Slope Screens

The McLanahan Slope Screen is a static liquid-solid-separation solution for dairies and other agricultural operations handling dilute manure streams. Similar to a rotary drum separator but capable of higher material processing rates, the Slope Screen provides reliable separation without moving parts, reducing maintenance requirements while improving operational efficiency. Ideal for dairies with dilute manure streams, including sand-bedded dairies, manure solids dairies and dairies using anaerobic digesters, the Slope Screen can be incorporated into both new and existing manure management systems. The McLanahan Slope Screen measures 8’ wide x 11’ long.

How Slope Screens Work

Slope Screens separate solids from dilute manure streams using gravity and wedge wire screen media. Manure is pumped to the feed box at the top of the screen, where it is distributed across the screen surface and allowed to flow downward. As the material travels over the screen media, liquid passes through the screen openings and exits the unit through a discharge flange, while solids are retained on the surface and conveyed to a collection area at the bottom of the screen. The recovered solids are typically still fairly wet in consistency and may be further dewatered with an optional Roll Press. The Slope Screen can be utilized for primary separation in manure systems or tertiary separation in sand recovery applications.

Why McLanahan Slope Screens

McLanahan designed the Slope Screen to provide dairy producers with a simple, dependable manure separation solution capable of handling high flow rates with minimal maintenance. Constructed of stainless steel and featuring wedge wire screen panels, the Slope Screen combines long equipment life with easy serviceability.

Unlike mechanical manure separators that rely on rotating or vibrating components, the Slope Screen utilizes gravity and screen media to separate solids from liquid streams. With no moving parts, operators benefit from reduced maintenance requirements and lower operating costs. 

The modular design allows individual screen sections to be removed, cleaned or replaced with ease. Integrated access to both sides of the screen panels and T-handle locking mechanisms further simplify maintenance while improving operator safety. 

Whether installed as a primary separator in manure systems or as a tertiary separator in sand recovery systems, the McLanahan Slope Screen offers producers a flexible, user-friendly solution that can be incorporated into new installations or retrofit existing systems.