The Inspiration
It came from long, tedious hours of handling mail…from the endless stacks of envelopes and flyers to be bundled. Who wouldn’t develop a notion that “there had to be a better way.”
This was way back in 1906. The year a hard-working postal clerk named Romanzo Norton Bunn said to his inquisitive son, “why not a mechanical tying machine?”
The Prototype
Benjamin Bunn was an inventive sort. A teenager who liked to experiment until something came out right. And it did! By 1907 Benjamin H. Bunn had invented a prototype of the world’s original “Automatic Package Tying Machine” – the number One Bunn. This concept actually ushered in the era of automatic packaging.
During his first year at the University of Illinois, Benjamin worked on the prototype in the attic of the family home at 10549 Church Street. Benjamin Left school after a year to continue working on his machine’s features and improvements. By 1910 his prize prototype was fully perfected.
Postal Service Breaks the Ice
Ben Bunn then went on the road to demonstrate the new machine in Post Offices at New York, Washington, and Ottawa, Canada. Interestingly, the first Bunn Tying Machine was purchased by the Canadian Post Office.
In 1913, the United States Post Office purchased 50 of the new machines, as well as a number of commercial business sales. The Automatic Tying Machine was on its way.
Building a Company
About the year 1916, Harry Edward Bunn, Ben’s younger brother, came on the scene as a salesman. About that time, too, Romanzo N. Bunn retired from the Chicago Post Office and took charge of the correspondence and bookkeeping.
In 1923, with a lot of foresight, optimism and confidence in the future, Benjamin H. Bunn purchased a building at 7339 Vincennes Avenue on Chicago’s south side and established a complete machine shop and assembly area to handle the mounting orders for the Bunn Tying Machines. Commercial industry had beat a path to Bunn requiring all shapes and sizes of machines for general applications.
By 1930, the Bunn facility had grown and a new, larger building was built on the Vincennes Avenue site, and 12 years later an addition was made to the facility. The company’s product demand and financial strength continued to grow, and the same thing happened in 1952 and 1957…more additions.
The Second Generation
In 1946, Benjamin’s son Richard B. Bunn entered the business with an energetic sales approach. From that point, an experienced organization of manufacturing representatives, totaling 25, was pulled together and strengthened nationwide, along with several sales worldwide.
During the 40’s and the 50’s, as the Bunn sales organization grew, so did the Bunn Company. Through this organization, the total product line expanded to meet the customized application requirements of numerous businesses. The Bunn response to the most unique application is, “We can do it.” Today, this same motto still rings true…”We can do it.”
In 1950, a representative of the U.S. Postal Service Research and Development Department, came to the company to request a machine that would be the first step to automated mail. And, it was. Within the next 14 years, 11,000 Bunn tyers were in place in U.S. Post Offices throughout the country.
The Half Century Mark

In 1957, Bunn reached another historical date, our 50th year of manufacturing Bunn Tying Machines.
Half a century ago, Mr. Benjamin H. Bunn gave the world its first Package Tying Machine. 50 years and 24,999 machines later, inventor Bunn (centered) is himself the recipient of a tying machine “first”.
A mixture of happiness and surprise registers on the face of Mr. Benjamin H. Bunn, inventor of the Bunn Package Tying Machine, as he receives a miniature gold-plated machine commemorating the 5oth Anniversary of his invention. Presenting the gift are: Richard B. Bunn (left), Vise President of the Bunn organization, and Plant Superintendent Doug Gregory (right).
BUNN Expansion into a New Manufacturing Plant

In 1965, anticipating the needs of industry, Bunn tested a Japanese plastic strap machine. After several years of negotiations and product feature modifications at Bunn’s request, the Nichiro line of plastic strap machines were improved significantly.
In 1968, Bunn became one of 4 exclusive North American marketers for plastic strap machines. Business continued to boom and Bunn moved to a spacious plant in south suburban Alsip, Illinois, a 52,000 square foot building on a 5 acre tract that boasted 30% more production space.
The 75th Anniversary
In 1983, The B. H. Bunn Company marked its 75th Anniversary. Three-quarters century of business growth had made the Bunn name synonymous with package-closing equipment. With combined input from thousands of users in all phases of business, research and development, the Bunn Company could offer a complete range of tying and strapping equipment, along with accessories for virtually any bundling or unitizing application…for maximum productivity.
The 3rd Generation and a Move to Florida
In 1984, B. H. Bunn Company moved again – to Lakeland, Florida. The plant’s new equipment and facility resulted in dramatic savings in machining time and cost efficiency.
In 1989, John R. Bunn, the grandson of the inventor, developed new Bunn Models with a stronger and more reliable tying machine frame system than the old cast iron frames, while keeping the simplicity in the designs.
In 1997, after a short leave of absence, John R. Bunn, President purchased the B. H. Bunn Company from Richard Bunn to continue the family tradition. Since his return, the Bunn company has continued to grow with new designs and applications exceeding customer expectations.
New Developments
In 2000, the Next Generation of Bunn, Ring Tyer, machine was introduced with great strides in the market place. This newest model gives Bunn another dimensions to help customers with precision bundling far surpassing other models.
In 2001, Bunn introduced Stronger Twines. The US Postal System was experiencing an extreme amount of bundle failures due to rubber bands and plastic products. Bunn got involved again with the USPS Package Integrity Testing which showed that poor over used rubber bands, loose strapping on bundles and customers using improper twine was effecting the USPS bottom line. This new stronger Bunn Twine out performed all other method of bundling so well that, Bunn 10PLY Twine is now the Official Twine Specifications as listed in the Domestic Mail Manual for Bundled mail.
In 2004, Bunn introduced the BUNN-LER Stretch wrapping machine. This new Stretch Wrap Model takes the roll out of the customers hand and increases efficiency of bundling with stretch films.
In 2006, Bunn introduced BUNN-Clear-Ty – USPS Approved to meet the USPS Address Visibility issue. By redesigning the tying machine frame, we are now the only tying machine able to convert between most tying materials with minimum conversion time.
In 2018, BUNN introduced VIRTUAL-REPAIRMAN Training system to assist maintenance departments to learn and understand the BUNN Tying Machines.
In 2024, meeting the demands of reducing the use of Single Use Plastic and Microplastics, BUNN developed a new twine that is 100% Environment Safe Enviro Cellulo Twine. This new twine is stronger than blended twines runs in the BUNN Tying Machines with simple adjustments to perform properly.
In 2025, BUNN’s New 10PLY ENVIRO CELLULO Twine was tested in the Canadian Post during a 90 day test with outstanding results. Over 80 million pieces of mail, BUNN Twine tied bundles received a ZERO FAILURE RATE report from the Canadian Post. Just recently a few Canadian Post employees wanted to see how this customers was applying the twine to bundle of mail. Some asked, are they tying by hand, maybe this is a new product because of eliminating plastic….they were shocked to find the real answer, they couldn’t believe this concept is over 100 years old. One of the machines used in the testing was 36 years old. They were told, BUNN Machines are made to last.
The B H Bunn Company Today
Today, the momentum that built the B. H. BUNN COMPANY is still alive and going strong:
IN TYING MACHINES – Bunn manufactures an array of models of envelope, package, carton, meat roll tyers, along with custom units all with exclusive, patented features.
IN SALES AND SERVICE – With the industry’s largest network of Worldwide Sales, you can be assured quality service, whenever and wherever you need it. Their experience and expertise is second to none. At the Bunn Company, the last 119 years have simply been a prologue to many and varied opportunities within the package-closing industry in the current decade. Bunn’s reputation for quality products has not been exceeded by anyone. And it all started in 1906 with the encouraging notion of a postal clerk.