The Robins Rubi-Surf 1.8 is a CNC surfacing machine designed for accurate and repeatable machining of cylinder heads and V-block engines. The RubiSmart touchscreen control system removes all physical switches, making setup faster and more straightforward. A 420 mm cutterhead, CNC-servo travel, and fully adjustable spindle speed and feed rates allow precise control of material removal and surface finish quality, achieving results down to 0.5 Ra μm. The machine’s rigid structure and large workhead capacity ensure stable cutting performance and high productivity for all types of engine rebuilding and machine shop operations.
| X-Axis Workhead Travel | 49.5 in (1,257 mm) |
| Max Cylinder Head Size (in roll fixture) | 41 in (865 mm) |
| Cutter Head Diameter | 16.5 in (419 mm) |
| Spindle Speed | 200 – 1,200 RPM (Variable, CNC AC Servo) |
| Workhead Feed Rate | 12.7 – 635 mm/min (Infinitely Variable, CNC AC Servo) |
| Surface Finish (Ra) | As low as 0.5 µm Ra (≈ 20 µin) |
| X-Axis Slideways | Low-friction Turcite slideways |
| Operator Panel | RubiSurf Smart Series control panel |
| Lubrication System | Centralized automatic lubrication |
| Net Weight (Approx.) | 4585 lbs (2080 kg) |
| Shipping Weight (Approx.) | 5247 lbs (2380 kg) |
Control System
Axis & Motion Control
Spindle & Feed
Machine Structure
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| FEATURES |
Rubi Surf 1.8
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| X-Axis Workhead Travel | 49.5 in (1,257 mm) | 41.5 in (1,054 mm) |
| Max Cylinder Head Size (in roll fixture) | 41 in (865 mm) | 35 in (889 mm) |
| Cutter Head Diameter | 16.5 in (419 mm) | 14.0 in (356 mm) |
| Spindle Speed | 200 – 1,200 RPM (Variable, CNC AC Servo) | 200 – 1,200 RPM (Variable, CNC AC Servo) |
| Workhead Feed Rate | 12.7 – 635 mm/min (Infinitely Variable, CNC AC Servo) | 12.70 – 635 mm/min (Infinitely Variable, CNC AC Servo) |
| Surface Finish (Ra) | As low as 0.5 µm Ra (≈ 20 µin) | As low as 0.5 µm Ra (≈ 20 µin) |
| X-Axis Slideways | Low-friction Turcite slideways | Low-friction Turcite slideways |
| Operator Panel | RubiSurf Smart Series control panel | RubiSurf Smart Series control panel |
| Lubrication System | Centralized automatic lubrication | Centralized automatic lubrication |
| Net Weight (Approx.) | 4585 lbs (2080 kg) | 3352 lbs (1520 kg) |
| Shipping Weight (Approx.) | 5247 lbs (2380 kg) | 3969 lbs (1800 kg) |
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