Repairing work in 04 nos feeder breakers in respect of AADOCM, Dhori Area

Amount

(i)Repairing work in 04 nos feeder breakers in respect of AADOCM, Dhori Area( (put zero in basic rate column)

A. Repairing of out bearing housing and seat and replacement of damaged bearing sleeve of crusher roll non drive end bearing and repairing of damaged flight ,replacement hopper gallery plate etc of black diamond (put zero in basic rate column)

Lifting of crusher roll with the help of hyd juck mannualy and support fixing .

NDE side bearing cover and plumber block removed with both side long stud ,nut removing and bearing removed by cutting piece .

Bearing seat sized melted chips cleaning bay gas gauging .

Worn –out bearing seat repairing by metal pilling with special jointing electrode and shapping by grinder mannualy as per size and inner dia 220 mm of bearing .

Worn-out plumber block bearing housing repairing as per size bearing outer dia 306 mm and width 90 mm with the help of multilayer metal filling by special type electrode etc.

Worn-out dust seal seat and other side worn-out color pairing with welding for buildup of material approx 26 mm dia and making shape in round o lathe machine.

Repairing of worn-out bearing cover plate by welding with special type electrode and machining as per size on lathe machine .

Providing & fixing H3044 bearing sleeve.

Providing & fixing bearing 23044.

Re-fitting of plumber block ,bearing sleeve, bearing, fitting of stud & nut with grease filling etc.

Providing & fixing new bearing block mounting bolt with nut and spring washer.

Damaged & worn-out T head bolt sprocket hole in oval shape repairing by metal fitting & shaping by grinding and worn-out portion welding work etc.

Straightening of bend flight with the help of hydraulic juck.

(a)Replacement of picks (old cutting & new fitting ) at primary crusher roll holder.

(b)Replacement of holder (old cutting & new fitting ) at primary crusher roll.

Worn-out & damaged hopper gallery plate cutting by gas and same size new plate cutting fitting

Worn-out & damaged hopper gallery plate cutting by gas and same size new plate welding work

B. Repairing of broken conveyor chain & replacement of bend & damaged flight assembly and worn-out picks & holder main crusher roll Of I/R make feeder breaker no 05 (put zero in basic rate column)

Dismantle of conveyor chain damaged link & flight from sprocket for repairing work.

Gas cutting and welding as required for cutting of bend & damaged link ,pin, bush, plate & flight pin and after repairing of conveyor chain & fitting of flight etc.

Dismantling of bend & damaged flight assembly from conveyor chain with locking by HT bolt, bending with the help of hammering ,pulling ,pushing etc.

Refitting of flight in conveyor chain with locking by HT bolt bending with the help of hammering ,pulling , pushing etc.

New model color type flight assembly pin new making and shaping by milling machine.

Providing & fixing 8 mm X 70 mm HT bolt.

Straightening of bend flight with the help of hydraulic juck.

Flight pin welding for locking by special type jointing electrode .

Drive end side bend tongue plate cutting and same size new cutting work

Drive end side bend tongue plate cutting and same size new welding work

After repairing of tongue plate, conveyor chain given tightened with the help of screw jack both side and stopper welding .

Replacement of damaged picks cutting and welding etc.

Replacement of damaged & worn-out holder with cutting by gas , face making with gas gauging ,welding with low hydrogen electrode with proper slope and direction.

50 mm thick plate of size 52’’x52’’ shifted portion near crusher roll repairing by cutting both side ,side plate & pan plate gauging of plate gas cutting work

50 mm thick plate of size 52’’x52’’ shifted portion near crusher roll repairing by cutting both side ,side plate & pan plate gauging of plate & low hydrogen electrode welding of both side base plate of 50 mm thick plate

C. Replcement of picks and holder and scrap cutting and fixing on discharge chute and bend flight strenghtening of ELCON make FB 04 (put zero in basic rate column)

Picks replacement by cutting & new fixing , locking & welding .

Holder replacement by old cutting & new fixing , locking 7 welding.

Fabricating of flight by tiscal plate , cutting by gas as per size &design and both side head providing and fixing with tiscal plate .cutting head fixing as per design and welding with special type jointing electrode with proper height and dimension.

Bend flight assembly straightening with the help of hydraulic jack .

Plate cutting from scrape dumper dala for replacement of damaged & worn-out discharge chute. (a)Gas cutting work in above job.

(b)Welding of side returning wall plate & angle with MS electrode.

(c) Welding of discharge chute plate with low hydrogen jointing electrode

D. Replacement of damaged picks including fabrication of hard metal picks and fixing on secondary crusher drum roll and drive shaft sprocket repairing etc of BWF make FB 01 (put zero in basic rate column)

Replacement of damaged & worn out holder with cutting &welding etc.

Replacement of damaged picks with cutting & welding of main crusher roll.

Fabrication of hard metal pick including hard facing and fixing on secondary crusher roll.

Drive shaft sprocket both end tooth point rectification as per required chain link pitch by hard facing welding method with point length increasing & shaping by grinding as required.

For drive shaft rectification link pin of the conveyor chain is opened and reattached by pulling the chain through the pulley block. Conveyor chain tight manually with the help of screw jack & both side stopper welding etc.

Main crusher roll motor dismantled from casing for replacement of damaged foot mounted base bolt & rubber spider .

Providing & fixing HT bolt ,nut with spring washer for motor flange. (22mm x 90 mm)

Providing & fixing HT bolt with spring washer for motor base . (24mm x 65 mm)

Providing & fixing rubber spider for fluid coupling SMD-9.

Fitting main crusher roll motor with main structure casing body all bolts given tightened with alignment checking etc.

(ii) Cutting and fitting of picks, holder and pad plate, rectification of secondary crusher roll drive pinion shaft and conveyor drive shaft of BWF make feeder breaker no. 1 in respect of AADOCM Dhori Area (put zero in basic rate column)

A. Picks and holder fitting with pad plate (put zero in basic rate column)

Making and fixing of pad plate on the drum 4’’ X 4”

Replacement of damaged & worn out holder (old Cutting & new fitting)

Replacement of damaged & worn out picks (old Cutting & new fitting)

B.Secondary Crusher drum roll drive pinion shaft assembly including dismantling & fitting work done at site.(put zero in basic rate column)

Drive shaft both end badly damaged and worn out bearing seat full round welding in multi layer and machining as per std. size of 22224E1K bearing.

Drive shaft both end damaged and worn out dust seal seat and bearing stopper full round multi layer welding and machining as per std. size.

C.I casting dust triple seal new making with casting, machining, grooving, drilling, tapping & bolting.

D/R Roller Bearing 22224E1K new provide and fixing.

Badly damaged & worn out bearing housing block assy. Back side dust seal seat, bearing cooler, Diameter increasing by welding method full round std. size & machining, polishing, alignment setting of LH & RH block.

Drive pinion shaft assembly complete assembling with bearing, housing block, bearing, cover, dust seal setting with proper alignment, adjustment & commissioning work done at site.

Build up of spur gear pinion after build up with low hydrogen type electrodes for metal filling on pinion teeth top and side portion and shaping by grinding machine manually as per size of drive pinion teeth and matching properly to each other pinion movement. And pinion teeth shaping and sizing by grinding machine.

Key new making for motor & gear box coupling.

Old & damaged coupling seat opening from secondary crusher drum roll drive motor & gear box and new seat fitting & setting work done at site.

C. Conveyor chain drive shaft assembly chain drive shaft assembly including dismantling & assembling work done at site.(put zero in basic rate column)

Drive shaft both end badly damaged and worn out bearing seat full round welding in multi layer and machining as per std. size of 23936 double row roller bearing size.

Drive shaft both end damaged and worn out false place/ bearing stopper full round multi layer welding and machining as required.

Drive shaft dust seal plate inbuild with drive shaft badly damaged and worn out seat rebuilding up multi layer full round & machining, dust sealing cooler increasing as required.

Double Row roller bearing no. 23936s.MB.C3 new provides.

Drive shaft bearing housing new M.S casting as per required measurement and casting, machining, bearing seat making, flange making, dust seal making with drilling, tapping, bearing step (stopper) making.

Drive shaft complete assembly including bearing housing bearing cover assembling, setting with proper alignment, adjustment, commissioning work at machine site.

D. Conveyor chain tail end shaft assembly of BWF(put zero in basic rate column)

Dismantling of all components from tail end assembly with complete rust & dust cleaning, checking.

Tail end both side damage and worn out bearing seat welding & machining as per std. size.

Tail end both side damage & worn out dust seal seat welding & machining as per std. size.

Tail end hollow shaft damaged and worn out sprocket seat repairing by welding & machining as per sprocket size and sprocket fitting by hyd. Press machine & alignment setting on lathe machine and after alignment full round triple layer welding by special jointing steel electrodes.

Bearing press ring & press plate new making as per required measurement.

Tail end shaft bearing no. 24024E1TVPB new provides.

Badly damaged & worn out bearing housing back side dust seal sea, bearing collar, diameter increasing by welding method full round as per required & machining, polishing, alignment setting LH & RH.

Tail end sprocket both end tooth point rectification as per required chain link pitch by hard facing welding method with point length increasing and setting by grinding as required.

Reassembling of tail end shaft assembly with all components and accessories.

Total impact of GST for the purpose of CTC

M/S CHIRAG ENTERPRISES

M/S SURAJ KUMAR