Manufacturers of tire service equipment see a lot of change in their industry, from tire types and sizes to nitrogen-filled. Their focus is shifting to faster, safer machines capable of changing tires on larger rims due to recent trends — some shops are servicing rims as large as 36". To keep up, smaller shops as well as chain retail shops are switching out their tire service equipment.
Matching shop needs
Paul Zarlengo, project manager for shop equipment at Mac Tools, said that maximum outside tire diameter, maximum rim width, outside clamping diameter range and the inside clamping diameter range are the four general criteria involved when assessing tire changers. When a tech knows what kind of rim and tire they will be dealing with most, these areas are key in purchase decisions.
When selecting a tire changer, shop owners need to review the sizes of tires and rims coming through their shop.
"For example, common small size tires are motorcycles … down to golf cart tires," Zarlengo said. "Large tires range from 18-wheeler OTR tires up to large agriculture tires like those on tractors and combines."
Another thing buyers look for is the bead-breaking force, which determines the strength needed for popping tires off the rims. According to Zarlengo, prices for this equipment can run anywhere from about $3,000 to $6,000.
Manufacturers are also seeking ways to improve hydraulics in tire changers, for more efficient service.
"Older hydraulic tire-changing equipment consumes much more air than the machines of today," said Ryan Lang, commercial portfolio manager of Air Solutions and Ingersoll Rand Industrial Technologies.
"In some cases, units today are using about 20 percent of the air consumption" as compared with machines using older technology, he said.
Run-flats and PAX
The PAX tire and its sister, the "run-flat" tire, are recent developments in the industry. Key elements of the Michelin-certified PAX system include special wheels with unique tire bead locks, and a solid insert that supports a share of the vehicle's weight to continue rolling when tire pressure drops.
About two years ago, Honda put PAX tires as an option on their Odyssey minivan; Toyota followed suit with the Sienna.
But when the OEMs made the PAX available, "they didn't consider that the tire-changer industry hadn't really caught up with the PAX style tire designs," Zarlengo said.
"Whenever they had a flat, or needed to change a tire, the OEMs had to ship [mounted] tires and rims. It became a bit of a nightmare.
"Now the tire changer industry has caught up, but it entails a very specialized type of changer. PAX changers can change other tires as well, but they are uniquely designed to deal with PAX tires."
Tractor-trailers are also impacting the frontier of tire technology.
"The Super-single tire [designed for 18-wheel vehicles] is not two tires, but one big wide one," Zarlengo said. "This new over-the-road tire design is still very young, but a few fleet companies are experimenting with it."
According to Zarlengo, changers designed particularly for Super-singles would also be compatible with large tires for agriculture equipment, and the equipment would cost about $20,000.
Up in the air about nitrogen
Lang feels that more companies are recognizing the benefits of nitrogen, and maintains that it is becoming common in the vehicle market.
"People were skeptical [at first], they thought it was snake oil," Lang said. "Through studies driven by independent third groups, our claims of
tire life and fuel economy improvements have been validated over and over."
Nitrogen is regularly used in the tires of 747s and NASCAR cars and NHRA drag racers — in short, extreme environments where every advantage is needed to keep tires cool and stable. Should nitrogen inflation systems make a successful leap between markets, manufacturers are creating upgrade kits which will make their machines compatible with nitrogen systems.
In an effort to expand their service capabilities, Hunter has made PAX® tire system kits available for their TC3500, TC3250, TCX550BPS and TCX500BPS tire changer models to give shops a variety of...