Imagine a rough metal blank transforming through meticulous processes into a mirror-smooth surface with precision measured in fractions of a human hair's diameter. This isn't just manufacturing—it's the art of precision machining. RAM Tool, Inc. has mastered this art through its formidable in-house grinding capabilities.
Understanding the critical role of precision grinding in enhancing product quality, reducing lead times, and strengthening production control, RAM Tool has invested in six surface grinders. This includes three Okamoto ACC-series CNC surface grinders and three Acer AGS-series surface grinders—a strategic dual-brand approach that balances high-end precision with versatile grinding needs.
Renowned for their exceptional accuracy, reliability, and automation, RAM Tool's three Okamoto grinders comprise two distinct models:
| Quantity | Model | Type | Worktable Size |
|---|---|---|---|
| 1 | Okamoto ACC-28-60 | Surface Grinder | 28" × 60" |
| 2 | Okamoto ACC-6-18B | Surface Grinder | 6" × 18" |
Complementing the Okamoto units, RAM Tool's three Acer grinders provide reliable performance for general grinding applications:
| Quantity | Model | Type | Worktable Size |
|---|---|---|---|
| 1 | Acer AGS-2448 | Surface Grinder | 24" × 48" |
| 2 | Acer AGS-618 | Surface Grinder | 6" × 18" |
RAM Tool delivers surface finishes ranging from 0.8 Ra (32 microinches) for near-mirror quality to 50.0 Ra (2000 microinches) for cast-iron texture applications requiring minimal material removal.
| Ra (µm) | Ra (µin) | RMS (µin) | CLA (N) | Rt (µm) | N | Cutoff Length (in) |
|---|---|---|---|---|---|---|
| 0.8 | 32 | 32.5 | 32 | 4 | 6 | 0.03 |
| 1.6 | 63 | 64.3 | 63 | 8 | 7 | 0.03 |
| 3.2 | 125 | 137.5 | 125 | 13 | 8 | 0.1 |
| 6.3 | 250 | 275 | 250 | 25 | 9 | 0.1 |
| 12.5 | 500 | 550 | 500 | 50 | 10 | 0.1 |
| 25.0 | 1000 | 1100 | 1000 | 100 | 11 | 0.3 |
| 50.0 | 2000 | 2200 | 2000 | 200 | 12 | 0.3 |
RAM Tool achieves precision tolerances of ±0.0002 inches (0.00508 mm or 5.08 µm), meeting stringent requirements for aerospace, medical devices, and other high-precision applications.
| Tolerance Type | Inches (in) | Millimeters (mm) | Microns (µm) |
|---|---|---|---|
| Standard Tolerance | ±0.030 | 0.762 | 762 |
| Precision Tolerance | ±0.0002 | 0.00508 | 5.08 |
Beyond its grinding expertise, RAM Tool operates over 100 CNC machines within its 80,000-square-foot facility, including machining centers, milling machines, EDM equipment, and CMM inspection systems. This comprehensive capability allows the company to handle projects ranging from small precision components to massive parts weighing up to 44,000 pounds.
The company's investment in advanced equipment reflects its commitment to providing direct manufacturer pricing, shortened lead times, and complete control over the manufacturing process—all performed in-house at its Grafton, Wisconsin facility.