ROTARY SURFACE GRINDERS
Rotary Surface Grinders — Horizontal Spindle
Highest accuracies with shorter grinding times
Overview
Established in 1964, Alex Machine Tools is one of India’s leading manufacturers and exporters of surface grinding machines, manufactured in India and supported by our US-based team in Houston, Texas.
RH horizontal spindle rotary grinders feature a mechanically driven circular table supported by precision scraped flat ways, achieving the highest possible accuracies combined with shorter grinding times. Magnetic chuck sizes span 500 mm to 2000 mm across the RH-500 to RH-2000 models, with automation extending to fully adaptive grinding and power-dependent downfeed — ideal for high-throughput flat grinding of compressor plates, brake components, gears, and bearing parts.
Typical Components
Specifications
Model range: RH-500, RH-650, RH-1000, RH-1500, RH-2000
| Specification | Unit | RH-500 | RH-650 | RH-1000 | RH-1500 | RH-2000 |
|---|---|---|---|---|---|---|
| Magnetic Chuck Diameter | mm | 500 | 650 | 1000 | 1500 | 2000 |
| Vertical Range up to | mm | 200 | 250 | 300 | 650 | 610 |
| Table Speed | rpm | 10–50 | 8–40 | 4–15 | 4–15 | 5–12 |
| Auto Cross Feed | mm/min | 50–200 | 100–500 | 100–500 | 100–500 | 3000 |
| Each Revolution Handwheel | mm | 0.002 | 0.002 | 0.002 | 0.002 | — |
| Power Elevation | mm/min | 100 | 100 | 100 | 100 | 300 |
| Grinding Wheel OD×H×ID | mm | 250×25×76.2 | 250×25×76.2 | 350×50×127 | 350×50×127 | 508×203.5×50 |
| Wheel Speed | rpm | 1500 | 1500 | 1500 | 1500 | 1500 |
| Grinding Wheel Motor | hp (kW) | 5 (3.7) | 5 (3.7) | 10 (7.5) | 15 (12) | 20 (15) |
| Table Rotation Motor | hp | 1 | 3 | 5 | 10 | 19 |
| Cross Feed Motor | hp | 0.5 | 0.1 | 1 | 2 | 3.4 |
| Power Elevation Motor | hp | 0.25 | 0.25 | 0.75 | 1.5 | 3.4 |
| Coolant Pump | hp | 0.15 | 0.25 | 0.25 | 0.5 | 0.25 |
| Machine Size L×W×H | mm | 1400×1400×1650 | 1700×1400×1950 | 2700×1500×2000 | 2700×1500×2000 | 4800×4050×2850 |
| Net Weight | kg | 1900 | 2500 | 5500 | 8000 | 4000 |
| Gross Weight | kg | 2600 | 3200 | 6300 | 8500 | 25000 |
Some source values are being verified against the official catalog.
See the RH in Action
Machine introduction, a real case study on components ground, and what our customers say.
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