Engineering Report: 1/14/2014
Pole Shoe Comparison Analysis
Objective:
Compare 3 Different Pole Shoe shapes (Flat, V-Cut, Rounded) this will determine when designing pole
shoes the quality of holding force with different pole shoe shapes.
Conclusive Results:
Table 1:
Results of
3 Different Pole
Magswitch Unit
AR50
Pole Shoe
Flat
V-Cut
Rounded
Holding Force (lbs)
250.86
220.65
516.3
Holding Force (kg)
114.03
100.30
234.68
Conclusive
Holding Force for
Shoe Types
Analysis Set-up:
Magnet Housing Used: AR50
Part Used: 12” Diameter Pipe
Air Gap: No Air Gap
Pole Shoe Used: 3 Pole Shoes: Flat, V-Cut, Rounded
AR50 Flat Pole Shoe
12” Pipe
1
Magswitch Technology Inc.
8774 Yates Drive, Suite 140
Westminster, CO 80031 USA
Engineering Report: 1/14/2014
Figure 1: Flat Pole Shoe Analysis Set-Up
AR50 V-Cut Pole Shoe
12” Pipe
Figure 2: V-Cut Pole Shoe Analysis Set-Up
AR50 Rounded Pole Shoe
12” Pipe
2
Magswitch Technology Inc.
8774 Yates Drive, Suite 140
Westminster, CO 80031 USA
Engineering Report: 1/14/2014
Figure 2: V-Cut Pole Shoe Analysis Set-Up
Analysis Results:
Flat Pole Shoe
Figure 4: Magnetic B Field of AR50 with Flat Pole Shoes
3
Magswitch Technology Inc.
8774 Yates Drive, Suite 140
Westminster, CO 80031 USA
Engineering Report: 1/14/2014
Figure 5: Front View of Magnetic B Field of AR50 with Flat Pole Shoes
Figure 6: Top View of Magnetic B Field of AR50 with Flat Pole Shoe
4
Magswitch Technology Inc.
8774 Yates Drive, Suite 140
Westminster, CO 80031 USA
Engineering Report: 1/14/2014
Figure 7: External Magnetic B Field of AR50 with Flat Pole Shoes
Figure 8: Magnetic B Vector Field of AR50 Unit with Flat Pole Shoes
5
Magswitch Technology Inc.
8774 Yates Drive, Suite 140
Westminster, CO 80031 USA
Engineering Report: 1/14/2014
Figure 9: Top View of Magnetic B Vector Field of AR50 Unit with Flat Pole Shoes
V-Cut
Pole Shoe
Figure 10: Magnetic B Field of AR50 with V-Cut Pole Shoes
6
Magswitch Technology Inc.
8774 Yates Drive, Suite 140
Westminster, CO 80031 USA
Engineering Report: 1/14/2014
Figure 11: Front View of Magnetic B Field of AR50 with V-Cut Pole Shoes
Figure 12: Top View of Magnetic B Field of AR50 with V-Cut Pole Shoe
7
Magswitch Technology Inc.
8774 Yates Drive, Suite 140
Westminster, CO 80031 USA
Engineering Report: 1/14/2014
Figure 13: External Magnetic B Field of AR50 with V-Cut Pole Shoes
Figure 14: Magnetic B Vector Field of AR50 Unit with V-Cut Pole Shoes
8
Magswitch Technology Inc.
8774 Yates Drive, Suite 140
Westminster, CO 80031 USA
Engineering Report: 1/14/2014
Figure 15: Top View of Magnetic B Vector Field of AR50 Unit with V-Cut Pole Shoes
Rounded Pole Shoe
Figure 16: Magnetic B Field of AR50 with Rounded Pole Shoes
9
Magswitch Technology Inc.
8774 Yates Drive, Suite 140
Westminster, CO 80031 USA
Engineering Report: 1/14/2014
Figure 17: Front View of Magnetic B Field of AR50 with Rounded Pole Shoes
10
Magswitch Technology Inc.
8774 Yates Drive, Suite 140
Westminster, CO 80031 USA
Engineering Report: 1/14/2014
Figure 18: Top View of Magnetic B Field of AR50 with Rounded Pole Shoe
Figure 19: External Magnetic B Field of AR50 with Rounded Pole Shoes
Figure 20: Magnetic B Vector Field of AR50 Unit with Rounded Pole Shoes
11
Magswitch Technology Inc.
8774 Yates Drive, Suite 140
Westminster, CO 80031 USA
Engineering Report: 1/14/2014
Figure 21: Top View of Magnetic B Vector Field of AR50 Unit with Rounded Pole Shoes
Engineering Analysis:
From the analysis it can be seen that creating a pole shoe that contours to the part significantly increases
the holding force of the magnet. The V-Cut and Flat Pole shoes had similar performances, but the V-Cut Pole
Shoes are able to stabilize the part by creating 2 points of contact on each pole shoe. With the V-Cut and Flat
Pole Shoe we see about a 50% reduction of holding force on the part. This shows that creating custom pole
shoes for applications with irregular or round shapes will greatly reduce the number of units that are required to
lift a part.
12
Magswitch Technology Inc.
8774 Yates Drive, Suite 140
Westminster, CO 80031 USA