Metso’s new Barmac set to make impact

Metso Minerals has launched the Barmac B9100SE Vertical Shaft Impact (VSI) crusher, an enhanced version of the original Barmac.

The crushing chamber of the B9100SE has had its geometry adjusted to improve the retention of build-up, which results in better protection of the crusher body. This in turn is said to lead to less maintenance.

The crushing chamber inspection door mechanism has been re-designed to make it more durable and easier to use. This allows easy access to the rotor for inspecting wear parts.

Improvements have also been made to the top half of the machine. The one-person operated roof lifter is now a standard option, and can be retrofitted. It has been developed to provide quick and easy access to the internal workings.

When used in conjunction with a Barmac service boom, rotors can be removed and refitted without the need for a crane or other lifting equipment. Metso says service to rotors can begin less than two minutes after rotation stops.

Feed hopper components have also been improved to increase the performance of the Cascade feed system and improve energy transfer. In combination with other variables such as rotor diameter, speed and crushing chamber profile, this is said to afford better power efficiency, reduced wear, while providing an efficient means of controlling the grinding and crushing action.

Another area of the machine updated is the cable ducting facilities that have been incorporated into the crusher body to help wire the VSI Operational Control System (VOCS) crusher protection and monitoring system. The VOCS is designed to provide the operator with continually updated information on the operating condition of vital mechanical components of the equipment. VOCS is now standard.

The motor mount and transmission structure has also been modified to support larger motors that allow the use of high voltage equipment and higher power, low voltage equipment.

New rotor and wear part technology is available with the special edition Barmac. A new style laminated rotor tip option can be used for particularly tough applications. Laminated tips use the properties of different tungsten grades to increase impact resistance and abrasion resistance. Mixing and matching the different tungsten grades allows the tip to be tailored to various applications.

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