The Robins SG12 HD Smart is a heavy-duty seat and guide machine built to handle everything from small motorcycle heads to large multi-valve diesel heads in one setup. Its full-rotation roll fixture gives complete access for seat cutting, drilling, tapping, injector tube work, and thread repair.
The Smart model adds the Robins Touchscreen Interface, allowing fast control of spindle speed, feed, and depth while switching instantly between manual and Smart-screen operation. The built-in Dual Centering System and Robins Guide Honing Kit ensure precise guide geometry and near-zero runout for consistent seat quality across all engine types.
| Max Cylinder Head Size (in roll fixture) | 47 x 15 x 10 in (1193 x 381 x 254 mm) |
| Spindle Speed | 30 – 500 RPM |
| Spindle Stroke | 8.40 in (213 mm) |
| Spindle Tilt | ± 15 degrees |
| Electrical Supply | 220 V / 50–60 Hz / 1 Phase |
| Constant Varying Speed | Yes |
| Micro Fine Feed | Yes |
| Spring Free Tooling | Yes |
| Threading/Tapping Feature | Yes |
| Net Weight (Approx.) | 3274 lbs (1485 kg) |
| Shipping Weight (Approx.) | 3638 lbs (1650 kg) |
| Compare Model Specs |
Current Model
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Comparison Model
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| FEATURES |
SGH 12 HD Smart
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| Max Cylinder Head Size (in roll fixture) | 47 x 15 x 10 in (1193 x 381 x 254 mm) | 10 x 10 x 6 in (254 x 254 x 152 mm) |
| Spindle Speed | 30 – 500 RPM | 70 – 570 RPM |
| Spindle Stroke | 8.40 in (213 mm) | 5.75 in (146 mm) |
| Spindle Tilt | ± 15 degrees | ± 10 degrees |
| Electrical Supply | 220 V / 50–60 Hz / 1 Phase | 220 V / 50–60 Hz / 1 Phase |
| Constant Varying Speed | Yes | Yes |
| Micro Fine Feed | Yes | No |
| Spring Free Tooling | Yes | Yes |
| Threading/Tapping Feature | Yes | Yes |
| Net Weight (Approx.) | 3274 lbs (1485 kg) | 882 lbs (400 kg) |
| Shipping Weight (Approx.) | 3638 lbs (1650 kg) | 1103 lbs (500 kg) |
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