Most machine shops in Seattle can handle parts measured in inches. We specialize in parts measured in feet.
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OUR LARGE CAPACITY EQUIPMENT
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Berthiez Vertical Turret Lathe
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Swing: 13 feet diameter
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Turning capacity for massive gears, flanges, pressure vessels, and rotational components
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Perfect for one-offs where sending it out would cost weeks and thousands in shipping
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Giddings & Lewis 4" Horizontal Boring Mill
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Table size: 84 inches (7 feet)
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Can face, drill, and bore large weldments and fabrications
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Retrofitted with digital readouts for precision work on conventional equipment
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Additional Large Equipment:
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30" CNC lathe for medium-large parts
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120" Long Manual Lathe for long shafts
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Large capacity milling machines
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Multiple large overhead cranes to move heavy work safely
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WHAT WE MACHINE
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Industrial Gears & Sprockets: Large diameter gears for material handling, mining, and industrial equipment. We coordinate with local gear cutting shops while handling the turning, facing, and drilling in-house.
Pressure Vessel Components: Flanges, heads, and nozzles for tanks and pressure vessels. We work with stainless, carbon steel, and specialty alloys.
Weldments & Fabrications: Face mounting pads, drill bolt holes, bore bearing surfaces on large fabricated assemblies. We can handle the finish machining after your welding is complete.
Shafts & Rotors: Large diameter shafts, pump shafts, and rotor components that exceed standard lathe capacity.
Repair Parts: When a critical component on industrial equipment fails and you can't source a replacement, we can machine a new one. We've reproduced parts from measurements, damaged originals, or reverse-engineered from equipment specifications.
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MATERIALS WE WORK WITH
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Carbon steel and alloy steels
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Stainless steel (304, 316, 17-4PH, and others)
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Manganese steel for high-wear applications
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Inconel and high-temperature alloys
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Aluminum (including large weldments)
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Plastics and engineered polymers
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Cast iron repairs
WHY SIZE MATTERS
When you have a large part, your options are limited. Many shops don't have the capacity. The shops that do often focus on production runs and don't want one-offs. Shipping a 5,000-pound part across the country is expensive and time-consuming.
We're equipped, we're local to Seattle, and we specialize in exactly this kind of work.
HANDLING & LOGISTICS
Our facility has excellent access from I-5 and the Port of Seattle. We have an off-street loading area designed for flatbed trailers so our forklifts can access from either side.
Our large capacity cranes allow us to safely move heavy work throughout the shop, from receiving to machining to final inspection.
WORKING WITH YOUR TEAM
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Large parts often involve coordination with multiple vendors - welding shops, heat treaters, coating facilities, gear cutters. We regularly manage these relationships for customers, acting as the central coordinator for complex jobs requiring multiple specialty services.
GET A QUOTE
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Send your drawings and specifications to info@washingtonmachineworks.com or call (206) 767-2688 to discuss your large part machining needs.