Electrical Enclosures in an electrical room

The Go-To Electrical Enclosure Manufacturer for the Power & Energy Sector

American Plastic Molding is the electrical enclosure manufacturer power and energy OEMs rely on when a part has to survive the field.

Have Total Equipment Confidence With APMC as Your Electrical Enclosure Manufacturer

American Plastic Molding provides molded plastic components engineered for the grid and built to outlast the sun, heat, and voltage your power and energy equipment faces in the field. Our products best serve energy storage operations, data centers, power generation, and various electric and utility applications.

  • A proven electrical enclosure manufacturer: We select UV-resistant resins and validate them against solar-farm and oil-well exposure, so your enclosures don’t chalk, crack, or fail outdoors. We also hold various ISO and CMMC certifications.

  • Large-format capability: Our presses run up to 900 tons, letting us mold the big housings and enclosures grid and generation equipment demand without splitting the job.

  • Owners on the floor: As a 100% employee-owned shop, the people molding your parts hold a personal stake in getting every shipment right.

Our Power & Energy Services

As a full-service electrical enclosure manufacturer, American Plastic Molding has every solution your program needs, so you consolidate vendors and hold one partner responsible.

Plastic Injection Molding

As your electrical enclosure manufacturer, we mold custom plastic enclosures that shield sensitive electronics from moisture, dust, and UV across demanding energy applications.

Tooling & Mold Making

Stuck with legacy tooling at underperforming suppliers? We transfer, repair, and re-validate molds in-house, returning your energy parts to stable production quickly.

Assembly & Kitting

From EV charging components manufacturer programs to full enclosure builds, we assemble and kit finished units so your line receives complete parts, not loose pieces.

Overmolding

We overmold connectors, grips, and seals onto power components, bonding materials into one durable part that resists vibration, weather, and constant field handling.

Insert Molding

For power generation equipment manufacturer builds, we mold threaded inserts, terminals, and bus bars into place, delivering strong, conductive connections without secondary hardware.

Rubber Gaskets & Seals

Through our manufacturing partnership, we supply custom gaskets and seals that keep outdoor enclosures weather-tight, so moisture and dust stay away from your electronics. 

Supply Chain Management

With VMI, Kanban, and over $1M of resin on-site, we keep energy programs shipping on schedule even when raw-material supply gets tight elsewhere.

Work With an Electrical Enclosure Manufacturer That Ships On Time

Send us a print or a problem. American Plastic Molding responds with real timelines, real capability, and a partner that treats your launch like our own.

Built for the Field, Backed by Owners Who Answer the Phone

When an energy component fails in the field, it takes a substation, a charging site, or a generation asset down with it. American Plastic Molding engineers against that outcome. We pick resins that survive UV, heat, and chemical exposure, mold them on presses up to 900 tons, and back every program with a 100% employee-owned team. As an electrical enclosure manufacturer serving power and energy, we build parts that hold up and people who stay accountable.

Harsh-Environment Engineering

American-Made for a Reshoring Market

FAQs About Our Power & Energy Sector Services and Solutions

What certifications does your electrical enclosure work carry?

American Plastic Molding holds ISO 9001, ISO 14001, CMMC Level 1, and ITAR registration, giving power and energy OEMs the compliance credibility their programs demand.

APMC molds in the United States and ships nationwide plus to Canada and Mexico, so your energy program isn’t limited by our location.

Yes. American Plastic Molding runs presses up to 900 tons, molding the large-format enclosures and housings that power generation and energy-storage equipment typically require.

Convert Your Molding, Tooling, Assembly, and Supply Chain Under One Roof at APMC

Talk to an APMC engineer and find out what a true one-stop partner looks like in practice.

"*" indicates required fields