Industrial Precision Machining

Precision machining of industrial equipment for heavy industries.

Precision Machining for Heavy Industry

Western Machine Works has provided precision machining services for heavy industry, including automotive, steam & gas, mining & aggregates, steel production, pulp & paper, ship building, construction, and other critical industries. With our large engine lathes, CNC lathe, vertical boring machines, horizontal boring machine, precision grinding machines, dynamic balancer, and thermal spraying, each project is assigned an engineer to ensure precision and accuracy. Our precision machining can meet the most demanding tolerances, specifications, and certifications for both federal and commercial customers.

Our Equipment and Capabilities

From our 34,000 square foot facility in Portland, Oregon, we serve the Pacific Northwest, including Washington State and Idaho, with our heavy lifting and transport capabilities. Here are some of the machines we use in mission-critical applications for our industrial and commercial clients.

Precision Machining Capabilities & Equipment


Engine Lathes

Our engine lathes are used for cutting, shaping, and precision machining of metallic materials, rotating the workpiece around an axis. Our lathes are capable of handling large equipment components and workpieces such as turbine runner shafts, propulsion shafts for marine vessels, wind turbine shafts, process rolls, large industrial drums, screws, augers, and cylinders.

  • Max. swing diameter: 78 ¾”
  • Max. between centers: 482”
  • Max. over cross slide: 66 ½”

CNC Lathe Machining

Our state-of-the-art CNC lathe allows us to create or restore industrial components and part to OEM specifications or better. These custom parts include:

  • Shafts
  • Process rolls
  • Bearing housings
  • Bushings and flanges
  • Custom tooling

Our CNC Lathe specifications:

  • 13 ¼” Swing Over Carriage x 78”

Vertical Boring

Vertical boring machines are used for turning and boring large and heavy industrial workpieces, such as water turbine runners, propulsion hubs, marine pipe sockets, thrust bearings, and trunnions. The workpiece is held on a horizontal table that rotates along a vertical axis, while the boring head moves linearly.

  • Max. swing diameter: 103”
  • Max. vertical under rail: 85”

Horizontal Boring

Our horizontal boring machine can modify industrial parts and components by drilling, boring, milling, and grooving various types of steel and alloys in a horizontal direction. This allows for large parts to be machined quickly with great precision and accuracy, while our machinists can reach small cavities easily.

  • 103” cross table travel
  • 60” x 120” table
  • 72” vertical travel

Precision Grinding Machines

Precision grinding and precision roll grinding in used in various industrial applications like hydropower, wind power, pulp & paper, heavy equipment, and marine. Western Machine Works can grind up to 4 Ra finish or regroove to precise dimensions to meet critical applications of rolls, screws, presses, augers, and other large rotating components.

Our Precision Grinding Machine

  • 48” OD x 290: Face
  • 4 Belt Grinder
  • Computer-controlled Crowns
  • 8” Superfinisher
  • Pro-Mic System

Dynamic & Static Balancing Machine

Roll balancing helps minimize vibrations and preserve bearings in moving parts of machinery, especially rotating shafts. Industrial equipment must be balanced using counterweights and precise measurements. Dynamic and static balancing helps extend the life of equipment, increases equipment performance, and prevents expensive repairs later.

  • 96” Swing x 552” Length
  • 3-Plane Capacity
  • 50 HP Drive
Reverse engineering

Reverse Engineering

We can reverse engineer required components, even without an existing CAD file. We can design new equipment or upgrade existing components and machinery to strict tolerances and required standards. We also provide mechanical engineering services such as failure analysis, component redesign, industrial equipment upgrades, and project management services.


Shaft Manufacturing

We provide comprehensive shaft manufacturing that meets or exceeds OEM standards, meets tight tolerances, with a fast turnaround time. No matter the complexity of the requirements, our experienced engineering and manufacturing team can produce shafts for the largest industrial applications.

Thermal Spray coating

Thermal Spray / Metallizing

Using a twin-wire arc thermal spray process, our technicians can restore your equipment to OEM specs or better. Stainless steel, tungsten carbide, and traction coatings available. We restore and recondition eligible equipment for a fraction of the price of replacement. Our thermal spray coating process meets ASTM standards, including ASTM 633-01(2008) and ASTM G98.

Heavy Industries We Serve

For over 35 years, our precision machining capabilities have reliably helped clients in these industries:

  • Heavy Equipment Manufacturing
  • Automotive Manufacturing
  • Pulp & Paper
  • Power Generation
  • Gas, Steam & Refinery
  • Marine Vessel, Naval, and Commercial Ship Repair
  • Hydraulic Component Manufacturing
  • Construction
  • Mining & Aggregates
  • Building Materials Manufacturing
  • Non-Woven Manufacturing

Precision Machining Materials

Here are some of the materials we work with for industrial precision machining.

  • Stainless Steel
  • Bronze
  • Copper
  • Brass
  • Carbon steel
  • Composites
  • Plastics
  • Steel
  • Titanium
  • Exotic Alloys

Tight Tolerances

Our industrial precision machining meets dimensional requirements up to .0005” accuracy, including extremely tight tolerances, finishes, outer diameter (OD), total indicator reading, and inside diameter (ID). An engineer is assigned to every project for quality assurance, and to ensure reliable results from start to finish.

Precision & accuracy are priorities in our machining . Western Machine Works can achieve both through our skilled machinists, engineers, accurate tooling, and advanced technology.


Can you help us if we are not located in Portland or Oregon?

Yes, we provide transportation services to pick up and deliver the parts within the Pacific Northwest (Oregon, Washington, Idaho, Colorado) and the surrounding regions. We do not only transport, but also ensure proper handling of the components and assemblies to maintain safety, quality, and prevent damage.

Can you help with precision machining for a complex part that has very demanding specifications?

We specialize in machining with precision and accuracy to meet demanding tolerances, dimensions, TIRs, and critical fits. Our team combines the skills and expertise of our technicians, machinists, engineering team with advanced equipment and custom fixturing / tooling to meet customer’s requirements, including critical timelines.

I don’t have the OEM manufacturing print or CAD drawing, but need an industrial component produced. Can you do this?

Yes, we specialize in reverse engineering for the repair, refurbishing, and custom manufacturing of complex industrial parts, including shafts, sleeves/liners, process rolls, sealing assemblies, bearing housing, trunnions, bushings, flanges, plates, and other parts. If you don’t see the component you need on our site, contact our team for consultation.

State of the Art Facilities

Our expansive 34,000 square foot facility is in Portland, Oregon, close to the Willamette River and Vancouver, WA. With our heavy lifting capabilities, reverse engineering capabilities, and experienced team, we can handle any industrial machining job you have.

Precision Machining Projects

Precision Machining for Dewatering Press Screw

Precision Machining of Hydraulic Cylinder

Equipment Modification of Feed Cylinder

Why Us?

Since 1985, Western Machine Works has supplied precision machining to critical heavy industries in Oregon and the Pacific Northwest. We can transport your large components to our facility, work on the component there, and deliver the component back to your work site.

Our engineering team can manufacture large complex components with our without the original manufacturing prints or CAD drawings. With our engineering-focused equipment repair, refurbishing, and manufacturing, our team can meet the most demanding technical requirements and critical timelines. Our goal is to provide customers the most viable solution for their project, while presenting different options for comparison.

Lastly, we provide 24-hour rapid response. If your situation is mission critical, and cannot wait a minute, our team can organize a response to get your work facility back in action as quickly as possible. Our proven track record speaks for itself.

Precision Machining of Custom Parts for Refurbishing & Repair

  • Motor Shafts
  • Bearing Housings
  • Process Rolls
  • Testing Shafts and Sleeves
  • Propulsion hub, components, and shafts
  • Boiler Fan Shafts
  • Thrust Bearings
  • Rock Crushers
  • Process Rolls
  • Drums and Cylinders
  • Screw Presses
  • Shredders and Shafts
  • Hydraulic Barrels
  • Pipe Sockets
  • Bushings and Flanges
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