VAS 6230A Road Force Measurement® System

The exclusive Road Force Measurement® system applies up to 1,400 pounds (635 kg) against the tire. The loaded roller detects non-balance, radial-force-related vibrations caused by eccentricity and constructional variation of the tire and wheel. Unlike non-contact measurement, the roller samples the entire footprint of the tire including the sidewall’s contribution to ride quality.

As an additional alternative to Road Force® mode, the operator may also choose a QuickMatch® mode to quickly measure loaded runout alone.

Lack of tire uniformity is a common and often hidden source of vibration. As a tire rolls, it flexes as if it were made of springs. Vibration results when tire stiffness is not uniform.

VAS6230A shown with optional printer and printer support kit (VAS6230A/1) and factory installed wheel lift option (VAS6230A/2).

The VAS6230A measures lateral and radial rim runout without removing the tire from the rim and quickly indicates if runout is tire-related. Runout can also be measured at the actual bead seat on a bare rim.

The VAS6230A slowly rotates the wheel automatically during measurement.* The VAS6230A then calculates the contributions of the tire and the rim to the vibration problem and presents the technician with easy-to-follow repair instructions.

Slippage detection is also automatically monitored to ensure the technician achieves accurate measurements.

Rim runout can be measured without removing the tire...

... or directly at the bead seat on a bare rim.

Hunter’s optional integrated Wheel Lift System helps technicians safely service today’s oversized custom, light-truck and medium-duty commercial wheels quickly and easily.
(Wheel Lift option must be ordered with the machine and cannot be added as an upgrade to existing units in the field. Order VAS6230A and VAS6230A/2.)

Benefits:

• Helps reduce operator fatigue
• Helps center heavy wheels up to 175 lbs. (80 kg) more accurately for better balancing results.
• Saves valuable workspace on the shop floor and avoids the excessive costs associated with bulky stand-alone wheel lift units.
• “Drop-away” feature automatically lowers the lift when the hood is closed – eliminates procedural steps associated with standalone wheel lift units.