International Rolling Mills specializes in precision light gauge, thin gauge, and ultra light gauge slitting lines — the high-accuracy end of the slitting market where tolerances are measured in ten-thousandths of an inch and equipment selection directly determines product quality.
Our inventory spans new IRM-built machines, fully refurbished precision ring slitters, and inspected used equipment, covering material thicknesses from .0005″ to .125″ across ferrous and non-ferrous metals. Whether you’re a specialty metal stamper slitting refractory alloys in-house, a national laboratory processing exotic materials at ultra-thin gauge, a battery developer needing electrode strip cut to tight tolerances, or an electronics materials producer requiring high-purity alloy strip — IRM has the equipment and engineering depth to specify the right solution.
We primarily sell complete slitting lines — configured with new payoff, recoiler, and electrical controls integrated around a refurbished or new-build slitter head.
We also supply individual slitter heads for customers integrating into an existing line or building their own system around a proven precision head.
IRM offers complete precision slitting lines and individual slitter heads across four primary machine platforms. Every complete line is configured with new payoff, recoiler, and electrical controls integrated around the slitter head.
| Machine | Category | Gauge Range | Key Distinction |
|---|---|---|---|
| IRM Model 310 | Ultra Light Gauge | .0005″ – .020″ | New-build head; complete lines with new payoff, recoiler & controls; accepts 189 tooling |
| Ruesch Model 189 | Ultra Light Gauge | .0005″ – .020″ | IRM-refurbished; complete lines built with new controls, or head-only supply |
| Ruesch Model 149 | Light Gauge | .005″ – .060″ | Integral slitter-recoiler; complete lines or head-only; lab & production |
| Ruesch Model 76 | Light Gauge (Compact) | .003″ – .060″ | Compact removable head; head-only or complete line; R&D and narrow strip |
IRM’s precision slitting lines serve some of the most demanding material processing environments in the world. Our customers require equipment that performs consistently at extreme gauges with minimal camber, burr-free edges, and repeatable slit widths — often in materials and dimensions that fall outside the capability of conventional service center slitting lines.
Connector components, shim stock, structural foil, and specialty alloy processing for leading aerospace prime contractors and U.S. defense programs where material traceability is non-negotiable.
Battery electrode and current collector strip in copper foil, nickel strip, and specialty aluminum at gauges approaching the limits of conventional tooling. Built for next-generation energy storage programs.
Reliable slitting of exotic alloys in low-volume, high-precision environments. Specified by U.S. national laboratories, fusion energy developers, and advanced materials research programs.
Precision slit strip in stainless steel, nitinol, titanium, and cobalt-chrome for surgical instruments, implantable devices, and diagnostic equipment. Clean, burr-free edges on high-value material.
Brazing alloy producers, solder preform manufacturers, and sputtering target fabricators requiring ultra-thin gauge slitting of indium, tin, silver, gold, and high-purity specialty alloys for semiconductor and PCB applications.
Deep draw fabricators and precision stampers processing tantalum, molybdenum, niobium, cobalt, and titanium who need in-house slitting capability that no service center can supply at their required gauges and widths.
IRM’s precision slitting lines handle the full spectrum of specialty metals — from common structural alloys through the most challenging refractory and exotic materials. IRM-manufactured tooling is specified for each material type to deliver clean, accurate slitting at gauges that conventional equipment cannot accommodate.
| Common Alloys | Superalloys & High-Performance | Refractory & Exotic | Precious & Electronic |
|---|---|---|---|
| Stainless Steel | Beryllium Copper | Molybdenum | Gold & Gold Alloys |
| Aluminum & Alloys | Titanium & Ti Alloys | Tantalum | Silver & Platinum |
| Copper & Brass | Nickel & Nickel Alloys | Niobium (Columbium) | Indium & Indium Alloys |
| Carbon & High-Carbon Steel | Cobalt & Cobalt Alloys | Zirconium | Nitinol (NiTi) |
| Tin & Tin Alloys | Tungsten & W Alloys | Hafnium & Rhenium | Brazing Alloy Strip (Ag, Au, Cu) |
| High-Purity Solder Alloys | Cobalt-Chrome (CoCr) | Germanium | Nitinol (NiTi) |
Not seeing your material? IRM regularly works with engineers on non-standard and emerging alloys. Contact us to discuss your application.
Founded in 1978, International Rolling Mills has built its reputation in the narrow end of the metal processing equipment market — the precision, thin gauge, and specialty applications that larger equipment builders don’t prioritize. Our engineers have hands-on experience operating, rebuilding, and configuring the machines we sell.
When you work with IRM on a slitting line, you’re working with engineers who understand what happens at the slitter head — not just salespeople who know the model numbers.
Thin gauge precision slitting is not a commodity process. The right equipment specification depends on your material, gauge range, slit width requirements, tension control needs, and production environment. IRM’s engineering team works with buyers to identify the right solution — whether that’s a complete new-build line, a refurbished line with new controls, or a standalone slitter head.
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