Building Trust Through Flexibility – A US Wastewater Success Story

We were approached by a US-based client in the wastewater treatment industry. They were looking to replace their existing units and also needed equipment for new plants they were building. Their application involved treating high‑grease and septic waste as part of an industrial pretreatment process.
Their main requirement was an Internally Fed Rotary Drum Screen that could handle a flow rate of 500 GPM (about 113.6 m³/h) with a filtration accuracy of 1mm, all in SS304 construction.

Our Initial Suggestion

Based on their needs, we recommended our Model 1200 Internally Fed Rotary Drum Screen (1200×4500, SS304). However, we pointed out a potential risk: the high grease content in the wastewater could clog the screen openings over time. To reduce this risk, we suggested a larger model than initially planned, and we explained that our filter screen uses a punched plate surface with a capture rate of up to 98%—which gives excellent solid‑liquid separation even with sticky materials.

Adapting to Changing Needs

Over the following weeks, the client went through several internal discussions and came back with different flow rates and accuracy targets. We listened carefully and adjusted our recommendations accordingly—without pushing any fixed solution. Each time, we provided clear performance data so they could make informed decisions.
Eventually, they settled on a larger configuration: the Model 1500×6000, which comfortably delivers 2,000 GPM. They also asked us to change the drive system to a gear‑driven type and to upgrade the spray nozzle material. We confirmed that these modifications were no problem for us—and we delivered exactly what they asked for.

The First Order – and a Repeat Order

The client placed an initial order for 8 units of the Internally Fed Rotary Drum Screen. After receiving the equipment for a short time, they were satisfied with the performance that they came back and ordered another 2 identical units without hesitation.
That repeat order spoke louder than any words. It showed that our screen met their flow requirements, handled the grease without excessive clogging, and ran reliably—all while being easy to adapt to their evolving specifications.

What We Learned

This project reminded us that listening is just as important as engineering. By staying flexible, respecting the client’s internal decision‑making process, and offering honest advice about potential challenges (like grease clogging), we earned their trust. The fact that they doubled their order shortly after the first delivery is the best confirmation we could ask for.
We’re proud to support their growing operations, and we look forward to more collaborations in the US wastewater market.