bids are invited for boq total quantity : 1--1 coal crusher for input size < 250 mm jaw crusher ( single toggle jaw ) : detail specification : i ) confirming to latest version of is 436 ( part 1 / section1 ) ii ) feed size- <250mm dry coal / coke iii ) product size-<50 mm iv ) capacity – 3000 kg / hour ( approx. ) v ) jaw gap adjustment between 40mm and 60mm vi ) body, bearing house, swing jaw holder, v-pulley & fly wheel guard: made of steel fabricated. vii ) fly wheel, v-pulley, toggle plate: made of c.i. as per is 210, fg-200 or above viii ) eccentric shaft: made of en-8 or superior ix ) jaw plate made of manganese steel as per is-276, gr-1 or superior with test certificate- three ( 03 ) sets, one fitted with machine and two spare set with each machine. x ) all shafts must be fitted on suitable roller / ball bearing and toggle plate should mounted on eccentric shaft with gun metal / material superior than gun metal bushing. xi ) one set of final output sample collection unit. xii ) system should be designed in such a way that collection of smallest sample ( 50 kg ) is possible without loss and all crushing parts can be cleaned easily after processing of each sample without tools. xiii ) v-belt complete set xiv ) motor: 3 phase, 415v, with fully automatic suitable starter xv ) protection when any unbreakable material gets into feed. 2 coal crusher for input size < 50 mm jaw crusher ( single toggle jaw ) : detail specification: i ) confirming to latest version of is 436 ( part 1 / section1 ) ii ) feed size- <50mm dry coal / coke iii ) product size – <12.5mm iv ) capacity –750 kg / hour ( approx. ) v ) jaw gap adjustment between 9mm and 15mm vi ) body, bearing house, swing jaw holder, v-pulley & fly wheel guard: made of steel fabricated. vii ) fly wheel, v-pulley, toggle plate: made of c.i. as per is 210, fg-200 or above viii ) eccentric shaft: made of en-8 or superior ix ) jaw plate made of manganese steel as per is-276, gr-1 or superior with test certificate- three ( 03 ) sets, one fitted with machine and two spare set with each machine. x ) all shafts must be fitted on suitable roller / ball bearing and toggle plate should mounted on eccentric shaft with gun metal / material superior that gun metal bushing. xi ) one set of final output sample collection unit. xii ) system should be designed in such a way that collection of smallest sample ( 5 kg ) ) is possible without loss and all crushing parts can be cleaned easily after processing of each sample without tools. xiii ) v-belt complete set xiv ) motor : 3 phase, 415v, with fully automatic suitable starter xv ) protection when any unbreakable material gets into feed. 3 coal crusher for input size < 12.50 mm roller crusher: detail specification: i ) confirming to latest version of is 436 ( part 1 / section1 ) ii ) feed size- <12.5mm dry coal / coke iii ) product size – <3.35mm iv ) capacity – 750 kg / hour ( approx. ) v ) roller gap adjustment between 02mm to 06mm vi ) protection when any unbreakable material gets into feed. vii ) stands and base frame made of m.s. as per is 2062a. viii ) bearing housing, roller shell housing & v-pulleys made of c.i. as per is 210, fg-200 or above ix ) shaft made of en-8 or superior x ) roller shell made of manganese steel with rough surface finish as per as per is-276, gr-1 or superior with test certificate- three ( 03 ) pairs, one pair fitted with machine and two pairs, spares with each machine.