Two New Overband Magnet Models

By Paul Fears | 22 April 2020

Bunting has added two new models to their popular and highly successful range of Permanent Overband Magnets.  The two new designs – the PCB-C (Compact) and QBC (Quick Belt Change) – meet specific requirements of reduced maintenance time and lighter weights.  These models expand the Overband range, which also includes the classic PCB model.

Bunting PMax Overband Magnet
New PCB C Overband Magnet

The design of the Overband Magnet is simple with two pulleys mounted on a frame either side of a permanent magnetic block.  As the name suggests, the Overband Magnet is positioned above a conveyor, either over the head pulley, or more commonly across the belt.  In operation, conveyed material passes under the Overband where the strong magnetic field attracts, lifts and then automatically discards tramp ferrous metal such as rebar.  Hundreds of Overband Magnets are built at the Bunting-Redditch plant every year.

The PCB-C (Compact) Overband Magnet

The development of the PCB-COverband Magnet meets the mobile plant industry’s move towards lighter and smaller designs (e.g. crushers and screens).  The PCB-C is 15% lighter than standard the PCB model across the range and 12% shorter in length.  These reductions result in a 14% higher magnetic force to weight ratio.  The PCB-C operates at a maximum working height of 300mm (above the conveyor) on belts with widths between 600 and 1500mm.  The reduction in weight and size is achieved through adopting new manufacturing processes, including investing in new production plant.  The new design is released in response to customer requests across Europe.

The QBC (Quick Belt Change)Overband Magnet

The QBC model is for applications where maintenance opportunities are limited.  The design allows for a fast belt change, significantly reducing maintenance downtime by at least 50% compared to the changing of a belt on a standard Permanent Overband Magnet.  The QBC operates at a maximum suspension height of 300mm on belts between 600 and 1500mm.  This new design of Overband is specifically designed for 24-hour 7-day operations where any production downtime can result in significant challenges.  This new model is also ideal when an Overband Magnet is in a location with limited or difficult accessibility.

QBC Overband Magnet
New QBC Overband Magnet

“The development of two new designs of Overband Magnet meet the changing needs of our customers,” explained Adrian Coleman, the General Manager of Bunting-Redditch.  “Our PCB model has been an industry-standard for several decades and remains the optimum design for many applications.  However, the PCB-C is specifically designed as a lower weight option for mobile plant, whilst the QBC offers significantly reduced maintenance time.”

The expanded range of Permanent Overband Magnets extends the range of Magnetic Separators and Eddy Current Separators Bunting manufacturers for the recycling and quarrying sectors.

For additional information on equipment used to separate and recover metals, please contact us on:

Email: Gordon Kerr at

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Telephone:  +44 (0) 1527 65858

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