Indonesia: Use in andesite rock

In Tanjung Enim, Indonesia, the PT. Bukit Asam Tbk. company relies on the performance of its Kleemann MOBICAT MC 120 PRO and MOBISCREEN MSS 802 EVO plants. One of the largest state-owned quarry companies in Indonesia is keen to contribute to sustainable and environmentally friendly production using future-oriented technology.

PT. Bukit Asam Tbk. operates a state-run lignite mine, where the Kleemann plant train – consisting of jaw crusher and coarse screen – does not crush coal, but rather andesite. The crushed material is mainly used to repair the mine’s dilapidated roads and build new roads within the mine. A major challenge for mining is the location of the material at several sites throughout the mine as well as the frequent blasting. Both of these factors necessitate that the equipment can be moved flexibly. The mobile Kleemann machines offer all the flexibility needed to meet these requirements. “The ability to move the machines easily was a very important criterion for us,” explains Aditya Maulana Bainal from PT.

Maximising production with mobile equipment

A team consisting of the MOBICAT MC 120 PRO mobile jaw crusher in combination with the MSS 802 EVO mobile coarse screening plant was selected to maximise production in the quarry. The MC 120 PRO is used as a primary crusher, while the MSS 802 EVO mobile coarse screening plant is installed downstream and screens the material. “The machines are ideally suited to our needs and enable us to adapt production to changing conditions and requirements,” says the Sales Engineer of PT. Bukit Asam Tbk.

Optimum material processing and a good workflow

The initial results on site demonstrate that Kleemann’s flexible plants enable the andesite stone to be processed smoothly and efficiently. The machines also handle the special requirements of the material very well.

Many extras maximise plant efficiency

The MC 120 PRO’s many well considered details further increase efficiency. The hopper extension, for example, enables larger quantities to be collected and increases the hopper volume from 10 to 13 cubic metres. The hopper can be conveniently folded from the ground via remote control. Thanks to the independently vibrating double-deck pre-screen, the feed material can be screened effectively. The fine material is guided past the crushing chamber and discharged via the side discharge conveyor, which can also be folded hydraulically and remain on the plant during transport. The rock chisel, another option the jaw crusher is equipped with, can crush very large rocks in the feed material directly at the machine before they enter the crusher. Material bridging in the transition from the pre-screen to the crusher can be easily removed. Another advantage is that the rock chisel can also remain on the machine during transport.

Outstanding service throughout the introduction phase

The performance, flexibility and sustainability of the Kleemann plant are one thing. Another decisive success factor, however, was the close, in-depth support provided by the Kleemann service team. Kleemann service technician Alfred Hinterhofer spent two weeks on site to commission the machines and instruct those involved. Theoretical training as well as practical applications and test runs took place. Some 40 government representatives were on site for the acceptance inspection, who rigorously checked compliance with the contractual conditions. Alfred Hinterhofer was impressed with the coal mine and the many participants in the training programme. “It was a successful operation and we are delighted that our Kleemann plants can support yet another customer in their challenging work.”