Kimball Equipment Upgrades PEP Highfrequency Screening Technology

Kimball Equipment has updated its PEP high-frequency screening technology with an emphasis on fine-material separation, operational control and maintenance efficiency. The system is positioned for pre-screening and post-screening duties in material-processing operations, where removing fines can influence final product quality and throughput.

Core technology and application value

Fine-material removal is a critical step in material-processing operations, and Kimball Equipment's PEP system uses high-intensity vibration to address that stage. The equipment is designed for pre-screening and post-screening applications, reducing fine powder content in the material stream and supporting higher product quality and processing capacity, the company said.

The core of the design is a 3,600 RPM excitation force applied directly to the screen mesh. That high-frequency, high-intensity motion is intended to promote rapid stratification and passage of material through the screen, a mechanism the manufacturer describes as delivering industry-leading fines-removal capability. A variable frequency drive, or VFD, allows operators to adjust vibration frequency to suit material characteristics and operating conditions.

Engineering for operational efficiency

Beyond screening performance, the PEP design addresses on-site maintenance. Conventional screen changes can be time-consuming, and the system's tool-free ratchet mechanism is intended to shorten downtime by enabling faster tensioning and release of the screen. That design choice supports more continuous operation and higher equipment availability.

The equipment is also engineered to deliver high fines-removal capacity in high-volume environments by optimizing the vibration transmission path. According to the specifications, it can help operations raise overall capacity without requiring additional footprint. Fine control over vibration speed lets operators respond to changes in moisture and particle-size distribution in real time, helping maintain separation performance.

Adjusting to material conditions

Because material conditions can vary during production, the VFD control is central to the system's operating flexibility. Operators can tune vibration frequency and intensity to match different feed characteristics, including wet or sticky material, while monitoring separation results. The manufacturer notes that specific performance with wet material should be validated through on-site testing based on moisture content and viscosity.