For powders & granulates with relatively much ferrous impurities

Suitable for granulates and free-flowing powders with relatively large amounts of ferrous contaminations in non-pressurized free-fall pipes. Due to the automated contral and operation they are suitable for less easily accessible situations and / or centrally managed controls.

Not suitable for:

• When product loss is unacceptable. During a cleaning cycle some product might flow out of the product channel, together with the caught magnetic particles.
• Poorly flowing sticky / fatty powders that cause clogging. For those applications the rotating versions of these Cleanflows are a better solution.
• Pipeline transport under pressure.
• Products with particles smaller than 0.2 mm.
   

Construction & materials data

Short description
These automatic Cleanflow magnetic separators have 2 magnetic grids, placed staggered one above the other. They contain pneumatic magnetic bars, constructed of robust Ø34 mm SS tubes inside of which strong neodymium N42 magnet packages are moved by air pressure. The bars measure no less than 9400 gauss on the Ø34 mm tubes.

Click on a product variant to find the data sheet, drawings and other downloadable product information.

Summary of important specifications

• Siemens LOGO! PLC control.
• Ø34 mm pneumatic operated magnetic bars.
• Magnet quality: neodymium N-42, 9400 gauss on the Ø34 mm tube.
• Material housing and magnetic bars: AISI304 / AISI316(L).
• Finish: grit blasted.
• Material gaskets: PA6G acc. EC1935 / FDA.

Available accessories & options

• Version suitable for high temperatures up-to 120°C (not available for ATEX II 1/2D versions)
• Magnetic bars end position detection (not available for ATEX II 1/2D versions)

Working principle: Filtering & discharging of ferrous contaminants

How does the magnetic filtering work?
The magnetic grids with very strong neodymium magnetic bars are positioned in the middle of the product flow. The product with ferrous contaminants passes 2 magnetic bars while flowing through the separator. The magnets attract passing ferromagnetic contaminants. The captured particles stick to the magnets, while the purified product flows further.

How does the cleaning / iron discharging work?

• Production can continue during cleaning, because the magnetic bars of these Cleanflows are horizontally fixed inside the product channel. As a result, magnetic contaminants can never pass.
• The pneumatic tubes enclosing the magnetic bars are horizontally fixed positioned in both the product channel and - in turn - in the left and right side chutes for iron particle discharging.
• After you have given the start signal for an iron particle discharge cycle, the tubes slide over the magnets by air pressure to the left or right iron discharging chute.
• The retainer rings on the tubes hereby drag the trapped ferrous particles out of the product channel. Once outside the product channel, the ferrous particles fall off the tubes as soon as they are outside the influence of the magnets.
• The time interval between 2 iron particles discharge cycles can be set locally, on the PLC control on the machine, or from your central control.