
If you’ve ever faced the challenge of moving sludge cake, you know it’s not just another pumping job — it’s a test of endurance. Thick, sticky, and often unpredictable, sludge cake can bring ordinary pumps to their knees. Clogs become routine, downtime eats into productivity, and unpleasant odours become part of the daily grind.
Let’s be honest—if you’ve ever dealt with sludge cake, you know it’s not just “another day at the plant.”
It’s a battle. It’s thick, it’s sticky, it’s uncooperative.
Your regular pump starts groaning, clogging, and eventually waving the white flag.
Now, imagine a pump that loves the challenge. A pump that sees 45% dry solids and says, “Bring it on.” That’s exactly what Roto Cake Pumps were born to do.
How Roto Cake Pump Works – The Secret Behind the Sludge Slayer
If you think all pumps are built the same, think again. The Roto Cake Pump isn’t just a standard progressive cavity pump with a fancy name—it’s a specialist. Here’s what gives it the edge:
- Extra Large Feed Hopper – This oversized entry point means your sludge doesn’t have to fight its way in. Thick, dry solids? No problem. It can be made for 750, 1000, 1500 and 2000.
- Dedicated Compression Zone – Before the sludge even meets the rotor and stator, it gets compressed for smoother, uninterrupted flow.
- Large-Pitch Auger Screw – Like a conveyor belt inside your pump, this screw feeds material directly into the pumping elements, preventing bridging and blockages.
Every component is designed to work with sludge, not against it—so instead of constantly babysitting your pump, you can actually focus on running your operation.
Cake Pumps
Applications Where It Shines – Not Just a Pump, a Game-Changer
From municipal wastewater plants to industrial processing facilities, the Roto Cake Pump has become the go-to choice for anyone handling non-flowable sludge with up to 45% dry solids.
Some real-world wins:
- Wastewater Treatment Plants – Moving dewatered sludge from filter presses without choking the system.
- MSW (Municipal Solid Waste) – Moving high-viscosity waste and abrasive media without clogging the system.
- Biogas Facilities – Feeding digester systems with high solids material while keeping energy use low.
- Industrial Sludge Handling – Transporting thick by-products without costly manual intervention.
The Payoff – Numbers Don’t Lie
When we say this pump delivers, we mean it.
- Capacity: Up to 50 m³/h
- Pressure: Up to 24 bar
- Viscosity: Up to 3Million CST
- Bonus: Odour-controlled operation for a cleaner, regulation-friendly workplace
These aren’t just impressive on paper—they translate into reduced downtime, lower maintenance costs, and happier teams.
Why It Matters – Your Plant, Your People, Your Peace of Mind
Think about the last time your sludge handling system failed mid-operation. The scramble, the smell, the hours lost.
Now imagine the opposite—smooth, predictable pumping day after day. That’s not just better for output—it’s better for your people and your bottom line.
Ready to handle the Toughest Sludge?
You don’t need to fight sludge cakes anymore. You need a pump that makes it behave. The Roto Cake Pump is ready for the challenge—are you?
📞 Get in touch today to see it in action and discover how it can transform your sludge handling process.
Email us at: contact@rotopumps.com