JHI-150NC > Products > NC/CNC Internal Grinding Machine > JHI-150NC
MACHINE FEATURES
  • Jainnher self-developed conversational operational interface for maximum operational convenience, and is easy to learn and understand.
  • Automatic operation and multiple settings. This allows for selecting coarse grinding, fine grinding, non-sparkle grinding and dressing.
  • High precision NC control provides automatic dressing with compensation function.
  • Ruggedly constructed throughout assures maximum rigidity and stability.
  • Table spindle, X-axis and Z-axis are driven by servomotors.
  • Intermittent lubrication on X-axis provides maximum smoothness of movement.

End Face Grinding Device (Optional)

  • When requested, the machine is available to equip with an End Face Grinding Device, allowing the machine to perform internal and end face grinding at one time.
  • This not only greatly increases machining efficiency but also achieves high perpendicularity accuracy.

 

Swiveling spindle head

  • The workhead can be swiveled +8° allowing for grinding tapered parts.

Motor Fixing Bar

  • Just as the motor starts running, a vibration occurs.
    The fixing bar is used for holding the motor in place. Amicrometric adjustment knob is provided for adjusting the belt tension.

Precise Feed Positioning

  • The grinding wheel feed is driven by a high performance servo motor, combined with precision ball screw transmission, providing high positioning accuracy.

Spindle Head Driven by Servo Motor

  • The spindle head is driven by a high performance servo motor, providing accurate variable speed change.
  • The servo motor drive features no speed loss and constant torque output no matter if the spindle is running at high or low speed. It guarantees outstanding grinding surface quality.
  • The servo motor drive allows spindle positioning control for convenient workpiece release.

Automatic Belt Tension Control

  • The belt tension is automatically controlled by the motor weight to assure proper belt tension at all times.
  • This ensures full power transmission from the motor.
    The specially designed belt tension eliminates too tight or too loose tensiion problems that may affect grinding quality.

Hydraulic Power / Lubrication Unit

  • The hydraulic power unit consists of two gear pumps, providing hydraulic power to the chuck and wheel dressing device. It also delivers lubrication oil to base slideways.
  • The hydraulic power unit consists of high quality parts, featuring low noise running and long service life.
  • A fan cooling device is mounted on the hydraulic power unit, providing efficient heat dissipation.