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.

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Experience. Knowledge. Service.

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Custom Carbon & Graphite Machining

15 Feb

Graphite and Oxidation

A recurring issue we hear about from people using graphite components is graphite oxidation. This term describes unwanted redox reactions where oxidizing agents modify graphite properties negatively. Hence, especially at high temperatures, steps need to be taken to eliminate oxygen presence so that oxidation and deterioration of graphite components is avoided. Semco strives to educate our clients who order custom graphite components about the proper environments in which those components should operate. However, new clients will come to us expressing their frustration that graphite components are failing long before they should. One reason to work with the synthetic graphite experts...

01 Feb

Molded Graphite Rods

Graphite is well known for its corrosion resistance and good thermal conductivity. At Semco, we have noted an uptick in a particular mechanical application of synthetic, high density graphite: molded graphite rods. With this large increase in requests for molded graphite rods in various diameters, we have decided to add a new piece of equipment that would allow us to substantially increase the volume of rods produced. This dowel rod machine takes high density graphite blocks, which can be machined with more precision than with less dense material, and shapes them into rods that are useful across industries, in a...

14 Dec

Military Applications for Carbon Graphite Materials

Synthetic and even natural graphite are used by the government in several military applications due to the unique properties of graphite materials, including their high strength, thermal stability, electrical conductivity, and lightweight characteristics. Warfare is an extreme human activity and is practiced in extreme conditions. Carbon graphite and extreme conditions are no strangers, of course. When exposed to high temperatures, graphite materials have the advantage over metals in that they do not soften or warp, and high pressures do not force it out into different shapes. Natural graphite, and to a greater extent synthetic graphite, are thus highly stable materials...