Custom Injection Molding · Columbus, Ohio
Precision plastic components, engineered and molded in the USA
From DFM review and mold build to validated production and finished assembly, VPI Engineering supports demanding programs across medical, automotive, industrial and consumer markets.
- Group Founded
- 1998
- Presses, 55–720 ton
- 42
- On-time delivery, trailing 12 mo
- 99.6%
- Customer defect rate
- <50 PPM
Group Founded
Presses, 55–720 ton
On-time delivery, trailing 12 mo
Customer defect rate
What we do
A single supplier from concept through packaged production
Programs stall when tooling, molding and assembly sit with three vendors. VPI owns the whole chain, so accountability never moves.
In-House Tooling
Mold design, build, sampling and preventive maintenance under one roof — SPI Class 101 through bridge tools.
Scientific Molding
Decoupled process development with in-cavity pressure monitoring for repeatable, transferable process windows.
Regulated Quality
ISO 9001 and ISO 13485 systems, PPAP/APQP documentation and full lot traceability from resin to shipment.
Assembly & Fulfillment
Ultrasonic welding, printing, testing, kitting and drop-ship programs that ship finished goods, not just parts.
Products & services
Molded solutions built around your application
Six core production programs, each backed by documented process control and in-house tooling support.
Technical Molding
Precision Technical Components
Tight-tolerance structural and functional components molded in engineering-grade resins.
Technical detailsMulti-Material
Overmolding & Insert Molding
Two-shot, insert and TPE overmolded assemblies for sealing, grip and electrical isolation.
Technical detailsRegulated Molding
Medical & Cleanroom Molding
ISO Class 8 cleanroom cell for medical device and diagnostic components.
Technical detailsTechnical Molding
Large Part & Structural Molding
High-tonnage molding for enclosures, panels and load-bearing structures.
Technical detailsTooling
Custom Tooling & Mold Build
Prototype through Class 101 production tooling, built and maintained in-house.
Technical detailsSecondary Operations
Value-Added Assembly & Finishing
Ultrasonic welding, pad printing, kitting and packaged sub-assemblies.
Technical detailsEngineering partnership
We review every part before steel is cut
Each quote package includes a design-for-manufacturing review: wall thickness, draft, gate location, shrink behavior and tolerance feasibility. Moldflow simulation validates fill and warp before tooling is released, which removes the expensive surprises that usually appear at first sample.
- DFM report returned with every technical quote
- Moldflow fill, pack and warp simulation
- Material recommendation against the full duty cycle
- Tooling strategy matched to program volume
Industries served
Markets that rely on documented process control
Medical & Life Sciences
Cleanroom molded components with validated processes, lot traceability and documentation built for regulated submissions.
Automotive & EV
PPAP-ready technical parts, under-hood resins and connector components supported by APQP planning and capability studies.
Industrial Equipment
Structural enclosures, wear components and load-bearing parts for machinery, pumps and material handling.
Consumer & Housewares
High-cavitation, cosmetically critical parts with in-mold decoration and retail-ready packaging.
Electrical & Electronics
Flame-rated UL 94 V-0 housings, insert-molded terminals and EMI-shielded enclosures.
Packaging & Closures
Closures, caps and containers running high-cavitation, fast-cycle tooling with automated takeout.
Have a print ready? Get a molded-part quote in 48 hours.
Send drawings, 3D models or a description of your application. An applications engineer reviews every submission.
Technical insights
From the VPI engineering blog
Design for Manufacturing
Designing for Moldability: Seven Rules That Cut Tooling Cost
Uniform walls, generous draft and honest tolerances remove more cost from a molded program than any purchasing negotiation.
7 min read
Process Engineering
Scientific Molding Explained: Why Process Data Beats Operator Intuition
Decoupled molding and in-cavity pressure sensing turn a subjective setup into a repeatable, transferable process window.
6 min read
Materials
Resin Selection for Harsh Environments: PPS, PEI and PA66 Compared
Continuous-use temperature is only the starting point. Chemical exposure, creep and moisture uptake decide the winner.
8 min read