REPLACEMENT OF BER EOT CRANES UNDER GE I RND PASHAN PUNE

Amount

Supply, installation, testing and commissioning of electrically operated, overhead traveling EOT crane of capacity 5 Ton, conforming to IS : 3177 (latest revision),with span 9.0 metres long(approx), height of lift 5 metres (approx), travel length 56 mtrs (approx), suitable for operation on 415 Volts, 3 Phase, 4 wires, 50 HZ supply, double girder box type, with necessary steel supporting structures with hoist speed 3.0 metres per minute, cross travel speed 10 metres per minute, long travel speed 15 metres per minute with micro speeds through VVVF drives of suitable capacities with control panel, power and controlling cables, confirming to relevant IS, controlled by pendent push button station with and including steel rope 12mm dia 4 Falls. Operation system hoist / cross travel/ long travel / electrically operated with pendent, Festoon System, complete all as specified and as directed.

Supply, installation, testing and commissioning of electrically operated, overhead traveling EOT crane of capacity 10 Ton, conforming to IS : 3177 (latest revision),with span 21.0 metres long (approx), height of lift 7 mtrs (approx), travel length 52 metres (approx), suitable for operation on 415 Volts, 3 Phase, 4 wires, 50 HZ supply, double girder box type, with necessary steel supporting structures with hoist speed 3.0 metres per minute, cross travel speed 10 metres per minute, long travel speed 15 metres per minute with micro speeds through VVVF drives of suitable capacities with control panel, power and controlling cables, confirming to relevant IS, controlled by pendent push button station with and including steel rope 16 mm dia 4 Falls. Operation system hoist / cross travel/ long travel / electrically operated with pendent, Festoon System complete all as specified and as directed.

Supply, installation, testing and commissioning of electrically operated, overhead traveling EOT crane of capacity 15 Ton, conforming to IS : 3177 (latest revision),with span 18.0 metres long (approx), height of lift 6 metres (approx), travel length 166 mtrs (approx), suitable for operation on 415 Volts, 3 Phase, 4 wires, 50 HZ supply, double girder box type, with necessary steel supporting structures with hoist speed 3.0 metres per minute, cross travel speed 10 metres per minute, long travel speed 15 metres per minute with micro speeds through VVVF drives of suitable capacities with control panel, power and controlling cables, confirming to relevant IS, controlled by pendent push button station with and including steel rope 20 mm dia 4 Falls. Operation system hoist / cross travel/ long travel / electrically operated with pendent, Festoon System complete all as specified and as directed.

(v) Brakes for all drives shall be Electro-Hydraulic Thruster brakes according to the application. (vi) Lifting Hooks- Hooks shall be shank type supported on anti friction thrust bearing and the sleeve pulleys shall be made out of malleable cast iron or fabricated, conforming to IS: 3815. (vii) Controls: The crane shall be controlled by pendant push button type . The main electrical components shall be suitable for indoor application conveniently located for easy maintenance. Standard protection devices for overload protection and short circuit protection shall be provided. (viii) All other incidental, Civil, Electrical and Mechanical works Notes :- 1. The subject cranes is meant for the purpose of handling small to medium components of engine assembly. 2. The department shall be responsible for providing suitably rated electrical outlet in the Main Electrical Control Panel/Main Distribution Board of the buildings. 3. All other works, electrical earthings and associated incidental and minor works shall be the responsibility of the contractor. 4. The details of RCC brackets, end plates etc shall be verified by the contractor and shall certify that these are sufficient and meets the requirement of his design.

5. The shop floor environment will be dust prone, humid, welding fume filled and ambient temperature going up to 50ºC. Weather conditions are tropical. Crane shall be kept in the normal shop floor condition without any temperature controlled enclosure / shop. Max. temperature variation is 25 deg Celsius in 24 hours.Ambient Temperature: 4º C - 50º C & relative Humidity: 55%. 6. Major Technical specifications of the crane are given below. These are to be complied with by the contractor/manufacturer. The parameters which are not specified are to be as per Contractors'/OEM's own design. The contractor shall submit following drawings, giving all design parameters and get the drawings approved from the Accepting Officer.

Gear & Gear Boxes Details: Gear Box should be of fabricated type duly stress relieved. Pinions made of En 24 and gears of En 18. Gears in all the Stages shall be helical in design and to be of machined, lapped and hardened Straight and helical gearing shall normally be used for all motions.Worm and bevel gears shall not be used. First and high speed reductions shall be through helical gears. All first reduction pinions and also the other pinions if feasible shall be integral with the shafts. All gears shall be of hardened and tempered alloy or carbon steel with machine cut teeth. Gear tooth shall be cut in metric module system. .Lubrication: Suitable lubrication system shall be provided for gear box, all rotating parts wherever applicable.

Rope Drum: Shall be of fabricated type stress relieved or seamless pipe. The circumferential weld joints shall be tested by 100% XRay quality. The size of drum shall be as per OEM. Wheel :Track wheels shall be of MS steel with casted phosper bronze at tread area and flange.Tread mean dia of wheel for cross travel shall be of forged steel and for long travel forged steel. Type of Coupling: Couplings shall be flexible geared Barrel type. No pin/bush/rubber type coupling to be used. Machining Operation: All mechanical mating surfaces and wheel seating areas are to be machined to the required finish and protected. Hoist Wire Rope Details: Fiber core confirming to IS: 2266. Mention Wire rope No. of fall -04 6x36 constructions with a minimum breaking load of 1770 N/MM SQ. Input Power Supply: Shall be 415 ± 10% Volts, 50 ± 3% Hz, 3 Phase, AC. Control Voltage: Shall be 110V AC

Motor Details: All the electric motors shall be of crane duty of appropriate rating, 415 volts, 50 cycles per second, 3 phase, AC, totally enclosed,The temperature rise should be accordingly to the limits specified in ISS-325. Motors shall be suitable for reversing frequent acceleration and mechanical breaking. All crane motors shall be totally enclosed with cooling arrangement. All electrical controls shall be with IP:65protection. Make:- Barat Bijlee/Crompton/Marathon/NGEF. Details of Brakes for all motions: Electro Hydraulic Thruster type to be provided to hold the mechanism in position as soon as the power supply is 'OFF' either accidentally or intentionally for all motions.

Wiring: All the panel wiring shall be done by using standard multicore Copper highly flexible, double insulated cables and of Butyl Rubber. Earthing for Electrical items in Crane: Shall be carried out as per IS. MULTICORE CABLES Multi core power and control cables suitably clamped to the crane structure shall be used. Suitable clamping glands shall be provided at both ends of each multi core cables. INSTALLATION The cable and wiring system for each motion shall be independent and common returns shall be provided. Main cable and control wiring shall be effectively separated. Cable runs shall not be installed in any place where they will impede the crane driver's view. The cable shall be easily accessible and shall not hamper the movement of persons on the crane.Make:- Polycab/ Finolex/ Asian/RR kable /Universal DSL : Shrouded Bus Bar Type GI 100A. Make: SAFE TRACK Electric Contactors: shall have SIEMENS / L&T /BCH & VVVF Drive- Yaskawa Trailing Cables: Trailing cables (Extra flexible having copper conductors only) shall be traveling on rollers moving on separate Tee Type Fitting parallel to Bridge. Girder for CT shall be supplied and Erected by supplier.

Limit Switches: Hoist shall be provided with rotary type limit switches. Limit switches shall be provided for both CT & LT. Two way lever type for CT both direction and LT both direction. Painting Instructions: (a) Painting: Before dispatch of the crane, the complete components covering structural, mechanical and electrical parts of the crane shall be thoroughly cleaned of all dirt, grease, scales rust and then given single coat of primer. Mechanical and electrical components shall be given an additional finishing coat of Synthetic Enamel paint as per manufacturer's instruction. The bright exposed part of the crane shall be given one coat of rust inhibitor. After erection the complete crane moving parts and electrical components shall be painted with two coats of Synthetic Enamel paint. The various components of the crane shall be painted in different colour as per the code of practice

Dismantling of BER EOT crane of any capacity complete including all accessories i.e. (Motor, Gear Box, Chain pully, Steel rope, Brake, VVF drive, Pendent push button with remote, control panel, cable, girder, lifting hook, bolts/nuts etc any item related to EOT from location and making good to the disturbed surface and depositing complete material at MES store yard all as directed by Engineer-in-Charge.

M/s. Tojym Steel Products

Dinesh Enterprises