Aggregate Production and Recycling Section For SBM Mineral Processing, Hybrid Continues ‘By Nature’

from Southeast 13, June 28, 2023

Wood Holds Late Spring Sale in Montgomery,Ala.

For almost 40 years, SBM Mineral Processing has been consistently using diesel-electric drive systems and is a supplier of cross-technological hybrids for trackmobile jaw and impact crushers from under 50,000 to 350,000 lbs. operating weight.

Due to their sophisticated drive concept, the JAWMAX and REMAX plants rank at the top of their respective machine classes regarding crusher dimensions and production output without making any compromises concerning their mobility between sites or on the site, the manufacturer said.

Homogeneous Concept for All Types of Machines

SBM pursues a homogeneous concept for all of its plants to ensure the significant benefits of diesel-electric drive systems in all power classes. Depending on the market region, this also includes a plug-in option that enables the all-electric complete operation of the plants via mains power or external generators.

In addition to significantly lower onsite emissions in terms of exhaust gases and noise, all-electric operation brings considerable operating cost savings, the manufacturer said.

Parallel to the expansion of its global sales activities, SBM is working at full speed to make the plug-in option technically available in important regions, such as the North American markets.

The centerpiece of all hybrid electrified SBM mobiles plants consists of a dieselgenerator-unit with emission-optimized Cummins diesel engines and directly flanged low-maintenance generators. The compact drive units are positioned outside of the dust-intensive machine zones.

As standard, the control cabinets are additionally overpressured and can be heated/airconditioned for extremely difficult operations. In optional plug-in operation, the plant is supplied by the grid or by alternative external power sources (gen sets) at the control cabinet — activation is easy and safe by simply switching the central master switch before starting the plant.

From this moment on the central SBM plant control system Crush Control automat- ically starts, monitors and controls the individual machine components during crushing operations. Depending on machine type and equipment (scalpers, discharge conveyors, additional screens, etc.), up to 20 electric motors with a power input of 750 W (sprinkling) up to 250 kW (crusher) are used in the

SBM plants.

The working hydraulics system (crusher gap setting, hydraulic cylinders, etc.) and the proportional traction drive are energized by two electrically operated pumping systems and circuits that are activated separately. This improves the energy footprint, for example by eliminating the unnecessary stand-by status of the track motors, and assures full functionality of the systems in all-electric operation.

In contrast to diesel-electric plants equipped with significantly more on-board hydraulics, SBM minimizes the oil quantities required on board to for example only 20 gal. compared to about 50 gal. respectively more than 160 gal. required by fully dieselhydraulic models in the 40-ton class.

Instead of using complex hydraulic pipings meaning high thermal losses resp. costly oil cooling, all other drive systems and appliances in SBM plants are connected via break-proof cables, which practically eliminates environmentally critical leaks and corresponding breakdowns, according to the manufacturer.

Without the detour via hydraulic control blocks, electric activation ensures continuous quick response of the various plant components and facilitates easy and simple adaptation of feeding rates, screening capacities, or frequency-converter-controlled “extras” such as the automatic dedusting of chutes.

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