lab
Dimensional inspection, CMM measurement, incoming material testing, and SPC monitoring.
Assembly Lines
Custom assembly fixtures and jigs. Simple to complex 20–30 step product assembly.
Warehouse
160-pallet finished goods storage. Order fulfillment and worldwide drop-ship operations.
Strategically Located in Southern California
We are located at 236 W. Orange Show Lane, San Bernardino, CA — within miles of 6 major freeways, making us one of the most accessible manufacturing facilities in the Inland Empire.
San Bernardino, CA 92408
What Sets Us Apart
One Partner, End-to-End
Design → tooling → molding → assembly → packaging → shipping. No sub-contractors, no finger-pointing — just results.
Quality You Can Verify
ISO 9001 quality program. 99% acceptance rate. SPC monitoring and first-article inspection on every new job.
Speed That Matters
Prototypes in 24 hours. Production quotes in 24 hours. No black holes. We respect your timeline as much as you do.
Honest Communication
We'll tell you when injection molding isn't the right choice. We'll flag design issues before they become expensive problems.
Pricing You Can Count On
Parts from $0.05 each. Transparent tooling quotes. No hidden fees. Our goal is to make manufacturing accessible — not opaque.
Serving Clients Worldwide
Local pickup or worldwide drop shipping. We serve startups, SMBs, and Fortune 500 companies across the US and globally.
Ready to Work Together?
Tell us about your project. We offer free consultations and respond to all inquiries within 24 hours.