For several years, high-quality rotary unions have been an integral component of advanced slurry spreaders designed for drag hose systems. These rotary unions, developed and manufactured in-house, are essential for seamless nutrient delivery. Sold independently under the brand Alrena rotary joints, these components stand out for their exceptional stability and strength compared to similar products in the market. Available in three sizes, namely 5", 4", and 3", these robustly constructed rotary unions feature built-in roller bearings, a specialized design for attaching coupling components, and are made from hardened steel.
Type | A | B | C | D | E |
---|---|---|---|---|---|
3" | 75 | 160 | 130 | BSP G3" thread | M10x1.5 |
4" | 100 | 177 | 152 | BSP G4" thread | M10x1.5 |
5" | 125 | 210 | 180 | BSP G5" thread | M10x1.5 |
Alrena Rotary Joints are used for the connection of the slurry supply.
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Alrena Rotary Joints are available for 3", 4" and 5" hoses.
They rotate on heavy roller bearings.
The Rotary Joints are developed and produced in-house.
Yes, the Rotary Joints have a self-developed coupling system that locks itself as soon as traction force is applied to the Rotary Joints.
The Rotary Joints are built very robust and strong with hardened steel and roller bearings are used. As a result, wear is minimal and there are no weak points. The exact service life depends on many external factors and can therefore not be determined in general.
For a single delivery of an Alrena rotary joint, the standard delivery time is 1-2 working weeks, depending on the availability of the material. When built into a Bomech drag foot injector, this will not increase the delivery time of the injector. Current delivery times always on request.
The price of an Alrena rotary joint is always on request.