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Product code: JS SK Cutter

JS SK Cutter / Shredder Submersible Pumps

Pump Type - Submersible

Max Flow Rate - 138M³H

Max Head - 39M

Max Temp - 40°C

Max Viscosity - 50 cst

Max Solid Passage - 35mm

Self Priming - N

Pump Materials - AISI304, Cast Iron

Inlet/Outlet Sizes - 50mm to 152mm

Drive - AC Electric

Max Suction Lift - 0



£559.00 (ex VAT)

This product has a delivery lead time of 1-2 days


SK Cutter / Shredder Submersible Pumps

Flow Rate

Up to 2300 l/min

Head (Pressure)

Up to 39 metres

Sizes Available

2” - 6”

Drive Options / Power

Electric Motors

Operating Temperature

Up to 40°C


JS submersible pumps are designed for heavy duty usage low- high flow at low-high pressures applications, JS offers a vast number of pump types from puddle pumps to drainage, grinder and vortex submersible pumps the JS range is a great option for must domestic or industrial applications, these submersible pumps are typically used for sewage dewatering, waste water as well as sand, mud/sludge and slurry dewatering.


JS submersible pumps are available with a variety of impeller types, depending on the pump model such as grinder, vortex and cutter, there are also a number of different mechanical sealing options and materials available, in addition some models can be supplied with integrated agitators these feature is quite useful when handling large concentrations of solids as it's specifically designed for keeping solids in suspension and as a result maintaining the pump's inlet unclogged consequently avoiding impeller blockage.


Available in single or three phase in both 50 and 60 Hz.

Most pumps can be supplied with or without float - manual or automatic.


The SK cutter submersible pumps also known as shredder pumps are designed to shred soft solids into smaller particles, this action is done due to the rotation of the impeller against a grinding diffuser plate, these pump range is typically used for handling sewage containing large concentrations of soft solids such as sewage treatment plants. These pump range is suitable for domestic and industrial applications.


The SK cutter submersible pump range is available in both single and 3 phase  - 400V 3 phase and as a manual pump only – without float, these pump range can be supplied either free-standing or guide rail mounted.



Design Features/Benefits


        Double hard face mechanical seal

        Available in 400V three phase – (Manual only – without float)

        Can be supplied free-standing or with guide rail

        Supplied with dual mechanical seal

        Supplied with thermal protection

        IP68 protection

        7 metres max submersion depth

        Liquid temperature up to 40°C

        60Hz frequency also available upon request



Typical Applications/Fluids:

        Drainage / dewatering

        Sewage transfer

        Light industrial

        Treatment plants

        Clean water and dirty water



No, definitely not! submersible pumps will incur damage even after short periods of dry running. The mechanical seal requires lubrication and cooling while the pump is operating. Without the presence of fluid, the mechanical seal will overheat and crack, and this may cause the pump to leak and fluid to enter the motor. There is also the possibility that the motor will burn out as this requires cooling by the fluid during operation. Our advice is to ensure that the pump and motor are always submerged during operation. There are two main ways to ensure the pump only operates in the event of submersion. Firstly, only the operator turns the pump on and off manually when they have a clear view of the sump. Secondly, fit the pump with a float switch that will automatically turn the pump off once the fluid has dropped to a specific level in the chamber. If you think that dry running is inevitable, then please speak to us and we will try to select a more suitable pump for your application.
Manual and automatic are the two main ways to describe how a submersible pump will operate. Manual means that the operator manually turns the pump on and off when required, turning the pump off and avoiding any possible damage from dry running is solely the liability of the operator. Automatic means that the pump will turn on and off automatically via a float switch or float switches. A float switch is connected to the motor that detects the fluid level in the sump, the pump is turned on when the level is high enough, and the pump is turned off when the fluid drops to an acceptable level.
A clear picture of the pump system is required to make an accurate selection. The main pieces of information required include; a description of the application, bore of pipework, the fluid, flow rate and pressure/head. With these pieces of information, a pump can be sized correctly to ensure it delivers the required flow rate and pressure and that is also operates at its best efficiency point to lower lifetime costs. Knowing if the pump is running intermittently or continuously also allows the correct motor speed to be selected. For instance, a pump running continuously 24/7 will require a 4 pole motor rather than a 2 pole motor. Running the motor slower and oversizing the pump will reduce wear of the motor and the pump, therefore lowering maintenance costs during their lifetime.
Yes, absolutely! In fact, submersible pump motors need to be submerged in fluid during operation for cooling and to avoid overheating. These motors have an IP rating of 68. IP stands for Ingress Protection, this is a measurement of a component's resistance to dust and fluid entering.
Please be aware that the figures displayed relate to the largest pump from this range of products, not specific models. For details on solids passage for specific models, please refer to datasheets or contact a member of our sales team.


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