Metso Minerals understands that competitive advantage is important to our customers. So, without sacrificing any of the features that have established the Barmac as the world's leading autogenous VSI brand, Metso Minerals is pleased to unveil the Barmac B9100SE Vertical Shaft Impact (VSI) crusher.

All the existing hallmarks of the Barmac still remain, with the new features being added to improve performance, reliability and serviceability.

The crushing chamber of the B9100SE has been considerably enhanced. Chamber geometry has been adjusted in order to improve the retention of build-up. This results in better protection of the crusher body meaning less maintenance is required.

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

Improvements have also been made to the top half of the machine. The Roof Lifter is now a standard option, and is something that can be retrofitted at a later date. The Roof Lifter has been developed to provide quick and simple access to the internal workings of the Barmac. This allows for rapid rotor and wear part changes and minimises down time while maximising availability.

The simple and reliable design of the roof lifter means only one person is required for operation and, when used in conjunction with a Barmac Service Boom, enables the removal and refitting of rotors without the need for a crane or other lifting equipment. Service to rotors can be commenced less than two minutes after rotation stops meaning time and maintenance costs are kept to a minimum.

Feed hopper components have been improved to further enhance the performance of the Barmac's unique Cascade feed system, which improves energy transfer. In combination with other variables such as rotor diameter, speed and crushing chamber profile, this enhances power efficiency, reduces wear and provides an efficient means of controlling the grinding and crushing action in a Barmac to either maximise or minimise fines and product shape.

Other areas of the machine have been improved. Cable ducting facilities have been incorporated into the crusher body to facilitate the wiring of the VSI Operational Control System (VOCS) crusher protection and monitoring system. The VOCS is designed to provide the operator of a Barmac with constantly updated information on the operating condition of the vital mechanical components of the equipment. VOCS is a standard option on the Barmac.

The Barmac's motor mount and transmission structure has been modified to support larger motors enabling 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 in particularly tough applications. Laminated tips use the properties of different tungsten grades to not only increase impact resistance but also abrasion resistance. With the mixing and matching of different tungsten grades the tip can be tailored to various applications.

Since its introduction the Barmac VSI has been a proven producer of top quality aggregate products for asphalt paving, concrete aggregates and specification sand. It is ideally suited to crushing a wide range of metallic ores, aggregates or industrial minerals. The high velocity impact crushing achieved in a Barmac improves soundness and shape of stone, reduces product moisture and eases the screening task while producing superior products at a minimum cost.

This Special Edition (SE) VSI confirms Metso Minerals' commitment to the quarry, mining and mineral processing industries. The B9100SE is the first fresh model released in the Barmac 1100SE Series rock-on-rock VSI crusher range. It will soon be followed by special edition versions of the other machines in the range to give all of our customers the option from a full array of advanced Barmac autogenous VSI's.