cnc milling

Our Capabilities

• Precision CNC Machining

• Custom Fabrication

• Assembly & Testing

• Turn-Key Inventory Management

• 23 Modern CNC Machine Tools

• ISO 9001:2015 Certified

• Advanced CAD/CAM System

• Nearly 60 Years of Experience

Learn More about PR Machine Works

PR Machine Works is ISO 9001:2015 Certified

cnc milling

About PR Machine Works

In 1964, while working at General Motors, Gene “Pat” Romanchuk started PR Machine Works in his garage in Mansfield, Ohio. His skills as a tool and die maker provided the knowledge, while his entrepreneurial instincts supplied the drive for the fledgling company. In 1973, PR Machine Works moved out of the garage and into its own building in Mansfield. Innovation, quality and customer satisfaction were among the guiding principles in these early years.

"Let Team PR show you the future of precision contract manufacturing."

pr machine works building

The PR Machine Works Facility

Mark Romanchuk joined PR Machine Works in 1993, bringing with him an MBA and nine years of experience in engineering and business management. At this time the company shifted from military to commercial work and began a decade of expansion and growth that has placed PR Machine Works on the list of “Fastest Growing Ohio Companies” several times in recent years. Mark and his team of professionals and craftsmen are proud of their accomplishments. But, this is only the beginning…

Today, PR Machine Works is a full-service precision manufacturing and fabrication facility with 86,000-square-feet of floor space, 5-ton and 10-ton overhead cranes, state-of-the-art equipment, and room for future expansion. “Our competitive drive has led us to pioneer new manufacturing processes and tooling applications in our ongoing effort to increase value for our customers,” says Mark Romanchuk, CEO. “PR Machine Works is ‘breaking the mold’ for contract manufacturing by providing a world-class standard of excellence right here in north central Ohio.” This company-wide maxim is backed up on the shop floor where you will find leading-edge technology: high-tech 7-axis, multi-spindle turning, fully-automated manufacturing cells, advanced assembly and testing, and a huge array of modern CNC machine tools capable of running one-piece prototypes to high-volume production.

PR Machine Works has recently added 46,000 square feet of manufacturing space for our fabrication, welding, assembly and inventory operations. We are committed to managed growth in order to meet the growing demand for our products and services; and to continue to provide the best possible value, quality and service for our customers.

With more than 57 years of knowledge and experience behind us, PR Machine Works offers you the latest in manufacturing technology combined with a team of professionals and craftsmen committed to delivering total quality, unbeatable customer service, and outstanding value every time.

We invite you to tour our world-class, ISO 9001:2015-certified facility in Mansfield, Ohio, and experience the PR difference for yourself. Contact us today, and let Team PR show you the future of precision contract manufacturing.

Custom Manufacturing Excellence since 1964

hydraulic hand pump
hydraulic hand pump
hydraulic hand pump
Assembly & Testing

Hydraulic Hand Pumps assembled by Team PR can be either the primary or backup power system for actuators requiring hydraulic operations. These balanced ram design manual hydraulic pumps are assembled in two sizes providing 4 and 12 cubic inch displacement of fluid.

The pump incorporates the latest safety features available for use in air over oil hydraulic systems. Self-neutralization and anti-cavitation features are just a few of the engineered improvements offered in these designs. Every pump undergoes hydrostatic and functional testing prior to delivery. There are 75 components in each Hydraulic Hand Pump Assembly.

The robust Control Valve assembled by Team PR is the heart of control panels manufactured for use in thousands of natural gas and oil production and transportation applications and mining operations throughout the world.

Versatile by design, this double three way control valve, with integrated filtration, directs pneumatic or hydraulic pressure for precise manual or remote control of valve actuators. Each unit undergoes hydrostatic and functional testing in preparation for delivery on demand. The Control Valve Assembly contains 36 component pieces.

testing console
Custom Designed Flow Bench for Hydraulic & Pneumatic Testing
As a part of our ongoing drive to improve and augment the value stream in our assembly and testing department, PR Machine Works has installed a custom-designed flow bench for hydraulic and pneumatic testing. Our new flow bench offers fast and reliable hydrostatic testing up to 2,500 psi, performance and leak testing to 2,500 psi for hydraulic and 600 psi for pneumatic, and precise rate-of-flow measurements for a variety of applications.

We Offer Advanced Precision Manufacturing Technology

cnc milling

What's New at PR Machine Works

cnc machine tool

Two New Horizontal Machining Centers


December 2020


PR Machine Works has purchased two new Horizontal Machining Centers.  Our new Doosan NHP-4000 and Doosan NHP-8000 HMC's significantly increase the throughput volume in our CNC Milling Department, while increasing our milling size capacity to 55" x 47" x 54" xyz.  These two new workhorse machines can handle the toughest materials while holding dimensional tolerances as close as ±.0002" and GD&T or true position of .003".

With 25 modern CNC machines, PR Machine Works can handle your most demanding requirements with superior quality and reliable, on-time deliveries.  We are committed to providing our customers with the latest in precision machining technology, managed by some of the most talented manufacturing professionals in the business.  Contact us today and learn more about the cutting-edge precision manufacturing environment at PR Machine Works.

PR Machine Works is ISO 9001:2015 Certified

metals bars

Materials

PR Machine Works Can Machine These Materials

Aluminum Alloys

2011 • 2017 • 2024 • 2219 • 5052 • 6061 • 6063 • 6262 • 7050 • 7075 • K100 & More

Carbon Steel

1018 • 1025 • 1040 • 1045 • 1112 • 1117 • 1141 • 1144 • 1215 • 12L14 Ledloy & More

Tubing & Pipe

Steel, Alloy, Stainless & Aluminum Mechanical Tubing • Seamless, DOM & Welded Tubing

Aircraft Alloys

4130 • 4140 • 4140/4150 Pre Heat Treated • 4330 • 4340 • 4620 • 52100 • 8620 • 8740 • 9310 • 300M • H-11 • Hy-Tuff • Nitriding & More

Stainless Steel

13-8MO • 15-5PH • 17-4PH • 300/400 Series • 2205 Duplex • Nitronic 40/50/60 • AM-355 & More

Super Alloys

A-286 • AM350/355 • Haynes • Hy Mu • Incoloy • Inconel 625 & 718 • K-Monel • Nitroloy • Hastelloy • Maraging • Monel • Nickel • Waspaloy & More

Titanium

6Al-4V • 6Al-6V-2Sn • 6Al-7Nb • 8Al-1Mo-1V • 10Al-2V-3Sn • CP 1, 2, 3 & 4 • Ti-1100 & More

Brass & Bronze

200/300 Series Brass • 400/500 Series Bronze • C630 • C624 • C642 • Ampco • Silicon & Manganese Bronze • Naval-Bronze C464C954 Aluminum Bronze & More

Tool Steels

A-2 • D-2 • H13 • DC-53 • O-1 • S-7 • T-15 • M-2 & More

Plastics

Acrylic • Delrin® • Lexan® • Polycarbonate • Polyethylene/UHMW • PEEK® • Nylon • Teflon® • Vespel® • Ultem® & More

Fabrication

Steel, Aluminum & Stainless Plate • Structural Shapes • Sheet & More

Welding

A-36 Plate • 1018 • 4140 • Aluminum • Stainless Steel • Cast Iron & More

Castings

Ductile & Gray Iron • A356 Aluminum • C922/C844 Brass & More

Forgings

1035/1045/1141 Microalloy Steel • Aluminum • 377 Brass • 642 Aluminum Bronze & More