Product Description:

Permanent magnetic pulleys are ideal magnetic products used as head pulleys in belt conveyors. These pulleys offer superior removal of ferrous contamination like nails, spikes, nuts, bolts, cans, and wire from material conveyor with maintenance-free operation. Whatever your application is, a magnet is a low-cost way to remove that unwanted ferrous metal from your waste stream. They require very little maintenance and can last for years with proper care.

Applications:

  • Waste recovery
  • Feed & Grain
  • Mining
  • Recycling Applications
  • Cement
  • Coal Handling Plant
  • Salt processing industries
  • Glass
  • Paper
  • Refractory
  • Minerals (e.g. Bauxite)
Magnetic Pully side view   Magnetic Pulley front view

Magnetic Pulley Installed at TATA STEEL KALINGANAGAR PLANT, Orissa

  • Dia Meter 800mm X 2250 effective length
  • High-Intensity Magnetic Pulley
  • 4500±500 Gauss on Magnet Surface
Magnetic Big Pully-1   Magnetic Big Pulley-2
Magnetic Big Pulley-3   Magnetic Big Pulley-4

How Does it work?

The magnetic field of the pulley attracts the ferrous fines which are held to the belt until it reaches the underside. The separated ferrous materials pass out of the magnetic field and are collected separately into a chute or bin. The cleaned material is discharged normally over the pulley in a vertical drop.

Magnetic Pulley drawing1 Magnetic Pulley drawing2

Magnetic Pulleys have following features:

  • The magnetic pulleys can be installed easily at conveyor discharge
  • They give complete magnetic protection over the entire face of the pulley for removing ferrous contaminants
  • For different conveyors the magnetic pulleys of different sizes are available
  • The pulleys either use ceramic magnets or powerful rare earth magnets

General Specification:

  • Flux density: 4500 ± 200 gauss
  • Attraction Distance: Up to 300mm / 12inches
  • Maximum operating temperature 450ᵒC
  • In all pulleys, best grade St. Ferrite/Rear Earth magnets are used for construction. The outer face and the endplates of the magnetic pulley are made out of stainless steel
  • The magnetic pulley removes contaminants like nuts, bolts, wire, tools, etc.
  • It protects equipment and product from the hazards of tramp iron

Types:

  • High Intensity – (NdFeb Magnet – 4500 Gauss)
  • Low Intensity - ( Ferrite Magnet - 1200 Gauss)

High intensity Magnetic pulley Permissible Max. Operating Temp. 80˚C

(Peak flux density value 5,000 ± 500 Gauss, when measured on Magnetic Surface)

Drawing-for-High-intensity-Magnetic-pulley
High intensity Magnetic pulley
Model No. Belt width Pulley Size Total Lg. Shaft Dia. Key Way Size
HMP 240 350 Ø200 x 400LG. 750 Ø35 10W x 8 THK.
HMP 245 400 Ø200 x 450LG. 800 Ø35 10W x 8 THK.
HMP 250 450 Ø200 x 500LG. 850 Ø35 10W x 8 THK.
HMP 255 500 Ø200 x 550LG. 900 Ø35 10W x 8 THK.
HMP 260 550 Ø200 x 600LG. 950 Ø35 10W x 8 THK.
HMP 265 600 Ø200 x 650LG. 1000 Ø35 10W x 8 THK.
HMP 270 650 Ø200 x 700LG. 1050 Ø35 10W x 8 THK.
HMP 275 700 Ø200 x 750LG. 1100 Ø35 10W x 8 THK.
HMP 280 750 Ø200 x 800LG. 1150 Ø35 10W x 8 THK.
HMP 285 800 Ø200 x 850LG. 1200 Ø35 10W x 8 THK.
HMP 290 850 Ø200 x 900LG. 1250 Ø35 10W x 8 THK.
HMP 295 900 Ø200 x 950LG. 1300 Ø35 10W x 8 THK.
HMP 2100 950 Ø200 x 1000LG. 1350 Ø35 10W x 8 THK.
HMP 340 350 Ø300 x 400LG. 750 Ø45 14W x 9 THK.
HMP 345 400 Ø300 x 450LG. 800 Ø45 14W x 9 THK.
HMP 350 450 Ø300 x 500LG. 850 Ø45 14W x 9 THK.
HMP 355 500 Ø300 x 550LG. 900 Ø45 14W x 9 THK.
HMP 360 550 Ø300 x 600LG. 950 Ø45 14W x 9 THK.
HMP 365 600 Ø300 x 650LG. 1000 Ø45 14W x 9 THK.
HMP 370 650 Ø300 x 700LG. 1050 Ø45 14W x 9 THK.
HMP 375 700 Ø300 x 750LG. 1100 Ø45 14W x 9 THK.
HMP 380 750 Ø300 x 800LG. 1150 Ø45 14W x 9 THK.
HMP 385 800 Ø300 x 850LG. 1200 Ø45 14W x 9 THK.
HMP 390 850 Ø300 x 900LG. 1250 Ø45 14W x 9 THK.
HMP 395 900 Ø300 x 950LG. 1300 Ø45 14W x 9 THK.
HMP 3100 950 Ø300 x 1000LG. 1350 Ø45 14W x 9 THK.
HMP 440 350 Ø400 x 400LG. 750 Ø55 16W x 10 THK.
HMP 445 400 Ø400 x 450LG. 800 Ø55 16W x 10 THK.
HMP 450 450 Ø400 x 500LG. 850 Ø55 16W x 10 THK.
HMP 455 500 Ø400 x 550LG. 900 Ø55 16W x 10 THK.
HMP 460 550 Ø400 x 600LG. 950 Ø55 16W x 10 THK.
HMP 465 600 Ø400 x 650LG. 1000 Ø55 16W x 10 THK.
HMP 470 650 Ø400 x 700LG. 1050 Ø55 16W x 10 THK.
HMP 475 700 Ø400 x 750LG. 1100 Ø55 16W x 10 THK.
HMP 480 750 Ø400 x 800LG. 1150 Ø55 16W x 10 THK.
HMP 485 800 Ø400 x 850LG. 1200 Ø55 16W x 10 THK.
HMP 485 800 Ø400 x 850LG. 1200 Ø55 16W x 10 THK.
HMP 490 850 Ø400 x 900LG. 1250 Ø55 16W x 10 THK.
HMP 495 900 Ø400 x 950LG. 1300 Ø55 16W x 10 THK.
HMP 4100 950 Ø400 x 1000LG. 1350 Ø55 16W x 10 THK.
HMP 540 350 Ø500 x 400LG. 750 Ø65 18W x 11 THK.
HMP 545 400 Ø500 x 450LG. 800 Ø65 18W x 11 THK.
HMP 550 450 Ø500 x 500LG. 850 Ø65 18W x 11 THK.
HMP 555 500 Ø500 x 550LG. 900 Ø65 18W x 11 THK.
HMP 560 550 Ø500 x 600LG. 950 Ø65 18W x 11 THK.
HMP 565 600 Ø500 x 650LG. 1000 Ø65 18W x 11 THK.
HMP 570 650 Ø500 x 700LG. 1050 Ø65 18W x 11 THK.
HMP 575 700 Ø500 x 750LG. 1100 Ø65 18W x 11 THK.
HMP 580 750 Ø500 x 800LG. 1150 Ø65 18W x 11 THK.
HMP 585 800 Ø500 x 850LG. 1200 Ø65 18W x 11 THK.
HMP 590 850 Ø500 x 900LG. 1250 Ø65 18W x 11 THK.
HMP 595 900 Ø500 x 950LG. 1300 Ø65 18W x 11 THK.
HMP 5100 950 Ø500 x 1000LG. 1350 Ø65 18W x 11 THK.
HMP 640 350 Ø600 x 400LG. 750 Ø75 20W x 11 THK.
HMP 645 400 Ø600 x 450LG. 800 Ø75 20W x 11 THK.
HMP 650 450 Ø600 x 500LG. 850 Ø75 20W x 11 THK.
HMP 655 500 Ø600 x 550LG. 900 Ø75 20W x 11 THK.
HMP 660 550 Ø600 x 600LG. 950 Ø75 20W x 11 THK.
HMP 665 600 Ø600 x 650LG. 1000 Ø75 20W x 11 THK.
HMP 670 650 Ø600 x 700LG. 1050 Ø75 20W x 11 THK.
HMP 675 700 Ø600 x 750LG. 1100 Ø75 20W x 11 THK.
HMP 680 750 Ø600 x 800LG. 1150 Ø75 20W x 11 THK.
HMP 685 800 Ø600 x 850LG. 1200 Ø75 20W x 11 THK.
HMP 690 850 Ø600 x 900LG. 1250 Ø75 20W x 11 THK.
HMP 695 900 Ø600 x 950LG. 1300 Ø75 20W x 11 THK.
HMP 6100 950 Ø600 x 1000LG. 1350 Ø75 20W x 11 THK.

Customized Pulley Designs:

PML also makes custom-designed Magnetic Pulleys to precisely fit customer’s applications. The following information is required: 

  • Type of material
  • Conveyor belt width
  • Belt Speed
  • Size and concentration of the contamination
  • Burden depth

Construction

The magnetic pulley is made up of magnets placed inside a Stainless Steel 304/316 drum shell on a shaft. All shafts are made up of steel and are amply supported to handle the required load. Shafts are carefully machined from oversize stock to required finished dimensions. The magnets are enclosed totally inside the stainless steel drum. These are installed as a head pulley in belt conveyors. The self-cleaning magnetic pulleys are equally effective in the separation of both large and fine particles from non-ferrous material.

Installation

Installation is often very simple. Four bolts on a set of pillow block bearings normally hold the pulley in place. Loosen the conveyor belt, remove the old pulley and install the magnetized pulley. This type of installation does not require electricity.

Buying Tips:

Buyer before going for magnetic pulley must keep in mind the following considerations:

  • The width of the pulley must match with the width of your equipment
  • The diameter of the pulley and shaft must match the diameter of the equipment
  • The pulley selected must fit into your conveyor system

Why PML Magnetic Pulley?

  • 45 years of experience in design and development of Permanent Magnets and Magnetic Systems
  • Easy to clean and no maintenance cost and preventing expensive shutdown and delays for equipment down the process line
  • No power cost
  • Installation of these Pulleys improves product quality thereby enhances product value
  • Services such as magnetic calibration/Audit are available
  • PML also makes customized design pulleys
Pulley Application1 Pulley Application2

FAQ for Magnetic Pulley

  • 1) Can we get 10000 Gauss on the surface of magnetic pulley?
  • Ans - No. Presently PML supplying Magetic pulley in 2 variations with 1200 Gauss & 4500 Gauss only.
  • 2) Where to install magnetic pulley?
  • Ans - Magnetic pulley shoule be used in belt coneyor. Customer can replace the exisiting Non-Magnetic pulley.
  • 3) Does magnetic pulley comes with rubber lagging?
  • Ans - If customer requires then rubbet lagging can be provided.
  • 4) What is the range of magnetic field of pulley?
  • Ans - Depending on it's size the magnetic range varies between 2 to 6 inches.
  • 5) Does it require power supply for working?
  • Ans - No. It is made up with permanent magnets.
  • 6) How should i select the magnet size?
  • Ans - Please select PML standard model as per size of the conveyor belt & system working at your end.
  • 7) What will be the life for magnet?
  • Ans - It is a permanent magnet it will not loose its magnetism. Magnet can get demagnetized in two cases, a) When it get damaged. b) When magnet get exposed beyond specified operating temperature. But magnet can loose its magnetism 2% to 3% over the span of 5years.
  • 8) Can we recharge the magnet?
  • Ans - No. Magnet cannot be recharged.
  • 9) How we can measure the power of magnet ?
  • Ans - Magnetic intensity can be checked by gauss meter. We also provide calibration services, which we will be valid for 1year
  • 10) Is this magnetic pulley efficient to remove 100% iron contamination from the material flowing over the conveyor belt?
  • Ans - It is advisable to use the suspended magnet & magnetic pulley in combination for effective to the removal of tramp iron.

Our Valuable Customers for Magnetic Pulley

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