Tel: +44 (0) 1793 862100 Email:

Magnet Sales & Service Ltd
Unit 31,
Blackworth Industrial Estate,
SN6 7NA.

Registered in England 2858057


Magnetic Testing and Measuring

MSS has the ability to identify and magnetically measure magnetic material to match existing specifications and to clarify performance and quality criteria.

MSS also supply Gauss meters, field traces and polarity indicators for those working or assembling magnets in house.


Part Number GSMT 00529

Our Gauss Meter is intended for portable measurements of permanent magnetic fields of up to 30KGs with a transverse probe and 5KGs with an axial probe. This hand held battery operated instrument provides a simple means of testing all permanent magnets and magnetic systems. It comes complete with a transverse probe and padded carry case. A traceable calibration certificate is also available.

For full specification please see attached file download.

For further information on our full range of Gauss Meters please visit our dedicated page.

Magnetic Pull Tester

Where a minimum holding force is required from a magnet or magnetic assembly, the magnet is pull tested prior to despatch. Capable of applying up to 200kg of load to a magnet, this device helps us to ensure the highest levels of quality control.

Helmholtz Coil

Helmholtz coils are used to measure the average magnetic moment of a permanent magnet. The coil consists of a pair of identical coaxial coils, with a diamter which is exactly double the distance between the coils. This produces a homogenous field between the two coils which can be used to measure small magnetic dipoles with constant sensitivity. The coils are coupled to an integrator, the output of which is directly proportional to the total magnetic moment of the magnet. 

Hysteresis/Force Testing

We are currently testing voice coil motors which are used in life support systems. Since this is a critical care application, the motors must conform to strict FDA requirements. Each component is 100% tested prior to and during the assembly process. After the motor is assembled, we accurately measure the force, hysteresis and shaft length of the motor. To pass the tests, the motor must fall within tight tolerances as specified by the customer.


Part Number MGFW 00676Part Number

MGFW 00676 Approximate Used for the identification of North & South seeking poles and will prove an invaluable aid for the assembly of permanent magnets when polarity is important.

Magnetic Viewing Film

Part Number FTSH 00936

100 x 67 x 1mm active area 50 x 50mm A handy pocket sized card which quickly shows pole definition and direction of magnetic axis when placed on the surface of a permanent magnet.

Also available in 300mm sq sheets.
Part Number VP00452


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