Roller flour mill Arrakis

cereal

Product overview
The Arrakis MRRK is a high-throughput roller mill designed for consistent grinding of the same commodity in milling lines. Available in four-roller and eight-roller configurations, it combines a robust cast frame and patented grinding gap adjustment to deliver stable long-term performance. Bühler engineering focuses on easy installation, reliable operation and simplified maintenance.

Key benefits

• Fast and simple installation — Built to the MDDK footprint for one-to-one replacement; feed-roller connection reduces the number of installed drive components.
• Stable continuous operation — Proven load cell sensor ensures uniform product flow across the grinding surface; latest-generation scrapers reduce manual intervention.
• Long-term mechanical stability — Robust cast frame with load-carrying structure absorbs vibration; patented grinding gap adjustment maintains rigidity over time.

Highlight features

• Easy cleaning and maintenance — Quick-release feed module and wide maintenance flap enable rapid emptying and access; automatic feed gate closure prevents trickling during idle periods.
• Advanced scraping system — Synthetic, latest-generation scrapers and self-adjusting knife scrapers eliminate accumulation and maintain continuous clean rolls.
• Integrated control options — Intuitive machine interface; optional touchscreen control unit and secure remote access allow monitoring and control from mobile devices.

Other features & safety

• Inspection and airflow — Perforated side panels allow safe visual inspection while running and provide optimized airflow.
• Operator and machine protection — Feeding unit safety grids protect personnel; foreign object protection prevents roller damage.
• Stable grinding gap regulation — Patented adjustment mechanism ensures consistent grinding performance over long operating periods.

Process chain role
Designed for the milling step within an integrated process chain (raw material cleaning and conditioning, milling, storage/blending, bagging/load-out). Arrakis targets high-throughput, repeatable grinding of the same commodity in milling lines, producing flours, bran, germ and semolina as required.

Optional automation & control systems

• Mercury MES (next generation mill automation) — Web-based OS with graphical dashboards, IoT connectivity and integration of sales, raw material, energy and logistics data accessible on phone, tablet or PC.
• Pluto PCS — Reliable, user-friendly process control system for straightforward process automation with web-based access.

Technical specifications

• Product name: Arrakis
• Model designation: MRRK (four-roller and eight-roller configurations)
• Application: High-throughput roller mill for grinding the same commodity (milling section)
• Construction: Robust cast frame with load-carrying structure for high vibration absorption
• Grinding gap: Patented grinding gap adjustment for long-term rigidity and stability
• Feed design: Quick-release feed module; wide maintenance flap; automatic feed gate closure
• Scrapers: Latest-generation synthetic scrapers and self-adjusting knife scrapers
• Sensors & control: Proven load cell sensor; optional touchscreen control unit; secure remote access
• Safety: Perforated side panels; feeding unit safety grids; foreign object protection
• Installation: Built to MDDK footprint for one-to-one replacement; reduced installed drive components