Milling Head R-8 Variable Speed

An industrial milling head is used for heavy machining of metal parts, primarily in milling and finishing operations. The R-8 MILLING HEAD is ideal for grinding shops and workshops that need to work with different materials and thicknesses. With 8 rotation speeds and 45° lateral inclination, it allows performing from heavy roughing to precision finishing. It's widely used in machining blocks, cylinder heads and automotive components that require high dimensional precision.

The maximum RPM of the R-8 milling machine depends on the installed motor power. In the 5 hp version, rotations range from 80 to 930 rpm, while the 8 hp version reaches up to 1,890 rpm. The R-8 MILLING HEAD offers 8 different speeds through tempered and ground gear transmission. The spindle stroke is 2.36 inches (60 mm) and accepts ISO 40 or ISO 50 tapers, ensuring versatility for different tool types.

The milling head accepts ISO 40 or ISO 50 tapers in the tool-holding spindle. This compatibility allows using a wide variety of standardized cutting tools. The R-8 MILLING HEAD comes with prismatic base and spindle nut included for adaptation to the machine crossbeam. Transmission is through tempered steel gears with automatic lubrication by internal pump, ensuring greater durability and precision in operations.

The manual milling machine requires manual movement of the head on the crossbeam, while the milling machine with cross feed screw allows controlled and precise feed. The R-8 MILLING HEAD comes standard with manual operation, but offers the screw for transverse movement as optional. The manual version is more economical and suitable for occasional work, while the cross feed version offers greater precision and productivity in repetitive operations. Both maintain the same 8 speeds and 45° inclination.

The speed system works through tempered and ground steel gears that change the tool-holding spindle rotation. The R-8 MILLING HEAD has 8 fixed speeds that vary according to power: 5 hp motor offers 80-230-320-930 rpm, while 8 hp offers 60-470-650-1,890 rpm. Lubrication is automatic via internal pump, ensuring smooth operation. It's possible to install optional sub-head that reduces rotations to 50% of original values, expanding work options.

Industrial milling machine maintenance involves regular checking of automatic lubrication, gear cleaning and verification of 220V three-phase electrical voltage. The R-8 MILLING HEAD has internal lubrication pump that facilitates maintenance, but it's important to check oil level periodically. Tempered gears have greater durability, but need inspection to detect wear. Cleaning is recommended after use in environments with metal chips and verification of lateral inclination to maintain 45° precision.

The CABEÇOTE FRESADOR R-8 is quoted on demand, and pricing varies with each customer's needs, including accessories, tooling and optional features. With in-house technology developed by Chinelatto in Brazil since 1962, you can count on responsive support from our technical team. Spare parts: many are kept in stock and the others are manufactured within a reasonable lead time. Request a quote at chinelatto.com.br/contact — our sales team will contact you very soon.