Main benefits
  • Lightweight, robust design for easy handling in tough environments
  • Level control as standard
  • Plug-and-pump installation
Models
  • JS 4 W medium head: 1~
  • JS 7 W medium head: 1~
  • JS 8 W medium head: 1~

Weight; JS 4: 13.8  kg, JS 7: 16.8 kg, JS 8: 18.3 kg

 See our performance ranges
Performance range JS 4
Performance range - JS 4
Performance range – JS 7
Performance range - JS 7
Performance range – JS 8
Performance range – JS 8
Introduction to our small drainage pumps

Lightweight pumps in robust design

The portable pumps JS 4, JS 7 and JS 8 handle sludge, slurry, or abrasive water with solids content from construction sites, mining, tunnelling, and quarries.

The sludge pumps are designed with robust hydraulic parts in wear resistant nodular cast iron for reliable performance. Vortex impellers and agitator at the end of the shaft minimize the risk of clogging.

Level control as standard

The submersible sludge pumps are equipped for immediate plug-in with automatic level control start as standard and offer a dry-running protection.
Motor protection, discharge connections

Motor protection

Built-in thermal protector

Discharge connections

JS 4, JS 7
2” hose connections
2” B.S.P. threaded connections
Storz C
Storz coupling included in the Ecoline

JS 8
3” hose connections
3” B.S.P. threaded connections
Storz B
Storz coupling included in the Ecoline
Dimension drawing
Dimensional drawing submersible sludge pumps JS 4, JS 7 and JS 8
Technical data JS 4 W
Electric submersible pump JS 4 W
Maximum submergence 7 m
Protection class IP 68
pH of the pumped medium 6.5 – 8.5
Strainer hole 6 mm
Motor range P2 0.4 kW, 1~
Speed 2'850 rpm
Power cable 10 m H07RN8-F
Technical data JS 7 W
Electric submersible pump JS 7 W
Maximum submergence 7 m
Protection class IP 68
pH of the pumped medium 6.5 – 8.5
Strainer hole 6 mm
Motor range P2 0.75 kW, 1~
Speed 2'850 rpm
Power cable 10 m H07RN8-F
Technical data JS 8 W
Electric submersible pump JS 8 W
Maximum submergence 7 m
Protection class IP 68
pH of the pumped medium 6.5 – 8.5
Strainer hole 6 mm
Motor range P2 0.75 kW, 1~
Speed 2'850 rpm
Power cable 10 m H07RN8-F
Documents
Applications
  • XJ pump with AquaTronic in cut view
    AquaTronic - the intelligent option
    The world’s smartest dewatering pumps for applications in mines, construction sites and tunnels are equipped with the innovative AquaTronic. AquaTronic ensures correct motor rotation, gives motor protection, allows the pump to start via a level sensor, and gives you all the pump performance information in your PC, plus much more.
  • Excavator holding drainage pump in pit at site for dewatering in construction
    Dewatering in construction
    From roads and bridges to ditches and dams, construction sites are difficult places to work. Construction site managers need solid economic reasons for purchasing equipment. Our submersible dewatering pumps provide them.
  • Men at dewatering in tunneling site with XJ drainage pump
    Dewatering in tunneling
    A tunnel construction is a complex worksite were many different variables need to be taken into consideration, flooding is one of them. Our drainage and sludge submersible dewatering pumps are lightweight, portable and start when you plug them in.
  • Open pit mine
    Mine water management
    Sulzer offers a comprehensive portfolio of pumps and process equipment for abrasive and corrosive environments in mine water management applications.

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