Hahn & Clay
Machining Services
Powering Industry with Century-Strong Machining
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Machining Services
With more than 75 years of proven expertise, Hahn & Clay stands as one of America’s premier machine shops—trusted by industries ranging from construction and forging to forestry, mining, marine, oil & gas, petrochemical, and plastic injection molding.
Our customers rely on us for precision‑engineered parts, rapid turnaround, and uncompromising quality. Backed by a 220,000‑square‑foot production facility, we offer some of the largest machining capabilities in the nation, including work envelopes up to 35'‑6" in diameter, 125' in length, and 800,000 lbs. in weight.
As one of the largest machine shops in the United States, Hahn & Clay is a powerhouse resource for the Gulf Coast region. Our highly mobile field service teams, combined with the strength of our in‑house major fabrication department, give customers a unique competitive advantage—complex projects completed on time, on budget, and all under one roof.
Major Machinery:
Vertical Boring Mill
200 ton - 35' - 6" diameter x 20' rail height
Horizontal Boring Mill
8" spindle, 12' vertical movement, 30' table travel, 20' between head and tailstock
Draw Bar Shaper
10" square bar with live spindle
Precision Roll Grinder
3' diameter x 20' long, 15 ton capacity
Planer
5' height x 20' stroke
Lathe
50' center to center max., 102" diameter swing max.
Drills
8' arm max. (radial arm, horizontal, magnetic, and portable)
CNC
18" max. height 30" length x 15" wide
Hahn & Clay delivers precision machining services designed to tackle the toughest challenges in the field or in our shop. Our expert technicians and advanced equipment allow us to perform a wide range of specialized operations, including:
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Removal of broken bolts or studs of any size
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Custom machine weld preparations
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Precision pipe cutting and specialized end prepping
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Boring and honing of holes to exact specifications
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Flange and seat facing up to 35 feet
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Machining of “O”‑ring grooves in all flange types
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Line boring for accurate alignment and restoration
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Machining of Grayloc® and Ring Joint flanges
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Valve seat machining and refurbishment
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Machining of journals and thrust collars on fans, turbine rotors, and motors
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Thread repair and restoration
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Milling of horizontal joints, motor base pads, and critical mating surfaces
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Hahn & Clay operates one of the Gulf Coast’s largest and most capable machine shops, backed by more than 100 years of proven expertise. We provide precision‑manufactured parts and reliable repair services for a wide range of industries, including construction, forging, forestry, mining, marine, oilfield, petrochemical, refining, tool & die, and more.
Our 220,000‑square‑foot facility allows us to deliver superior‑quality parts to exact customer specifications with fast turnaround times. With a highly skilled workforce and exceptional heavy‑machining capabilities, we can handle components up to 35'-6" in diameter, 125' in length, 200 tons in weight, and 60' under the crane hook — all under one roof.
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8 - Vertical Boring Mills; with our largest capacity being 35' x 6" diameter swing x 20' rail height. Maximum weight capacity 200 ton.
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7 - Horizontal Boring Mills; with our largest capacity being 20' x 40'. Maximum weight capacity 160 ton.
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8 - Lathes; with our largest capacity being 50' center to center maximum, 102" diameter swing. Maximum weight capacity 150 ton.
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9 - Drills; with an 12' arm maximum (radial arm, horizontal, magnetic and portable)
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