Keestrack, the international specialist for mobile mineral processing, will illustrate its strong commitment to the Indian and South Asian aggregate and recycling industry at bauma CONEXPO INDIA 2018. Represented by Etrack Crushers, the company's Indian subsidiary, established in 2017, Keestrack will focus on its advanced electric drive concepts, offering huge savings for all contractors and offering operational advantages for larger multi-stage mobile plant lay-outs. In August 2018, construction started at Etrack's new manufacturing facility in Neemrana, around 100 km south of New Delhi.

At the exhibition, Etrack will highlight its full hybrid technology with the Keestrack B4e jaw crusher and the Keestrack H4e cone crusher. Both track mobile models represent the latest generation of diesel-electric Keestrack plants and provide 'Plug-in' operation without starting the onboard diesel.

The 44-tonne B4e is the midsize-all rounder in Keestrack's jaw range. Equipped with a double-deck vibrating pre-screen (2,300 x 1,000 mm) and a proven 1,100 x 700 mm jaw crusher unit (max feed size of 600 mm), it provides a capacity up to 400 t/h and perfectly suits various recycling applications or primary crushing solutions in quarrying or smaller mining operations. A productive operation and high-end product standards are guaranteed through the patented NSS release system and the automatic hydraulic gap adjustment, which continuously monitors plate wear. The B4e provides a detachable power module with a 212 kW onboard-diesel combined with a 225 kVA alternator. Positioned remotely from the plant, the running diesel engine and genset are well protected against dust and vibrations - when working 'plug-in', the whole power module can be removed and stored away. A 110 kW electric motor drives the crusher; a 55 kW e-motor/pump unit supplies the hydraulic drives for pre-screen, tracks, lifting cylinders and other hydraulic components. To optimise productivity, the B4e can be optionally equipped with a single-deck post-screen with recirculation conveyor.

With a capacity of 250 t/h in secondary crushing, the Keestrack H4e is the perfect match for the B4e. Here also, an optionally detachable power module (328 kW/330 kVA) supplies energy for the electric crusher drive (132 kW) and the separate 45-kW E-motor/pump unit for all hydraulic drives on the plant. The H4e features the KT-H4 cone crusher, adapted and supplied by a world-leading cone specialist. The fully automated unit provides a maximum feed size of 185 mm and allows, with a wide variety of concaves, a high flexibility in secondary or tertiary production of defined end fractions. To optimise production, the plant can be optionally equipped with a pre-screen with fines chute and with an efficient three-deck secondary screen module with recycling conveyor for closed-circuit processing. The large dimensioning of the hanging screen (effective area: 3 x 5.4 sq m) and large stockpiling capacities of the conveyors prevent bottle-neck effects in producing up to four highly defined quality end fractions.