MPI Bench Units

Fixed Coils

Rigid Fixed Coil


Multi-Turn Copper Coils

Bespoke multi-turn rigid fixed Copper coils for to use in conjunction with MPI bench units. These coils will last for decades and not degrade over time like some cheaper made cable on bobbin variants.

As with all bespoke builds Johnson & Allen recommend customers contact our technical sales department to discuss their precise needs first. Our experienced team can recommend the most economical way to achieve customer requirements.


Standard Designs

  • 3 Turn, 150mm working diameter
  • 5 Turn, 150mm working diameter

Smaller and larger diameter coils are possible but for larger sizes customers should consider a multi-directional coil as a larger coil may not fit between the headstocks correctly without the turns colliding with the back of the unit. 

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MPI Bench Units

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