CHIOR SE: SAVECO Submersible Agitators for Efficient Slurry and Digestate Mixing

Efficient mixing is a critical factor in livestock farming and biogas production.

Efficient mixing is a critical factor in livestock farming and biogas production. When slurry or digestate is not kept homogeneous, stratification, sediment build-up and surface crust formation can compromise pumping, transfer and downstream treatment, reducing overall plant efficiency and increasing operating costs.

Developed by SAVECO, a WAMGROUP division, CHIOR SE submersible agitators are engineered to deliver reliable, energy-efficient mixing in demanding agricultural and biogas applications. Designed for livestock slurry storage tanks and anaerobic digesters, they help maintain homogeneous material, even with high solids content, supporting stable and continuous operation.

Mixing Engineered for Process Stability
In slurry and digestate management, effective mixing is about much more than moving liquid. It is essential to keep solids uniformly suspended, minimise dead zones, prevent sedimentation and avoid surface crust formation, ensuring consistent material characteristics throughout the tank.

CHIOR SE achieves this through a high-efficiency three-blade stainless-steel propeller available in different geometries and diameters to suit specific tank layouts and media characteristics. This allows each installation to be optimised for maximum hydraulic performance while minimising energy consumption.

The result is a stable, homogeneous substrate that supports reliable biogas production and simplifies slurry handling on livestock farms, even under demanding operating conditions.

Three Configurations for Different Mixing Requirements
Every installation presents different mixing challenges. For this reason, the CHIOR SE range is available in three operating configurations, each designed for a specific application:
• LE – 140 rpm: optimised for primary mixing of large volumes.
• ST – 280 rpm: a versatile solution suitable for a wide range of applications.
• VE – 355 rpm: specifically developed to break surface crusts and address severe stratification.

This approach enables users to select the most appropriate agitator for their process, avoiding both under-sizing and unnecessary installed power while achieving optimum mixing efficiency.

High Efficiency with Reliable Performance
Energy efficiency is measured not only by motor performance but also by the ability to maintain consistent mixing while reducing corrective interventions and unnecessary operating time.

CHIOR SE is equipped with IE3 Premium Efficiency submersible motors that combine low energy consumption with high mixing performance. The range covers power ratings from 2.2 to 22 kW, providing solutions for tanks of different sizes and process requirements.

For the 11–22 kW LE models, the range delivers flow rates of up to 16,000 m³/h (measured in clear water at 20 °C). Actual performance depends on factors including density, viscosity and dry matter content.

Built for Demanding Operating Conditions
Agricultural and biogas environments place heavy demands on submersible equipment. Continuous immersion, abrasive solids, aggressive media and variable operating loads all require robust engineering.

CHIOR SE is designed to ensure long-term reliability through a combination of high-quality components, including:
• IP68 motor protection;
• Class F insulation;
• Integrated thermal protection;
• Cemented carbide mechanical seals;
• Self-lubricating radial roller bearings;
• NBR O-rings;
• EM7 rubber-sheathed power cable with stainless-steel cable gland;
• Planetary gearbox operating in an oil bath.

Together, these features provide dependable operation where downtime can significantly affect productivity and operating costs.

Simplified Installation and Maintenance
Installation flexibility is another key advantage of the CHIOR SE range. Each agitator is mounted on a vertical guide pipe using an adjustable stainless-steel support bracket, allowing quick installation and accurate positioning in both new and retrofit projects.

The modular design also simplifies maintenance and spare parts management. For models from 11 to 22 kW, an upgraded support bracket further facilitates installation and handling of the larger units.

ATEX Version for Hazardous Areas
To meet the requirements of installations where potentially explosive atmospheres may occur, CHIOR SE is also available in an ATEX-certified version for the 11–22 kW range, ensuring compliance with applicable safety standards.

A Reliable Solution for Slurry and Digestate Management
CHIOR SE is more than a submersible agitator—it is a complete mixing solution engineered to improve the stability, efficiency and reliability of slurry and digestate management.

Combining high-efficiency stainless-steel propeller technology, IE3 motors, dedicated LE/ST/VE configurations, robust construction and straightforward installation, the range offers a practical and dependable solution for livestock farms and biogas plants alike.

By maintaining homogeneous material under real operating conditions, CHIOR SE helps operators optimise process performance, reduce maintenance requirements and support continuous, efficient plant operation.