Over 50 Years Exceeding Customer Expectations

An ISO-9001: 2015 Company

Experts in the Industry

You are experts in your industry, and we are experts in ours. Together, we can create custom solutions to meet your goals, budget, and expectations.

Client Consultations

Our expert client consultations produce specialty pieces. No matter how unique the application, we go straight from sketch to three-dimensional solution.

Huge Inventory

Our huge inventory of raw materials, grades, shapes, and sizes allows us to respond quickly to customer demands, so that we can begin machining your product immediately.

Recycle With Us

Put some green in your pocket by going green with your obsolete carbon and graphite materials! Recycle with us, and you will reduce your liability and your ecological footprint.

Carbon and Graphite Machining and Recycling Facility - Semco Carbon

Custom Carbon & Graphite Machining

Fifty Years of Experience

Our custom carbon and graphite machining capabilities are engineered from the ground up with our client's budget, goals, and expectations in mind. No matter the tolerance, no matter the finish, no matter how specific your need, our years of experience coupled with the most advanced machining resources will keep your organization humming with minimal delay. We aren’t just experts in carbon and graphite machining—we’re also experts in client consultation and collaboration. We’re in the business of creating solutions, no matter how unique the problem.

Carbon & Graphite Material Recycling

We’ll purchase your obsolete carbon and graphite materials for reclamation or proper disposal. Less waste in the landfill, more green in your pocket — just the kind of win-win solution we’re in the business of creating.

Learn More

Experience. Knowledge. Service.

REQUEST A CONSULTATION

Custom Carbon & Graphite Machining

25 Nov

Innovations in Graphite Machining Techniques: What's Coming in 2026?

Over the past two decades, the tech world has conditioned us to expect lightning-fast innovation. Now, every few months brings new AI capabilities, faster processors, and software that can do things we couldn't imagine a year ago. It's easy to assume that every industry moves at this pace. But that's not how innovation works in manufacturing, and it's certainly not how it works in graphite machining. Not that graphite machining doesn’t involve cutting-edge technology. It does. We, of course, incorporate automated systems and CAD/CAM machining into our workflows. But at Semco, we keep before us a picture of progress that...

19 Nov

How Custom Graphite Parts Improve Efficiency in the Steel Industry

Steel production has never had a reputation for being clean or efficient. For over a century, massive blast furnaces consumed enormous amounts of coal and iron ore while belching CO2 into the atmosphere. But the steel industry has been changing, slowly but surely. Electric arc furnaces now dominate steel production in the United States, and the shift toward scrap recycling has reduced both energy consumption and emissions. At Semco, we've watched these changes closely because custom graphite parts play a significant role in making modern steelmaking more efficient. The electrical conductivity and thermal conductivity of graphite, along with its thermal...

11 Nov

Carbon Graphite: Sustainability and Green Manufacturing Practices

At Semco, we pay close attention to developments in synthetic graphite production, not just because we machine graphite components daily, but because our customers increasingly ask about sustainability. The truth is, graphite manufacturing has never been particularly "green." Synthetic graphite production consumes enormous amounts of energy, and the recycling of graphite has historically lagged behind other materials. As we’ve written about in a previous blog, we were called in to extract large graphite electrodes that had been disposed of in an Iowa cornfield. Yet we're seeing real changes in how graphite gets made and how it's being recovered and reused....