Location
Hungary
Industry
Mining
Cyclone feed pressure fully restored
The spare parts brought the pump back to its original discharge pressure, improving separation efficiency.
Longer wear life with natural rubber & Hi‑Seal expeller
Wear‑resistant materials extended service life and reduced long‑term maintenance costs.
One‑shift turnaround with a complete spare‑parts kit
All required parts were delivered together, enabling a fast and predictable change‑out.
Challenge
In a sand and gravel processing plant near the tri‑border region of Hungary, Austria and Slovenia, a rubber‑lined Warman® 8/6 AH pump fed a hydrocyclone operating in continuous duty. Over time, the abrasive sand‑slurry caused severe wear on the
pump’s wet‑end components, including the rubber impeller, throatbush and volute liner, as well as the expeller‑based sealing system.
As wear progressed, the pump gradually lost discharge pressure. This drop-in feed pressure directly impacted the cyclone’s ability to make a clean separation, reducing product recovery efficiency and increasing recirculation losses.
Solution
To restore the cyclone feed performance, Vaikon supplied a complete set of dimensionally interchangeable Schegler wet‑end parts, designed for compatibility with the customer’s Warman® 8/6 AH pump. We selected natural rubber for this application because its elasticity helps reduce erosive wear in fine‑to‑medium sand. It also performs well when particle shapes are rounded to moderately sharp, which fits this
duty.
Because the application required stable pressure at varying suction conditions, the
sealing system was upgraded to a Hi‑Seal expeller. Unlike a standard expeller, the
Hi‑Seal version has a larger diameter that generates higher counter‑pressure in the
expeller chamber. This version provides improved leakage control under higher or
fluctuating suction conditions, which are common in cyclone feed systems.
All parts (impeller, throatbush, volute liner and expeller components) were delivered as a complete set of individual spares, ensuring that the customer had everything needed for a smooth and predictable change‑out during their planned maintenance shutdown.
Result
Once installed, the pump recovered its original discharge pressure, bringing the
hydrocyclone back to full separation efficiency. The timely replacement of worn
components, combined with the use of wear‑resistant materials, lowers long‑term
maintenance costs and extends the pump’s service life. Thanks to the full kit of spare parts and fast delivery from Vaikon’s warehouse, the entire intervention was completed within a single shift, a logistical advantage that enables
quick support across Europe and beyond.