ORIGINAL ROTOMATICS®
These guitar machines are a triumph in engineering and style. The housing provides a maximum bearing for worm gear and string post. Gear Ratio is 14:1. Worm and gear are precision-cut for perfect meshing. This eliminates backlash and slippage. Countersunk tension tension screw permits players to regulate turning tension to any degree. Gear box has a special lubricant for lifetime, trouble-free service. Includes 5/8' washers, bushings and wood screws.ROTOMATICS® WITH 18:1 GEAR RATIO (102-18 SERIES)
The original Rotomaitc® with an improved higher ratio gearing. The 18:1 ratio provides for finer tuning and greater stability. The finer gears provide smoother tuning and a higher degree of backlash elimination. This new version of the Rotomatic® uses the exact housing as the original. Only the gearing has changed. Includes washers, bushing and wood screws.
SUPER ROTOMATICS® (109 SERIES)
The super Rotomatic® has a 14:1 gear ratio. The 3 step button gives the machine a distinctive look and the seated-in lubrication assures smooth gear-and-worm movement for the life of the machine
MINI ROTOMATICS® (205 SERIES)
SUPER ROTOMATICS® (109 SERIES)
The super Rotomatic® has a 14:1 gear ratio. The 3 step button gives the machine a distinctive look and the seated-in lubrication assures smooth gear-and-worm movement for the life of the machine
MINI ROTOMATICS® (205 SERIES)
Totally Proffesional in design and performance. Small, lightweight, this precision machine fits guitar headpieces that will not take full size machines. The mini buttons provide more space for player’s fingers (even larger fingers) to tune strings. Gear ratio is 14:1. Sealed in lubrication keeps mini perfect for a lifetime! Includes 5/8” washers, bushings and wood
MID-SIZE ROTOMATICS® (305 SERIES)
MID-SIZE ROTOMATICS® (305 SERIES)
A mid size Mini Rotomatic, with all the advantages of the original Mini Rotomatic, but with an 18:1 gear ratio for finer, more precise tuning. Includes all necessary mounting hardware and the famous Grover lifetime guarantee.
ORIGINAL LOCKING Rotomatics® (106 SERIES)
The introduction of the new Grover Locking Rotomatics® gives you the ease of use provided by a standard tuner and the positive locking of our internal cam post. Simply insert the string through the string hole, pull to tension by hand and begin tuning. As you start to tune, only the locking cam in the string post turns. Once the string is locked, the string post begins to turn allowing you to bring the string to pitch. In less than one revolution of the string post, you will be in tune, to stay in tune. Gear ratio is 18 to 1.
The introduction of the new Grover Locking Rotomatics® gives you the ease of use provided by a standard tuner and the positive locking of our internal cam post. Simply insert the string through the string hole, pull to tension by hand and begin tuning. As you start to tune, only the locking cam in the string post turns. Once the string is locked, the string post begins to turn allowing you to bring the string to pitch. In less than one revolution of the string post, you will be in tune, to stay in tune. Gear ratio is 18 to 1.
MINI LOCKING ROTOMATICS® (406 SERIES)
The same innovative engineering and classic design as the original Rotomatics, but with smaller buttons for 6-in-line guitars, or for those who prefer a little more space for their fingers. Gear ratio is 18:1.
US PATENT NUMBER 6,078,001
Grover's patented locking tuners have eliminated the obstacles of other locking devices. Since there are no external mechanisms to initiate the locking action, the machine head's appearance is like any other. The entire locking mechanism is self-contained and self actuated.
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