The Robins Rubi-Surf 1.7 is a CNC surfacing machine designed for precision machining of cylinder heads and engine blocks in racing and performance engine shops. It features a 360 mm cutterhead, RubiSmart touchscreen control, and programmable single-pass or multi-pass cycles for consistent material removal and accurate surface finishes. An AC-servo vertical feed system, variable spindle speed, and adjustable feed rates allow the operator to control surface quality for cast iron and aluminum applications. Turcite-coated slideways, load monitoring, and a central lubrication system ensure durability, stability, and repeatable machining performance.
| X-Axis Workhead Travel | 41.5 in (1,054 mm) |
| Max Cylinder Head Size (in roll fixture) | 35 in (889 mm) |
| Cutter Head Diameter | 14.0 in (356 mm) |
| Spindle Speed | 200 – 1,200 RPM (Variable, CNC AC Servo) |
| Workhead Feed Rate | 12.70 – 635 mm/min (Infinitely Variable, CNC AC Servo) |
| Surface Finish (Ra) | As low as 0.5 µm Ra (≈ 20 µin) |
| Net Weight (Approx.) | 3352 lbs (1520 kg) |
| Shipping Weight (Approx.) | 3969 lbs (1800 kg) |
| X-Axis Slideways | Low-friction Turcite slideways |
| Net Weight (Approx.) | RubiSurf Smart Series control panel |
| Lubrication System | Centralized automatic lubrication |
Control System
Axis & Motion Control
Spindle & Feed
Machine Structure