Suspended Permanent Magnet

Product Description

PML Suspended Permanent Magnetic Separators 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.

Suspended Permanent Magnets are used for separating big Ferrous particles like lugs, nuts, bolts, rivets, ms plates, angles, channels and tools from moving material on a conveyor belt.

overband application1  overband application2

Construction:

Suspended Permanent 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.

overband drawing1

How Does it Work?

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

overband drawing2overband application3   overband application4

List of Standard PML Suspended Permanent Magnets

Standard Permanent Magnet
Model No. Length (mm) Width (mm) Height (mm) Max. Temp (ᵒC) Magnet Type Gauss Strength Max Attraction Height (mm)
SPM
0050
500 500 245 450 Ferrite 1500±200 300
SPM
0066
650 650 245 450 Ferrite 1500±200 300
SPM
0068
800 650 245 450 Ferrite 1500±200 300
SPM
0088
800 800 245 450 Ferrite 1500±200 300
SPM
0810
1000 800 245 450 Ferrite 1500±200 300
SPM
1010
1000 1000 245 450 Ferrite 1500±200 300
SPM
1012
1200 1000 245 450 Ferrite 1500±200 300
SPM
1212
1200 1200 245 450 Ferrite 1500±200 300

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)

customized over-band suspension magnets

PML also makes custom designed Overband Magnets to precisely fit customer’s application. Information required is following: 

  • Type of Material
  • Conveyor Belt Width
  • Belt Speed
  • Size and Concentration of the Contamination
  • Burden Depth

Suspended magnet - maximum tramp iron attraction distance chart

Suspended magnet - maximum tramp iron attraction distance chart
Sr No. Tramp Iron particle Size in mm Weight Maximum Attraction distance in Inches
SPM-
0050
SPM-
0066
SPM-
0068
SPM-
0088
SPM-
0810
SPM-
1010
SPM-
1012
SPM-
1212
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, 24 200
gm
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
905 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 6.5 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 25 X ID 10 X 2 THK. - 5.5 5.5 9 11.5 11.5 12 12 12.5
14 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
- 1kg 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 - 5kg 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 attraction distance trial is taken at a point below the geometrical center point of the suspended magnet assembly.
  2. The above 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 distance depending on actual conditions.

Why PML Suspended Permanent Magnets?

  • PML has been a Permanent Magnet Manufacturer for over 45 years and has great experience in design and development of Permanent Magnets and Magnetic Equipment
  • Mounting chains are tested and certified for load bearing capacity by a government approved testing Authority
  • Customized Designs are available upon request
  • Easy to clean with no maintenance cost and no preventing expensive shut down and delays for equipment down the process line
  • Zero power cost
  • Installation of these Suspended Permanent Magnets improves product quality thereby enhances product value
  • Services such as Magnetic Calibration/Audit are available
  • PML's Magnetic Equipment are known to provide excellent Magnetic Separation of material

Some of PML's Valued Customers:

  • Ambuja Cements Ltd
  • J.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