• 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.

Massive Machine Structure

Optimal Structural Design
Guarantees Lifetime Accuracy

To maintain the long term accuracy after years of operation, the machine structure of the JAINNHER Internal Grinding Machine is carefully designed and manufactured.

• The machine base is manufactured from high quality cast iron (FC30), tempered and stress relieved for maximum stability of material.
• Great span between slideways provides firm support for wheel head assembly.
• Ruggedly constructed throunghout for outstanding rigidity and stabiliyt.
• Scientific rib reinforcement on the base structure for increased machine rigidity and deformation-free performance.

State-of-the-Art CNC Control

The CNC internal grinding machine is equipped with a FANUC (Oi-Mate TC) control. It employs macro (macro programs) operation interface combined with the use of an 8.4" colorful LCD screen, greatly upgrading production and providing outstanding grinding accuracy.

AUTOMATIC SENSING DEVICE

It can conduct fine surface grinding of interior radii and end faces, and the device monitors the wheel during operation, protecting it from overloading.

Automatic Grinding Cycle