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Products and Services

  • Turning
  • Milling
  • Multi-tasking
  • Value Added Services
  • Industries Served
  • Parts Manufactured
  • Lean Manufacturing 5-S

Hard-turned parts


up to 35" diameter, 80" length, 5" through spindle

M.R.S. Machining is on the cutting-edge of metalwork and CNC lathe technology. We have made large investments into lathe machines that greatly increase the possibilities for turning raw metal into the exact part you need. Additionally, this advanced technology allows us not only to meet your metalworking specifications, but get your CNC turning jobs done quicker and at a higher level of quality than has ever been possible before.


Turning Center


CNC Lathes for Precision Machining

M.R.S. Machining specializes in creating precision cylindrical pieces with very specific requirements. Our state-of-the-art CNC lathe machines are capable of creating finished parts with multiple section diameters and smooth, finished surfaces.


Mirror-like Finishes

M.R.S. Machining specializes in producing high quality finishes without grinding as much as possible. Mirror finishes are a result of the right equipment, the right tooling, all being run by experienced technicians supported by industry specialists. 


What is Turning?

Turning is the machining operation that produces cylindrical parts. In its most basic form, it can be defined as the machining of an external surface:

  • With the workpiece rotating,
  • With a single-point cutting tool, and
  • With the cutting tool parallel to the axis of the workpiece at a distance that removes the outer surface of the workpiece.

There are several variations of turning in the machining industry, including taper turning and contour turning, that work using these same principles with slight variations to achieve different finished parts. M.R.S. Machining can consult with your business to determine exactly what types of machines and processes will be needed to ultimately create your finished part.



travels to 60" x 27.6" x 25.6"
4-axis horizontal and vertical rotary capability

M.R.S. Machining is on the cutting-edge of metalwork and CNC milling technology. We have made large investments into machines that greatly increase the possibilities for turning raw metal into the exact part you need. Additionally, this advanced technology allows us not only to meet your specifications, but get your jobs done quicker and at a higher level of quality than has ever been possible before.

8Q7A0794-MRS-0948What Is Milling?

Milling is the process of cutting away material by feeding a work piece past a rotating multiple tooth cutter. The cutting action of the many teeth around the milling cutter provides a fast method of machining. The machined surface may be flat,angular, or curved. The surface may also be milled to any combination of shapes. The machine for holding the work piece, rotating the cutter, and feeding it is what’s known as the Milling machine.


Mazak Integrex multitasking turn-millWhat is it, a lathe or a mill? It's a Mazak Integrex, both lathe and mill. The combination allows both turning and milling of parts in a single setup, reducing handling and production time. Additionally, parts are more accurate because all of the operations can be completed in one setup.

Part produced with turn-mill capabilities in one setup 

The part shown to the right was machined from tubing in one setup, including turning, facing, boring, internal threads, engraving, and precision milled holes around the O.D.

Value Added Services

Bag and tagAt M.R.S. Machining, we strive to provide all the service our clients require. We go beyond machining to offer complete service.

  • Assembly
  • Bag and Tag
  • Packaging and crating
  • Vibratory deburring
  • Sandblasting and glass beading
  • Heat treat
  • Stress relief
  • Plating
  • Anodizing
  • Nitrating
  • Kanban - inventory and ship on demand.

Protective packaging and crating protects precision finished surfaces

Industries Served

M.R.S. Machining serves a number of industries, including Oil & Gas, Aerospace, Power Generation, Agriculture, Medical, and Industrial products. Over more than 25 years in business, we have a wide range of experience, so please let us know how we can best serve your needs. 

Parts Manufactured

Gun drillingM.R.S. Machining produces hundreds of thousands of parts each year, in a wide variety of materials. Here we list some examples of the endless possibilities. Shown are part descriptions, machining operations, and the endless specialized materials we work in.

Our goal is to use the best process to minimize cycle time while exceeding specifications, offering you superior products for a great value. 

 The Oil and Gas industry is a specialty at M.R.S. Machining. We have big-bore long-bed lathes equipped with stead rests and sub-spindles to ensure we can handle your most demanding requirements. 

Parts Descriptions

  • Blow out preventers
  • Bullnose
  • Impellers
  • Valve bodies
  • SAE ports
  • Pistons
  • Glands
  • Shafts
  • Axles
  • Bearings
  • Nuts
  • Locknuts
  • Spacers
  • Actuators
  • FRAC Sleeves
  • FRAC Ports
  • Lock Rings
  • J-slot Sleeves


  • Cold rolled steel
  • 4140, including pre-hard
  • 8620 bearing steel, incl. pre-hard
  • Inconel
  • Monel
  • Titanium
  • Stainless Steel, all grades
  • Aluminum
  • Brass
  • Bronze
  • All materials, including pre-hardened up to 65 HRc

Specialized Equipment

  • Collets of all sizes
  • Sub-spindles
  • Mandrels
  • Steady rests
  • Big-bore long-bed lathes
  • Multi-tasking turn-mill machines (Integrex)


Specialty Threads

  • Acme Threads
  • AMT Threads
  • AMMT Threads
  • Box Threads
  • Buttress Threads
  • EUE Threads
  • MT Threads
  • NUE Threads
  • PAC Threads
  • Pin Threads
  • Rounded Threads
  • Stub Acme Threads
  • Wicker Threads

Processes and Shapes

  • Milling
  • Turning
  • Drilling
  • Deep hole drilling
  • Gun drilling
  • Broaching
  • Knurling
  • Threading
  • Thread milling
  • Thread rolling
  • Tapping
  • Thread forming
  • Stress relieving
  • Heat treating
  • Finishing and deburring
  • Packaging and labeling
  • Plating and anodizing*
  • Gears*
  • Splines*
  • Grinding*


Thinking Lean

One of the keys to our quality at M.R.S. Machining is our strategic organization. Adhering to lean manufacturing 5-S principals (learn more here), MRS uses two key strategies for efficiency and quality. The result is higher productivity and better quality.

Work Cells

IMG 2400-MRS-0103With over 25 pieces of late-model, precision machinery, M.R.S Machining has the capability and capacity for high productivity in low to medium volume precision turned and machined parts. Maximizing that productivity helps keep your costs down while offering superior service and quality.

Our machinery is grouped in cells to maximize productivity and make the most of of our highly skilled operators. Cells generally consist of two or three machines with complementary capabilities.

IMG 2303-MRS-0006This row of machines is actually two cells specializing in big-bore lathes and long center distance turning. The lathe on the left is performing a deep hole "gun drilling" operation in addition to turning the long outer diameter. When those operations are completed, the operator conveniently switches the part to the machine across the aisle, eliminating steps and keeping consecutive operations in sequence.

8Q7A0277-MRS-0452IMG 2339-MRS-0042 

In-Process Inspection

8Q7A0282-MRS-0458Inspection of parts during machining operations and between multiple setups helps reduce scrap and assure you of better parts. Visit our shop and you'll see neatly organized workspaces with all the tools needed for the current operation, without the clutter of unneeded tools.

Working this way in conjunction with our cell floorplan, critical inspections are performed after operations, but before the next process. This real-time inspection assures you of quality parts delivered on time, every time.


Industries Served

Here are a few examples of market segments serviced by MRS Machining:

  • Agriculture
  • Food processing
  • Dairy
  • Automotive
  • Trucks
  • Off-road equipment
  • Rail
  • Recreation
  • Medical
  • Oil & Gas
  • Energy
  • Water
  • Hydraulics
  • Valves

Machine Capabilities

  • Multitasking - 5-axis Turn/Mill
    • Diameter to 30"
    • Length to 40"
  • Turning - 2 to 4 axis
    • Diameter to 35"
    • Length to 80"
    • Large steady rests
    • Live tooling
  • Vertical Machining Centers
    • 3 and 4 axis
    • 60" x 27" x/y travels
  • Horizontal Machining Center
    • 30" cube travels
    • 500 mm pallet - 1° index

Done In One

Planning for success - That's how we ensure you of receiving the best value possible.

To that end, we carefully plan the process for every part we manufacture based on the design, quantity, material, and our specialized capabilities. We strive to minimize setups to reduce handling. In this way, we can improve delivery, reduce your cost, and provide you with a more accurate part.

M.R.S. Machining is...

M.R.S. Machining provides precision machining services to the oil & gas, aerospace, energy, medical, food service, and industrial products industries throughout the U.S.A. Equipped with the very latest in turning, milling, and multi-tasking machining technology, we provide a wide range of services including value-adds like assembly, tag and bag, and surface finishing. A women-owned small business since 1986, we have built our business on relationships and family values.

Let us introduce you to the value of precision.

Our Mission

Our mission is to produce the highest quality parts utilizing the finest equipment.

We are dedicated and will strive to satisfy every customer through enthusiastic effort, friendly service and teamwork. The employees are the source of our strength and the key to the successful fulfillment of our mission.

Multitasking Turn/Mill

Some of our most efficient machines combine milling and turning capabilities with additional controlled axes. This impressive capability allows us to perform most or all of the required operations in one setup. The result is more accurate parts in less time.

Continuous Improvement

M.R.S. Machining is committed to continuous improvement in our equipment, people, and facilities. Our equipment list, for example, is listed in order of acquisition. We work with local high schools and CVTC, Chippewa Valley Technical College to improve their skilled trades programs. Ongoing education is another aspect of our in-house training to nurture our workers' skills.