Accretion Demolition Machine is specially designed Crawler mounted Radio Remote controlled Robotic type machine for accretion cutting in Sponge Iron Kiln. JP ROK-10 is designed for accretion cutting inside 100 TPD Kiln, JP ROK-35 is for 350 TPD Kiln and JP ROK-50 is for 500 TPD Kiln. The machines are very compact in design to facilitate its trouble free entry in respective Kilns. However, the Boom reach is considered as per standard size of respective Kilns to cover maximum accretion cutting area in every step of the machine. JP ROK is capable of breaking accretion very fast causing significant reduction of Kiln shut down time as well as a very safe and hazardless device. The machine is associated with Remote Control device as well as Manual device for emergency purpose. The entire process is very simple and fast and thus Kiln downtime is less.