Low Shear, Hydrofoil (RTF4)

CPE’s RTF4 impeller is the best hydrofoil agitator in the world, providing the most efficient and reliable mixing performance, thanks to its unique design.

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How RTF4 Impeller Works

RTF4 impellers convert all available power to gentle and pure axial flow without creating turbulence at the impeller zone, resulting in thorough and effective blending and solid suspension in a short period of time. This can offer significant process and product improvement, including:

Shorter mix time, thus higher tank utilisation
Lower energy consumption, thus significant cost savings
Agitator running at lower power input, thus longer lasting agitator system
Gentle mixing flow, thus preserving product integrity (better quality product)

7 degree horizontal agitator at 100 seconds of mixing time

RTF4 Features

Increasing Width	Blades are slim at the tip where the speed is greatest and wide at the base where the speed is lowest. This gives a more uniform discharge velocity along the blade length, producing the most efficient pumping action
Profiled Edge	Both the leading and the trailing edges are profiled to minimise turbulence. This has the added benefit of reducing erosion caused by particle/blade collisions.
Blade Twist	Starting with a pronounced twist at the base, the blade gradually decreases its angle of attack towards the tip. This creates an even velocity profile while keeping the turbulence behind the impeller to a minimum.
The Arch	The blade arc is calculated to slice through the liquid at a shallow angle with the leading edge, while the sharply-cambered trailing edge directs powerful currents downwards

RTF impeller is available in mild and stainless steel and various specialty coatings to provide abrasion or chemical resistance. Polished to 180 grit for use in sanitary applications.

RTF4 Applications

Applications
RTF4 Hydrofoil	Liquid Blending Solid Suspension Heat Transfer Mass Transfer

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CPE Agitation and Mixing – RTF4 Technology

RTF4 Hydrofoil is Used in:

Agitator Systems

Agitator Mounting

Agitators can be top, side or bottom mounted.

Impeller Technology

CPE offers world’s best agitation technology. Our superior impeller design has the highest pumping to power ratio which can offer significant process improvement and cost savings.

Agitator Design

We custom design every agitator to ensure the best solution available is offered to our customers.

Agitator Retrofit & Process Optimisation

CPE specialises in agitation process analysis and optimisation. We offer process analysis and optimisation and retrofitting of old and underperforming agitators to enhance mixing performance and efficiency as well as improving final product quality.