Product inlet/outlet size : 1250x300 mm
SEK-P-1250-3-FN-DC-Ex
SKU: SRKP125035
Stock *: 0
Max. capacity: 240 m³/h
No of magnets: 3
Build-in length: 1165 mm
The robust cascade shaped housing forces the product to closely pass 3 plate magnets. Because these are placed outside the product channel, the pipe channel is unobstructed. In this way, high capacities can be processed, and a high separation efficiency is achieved.Cascade magnets filter ferrous contaminants from 0.5 to 50 mm from free falling coarse product flows, and are cleaned automatically. Application examples: bulk, animal feed, plastics, ceramics and recycling industries.

Capacity up to 300 m³/h
Capture Fe particles from 0.5 mm
Max. particle size 50 mm
ATEX II 1/2 D
Automatic cleaning (discontinuous)

Application

For coarse, high capacity material flows

Cascade magnets filter ferrous contaminants - such as iron and steel - out of granulates, fibres and coarser product flows in high capacity free-fall pipelines. 
 
They are often used in the bulk, animal feed, plastics, ceramic and recycling industries, among others.

Design

Construction & materials data

Click on a product variant to find the data sheet, drawings and other downloadable product information.
 
Description
The robust housing has 3 cascade stages by default. Each stage has a plate magnet against the outside of the housing. These plate magnets have a powerful and deep magnetic field, that extracts the ferrous particles out of the product flow. They retain those ferrous particles until they are cleaned. The last magnet is an extra strong neodymium version to obtain an even better separation efficiency.
 
The magnets are clamped against the housing by pneumatic cylinders, also when air pressure is lost.
 
Summary of important specifications

Magnet quality: ferrite / neodymium
Materials - in contact with product: stainless steel
Finishing: painted
ATEX marking: Ex II 1/2
Dust/water protection class: IP54
Solenoid valve electric supply: 24 V DC
Pneumatic supply: max. 6 bar


Options

Available versions, options & accessories

Click on a product variant to find the online available accessories & spare parts.

Working principle

Filtering & discharging of ferrous contaminants

How does the magnetic filtering work?
The plate magnets have a powerful and deep magnetic field, with which they pull the ferrous particles from the product flow. The ferrous parts are clamped against the magnet and held there until they are cleaned.
 
How does the cleaning / iron discharging work?
With the cascade magnets, you must stop the product flow in order to clean the magnets from filtered ferrous particles.
 
Cleaning / iron discharging sequence

Stop the product flow
Send the signal to the controller to start a cleaning cycle
After a start signal is sent the cleaning process is performed completely automatically, via a pneumatic sequence circuit:

iron discharge valve opens to its iron discharge position
magnets move away from the housing – the iron falls off and is discharged via the iron discharge chute
magnets are pulled back against the housing
iron discharge valve closes to its production position
Restart the product flow