What is contract manufacturing?
Contract manufacturing means an outside shop builds your parts to your prints, under your specification, as an extension of your own production. Carbotech Manufacturing takes build-to-print work at its Roebuck, South Carolina plant. The shop works in aluminium, stainless steel, and mild steel, from first-article pieces through repeat production runs.
Companies outsource for two reasons. Either the work sits outside what their own floor can do, or their floor is full and a customer is waiting. Both situations punish a bad vendor choice. Carbotech Manufacturing keeps cutting, welding, machining, assembly, paint, and inspection in one building, so a job never sits waiting on a second shop. Mechanical and electrical engineers work on site. A print with a problem gets a phone call rather than a pile of scrap.
What our contract manufacturing work includes
- Build-to-print production from your drawings and specification
- Laser cutting up to one inch thick on a five-foot by ten-foot bed
- Sawing, plasma cutting, and 60-ton ironworker capacity for heavier sections
- Welding in aluminium, stainless steel, and mild steel
- Machining, mechanical assembly, and in-house paint
- Inspection under a quality system built to ISO 9001:2015 standards
- Registration for government contract work, including UEI and CAGE codes
- Net 30 terms and delivery dates we quote in writing
How build-to-print work moves through our shop
Outsourced work fails in predictable places. A print gets misread, a revision never reaches the floor, or the second run does not match the first. We built the flow to close those gaps.
Print and revision check
We confirm the drawing revision, materials, tolerances, and finish callouts before anything gets quoted.
Quote and schedule
You get pricing and a delivery date in writing, based on real capacity rather than optimism.
First article
On a new part, we run and check one piece against the print before committing the rest of the material.
Production
Cutting, welding, machining, and assembly run in sequence in one building, with inspection at each handoff.
Finish and delivery
Parts get painted, checked against the drawing, and shipped to the agreed date.
Why do repeat parts drift out of spec?
Drift usually starts with undocumented process. One operator sets up a job by memory, then a different operator runs the next batch. Add an unrecorded print revision or a change in material supplier, and the tenth run stops matching the first. Written procedures and inspection records are what keep repeat parts consistent.
Reference — ISO 9001 quality management systems
Consistency is a documented system, not a promise
Any shop will tell you it holds tolerances. The question is whether it can show you how. ISO 9001 sets out the requirements for a quality management system. It covers organisations that need to demonstrate they can consistently deliver product meeting customer and regulatory requirements. Those requirements apply to any manufacturer regardless of size.
Carbotech Manufacturing runs a quality system built to that standard, with the certification audit targeted for the first quarter of 2027. We state the status plainly rather than implying a certificate we do not hold yet.
The shop is also registered for government and prime contract work under UEI EJSDP7E6G6T6 and CAGE code 14S27, operating in NAICS 333243 and 332312. Buyers who need a registered supplier can verify those numbers before issuing a purchase order.
Who handles contract manufacturing in Spartanburg County?
Carbotech Manufacturing builds to print at a 14,000-square-foot plant at 129 Old Airport Road in Roebuck, South Carolina. The shop opened in 2023, backed by a Canadian parent company that has built industrial equipment for sawing and planing mills since 1987.
Frequently asked questions
Yes. Build-to-print means your print governs. If our engineers see a tolerance, weld callout, or material choice that will cause trouble downstream, you get a phone call before we cut. The decision stays yours, and nothing changes on the drawing without your written approval.
Yes. Repeat work runs under written procedures with inspection at each handoff, which is what keeps the last piece matching the first. Volume varies job to job here rather than following a fixed minimum, so send the quantity and the schedule along with your prints.
Yes. The shop holds UEI EJSDP7E6G6T6 and CAGE code 14S27. It operates under NAICS codes 333243 and 332312, covering sawmill and woodworking machinery and fabricated structural metal. Buyers who require a registered supplier can verify those numbers before issuing a purchase order.
That is common work for us. Overflow jobs usually arrive with prints already proven on your own floor, which shortens the review step. Tell us the drawing revision, the quantity, and the date you need parts, and you get a schedule back based on real capacity.
Standard terms are Net 30 once an account is open. Jon Comber handles scope, quoting, and terms directly rather than routing questions through a sales desk. Machines we build carry a 12-month warranty, and we stand behind the fabrication work on every job.
Ready to send us your prints?
Contract manufacturing works when the shop reads your print carefully and tells you what it sees. The tenth run should match the first. Carbotech Manufacturing keeps cutting, welding, machining, finish, and inspection in one building in Roebuck, South Carolina.