Sulzer Dewatering Sludge Pump

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Sulzer’s complete range of submersible dewatering pumps meets the most challenging applications in various industries. With over 50 years of technical expertise and real-world experience, these pumps are your best insurance against unexpected downtime.


Sulzer’s J and XJ submersible drainage pumps are portable and sturdy. They can move dirty water with small abrasives with ease. They are preferred for dewatering construction sites, mines, quarries, and tunneling projects

Design Benefits

  • Wear-resistant white cast iron impellers
  • Lightweight and slim design
  • Built-in contactor for easy and fail-proof start and restart


Model (50 Hz) Capacity (l/s) Pressure Head (m) Weight
JS 4, JS 7, JS 8 5 16 JS 7 - 16.8 kg
JS 8 - 18.3 kg
JS 12 7.5 13 20 kg (W), 19 kg (D)
JS 15 7.5 16 20 kg
XJS 25 16 18 39 kg
XJS 40 20 24 41 kg
XJS 50 25 28 59 kg
XJS 80 29 35 64 kg
XJS 110 31 36 80 kg

*See performance curves on brochure


  1. XJ 900
  2. J 205 – J 604
  3. J 4 – J 7, J 12 – J 15, JC 34, XJ 25 – XJ 110, XJC 50 – XJC 110
  4. JS 4 – JS 8, JS 12 – JS 15, XJS 25 – XJS 110


Talk to Experts
Abaque Peristaltic Hose Pump HD100 model

JS 4, JS 7, JS 8

Abaque Peristaltic Hose Pump HD100 model

JS 12

Abaque Peristaltic Hose Pump HD100 model

JS 15

Abaque Peristaltic Hose Pump HD100 model

XJS 25

Abaque Peristaltic Hose Pump HD100 model

XJS 40

Abaque Peristaltic Hose Pump HD100 model

XJS 50

Abaque Peristaltic Hose Pump HD100 model

XJS 80

Abaque Peristaltic Hose Pump HD100 model

XJS 110

  1. Instead of a built-in contactor, an optional AquaTronic unit can be used.
  2. A free-flow vortex impeller and pump volute make the pump ideal for pumping solids.
  3. Both the impeller and volute are made from heavy-duty ductile iron for maximum durability.
  4. The top cover and motor housing are made of lightweight aluminum.
  5. Due to the modular design, the same parts can be used for different pumps.
  6. High-efficiency motor and hydraulics with lowfriction bearings to reduce power losses.


  • Correction of motor rotation if phases are improperly connected
  • Run mode (no panel needed)
  • Integrated start equipment (direct or soft start depending on pump model)
  • Motor protection against high temperature, high amperage and missing phase
  • Anti-clog function

If the optional level sensor is installed the pump will also have the following:

  • Precise level control
  • Protection against dry running
  • Energy save mode (energy is saved through stopping at dry run and starting by level sensor)


Talk to Experts
alfa laval CENTRIFUGAL
Capacities of up to 500 m3/h | 1.9 MPaDrainage Centre-Line Pumps
Perfect for use in cramped installation areas, it can handle slightly abrasive water.
rotary lobeSubmersible Sludge Pumps
Well-suited for pumping water that is contaminated with solids or other impurities.
twin screw seriesSubmersible Drainage Pumps
Suitable for pumping both water and contaminated water containing small amounts of abrasive particles.


Sulzer dewatering pumps are submersible centrifugal in type and are used to remove water collected in construction sites, tunnels, and mines. They suck the dirty water – which is circulated in the casing by the impeller – and later discharged to a wellpoint system or open sump. Depending on the type of water, a dewatering pump may use strainers to remove abrasives from the groundwater before being processed. A dewatering sludge pump, on the other hand, is used for moving thick, viscous fluids.

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