Rollerpress ROP

Our roller design offers a durable and efficient solution tailored for high-performance operation. The unique composition of the rollers ensures long-lasting wear resistance, with specialized layers designed to enhance protection, hardness, and overall performance. Maintenance is minimized, as the design allows for in-place repairs and reduced downtime, ensuring smooth operation. The robust shaft design further enhances durability, providing the necessary strength and protection against wear. This advanced engineering ensures reliability and cost-effectiveness in demanding environments.

Cheek plates close the grinding area between the rollers and are coated with a hardness layer to increase lifespan. The pressure unit allows for flexible but constant pressure, accommodating roller movements and misalignments. The design facilitates easy vertical removal for maintenance without disassembling additional covers, ensuring efficient upkeep and longevity.

Christian Pfeiffer ROP models (≥ ROP-9-14) use cylindrical roller bearings with housings designed to compensate for misalignment. Axial bearings on the non-drive side ensure proper alignment. Smaller ROP models (< ROP-9-14) feature a more economical design with self-aligning bearings due to lower forces and available space.

Christian Pfeiffer has introduced a new axial guidance design, placing the rotary point centrally at the top and bottom of the bearing housings, protected between the main machine beams. The system features chrome guide rails and Teflon sliding surfaces, ensuring smooth movement even with small adjustments. Designed for easy maintenance and quick operation stops, it eliminates the need for complex alignment, offering a significant advantage over other market models.

Christian Pfeiffer has developed a new, innovative system using two-way cylinders that revolutionizes machine control by allowing precise adjustments based on position and force. This advancement significantly enhances efficiency and control. However, the traditional system with nitrogen accumulators remains available, providing flexibility depending on the application.
In the standard setup, the grinding force is applied via a moveable roller powered by a hydro-pneumatic system with hydraulic cylinders and nitrogen accumulators. The system automatically adjusts pressure based on material feed and gap changes. Maintenance is simplified with foldable beams for easy access to cylinder seals, and the design compensates for small inclinations, ensuring proper alignment during operation.

Christian Pfeiffer's frame design focuses on reducing weight and enhancing user-friendliness. Open windows in the frame allow for quick checks of critical maintenance areas. Foundation elements enable easy connection with anchor bolts, eliminating the need for additional base frames.

The drive system is designed for high service factors to handle unexpected peaks. A shrink disc with a manual coupling is mounted on the roller shaft, offering a maintenance-free solution, with an optional hydraulic coupling for easier installation.
Planetary gearboxes are bolted to the shaft and supported by torque arms to absorb moments from the motors, each with a dedicated cooling system. A safety coupling protects against overload, while a Cardan shaft allows movement without affecting the motor.
For safety, a standstill brake ensures rollers remain stationary unless the motor is locked or powered down.

The inlet on the Christian Pfeiffer ROP serves multiple functions. It directs collected material onto the rollers using a pair of slide gates, allowing operators to regulate the flow rate and fine-tune the process during operation. A second pair of slides below controls material feed directly into the grinding area.
Additionally, the feed chute housing includes an integrated exhaust system to discharge grinding dust, preventing process variations caused by excess fine material in the intake zone.

The enclosed grinding area prevents dust and material from escaping. The housing absorbs roller movements and includes large doors for easy wear checks without disassembly. Sealed doors and windows prevent dust from accelerating wear on the guiding system.

A designated space next to the inlet chute allows for the installation of a welding apparatus for on-machine re-coating. This tool ensures an optimal welding angle, enabling effective maintenance and extending the roller surface's lifespan.