Suspended Permanent Magnet

Product Description

PML Suspended Magnets are placed above open conveyors to arrest ferrous objects and fines found in grains, feed stuffs, raw and processed products, dry chemicals, salt, ceramics, Clinkers in Cement Industry, Coal conveying in power plants and many other products.

Application photos of Magnetic filter

Suspended Permanent Magnet

Price List for Standard Suspended Magnet:

STANDARD PERMANENT MAGNETIC FILTER
Model No. Dimension
(W x L x H)
mm
For Conveyor
Belt width (mm)
Conveyor Belt
Speed Mtr. / Sec.
SPM-0050 500 x 500 x 245 500 1.0
SPM-0066 650 x 650 x 245 650 1.2
SPM-0068 650 x 800 x 245 650 1.6
SPM-0088 800 x 800 x 245 800 1.2
SPM-0810 800 x 1000 x 245 800 1.6
SPM-1010 1000 x 1000 x 245 1000 1.2
SPM-1012 1000 x 1200 x 245 1000 1.5
SPM-1212 1200 x 1200 x 245 1200 1.5

W= Width of Magnet. (This should be decided based on the width of the conveyor)
L= Length of Magnet (This should be decided based on the belt speed. Higher the speed, higher the length required.)
Material of Magnetic Surface : S.S. 304

General Specification:

  • Flux density: 1500 ± 200 gauss.
  • Attraction Distance: For M10 x 100 mm Length MS bolt Upto 300mm/12inches, If free path is available.
  • Height of Suspension magnet is 245mm
  • Maximum operating temperature 450 Degree C.
  • In all suspension magnets, best grade St. Ferrite magnets are used for construction.

Customized Suspended Magnet:

  1. Type of material
  2. Conveyor belt width
  3. Belt Speed
  4. Size and concentration of the contamination
  5. Burden depth

How does it work?

Suspended Permanent Magnets Working

Suspended Magnet is placed over the conveying belts carrying the material. This system arrests Ferromagnetic materials from distance of 300mm/12 inches from feed material which is transported through the production process.

Construction

Suspended Permanent Magnet Construction

Suspended magnets are generally in big sizes depending upon the width and speed of the conveyor belt. They are provided with eye bolts, D shackle and sling chains with turnbuckles for adjustments while mounting.

Suspended magnet - maximum tramp iron attraction distance chart
Sr. no. Tramp Iron particle Size in mm Weight Maximum Attraction distance in Inches
1 Paper clip 30 mm 0.6 gm 10.5 13 13 13.5 14 14 14.5 14.5
2 Stapler pin 10 mm 0.016 gm 8.5 11 11 12 14 14 14.5 14.5
3 Nail DIA 2 X 45 L 1.16 gm 10.5 12 12.5 13 14 14 14 17
4 Spanner 8,9 20 gm 8 12 12 12 12.5 12.5 16 16
5 Spanner 18,19 120 mg 8.5 11 11.5 12 12 12.5 16 16
6 Spanner 20,24 200gm 8.5 11 11 11.5 11.5 12 15 15
7 Spanner 33,37 500 gm 9 11 11 11.5 11.5 12 15 15
8 Bolt M10 x 100 L. 50 gm 9.5 10 11 12 12 13 16 16
9 Bolt M20 x 100 L 250 gm 6.5 6.5 7 8 8.5 9 9 9.5
10 Bolt M16 x 60 100 gm 8 8 9.5 10 10.5 11 11 12
11 Nut M16 10 gm 6.5 6.5 7.5 8 8 9 9.5 9.5
12 Nut M8 5 gm 5 5 6 6.5 6.5 7 7.5 9
13 Washer OD 17 X ID 9 X 1.5 THK - 5 5 8.5 9 9.5 10 10 10.5
15 Round M.S.Piece Dia 23 x 2 THK - 7 7 7.5 7.5 7.5 8 12 12
16 Round M.S. Piece Dia 30 x 1.5 THK - 7 8.5 9 9.5 9.5 10 10 11
17 Std. weight - 500 gm 5.5 5.5 6 6 6.5 6.5 7 7
18 Std. weight - 1 kg 5.5 6 7 7 7 7.5 7.5 7.5
19 Std. weight - 2 kg 6.5 7 7 7.5 7.5 7.5 8 8
20 Std. weight - 5 kg 7 7 7.5 7.5 7.5 8 9 9
21 M.S.angle 770 L X 80 W X 40 H 1.5 kg 10 11 13 13 14 15 16 18
22 Channel 700 L X 50 W X 50 H 2.64 kg 9 11.5 14 14 14.5 15 17 18
23 Channel 365 x 20 x 20 - 8 14 14 14 14 14.5 16 16

Note:

  1. The above attraction distances are taken at a point below the geometrical center point of the suspended magnet assembly.
  2. The above trial results are obtained when free path is available for tramp iron particle.
  3. The above chart is given for the reference. One may get a deviation of 1 to 2 inches in attraction distances depending on actual site conditions.
  4. The MOC of rollers & frames of conveyor should be of non magnetic material (S.S.304), otherwise all the magnetic flux will pass through the conveyor & it will reduces the efficiency of magnet.
  5. It is advisable to use the suspended magnet & magnetic pulley in combination for effective to removal of tramp iron.

Why PML Suspended Magnet?

  • 45 years of experience in design and development of Permanent Magnets and Magnetic Systems.
  • Mounting chains are tested and certified for load bearing capacity by a government approved testing Authority.
  • Customized Design
  • Services such as magnetic calibration/Audit are available.
  • Easy to clean and no maintenance cost and preventing expensive shut down and delays for equipment down the process line.
  • No power cost.
  • Installation of these Suspended Magnets improves product quality thereby enhances product value.
  • Services such as magnetic calibration/Audit are available.
  • PML also makes customized design and self cleaning grills.

Some of PML’s Valued customers:

  • Ambuja Cements Ltd.
  • K. White Cements Ltd.
  • Ultratech Cements Ltd.
  • Sterlite Industries Ltd.
  • RISHABH Stone Crushing Ltd.
  • Grasim Indsutries Ltd.
  • BLA Power Ltd.
  • Manglore Chemical & fertilizers Ltd.
  • Goa Carbon Ltd.
  • Trivent Earth Movers Pvt Ltd.
  • Chettinad Cements Ltd.
  • Shi Vishnu Cements Ltd.
  • Gujrat Sidhi Cements Ltd.
  • Metso Minerals Pvt Ltd.
  • Kerala Chemicals & Protiens Ltd., Kochi
  • Gujrat Fluorochemical Ltd.,Bharuch
  • Praweg Conveyors Thane
  • AGI Glasspac Hyderabad  
  • Monara Engineering & Trading (P) Ltd., Sri Lanka