Rottler F2B Cylinder Honing Machine

The Rottle F-2B is a heavy-duty, floor-mounted vertical boring bar designed for precision automotive engine block cylinder boring and sleeving. It features automatic centering, 2 spindle speeds and is known for its rigid,, independent operation, typically weighing around 2,000 lbs, making it a staple for engine rebuilders. 

Key Technical Specifications & Features: 

• Capacity: Designed for boring cylinder blocks, including larger V8 engines (e.g., Chevy 348/409).
• Spindle: Features a quick-change lever for two spindle speeds, typically powered by a 230-460 volt, 3-phase motor.
• Spindle Speeds: Ranging from 25 - 600 R.P.M., often infinitely variable under load.
• Feeds:  Includes multiple feed rates, such as 0.003" (0.0762mm) and 0.0055" (0.1397mm) per revolution.
• Operation: Features air-operated clamping and lifting devices for rapid, accurate centering on cylinder bores.
• Design: Utilizes a rigid,, independent, vertical design, often allowing for boring perpendicular to the crankshaft center line.
• Controls: Equipped with a rear enclosure containing relays for managing feeds, rapid travels, and spindle clamping.