📋 Applications
- Shredding and discharging sewage containing solid particles, fibers, organic compounds, etc
- Engineering construction sites, coal mines, metallurgy, printing & dyeing, textile
- Clean water irrigation
⚙️ Operating Conditions
- The operating temperature: 0‑40℃
- The temperature of pumped medium: ＜ +40℃
- The pH value of pumped medium: 6.5‑8.5
- Max. density of medium: 1.2 × 10kg/m³
- Immersion depth: 0.5m‑5m
✨ Features
- Corrosion‑resistant S/S cutter, avoiding jamming caused by rusting
- Screw impeller, which is wear‑resistant, anti‑clogging, and anti‑winding
- Excellent cable sealing structure to avoid burning‑out caused by leakage
- Two single mechanical seals are adopted to achieve good sealing effect, more reliable and durable than skeleton oil seal
| S/N | Model | Rated flow (m³/h) | Rated head (m) | Rated power (kW) | Rated voltage (V) | Piping diameter (mm/in) |
|---|---|---|---|---|---|---|
| 1 | 50WQDK12‑10‑1.1 | 12 | 10 | 1.1 | 220 | 50/2 |
| 2 | 50WQK12‑10‑1.1 | 12 | 10 | 1.1 | 380 | |
| 3 | 50WQDK15‑13‑1.5 | 15 | 13 | 1.5 | 220 | 50/2 |
| 4 | 50WQK15‑13‑1.5 | 15 | 13 | 380 | ||
| 5 | 65WQDK20‑10‑1.5 | 20 | 10 | 1.5 | 220 | 65/2.5 |
| 6 | 65WQK20‑10‑1.5 | 20 | 10 | 380 | ||
| 7 | 50WQK10‑20‑2.2 | 10 | 20 | 2.2 | 380 | 50/2 |
| 8 | 65WQK25‑15‑2.2 | 25 | 15 | 65/2.5 | ||
| 9 | 80WQK35‑10‑2.2 | 35 | 10 | 80/3 | ||
| 10 | 50WQK30‑15‑3 | 30 | 15 | 3 | 50/2 | |
| 11 | 65WQK35‑15‑3 | 35 | 65/2.5 | |||
| 12 | 80WQK45‑10‑3 | 45 | 10 | 80/3 | ||
| 13 | 50WQK35‑20‑4 | 35 | 20 | 4 | 50/2 | |
| 14 | 65WK45‑17‑4 | 45 | 17 | 65/2.5 | ||
| 15 | 80WQK75‑10‑4 | 75 | 10 | 80/3 | ||
| 16 | 100WQK85‑8‑4 | 85 | 8 | 100/4 | ||
| 17 | 65WQK50‑20‑5.5 | 50 | 20 | 5.5 | 65/2.5 | |
| 18 | 80WQK65‑15‑55 | 65 | 15 | 80/3 | ||
| 19 | 100WQK90‑10‑5.5 | 90 | 10 | 100/4 | ||
| 20 | 65WQK70‑20‑7.5 | 70 | 20 | 7.5 | 65/2.5 | |
| 21 | 80WQK100‑15‑7.5 | 100 | 15 | 80/3 | ||
| 22 | 100WQK130‑10‑7.5 | 130 | 10 | 100/4 | ||
| 23 | 150WQK100‑10‑7.5 | 100 | 10 | 150/6 |
Product Features
The sewage cutting pump is a submersible sewage pump specially designed for wastewater containing impurities, fibers and sludge. Compared with ordinary sewage pumps, its outstanding cutting‑grinding function effectively solves common problems such as winding, clogging and high failure rate of conventional pumps.
- Powerful cutting & anti‑clogging performance Equipped with heavy‑duty stainless steel cutting cutter, it can shred plastic bags, cloth strips, hair, ropes, plant fibers and soft sundries, fundamentally preventing pump jamming and ensuring smooth water discharge.
- High wear‑resistance for long service life Adopts anti‑winding screw‑type impeller with wide unobstructed flow‑passage. It delivers excellent wear resistance for long‑term pumping of sewage mixed with fine sediment and particles, resisting abrasion and sediment accumulation.
- Reliable sealing performance Double mechanical seals are fitted instead of common skeleton oil seals. It provides superior water‑penetration resistance, preventing sewage from entering the motor and avoiding motor burnout and electric leakage.
- High safety with waterproof insulation Special sealing structure for power cable entry stops water ingress while submerged. Good overall insulation guarantees stable and safe underwater operation.
- Stable continuous operation capability Submerged water‑cooled motor design keeps low temperature rise. It supports long‑duration continuous running with low noise and slight vibration.
- Simple installation & low maintenance cost Full submersible structure requires no dedicated pump house. It supports vertical installation or guide‑rail coupling installation, occupying little space with easy field assembly and reduced subsequent maintenance workload.
Application Scenarios
This cutting pump is mainly used for sewage discharge carrying sundries, fibers and sludge.
- Domestic sewage disposal Basement & garage dewatering, residential sewage and septic tank lifting. Handles wastewater mixed with paper scraps, fabric scraps, hair and domestic debris.
- Municipal & construction drainage Foundation pit drainage for construction sites, rainwater sump, underground pipe network and civil air‑defense works. Suitable for wastewater mixed with sediment, fallen leaves and miscellaneous debris.
- Industrial wastewater treatment Wastewater transfer for printing & dyeing mills, textile mills, food plants, livestock farms and slaughterhouses. Deals with wastewater rich in fibers, hair, organic residues and sediments.
- Mining & metallurgy industry Dewatering for mine tunnels and processing wastewater transportation, pumping water containing fine mineral particles and slag.
- Agricultural irrigation & flood emergency drainage Farmland waterlogging drainage, fish pond water exchange, auxiliary river desilting and flood emergency pumping. Works for clean water and lightly polluted sludge‑mixed water.
Operating Environment Requirements
- Pumped medium temperature: 0℃‑40℃
- PH value of pumped liquid: 6.5‑8.5 (neutral water quality)
- Maximum medium density: 1.2×10³kg/m³
- Submergence depth: 0.5m‑5m, do not exceed rated immersion depth for long periods
- Dry‑running without water is strictly forbidden
Routine Maintenance
- Clear foreign objects on pump regularly Inspect cutting cutter and impeller every 1‑3 months. Remove tangled fibers, residues and sediment to keep cutting and water‑passage unobstructed.
- Check power cable & sealing conditions Regularly examine cables for aging, cracking and damage. Verify cable joints to prevent electric leakage and short‑circuit faults.
- Inspect mechanical seal assembly Replace worn mechanical seals in time if water seepage, reduced flow or abnormal noise occurs after long‑time service.
- Clean pump housing Wash off sludge and dirt accumulated on pump casing for good heat dissipation, to avoid overheat shutdown.
- Storage for long‑term idle period Rinse pump thoroughly, dry it and store in cool dry ventilated location. Do not leave the pump sitting submerged in sewage when out‑of‑service, to prevent rusting and seizure.
Precautions for Operation
- Never run the pump dry The pump must be fully immersed during operation. Dry‑running will rapidly damage sealing components and burn out the motor.
- Avoid hard bulky materials Although fitted with cutting mechanism, stones, metal blocks, concrete chunks and other hard objects shall not be pumped, as they will damage cutter and impeller.
- Power‑supply check before startup Confirm matching supply voltage and proper earthing. Prevent motor burnout caused by unstable voltage or phase loss.
- Avoid frequent start‑stop cycles Allow minimum 3‑5‑minute interval between successive start‑stop operations, to protect motor from inrush‑current damage.
- Elevate pump in silty‑muddy bottom Mount the pump on support base if working on heavy silt ground. Prevent heavy sediment suction leading to clogging and accelerated impeller wear.
- Power‑off inspection upon abnormal conditions Cut off power supply immediately if abnormal noise, heavy vibration, no water output, tripping or leakage appears. Do not keep running a faulty pump.