ROTARY SURFACE GRINDERS
Rotary Surface Grinder — Vertical, One Pass
Continuous one-piece-flow grinding of thin components
Overview
Established in 1964, Alex Machine Tools is one of India’s leading manufacturers and exporters of rotary surface grinders, exporting worldwide — including to customers across the USA, supported by our team in Houston, Texas.
Ideal for continuous one-piece flow, the RA series uses a special magnetic bed that allows loading and unloading outside the wheel. Available as the R20-A and R30-A, it is most suited to mass-scale precision grinding of thin components such as washers, circlips, spacers, and gears, and integrates easily with post-process gauging systems for automatic wheel-wear compensation.
Typical Components
Specifications
Model range: R20-A, R30-A
| Specification | Unit | R20-A | R30-A |
|---|---|---|---|
| Magnet Table Diameter | mm (in) | 550 (22) | 550 (32) ⚠ |
| Wheel Diameter | mm (in) | 300 (12) | 450 (18) |
| Max Wheel Clearance | mm (in) | 100 (4) | 175 (7) |
| Spindle Speed | rpm | 1200 | 960 (variable) |
| Spindle Motor | hp | 5 | 15 |
| Table Speed | rpm | 0.5 / 1 | 0.5 / 1 |
| Table Motor | hp | 1 / 1.5 | 25 ⚠ |
| Rapid Traverse Motor | hp | 1 | 1 |
| Coolant Motor | hp | 0.25 | 0.25 |
| Machine Size L×W×H | mm | 1000×1000×1650 | 2000×1600×1900 |
| Net Weight | kg (lb) | 2500 (5512) | 5000 (11024) |
• ⚠ Two source values (R30-A table diameter in inches, and R30-A table motor hp) appear inconsistent on the live site — verify before publishing.
Some source values are being verified against the official catalog.
See the RA in Action
Machine introduction, a real case study on components ground, and what our customers say.
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