Description
The Submersible Sewage Pump with Cutting Device is engineered for wastewater with high fiber and solid content.
- ✅ Built-in Chopper System: Shreds long fibers, plastic bags, ropes & straw; passes solids up to 60% of discharge diameter.
- ✅ Full Head Operation: Optimized hydraulic design prevents motor overload across the entire performance curve.
- ✅ Heavy-Duty Seals: Tungsten carbide double mechanical seal + framework oil seal combo for extended service life.
- ✅ Mill-Factory Direct: 20+ years Zhejiang manufacturer. 100% pressure tested. OEM/ODM supported.
Key Features & Benefits
- Superior Chopping Performance: High-hardness alloy cutter (≥HRC58) effectively grinds debris, preventing blockages common in standard sewage pumps.
- Excellent Passing Ability: Capable of passing solids up to approximately 60% of the discharge diameter, meeting international standards for chopper pumps.
- Thermal & Overload Safety: Designed for full-head operation. The motor power curve is perfectly matched to the hydraulics, ensuring no overloading even at low heads.
- Reliable Dynamic Seal: Equipped with high-quality tungsten carbide double mechanical seals and a framework oil seal. The oil chamber provides lubrication and cooling, isolating the motor from abrasive media (pH 5-9).
- Manufacturing Expertise: As a Zhejiang-based mill-factory, we control the process from impeller casting to final assembly. Each unit undergoes dynamic balancing and a 100% pressure test.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Submersible Sewage Pump with Cutting Device |
| Media Temperature | ≤ +40°C |
| Media pH Range | 5 – 9 |
| Motor Submersion Limit | During prolonged operation, exposure must not exceed 1/2 of the motor height. |
| Max Media Density | ≤ 1100 kg/m³ (Note: Corrected from original 500kg/dm³ spec) |
| Sealing System | Tungsten Carbide Double Mechanical Seal + Framework Oil Seal |
| Protection / Insulation | IP68 / Class F (Available on request) |
| Voltage / Frequency | 220V/380V 50Hz (60Hz Customizable) |
* Available Discharge Sizes: DN50, DN80, DN100, DN150. Power range: 1.5kW – 7.5kW. Contact us for specific flow-head curves and datasheets.
Application Scenarios
- 🌾 Farmland Irrigation: Handling return flow containing straw, weeds, and sediment.
- 🏗️ Construction Site Dewatering: Pumping slurry mixed with fibers and small debris.
- 🏭 Industrial & Mining Effluent: Removing wash-down water containing chips and organic waste.
- ♻️ Municipal & Domestic Sewage: Ideal for lift stations and septic tank systems requiring pre-grinding.
Why Choose Our Factory?
We are not a trading company. With over 20 years of experience in Zhejiang, Jingong China, we specialize in a full range of pumps including Submersible Pumps, Surface Pumps, Booster Pumps, Solar Pumps, and Gasoline/Diesel Pumps. Our rigorous QC process includes: 1. Impeller Dynamic Balancing, 2. Air-pressure Leak Test on Seal Chambers, and 3. 100% Full-Unit Pressure Testing. We support OEM branding and maintain spare parts inventory for overseas clients.
FAQ
Q: What does “60% of discharge diameter” mean in practice?
A: For a DN80 (3-inch) pump, it means the pump can reliably pass spherical solids up to 48mm. Fibrous materials like rope or rags are shredded by the cutter, allowing them to pass easily.
Q: Can this pump run dry?
A: While it has a robust sealing system, it is a water-cooled motor. It can run for short periods with the motor partially exposed, but during continuous operation, the water level must cover at least half of the motor housing to ensure adequate cooling.
Request a Quote or Datasheet
Unsure about the correct discharge size or head requirements? Send us your application details (media description, lift height, required flow), and our engineering team will provide a sizing proposal within 24 hours.
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