Manual Crankshaft Grinder 1.5-Meter — RVC-1500M

A crankshaft grinder is used to correct defects like out-of-roundness, taper and scratches on crankshaft journals. The RVC-1500M can grind crankshafts up to 59 inches (1500mm) in length and 21.3 inches (540mm) in diameter, restoring original geometry with micrometric precision. It's essential for rebuilding worn engines, allowing perfect fit of new bearings and extending engine life.

The RVC-1500M from Chinelatto Industrial handles crankshafts up to 59 inches (1500mm) between centers and maximum swing of 21.3 inches (540mm) diameter. The crankshaft headstock has electronic speed control from 20 to 100 rpm with 1hp motor, while the grinding wheel head operates with 5hp motor at 1150 rpm. The table has slow feed of 1.25 inches (31.7mm) per turn and grinding wheel allows micrometric feed of 0.24 inches (6mm) per turn.

The RVC-1500M grinder accepts crankshafts from truck engines, tractors, industrial generators, marine engines and other heavy-duty applications. With 59 inches (1500mm) between centers and swing up to 21.3 inches (540mm), it handles from 6-cylinder diesel engines to large industrial motors. Adjustable steady rests of 1-3.1 inches (25-80mm) and 3.1-4.9 inches (80-125mm) provide proper support for different journal diameters, allowing work on wide range of heavy-duty engines.

Manual grinders depend entirely on operator skill to control speed and feeds, resulting in greater variation in final quality. The RVC-1500M with electronic control offers precise variable speed from 20-100 rpm via electronic drive, ensuring constant rotation and uniform finish. Electronic system eliminates human variations, reduces work time and provides greater repeatability in results, especially important for large industrial crankshafts.

The crankshaft is mounted between universal chucks and supported by steady rests to prevent deflection. The centering device with dial indicator perfectly aligns each journal. During controlled rotation of 20-100 rpm, the 28-inch (711mm) grinding wheel spins at 1150 rpm doing the rough grinding. Micrometric feed of 0.24 inches (6mm) per turn allows precise depth control. Coolant system maintains proper temperature and continuous measurement device monitors diameter in real time.

An industrial crankshaft grinder like the RVC-1500M has service life of 15-20 years with proper maintenance. Maintenance includes regular bearing oil changes, coolant system cleaning, alignment verification and grinding wheel balancing. Optional anti-vibration kit helps preserve precision. Weighing 6600 lb (3 tons) with robust construction, it supports intensive use provided preventive maintenance intervals and calibration of measuring devices are respected.