This is a modified grob 4v-18 band saw. The variable speed pulley has been removed from the motor and replaced with a specially machined fixed diameter 5" pulley. The original mechanical varispeed adjustment crank now serves as a belt tension adjuster. An oversize 5hp variable frequency AC drive has been installed to both allow variable speed control of the factory 3hp motor (In addition to the 4 speed factory gearbox) AND use with single phase 220v power. The AC drive allows a wider speed range than the OEM mechanical varidrive. Grob offers their own version of this system now as an $1800 option. There are 2 extra blades, a blade welder, and pneumatic adjustable power feed.
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