THE AUTOMATIC MARKING SYSTEM (AMS)
Eliminate Your #1 Avoidable Risk in Tire Retreading – MISSED NAIL HOLES.
A missed nail hole isn’t just a small defect. It’s a potential source of scrap, rework, downtime, warranty exposure, and lost trust.
THE PROBLEM
– Small Misses. Big Consequences.
Every retread operation faces the same challenge:
• Inspection quality varies from person to person.
• Fatigue and distraction impact consistency.
• Training and experience levels differ across shifts.
• Small injuries can be difficult or impossible to see manually.
• The inspection process is only as strong as its weakest handoff.
The current process for pinpointing flaws in casings is the use of NDT machines that send high-voltage currents through the casing, producing a visible spark at damage points. Operators are then responsible for marking those flaws so the casing can move on to repair. However, human error is a major challenge.
“MODERN” NDT LIMITATIONS:
• Operator dependent to mark the tire. The NDT is only as effective as the operator
• False negatives (missed holes) by human decision
• Probe design limitations and maintenance challenges
THE RESULT
Missed injuries become rework, scrap, lost production time, customer dissatisfaction, and potential field failures. We have conducted field tests over thousands of tires that indicate an average of 2% of casings with nail holes are missed by human inspectors!
Test out this calculator to see how much nail holes are costing YOU!
This 11R22.5 radial precure retread had a missed nail hole in the tread
THE SOLUTION – Shamrock’s Automatic Marking System (AMS)
The AMS retrofits your existing NDT equipment with patent pending hardware, software, and a specially designed floating probe that automatically detects and marks tire injuries on both the inside and outside of the casing. Protect your operation from scrap and re-run costs, customer claims, downtime & damaged reputation!
• Consistent Detection – Automated flaw detection removes the variability associated with manual processes.
• No Fatigue Factor – The system operates with the same accuracy throughout every shift.
• Repeatable Results – Consistent performance regardless of operator, lighting conditions, or workload.
• Precise Marking – AMS automatically identifies and marks flaw locations, eliminating guesswork.
BUILT FOR FAST PAYBACK ON YOUR INVESTMENT . . . When the AMS finds an average of 1.5 missed injuries per day, you can expect a payback period of less than one year!
Automatic Marking of the Casing on the outside
AND the inside! 
THE PROOF
The AMS patent‑pending Automatic Marking System has been put to the test in the field across four states and testing over 70,000+ tires and counting!
On average, 2% of nail holes are missed by operators at initial inspection, then marked by the AMS in its station after buffing.
AMS helps reduce:
• Scrap
• Rework
• Downtime
• Warranty claims
• Customer complaints
• Damage to your reputation
WHAT YOU’LL GET:
Every order of the Automatic Marking System (AMS) will include:
• AMS retrofit kit
• Industrial PLC and software
• Special floating probe
• Professional installation and testing
• One Precise Defect Locator (PDL) for your repair station
• Five days of onsite startup and training
• Additional AMS paint refill kit
• Commissioning support
• Full ownership of operational data
• 12 months of remote support
• One-year parts warranty
The movement toward automation in tire retreading isn’t just about keeping pace – it’s about restoring the industry’s core promise: that every retread tire leaving the plant is worthy of the brand and the people standing behind it!
Ready to move beyond firefighting and reclaim your place at the forefront of tire retread manufacturing?
To learn more about Shamrock’s Automatic Marking System and watch a video demo, Click to fill out this form. You can also email: order@shamrockmarketinginc.com or call (502) 266-7403!
*Certain products and technologies described on this website are covered by one or more pending patent applications.