Operation and maintenance of Multiple Slipway and Old Slipway for the period of one year (2026-27)

Operation for slipping of vessel on the slip 1, 2, 4 & 5 (excluding center slip). Shifting the trolley to the required slip lowering the cradle on the trolley and side hauling the trolley with cradle to central slip and then lowering the empty cradle to required position for slipping the vessel. Thereafter hauling the cradle with vessel into the trolley pit and side hauling the trolley to required slip and hauling up the cradle on the top of the slip. The operation is including hauling the main winch on side ropes, shifting the pulley block etc., including all labour cost, GST, labour welfare cess but excluding the hire charges of winches with operator and the electric supply which will be supplied by the department on free of cost.

Operation for Unslipping of the vessels on the slip 1, 2, 4 & 5 (excluding the center slip). Shifting the trolley to the required slip, lowering the cradle on the trolley and side hauling the trolley with cradle to the central slip and then lowering the cradle to the required position for slipping the vessel. Thereafter hauling the cradle with vessel into the trolley pit and side hauling the trolley to required slip and hauling up the cradle to top of the slip.The operation is including hauling of the main winch on the side rope, shifting the pulley block etc., including all labour cost, GST, labour welfare cess but excluding the hire charges of winches with operator and electric supply which will be supplied by the department on free of cost .

Operation for slipping of vessel on the center slip/Old slipway/shifting of empty cradle as per DSS requirement. Shifting the trolley to required slip lowering the empty cradle to the required position for slipping the vessel. Thereafter hauling the cradle with vessel up to the top of the center slip. The operation includes hauling the main winch and side hauling winch, wire rope fastening to the cradle hook tying the slip sling ropes to the trolley shifting the pulley blocks etc., including all labour charges, GST, labour welfare cess but excluding the hire charges of winches and electric supply which will be supplied by the department on free of cost.

Operation for Unslipping the vessel on the center slip/Old slipway/shifting of empty cradle as per DSS requirement. Shifting the trolley to center slip lowering the cradle with the vessel in the trolley and then lowering the cradle with the vessel into the slipway approach for launching the vessel hauling back the trolley cradle to the center slip or on the approach, as required. The operation includes hauling the main winch and side hauling the winch wire rope fastening to the cradle hook tying the sling ropes to trolley shifting the pulley blocks etc including all labour charges, GST, labour welfare cess but excluding the hire charges of the winch and power supply, which will be supplied by the department on free of cost.

Scrapping, chipping and cleaning the steel surface of Slipway Cradle and applying one coat of Zinc chromate/ red oxide primer on slipway Cradles and two coats of synthetic enamel black paint on Cradles including cost of all labour charges, brushes, tools and plants, scaffolding arrangements, GST, labour welfare cess,including cost of primer, synthetic enamel paint, thinner etc., complete

Making wire rope sling of 32mm or 40mm dia by splicing on either ends of each slings as required, for slipway operation including all labour charges, cost of all minor tools, GST, labour welfare cess etc., but excluding the cost of wire rope which will be supplied by the department on free of cost.

Changing wire rope (Old/New) about 250 Rmtr. of 58 to 60 mm dia. rope at Multiple Slipway at Main Hauling winch of 60 Ton capacity, including all labour charges, cost of minor tools, GST, labour welfare cess, etc., but excluding cost of wire rope which will be supplied by the department on free of cost, the rate includes the cutting of wire ropes from the rolls received from the stores/site

Changing of wire rope (Old/New) at Multiple Slipway from the side hauling winch drum of 60 Ton Cap., cradle end through bottom pulley block (about 260 Rmtr.) 38 mm or 40 mm dia wire rope in slipway including cost of all labour charges, minor tools, GST, labour welfare cess, etc., but excluding the cost of wire ropes, which will be supplied by the department on free of cost. The rate includes the cutting of wire ropes from the rolls received from the stores/site

Changing of wire rope (Old/New) at Multiple Slipway (Centre Slip) from the side hauling winch to cradle bottom through the pit pulley block (about 190 Rmtr.) 32 mm or 40 mm dia. wire rope in slipway including the cost of all labour charges, minor tools, GST, labour welfare cess etc., but excluding cost of wire ropes, which will be supplied by the department on free of cost. The rate includes, cutting the wire rope from the rolls received from the store/site

Changing of side hauling winch Multiple Slipway to pit trolley sling (90 Rmtr. or 40 Rmtr. length) 32 mm or 40 mm dia wire rope for shifting of trolley to the required slip including cost of all labour charges, minor tools, GST, labour welfare cess, etc., but excluding the cost of wire ropes which will be supplied by the department on free of cost. The rate includes cutting the wire rope from the rolls received from the store/site