Welcome to Superior Joining Technologies, Inc.
We are a state of the art welding laboratory featuring laser welding and TIG!
We Offer:
  • CO2 5000 Watt Laser Welding and Cutting
  • NDT Fluorescent Dye Penetrant
  • Magnetic Particle Inspection
  • Microscopic Laser Welding
  • TIG Seam Welding
  • 3D Metal Printing
  • CMM Inspection
  • Roll Forming
  • Prototyping
Quality Work at Lightening Speed!
We are ISO9001 and AS9100 Certified with our own internal quality and inspection team!

Our Capabilities:

  • Certified Laser Welding
  • Certified TIG Welding
  • Micro-Welding TIG
  • Micro-Welding Laser
  • Resistance: Spot and Seam Welding
  • Prototyping
  • Tool & Die, and Mold Repair
  • Low Volume Production
  • High Volume Production
  • Silver Brazing
  • Roll Forming
  • TIG Seam Welding

Special Processes:

  • CMM Inspection
  • NDT Fluorescent Dye Penetrant
  • Magnetic Particle Inspection

About SJTI

Superior Joining Technologies, Inc. has a strong reputation as an innovative manufacturing source of the Greater Rockford Area. Conveniently located, we are easily accessible to our customers for the best possible service. We will also express-ship repairs for a one-day turn around. We work to provide quick quotes, while-you-wait repairs, and on-time deliveries! We use a network of subcontractors to provide a variety of fabricating, machining, and support services. We do the job right the FIRST time!

Certifications and Registrations

Commercial and Government Entity (CAGE) Code:


North American Industry Classification System (NAICS) Codes:

  • 331 Primary Metal Manufacturing
  • 332312 Fabricated Structural Metal Manufacturing
  • 332322 Sheet Metal Work Manufacturing
  • 33271 Machine Shops
  • 332999 Fabricated Metal Products Manufacturing
  • 333319 Other Commercial and Service Industry Manufacturing
  • 333512 Machine Tool Manufacturing
  • 334417 Electronic Connector Manufacturing
  • 335121 Residential Electric Lighting Fixture Manufacturing
  • 335122 Commercial, Industrial, and Institutional Electric Lighting Fixture Manufacturing
  • 335129 Other Lighting Equipment Manufacturing
  • 336411 Aerospace
  • 336412 Aircraft Engine and Engine Parts Manufacturing
  • 336413 Other Aircraft and Auxiliary Equipment Manufacturing
  • 33911 Medical Equipment
  • 339114 Dental Equipment and Supplies Manufacturing
  • 339999 MISC Manufacturing
  • 541380 Testing Laboratories
  • 541710 Research and Development in the Physical, Engineering, and Life Sciences
  • 811310 Repair of Machinery and Equipment
  • 811310 Commercial and Industrial and Equipment Repair and Maintenance

Standard Industrial Classification (SIC) Codes:

  • 3724 Aircraft Engines and Engine Parts
  • 3999 Manufacturing Industries
  • 8734 Services-Testing Laboratories NDT

SJTI Welders Certification in Accordance With…

Certified Test per:

  • AWS D17.1:2001, Sect 4 Fusion Welding for Aerospace Applications
  • AWS C7.4/C7.4M:2008 Process Specification and Operator Qualification for Laser Beam Welding

Coupons Per:

  • ANSI / AWS D1.1, Sect 5, Part B Structural Welding Steel
  • ANSI / AWS D9.1-90 Sheet Metal Welding
  • AWS D10.9, Sect 2 Qualifications of Welding Procedures and Welders for Piping and Tubing

Aerospace Spec Per:

  • MIL-STD-2219A Fusion Welding for Aerospace Applications

Material Spec Per:

  • ASTM B210-95 Aluminium and Aluminium-Alloy Drawn Seamless Tubes

Filler Material Per:

  • AWS A5.9 Bare Stainless Steel Welding Electrodes and Rods
  • ASME SFA5.9 MIG Welding of 18%Cr-8%Ni Stainless Steel (chemical industry, oil, medical, fertilizer, textiles, and nuclear reactors)

Base Metal Per:

  • MIL T 8808B Seamless or Welded and Drawn Corrosion-Resistant Steel Tubing in the Annealed Condition


AS9100:2009 Rev C, and ISO 9001:2008 without Design
Registrar: Smithers Quality Assessments (SQA)
Certificate #: 10.057.1 / 10.057.2
Date of Registration: January 2, 2013
Date of Expiration: January 1, 2016
Superior Joining Technologies NADCAP accreditation is provided through Performance Review Institute. PRI CS&S is the third dimension in Customer Service & Support. PRI works with industry, government and individual organizations to identify and meet customer demand in all areas of business relating to quality.
Rock River Valley manufacturing experts discuss the many facets of manufacturing: technology, education, training, events, people and any other aspects of this important segment of our economy. They’ll use this blog to get the word out and solicit feedback on local and global manufacturing. They hope to better engage our employers, employees and our future work force and increase their understanding of manufacturing. Teresa Beach-Shelow of Superior Joining Technologies is a regular contributor to this regional manufacturing blog.
MFG DAY addresses common misperceptions about manufacturing by giving manufacturers an opportunity to open their doors and show, in a coordinated effort, what manufacturing is — and what it isn’t. By working together during and after MFG DAY, manufacturers will begin to address the skilled labor shortage they face, connect with future generations, take charge of the public image of manufacturing, and ensure the ongoing prosperity of the whole industry. Superior Joining Technologies is proud to participate in the MFG DAY effort.
We are proud members of Women of Today's Manufacturing (WOTM), a Northern Illinois / Southern Wisconsin area group of women dedicated to working in the manufacturing field, joined together to provide professional and personal development, networking opportunities and community interactions through a professional association.
Digital Manufacturing and Design Innovation Institute. We are the Digital Lab for Manufacturing — a world-class, first-of-its-kind manufacturing hub based in Chicago with the capabilities, innovative spirit, and collaborative expertise to transform American manufacturing.
We are also proud members of the Rockford Chamber of Commerce, "a market-driven, voluntary membership organization whose purpose is to advance the business and community interests of our members and improve the business climate generally through facilitating, advocating, and providing information and leadership in business, governmental and civic matters that benefit Rockford and the Northern Illinois region."
The Rockford Area Economic Development Council works closely with many partners to learn what existing and new employers need to grow - and match those needs with the correct resources. We provide one-stop economic development assistance, help clients conduct site analysis based on their unique requirements, lead them to the right incentive programs, create and conduct business educational programs such as Continuous Improvement/Lean Manufacturing and identify and help develop future markets.
The County of Winnebago, Illinois Website is a tool for you to find information on our County including government, economic growth,  local communities, housing, entertainment, restaurants, and hotels.  Winnebago County's central location at the top of the State of Illinois allows easy access to us from larger cities such as Chicago IL, Milwaukee WI, and Madison WI. 
The mission of the Rockford Public Schools, as an educational system committed to excellence, is to serve the community by equipping all of its diverse students with the tools necessary to compete in a global marketplace, succeed in future educational pursuits, and contribute to society. This is accomplished by creating integrated learning environments that respond to the needs and aspirations of the individual student in partnership with family and community.
Rockford Robotics Team 2039 is a FIRST robotics team for high school students of the Rockford, IL community. They represent a uniquely diverse collaboration. The team is open to any students in Rockford and the surrounding areas, and is comprised of students from public, private, and home schools. This gives them the advantage of wider student diversity as well as distinctive organizational challenges. Superior Joining Technologies is proud to support the Rockford Robotics Team 2039.
The Flaming Monkey Robotics Team (Team 3352) first started out as the Boone County 4-H Tech Team two years ago. The team built, programmed Lego NXT Robots and attended two week-long camps. In an effort to provide new and exciting opportunities to the team and local high school youth, our team chose to become a FIRST Robotics Team. Superior Joining Technologies is proud to support the Flaming Monkeys Robotics Team 3352.
The Fabricators & Manufacturers Association, International (FMA) is a professional organization with more than 2,000 individual and company members working together to improve the metal forming and fabricating industry. Founded in 1970, FMA brings metal fabricators and manufacturers together through technology councils, educational programs, networking events, and FABTECH International & AWS Welding Show Including METALFORM.
Recognizing manufacturers as value-added producers of goods and services, and creators of high quality jobs for Chicago area citizens, the Tooling & Manufacturing Association supports industry by providing educational opportunities, industry representation, services to foster member company global competitiveness, helping member companies train and educate personnel at all levels, provide direct and indirect sources of information and assistance, pool the purchasing power of member companies, represent and promote the interests of member companies, serve as a forum and a clearinghouse for the exchange of ideas and information, and foster a sense of mutual support and unity among the members and the industry as a whole.

The Edge Factor is a new 3D stereoscopic series that bring to screen an inside look at real people using extreme technology to create the world we see all around us. Come face to face with astounding engineering challenges in an incredibly exciting world that is normally invisible to the general public. Join Jeremy as he leads us into the invisible world of manufacturing, and meet the personalities that make these stories possible - diverse people with skills that rival that of a doctor or surgeon. From extreme sports and medical miracles to incredible engineering achievements that effect our daily lives. Step inside their minds, dive into their world, learn how these people make their dreams come to life with their own hands.


ToolingU.com is the leading online training provider focused on the unique needs of manufacturers. Our roots are in manufacturing, and our business started by recognizing the industry's specific needs. While some may report that "manufacturing is dead," or that "all the jobs are overseas," we recognize instead that manufacturing faces a challenge. Today's manufacturers are ready to compete, but to do so successfully, they need the right people, and they need the right knowledge. We believe that training is the key for future success. Manufacturers are the keepers of vital knowledge and technologies, but this knowledge will be lost through transition and a retiring workforce unless the knowledge is passed on. We have developed an extensive catalog of manufacturing-specific content and innovative learning tools to help manufacturers bolster their expertise and leverage their people to successfully compete in today's economy.

The Leading Aviation and Airline Job Site - Avjobs lists more than 1,000 new jobs each month, builds professional resumes to aviation standards, provides interview assistance, coaches applicants through the job search process, and even issues private professional email addresses for professional presentation and privacy.
Find and download a printable job application form for the job you need.
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MacRae's Blue Book Industrial Directory

MacRAE’S BLUE BOOK is one of the world’s key sourcing tools for North American industrial products and performs almost 5 million industrial searches monthly for nearly 2 million unique users.
The Canadian Trade Index (CTI) came into existence in the year 1900, to promote the interest of Canadian industry, commerce and foreign trade. Today, the Canadian Trade Index is distributed and used extensively throughout Canada and worldwide, and now contains detailed information on over 30,000 Canadian companies, featuring nearly 100,000 product listings under more than 20,000 headings.
SEA is an unprecedented aerospace and defense alliance led by sub-tier suppliers committed to accelerating supply chain performance. SEA provides a proven turnkey system for supplier development targeted to mid-tier aerospace and defense customers and provides an industry voice for suppliers on issues affecting supply chain performance. SEA also provides a platform for supplier visibility, performance improvement and collaborations.

Northern Illinois University Supermileage Team

What is Supermileage®?
The Supermileage® competition provides engineering and technology students with a challenging design project that involves the development and construction of a single-person, fuel-efficient vehicle. Vehicles are powered by a small four-cycle engine. The vehicles will run a specified course with the vehicle obtaining the highest combined kilometers per liter (miles per gallon) rating plus design segment points winning the event. Students have the opportunity to set a world fuel economy record and increase public awareness of fuel economy. Engines are donated by Briggs & Stratton.

Women in Manufacturing began in November 2009 with a small group of Precision Metalforming Association (PMA) members who gathered at the FABTECH tradeshow in Chicago to discuss best practices, business conditions and unique challenges and needs as minorities in the field. This intimate group subsequently met in 2010 and 2011 before broadening its scope to network with women in all areas and industries within manufacturing, offering year-round networking opportunities, mentoring programs, quarterly e-newsletters and an online directory.
The Defense Alliance aims to enhance the already-successful network of people and firms created by the Minnesota Defense Industry Roundtable (and the associated on-line Newsletter) begun in 2003. The ultimate goal is to network and expand the defense industry job base and further promote this region's important contributions to the Nation's defense.
The Rock River Valley Tooling and Machining Association (local chapter of the National Tooling and Machining Association) is a group of Tool and Die Shops, Contract Machine Shops, and Precision Custom Manufacturers in the Northern Illinois and Southern Wisconsin area, whose mission is to lead our precision manufacturing members in achieving maximum business success by providing a center of knowledge, promoting and emphasizing education, technology, marketing, networking, finance, and government affairs.
The Laser Institute of America (LIA) is the international society for laser applications and safety. Our mission is to foster lasers, laser applications, and laser safety worldwide.
The National Association of Manufacturers (NAM) is the preeminent US manufacturers association as well as the nation's largest industrial trade association, representing small and large manufacturers in every industrial sector and in all 50 states. Manufacturing employs nearly 12 million workers, contributes more than $1.6 trillion to the U.S. economy annually, is the largest driver of economic growth in the nation and accounts for the lion's share of private sector research and development.
The American Welding Society (AWS) was founded in 1919 as a multifaceted, nonprofit organization with a goal to advance the science, technology and application of welding and related joining disciplines.AWS New World Headquarters render 2012 From factory floor to high-rise construction, from military weaponry to home products, AWS continues to lead the way in supporting welding education and technology development to ensure a strong, competitive and exciting way of life for all Americans.


Fabricators and Manufacturer Association Event

FMA at Superior Tube

Fabricators and Manufacturers Association FMA...at Superior Tube in Iowa ...great family owned business. ..go manufacturing!

(June 2015)

Clean Laser Cuts on half inch (0.5") A36 Mild Steel

Clean Laser Cut A36 Steel

With only 600 Watts of power, Superior Joining can cut clean through 1/2 inch ( 13mm ) A36 structural steel! Superior Joining has the capability to cut holes with a laser to 1 inch ( 25.4mm ) thick with up to 5000 Watts of power!

(May 2015)

Superior Joining in the Tube & Pipe Journal

See how Superior Joining was able to sidestep the GTAW and micro-GTAW processes with microscopic laser welding! GTAW is notorious for side arcs which would damage features of a part and microscopic laser welding was the key to produce a precise virtually perfect weld. Just another cutting edge process found at Superior Joining!

(April 2015)

Superior Joining makes the frame for the Shell ECO Challenge Car!

Shell Jay Leno Commercial 2015 Jay's Garage. Shell TV Spot, 'Jay's Garage' Featuring Jay Leno. Jay Leno shows the Shell Eco-marathon car team around his museum-like garage. All of the cars get a laughable miles per gallon in comparison to their Eco-marathon car, which gets 1,359 miles per gallon.

(April 2015)

Superior Joining - YWCA's 35 Years of Women Achievement

Watch this historic event as the YWCA celebrates 35 years of Women achievement. Speakers at the event were Kris Kieper (CEO of YWCA), Mary-Stuart Carruthers, LoRayne Logan (Owner Workplace Staffing), Caitlin Ludwig (Blackhawk Bank | 2004 Bright Future Scholar), and our very own Teresa Beach-Shelow!

(March 2015)

Superior Joining Technologies presents The Edge Factor Show!

(February 2015)

Contact Us


E-mail for Outlook


Teresa Beach-Shelow - (815) 282-7581
Sales, Marketing, IT, and Quality Manager

Thom Shelow - (815) 316-6335
Vice President/Owner
Office and production scheduling; answers technical questions regarding processes and pricing

Tom McNamara - (815) 316-6338
Contract Manufacturing Manager
Manages large, ongoing projects

Doug Kanne - (815) 316-6340
Quoting & Sales Specialist
Customer quoting and sales

Dawn McDonald - (815) 316-6337
Accounting & Administrative Coordinator
A/P, A/R, and HR

Diane Simpson - (815) 316-6332
Administrative Purchasing Administrator
Main receptionist; purchasing

Lynn Johnson - (815) 316-6333
Shipping & Receiving Associate
Shipping and receiving


SJTI Sitemap

Superior Joining Technologies is a Woman-Owned Business.
FAA Drug & Alcohol Free Workplace Certified.
FAA Repair Station OP Spec (3SJR972Y) Certified for Welding,
Fluorescent Penetrant and Magnetic Particle Inspection.
NADCAP Accredited for Fluorescent Penetrant and Magnetic Particle Inspection.
Hamilton Sundstrand Approved to AWS - Fusion Welding for Aerospace Applications.
Access to Foreign Trade Zone.