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The TPM permanent lifting magnets are ideal tools for easy, quick and economical transport of heavy objects that are made from ferro-magnetic material. Typical operating areas are workshops and warehouses, loading and unloading of machines as well as the construction of jib cranes and fixtures. 

 

Factors that reduce the magnetic clamping force:-

Air gap: High magnetic forces created by the TPM allow the magnet to clamp components through the air gap, however air gaps will reduce the magnetic performance as they provide a barrier between the contact services. Air gaps occur in a number of different ways such as paint, dust and heavy mill scale. Poorly machined surfaces also contribute to an air gap. Please down rate the magnet capacity in accordance with the adhesive force/air diagram. 

 

Material Thickness: If the TPM is used to lift plates thinner than the recommended minimum thickness, the clamping forces will be significantly reduced. Performance curves can be identified in conjunction with the adhesive force/flat thickness diagram.

 

Contact Area:  Full Lifting capacity can only be achieved when the magnet has full contact with the component being lifted. If the contact surface has holes in it or is uneven the performance will be affected accordingly. Always carry out a trial lift in these circumstances to establish correct lifting before transporting the load! 

 

Material Type:  Certain materials have different abilities to carry magnetism. For materials other than mild steel a reduction factor must be applied in order to calculate the effective clamping force.

 

Typical Values: 

Ferrous alloy steels 0.8

High carbon steels 0.7

Cast iron 0.55

 

Examples of reduced WLL :

Mild steel 500g

Cast iron 500kg x 0.55 = 275kgs

 

  Flat Material Flat Material Flat Material Round Material Round Material Round Material   Dimensions Dimensions Dimensions Dimension  
Model Maximum Capacity WLL (kg) Minimnum Thickness To Obtain Maximum WLL (mm) Maximum Length Of Material (mm) Maximum Capacity WLL (kg) Diameter (mm) Maximum Length Of Material (mm) Tear Off Force (kg) A (mm) B (mm)  C (mm) D (mm) Weight (kg)
TPM0.1 100 15 2000 50 200-300 2000 300 122 69 185 160 6
TPM0.3 300 19 2500 150 200-300 2500 900 192 95 225 250 15.5
TPM0.5 500 25 3000 250 200-400 3000 1500 232 120 270 250 29.5
TPM0.8 800 35 3500 400 200-400 3500 2400 302 154 320 450 53
TPM1 1000 40 3500 500 200-400 3500 3000 332 154 320 450 60