Rate Analysis of Nala Screen Spare Parts

Chain Pocket for Mechanical Screen – SS316: Providing, supplying, transporting and fixing complete chain pocket suitable for existing mechanical screen, fabricated from SS316 stainless steel, minimum 8 mm thick plate/strip, suitably cut, formed/bent and fabricated to required profile and dimensions matching existing screen chain assembly, including zig-zag/front-side profile as required, necessary drilling, fasteners, fitting, alignment, installation, labour, tools & tackles and all incidental charges complete.

Main Screen Chain – SS316: Providing, supplying, transporting and fixing complete main screen chain suitable for existing mechanically operated screen, fabricated from SS316 stainless steel strip/sections of minimum 5 mm thickness, compatible with existing chain pockets, sprockets and drive arrangement, including fabrication/joining, fasteners, fitting, alignment, tensioning, installation, labour, tools & tackles and all incidental charges complete.

Conveyor Belt Assembly: Providing, supplying, transporting, erecting and commissioning complete electrically operated conveyor belt assembly for conveying screened material, comprising MS fabricated frame and supporting stand, epoxy painted, MS zinc-plated rollers, 2-ply nylon-reinforced rubber conveyor belt approximately 7 mm thick and 600 mm wide, length approximately upto 3000 mm or as required , height approximately 400 mm, belt speed approximately 9 m/min, complete with pulleys, bearings, supports, guards, drive arrangement, geared motor, coupling, fasteners and accessories, including installation, alignment, testing and commissioning complete.

Control Panel for Screen/Conveyor: Providing, supplying, transporting, installing, testing and commissioning suitable electrical control panel for operation and protection of screen/conveyor system, complete with suitably rated incomer and outgoing feeders, MCCB/MCB, contactors, overload relays, control circuit, start/stop push buttons, selector switches, indication lamps, terminal blocks, internal wiring, busbars, cable glands, enclosure, earthing arrangement and all necessary accessories, complete as required.

Screen Servicing / Minor Overhauling: Providing labour, tools, tackles and consumables for complete servicing of existing mechanical screen, including inspection, cleaning, greasing/lubrication, checking of chain, sprockets, bearings and drive components, resetting and adjustment of chain tension and alignment, tightening of fasteners, minor adjustments/rectification and trial operation, complete as required. Replacement of major components shall be excluded and paid separately.

Screen Drive Electric Motor: Providing, supplying, transporting, installing, testing and commissioning suitable 3-phase squirrel-cage induction motor for mechanical screen drive, TEFC construction, Class-F insulation, S1 continuous duty, minimum IP55 protection, suitable for 415 V, 3-phase, 50 Hz supply, IE2 or better efficiency, with suitable power/output rating matching existing screen drive, complete with terminal box, fan, bearings, mounting arrangement and accessories.

Screen Drive Gearbox: Providing, supplying, transporting, installing and commissioning heavy-duty worm reduction gearbox suitable for mechanical screen drive, reduction ratio approximately 60:1 or suitable for existing drive arrangement, adequate torque capacity for continuous operation, compatible input/output shaft and mounting arrangement, complete with housing, shafts, bearings, seals, lubrication and all necessary accessories.

Conveyor Drive Electric Motor: Providing, supplying, transporting, installing, testing and commissioning suitable 3-phase squirrel-cage induction motor for conveyor belt drive, TEFC construction, Class-F insulation, S1 continuous duty, minimum IP55 protection, suitable for 415 V, 3-phase, 50 Hz supply, IE2 or better efficiency, with suitable power/output rating matching conveyor drive requirement, complete with terminal box, fan, bearings, mounting arrangement and accessories.

Conveyor Drive Gearbox: Providing, supplying, transporting, installing and commissioning heavy-duty worm reduction gearbox suitable for conveyor belt drive, with reduction ratio approximately 60:1 or as required to achieve specified conveyor speed, adequate torque capacity for continuous operation, compatible input/output shaft and mounting arrangement, complete with housing, shafts, bearings, seals, lubrication and all necessary accessories.

Hopper for Screened Material – SS316: Providing, supplying, transporting and installing hopper for collection/discharge of screened material from mechanical screen, fabricated from SS316 stainless steel sheet minimum 3 mm thick, suitably cut, folded, welded/bent to required dimensions and profile matching screen/conveyor arrangement, including necessary supports, stiffeners, brackets, fasteners, fixing, alignment, finishing, labour, tools & tackles and all incidental charges complete.