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Improved Product and Mature Technology – Bühler AIRTRONIC Roller Mill

Proven AIRTRONIC Performance:

• Pneumatic servo feeding

• Horizontally arranged grinding rollers

• Self-supporting roller stress group

• Suction air at roller gap assists roller rotation

Pneumatic Servo Feeder:

• A pulse generator automatically adjusts the feed gate at the material inlet.

• The patented servo control system enhances pulse signals while simultaneously engaging and disengaging the grinding rollers and feed rollers.

Self-Stressed Roller Group:

• The roller assembly is mounted on a base frame, supported by shock absorbers, and secured by an eccentric rod driven by a pneumatic cylinder.

• During grinding, the self-stressed roller group absorbs the grinding pressure, ensuring that no force is transmitted to the roller mill's outer frame.

Automatic Feed Roller Speed Control for MDDK Roller Mills:

• Simple mechanical and pneumatic design

• Infinitely variable speed adjustment with a 1:10 ratio

• Power is directly transmitted from the grinding rollers to the feed roller without requiring an additional drive

• Fully automated operation, even at maximum blending ratio, during unattended operation

Electronic Feed Roller Speed Control for MDDK and MDDL Roller Mills:

• Simple mechanical-pneumatic design

• Infinitely variable speed adjustment with a 1:10 ratio

• Fully automated operation, even at maximum blending ratio, during unattended operation

• Allows discharge of remaining material from the feeding hopper when grinding rollers are disengaged

• Robust three-phase AC motor control

• Non-contact sensors provide isolated signals for roller engagement/disengagement and feed roller speed control