Fabrication of Intermediate evacuation platform at pit top and making of Head gear approach ladder (flat steps type) for both pits at Chora- 7n9 Pits Colliery

Amount

Item Description/ Heading

Cutting, welding, bolting & fixing/ erection of joist /girder (suitable size) for making main structure of sliding platform (intermediate evacuation position in condition of over-winding cage trapping),

Fabrication of sliding platform, ladder from pit bottom to cage top position & entrance gate with locking arrangement

Testing of Intermediate evacuation platform

Cutting of M.S. Angle (50mm x50mm x6mm) in shorter pieces for both Head gear approach ladder steps: Pit no. 7 -each length- 18", steps -40 nos. and Pit no. 9- each length 18", steps -35 nos.

Welding of short pieces of M.S. Angle on round rod of both Head gear approach ladder steps

Cost of consumable MS welding electrode

Cost of consumable Oxygen gas

Cost of consumable Dissolved acetylene gas

Cost of ISMB 200mmx100mmx5.7mm

Cost of ISMB 100mmx50mmx5mm

Cost of MS Flat(6mm)

Cost of ISA 50mm x 50mm x 6mm

Cost of ISA 37mm x 37mm x 3mm

Round Bar 25mm

MS Angle 37mm x 37mm

Total impact of GST for the purpose of CTC

KARMAKAR ENGINEERING WORKS (BID ID -1125616)