USED 1971 BOYAR-SCHULZ CHALLENGER HR 612

1971 Boyar-Schultz Challenger HR612 Surface GrinderFeaturing Integrated Optidress Precision Wheel Dressing SystemSerial No: T6635047 | 6" x 12" Capacity | Roller Way DesignOverviewThis 1971 Boyar-Schultz HR612 is a premium tool-room asset, elevated by the inclusion of a factory-integrated Optidress system. While the Challenger series is already legendary for its roller-way table—which provides "finger-tip" manual control—the addition of the Optidress transforms this machine into a high-capability form grinding station.Ideal for tool-and-die shops, this machine allows for the creation of intricate punches, dies, and gauges with extreme repeatable accuracy. The 1971 vintage represents the peak of American mechanical engineering, offering a level of mass and rigidity that modern lightweight grinders cannot match.Technical SpecificationsYear of Manufacture: 1971Table Capacity: 6" x 12"Table Ways: Precision Roller Bearings (HR Series)Spindle Motor: 1 HP Direct Drive (3,450 RPM)Vertical Capacity: 12" under 7" wheelLongitudinal Travel: 13"Cross Travel: 7"Lubrication: One-Shot Central Lubrication SystemThe Optidress AdvantageThe Optidress unit is the centerpiece of this machine’s capability:Optical Precision: Features high-magnification optics to view the diamond-to-wheel contact point clearly.Complex Profiles: Dress radii, angles, and complex tangent forms directly on the machine.Eliminate Setup Time: No need for external radius dressers or templates; dress the wheel and return to grinding in seconds.On-Machine Inspection: Allows the operator to visually verify the wheel profile without disturbing the workpiece setup.Condition & ValueMechanical Integrity: The Roller Way system remains smooth and responsive, ensuring a superior surface finish and reduced operator fatigue.Investment Grade: The Boyar-Schultz HR612 with an Optidress is a rare find on the used market. The Optidress unit alone often accounts for a significant portion of the machine's resale value.Serviceable: All components, including the spindle bearings and way rollers, are fully serviceable with readily available industrial parts.Dealer Note: This is not just a surface grinder; it is a complete precision profiling solution. If your shop requires high-accuracy form grinding with the tactile feedback of a manual machine, this HR612 is the perfect candidate.

* Table Capacity: 6" x 12"
* Vertical Capacity: 12" under 7" wheel
* Longitudinal Travel: 13"
* Lubrication: One-Shot Central Lubrication System
* Cross Travel: 7"