Will a modern top-entry mixer gearbox last as long as the reliable platforms that have already served your treatment facility for years?
Maybe. But complete gearbox replacement is expensive — especially when your existing mixer gearboxes already get the job done.
Choose expert maintenance from Philadelphia Gear® instead.
We ensure your legacy mixer gearbox performs at full capacity — and at a fraction of the cost of a replacement.
Any brand. Any age. We service it all.
For over half a century, Philadelphia Gear has performed aftermarket repairs that maintain the reliability of legacy top-entry gearboxes — including Philadelphia Mixing Solutions — while reducing costs and lead times for wastewater treatment plant operators.
We understand the environment your mixers face: high-viscosity industrial loads, high torque demand, sludge layering, and the persistent need for reliability. Our team applies onsite expertise to keep your legacy configuration moving.
| • Sulzer | • Netzsch | • Flygt (Xylem) |
| • Philadelphia Mixing Solutions | • Patterson Pump | • Chemineer |
| • Rossi | • SPX FLOW | • Lightnin |
Lift station and crude oil tank mixers
Philadelphia Gear applies decades of wastewater facility experience not just to top-entry mixers, but also to drive systems in your lift stations — including Archimedes screw pumps — and crude oil tank mixers as well. From inspection and maintenance to emergency repair, our gearbox capabilities meet your needs.
| • Sulzer | • SPX FLOW | • Lightnin |
| • Netzsch | • KSB | • C.S. Unitec / C.S. Unitec AG |
| • Charles Ross & Son Company | • PAX | • Sulmara / EuroMix |
Built to withstand any mixer gearbox environment
Wastewater treatment plants are exceptionally punishing environments for gearbox equipment — but we come prepared.
High torque delivery, compact form factors
Philadelphia Gear can refurbish or retrofit mixer gearboxes in even the most constrained spaces to deliver the torque your mixers need, even in tight installs.
We ensure your mixers can power through viscosity and eliminate dead zones while keeping the gearbox footprint low — and maintenance accessible.
Exceptional durability to outlast corrosion
Sludge. Abrasion. Nonstop humidity. The elements.
Philadelphia Gear rebuilds gearboxes to withstand corrosive, washdown-prone environments so your mixers that run longer, at lower cost, without the risk of unexpected downtime associated with the ongoing stresses of your wastewater facility.
Wastewater treatment applications
Aeration
Sludge mixing
Chemical dosing
Lagoon treatment
Effluent and transfer pumping
Raw and recycled water transfer
Backed by an unmatched warranty
Every gearbox we repair or rebuild for your wastewater facility, whether for a top-entry mixer, lift station, or oil tank mixer, comes with a 3-year warranty on parts and labor.
And if you do require a new mixer gearbox, we can build to your specifications while backing our work with a 5-year warranty as well.
Keep your mixers running for less. Call Philadelphia Gear today.Extend the life of your legacy mixer gearboxes without sacrificing performance and reliability. The wastewater gearbox service experts at Philadelphia Gear are ready to help.
Contact us
Extend the life of your legacy mixer gearboxes without sacrificing performance and reliability. The wastewater gearbox service experts at Philadelphia Gear are ready to help.
