CMTI TENDER DOCUMENT FOR 10 TON CRANE. Central Manufacturing Technology Institute Tumkur road, Bangalore

Transcription

1 CMTI TENDER DOCUMENT FOR 10 TON CRANE Central Manufacturing Technology Institute Tumkur road, Bangalore

2 Central Manufacturing Technology Institute Tumkur road, Bangalore Schedule of tender (To be filled in by the tenderer and returned duly signed along with enclosures to the Schedule of tender) SL. Schedule Details no. 1 Name of purchaser Central Manufacturing Technology Institute 2 Place of delivery Tumkur road, Bangalore Delivery Work must be completed within 5 months from the date of receiving order 4 Date of receipt As per advertisement of tender 5 Validity of tender Tender must be valid for a period of one month from the date of offer 6 EMD Rs in the form of DD drawn in favour of CMTI, Bangalore, payable at Bangalore. EMD of successful tenderer will be adjusted towards 5% retention money, which will be returned after satisfactory completion of warranty period. EMD of unsuccessful tenderers will be returned 7 Technical details Details as per tender document to be furnished. Additional details / features may be indicated separately along with cost indications 8 Price offered a. Technical bid along with DD should be enclosed in a sealed cover, super scribed Technical bid for 10 Ton crane b. Commercial bid should be enclosed in a sealed cover, super scribed Commercial bid for 10Ton crane 9 Payment terms Our payment terms are indicated in tender document 10 Transportation, loading, unloading and insurance The price indicated shall be inclusive of these items and separate claims shall not be considered. 11 Signature All the pages of tender should have seal and signature of tenderer 2

3 10 ton EOT crane Commercial bid Sl. no. Description Quantity/ Unit Rate/ unit 1 Design, fabrication, supply, One installation, testing, commissioning and handover of 10 ton capacity EOT crane: No. main hoist 10 tons span meters lift height - 6 meters Long travel 36 meters and other details as per enclosed specifications. 2 Supply, fixing and connection 36 of shrouded bus bar system meters. 3 Supply and installation of 36 rails for long travel. Length of meters. travel 36 meters. 4 Statutory certification of crane including supply of test loads L.S. SUB TOTAL 5 Excise % 6 Cess on excise % 7 Sales tax / VAT % 8 Cess % 9 Service tax % Total Rupees Amount Delivery Please specify number of weeks from the date of receiving our P.O. Installation, testing, commissioning and handover Number of weeks required from the date of delivery: Warranty: No. of months from the date of handover Payment terms: 25%Advance against bank guarantee 50% after commencement of erection Balance on completion and handover 5% of the total amount will be retained till completion of warranty period 3

4 Technical bid Design, manufacture, supply, installation, testing and commissioning of 10 ton capacity Electric over head traveling (EOT) crane as per specifications and details indicated below: General specifications for 10 ton crane Sl. no. Item Requirement / specifications 1 CRANE 10 ton capacity Electric over head traveling (EOT) The crane must be designed, manufactured, erected and tested in accordance with IS: and IS: STRUCTURE Double girder box type 3 Class of duty Class 3 as per IS Environment In door usage 5 Place of use CMTI, Bangalore 6 Application For machine building activity 7 Long travel On rails fixed over Gantry girders 8 Long travel rails CR 60 9 Travel Span Bay length Height of lift 10 Speeds LT CT Hoist 15.6 meters (approximate) 36 meters (approximate) 06 meters Normal speed Creep speed 20 mt. / min 4 mt / min 10mt. / min 2 mt. /min 5 mt. / min 1 mt. /min 11 Hoist 10 ton capacity 12 Speed control Creep speed of LT,CT and hoist by suitable gearing. VFD (Variable frequency drive) not preferred 13 Wheel base 4 meters minimum 14 Input power 415 V, 3 phase, 50 Hz 15 Wiring DSL system 16 Cables Flame retardant, low smoke, copper cables 17 Control panel Dust and vermin proof 18 Noise level 70db(A) 19 Alarm Required for all the movements LT, CT and hoist 20 Operation Movable pendent push button control 21 Safety a. Rubber buffers at both ends b. Fail safe brakes for Hoist 4

5 c. LED indication during crane movement d. All moving parts to be suitably guarded to prevent accident / injury e. Conform to latest electricity rules and regulations f. Cast iron parts, wood or combustible materials & bush bearings should not be used in any parts of crane. 22 Materials Defects in materials like fractures, cracks, blow holes, laminations pitting etc., are not acceptable. 23 Testing and certification As per relevant Indian standards. Testing and certification by Licensed inspector as per factory act. Tests should include the following in addition to tests specified by standards: a. Load test, overload test, Deflection test and movement test b. Speed test at rated speed and rated load c. Over load test: All crane movements to be tested at 25% over load to show capability of crane to handle overload without any difficulty. d. Brake test: Hoist brakes should be capable of holding the load while handling load at rated speeds. e. LT and CT brakes should be capable of stopping the crane within a distance of 10% of speed. f. Safety checks, interlock checks, smooth movement of hook and rope. 24 General arrangement drawing The technical offer should include a scaled drawing indicating Clearances, major dimensions, hook approach, lift location and direction of view, wheel sizes, wheel base, wheel load and spacing etc., 5

6 SL. no. Detailed specifications Item Details / Specifications Supplier s compliance a. Double box girder type, fabricated using good quality steel plates, channels and sections. b. Material sample to be supplied to us for necessary analysis and clearance. c. Good quality of welding to be adopted. d. Stress relieving of welded structure should be carried out. e. X ray, die penetration, ultrasonic tests as required are to be carried out and certified. f. LT and CT movement shall have suitable guard to push away any materials lying on rails 1 Structure /carriage / trolley 2 Rails a. Should have Manufacturer s identification & material designation b. Hardened to 200 HB c. Rails to be aligned parallel within tolerance of ±3.5 mm. d. Rail top surface to be leveled within ±0.2 mm/ meter. e. CR 60 for LT f. CR 50 for CT 3 Wheels a. Forged steel. b. 55C8 / 65C6 as per IS 2004, Sorbitized to 10 mm, Hardness BHN c. Alternately,40Ni6Cr4Mo3 or 40Ni10Cr3Mo6, volume hardened to BHN d. Ultrasonic testing with certificate e. Dia 320 mm for LT f. Dia 250 mm for CT 4 Rope a. Dia 18mm, 4 falls, 6X36 b. Galvanised ropes 5 Rope drum a. Seamless pipe b. Machined and stress relieved c. Single layer of ropes d. Flanged at both ends e. LH and RH rope grooves f. Groove radius more than rope radius by 1.5 mm 6 Brake a. Electro hydraulic thruster brakes 6

7 7 Gear boxes 8 Lubrica - tion b. Additional fail safe brake a. Designed for easy assembly and maintenance b. Rigid construction, neatly machined, stress relieved, oil resistant enamel painted c. Totally enclosed, leak proof d. Helical and spur gears, alloy steel, heat treated and ground e. Inspection covers and oil sight glass f. Oil splash lubrication g. Anti friction bearings a. Grease points are to be clearly visible and accessible b. Lubrication chart & drawing indicating type of lubrication, frequency and locations to be provided c. Oil lubricated areas should have sight glass to check oil levels, access for filling oil and drain plug for draining oil for cleaning 9 Hook a. Alloy steel, forged b. C shank type c. Hook should have swivel 10 Approach for maintena nce 11 Crane operation d. Spring loaded Latch to lock slings a. Guarded and safe walking arrangement to access electrical panel, gearbox, motors etc., b. Sufficient lighting to access and attend maintenance works c. All round hand railing at a height of 1.2 meters to prevent accidental fall from crane top d. Railing should have 38 mm dia pipes running at a height of.4 meters, 0.8 meters and at 1.2 meters e. Access and seating for repair of LT / CT motors & DSL system ELECTRICAL a. Movable pendant control 12 Motors a. Motors of adequate power to be selected b. Slip ring motors for hoist, CT and LT c. Squirrel cage motors for creep movement d. Proper earthing to be ensured 7

8 e. VFD drive not recommended f. As VFD is not preferred, motors of adequate power are to be selected to provide sufficient drive force in the entire range of speeds 13 Cables a. Flame proof cables b. Movable carrier / trolleys and chain for cable movement during crane operation c. Copper multi strand cables 14 Electrical panel a. Steel panel, neatly painted b. Dust and vermin proof c. Neatly wired with copper wires, suitably clamped and covered d. Numbering and identification of wires, relays, contactors, fuses, MCB s etc., e. CFL Lights inside the panel for maintenance purpose f. Hinged door g. Single phase preventer h. Relays for overload and time delay 15 Buss bar a. DSL system b. Copper / aluminium c. Separate set of collectors for to and fro 16 Limit switches a. Heavy duty limit switches, suitable for crane applications should be provided b. LT & CT to be provided with over travel switches at both ends c. Hoist to be provided with limit switch for top most and bottom most position d. One additional limit switch for top most position of main hoist 17 Alarm a. Clearly audible alarm while crane is in movement either LT,CT or hoist b. Any movement of crane should be indicated by LED s installed at suitable location c. BEEP sound when any limit switch is operated TESTING AND CERTIFICATION 18 Performan ce test a. Load test b. Overload test c. Deflection measurement d. Testing for smooth movement with 8

9 19 Documents, Certificates and manuals and without load e. Check up safety features f. Check up interlocks g. Hook and rope movement DOCUMENTATION a. Design documentation including calculations and analysis b. Two sets of final general arrangement drawings c. Assembly drawings of gear boxes, rope drum, crab, LT,CT and hoist movement etc., d. Two sets of operation and maintenance manuals e. Part drawings with technical details f. Electrical drawings and technical details g. Spare part list with part no. / specification h. Test certificates & warranty certificates of motors, gears, ropes, bearings, gear boxes, pulleys, wheels, hook etc., i. Soft copy of manual and drawings in CD form TOOL KIT 20 TOOLS a. A set of tools required for maintenance of crane should be supplied free of cost. SPARES 21 Spares a. Spares required for one year of crane usage should be supplied free of cost Sl. no. Accepted make of materials Item Make 1. Bearings SKF / FAG / TIMKEN 2. Brake SPEEDAGE / EMC/ SPEEDO CONTROL 3. Cables FINOLEX / LAPP/POLYCAB 4. Contactors SIEMENS / L&T 5. Contactor coil SIEMENS / L&T 6. DSL system STROMAG / Sushil engg / Ganesh/ Silver line 7. Gear box SHANTI / RADICON 8. Hook KE / ESOOFALI KARACHIWALA 9

10 9. Limit switch KAYCEE / SIEMENS / SPEEDAGE/Speed o control 10. MCB SIEMENS / HAVELLS / LEGRAND 11. Motors SIEMENS / ALSTOM / GEC 12. Paint synthetic enamel ASIAN / NEROLAC 13. Push button switches SIEMENS / C&S / SCI 14. Rails TATA / SAIL / JINDAL 15. Relays SIEMENS / L&T 16. Single phase preventer HAVELLS / C&S 17. Steel channels, angles, pipes TATA / SAIL / JINDAL/ESSAR etc. 18. Transformers IS APPROVED 19. Wire rope USHA MARTIN 20. Wires, cables FINOLEX / POLYCAB / LAPP 21. Worm reducer GREAVES TERMS AND CONDITIONS 1. The crane should conform to relevant Indian standards. 2. The crane should be designed and built for safe operation. 3. The crane should meet stipulations of Statutory authorities like Factories inspectorate, central electricity authority etc. 4. The crane should be designed for long life and reliable service. 5. The crane should be designed, built and installed with necessary precautions and safety. 6. General specifications are indicated. Please contact HOD(TPM) for any clarifications. 7. The crane building, erection and commissioning works should be carried out by qualified and skilled workmen who are covered under ESI. 8. Qualified and experienced supervisors should be employed to supervise the works. 9. While carrying out the works, care must be taken to protect personnel working / moving in the vicinity. 10. If any damage is caused to Institute property, the same should be rectified free of cost. 11. The crane should be designed with appropriate Factor of safety for usage at maximum load and speed conditions. 12. Instructions for safe crane operation should be indicated at suitable locations to caution the operators / users. 10

11 REFERENCES Sl.no. Item Standards reference 1 CRANE IS 807 IS 3177 IS Accuracy requirement and IS 9373 measurement 3 CONTROLS IS WHEEL SIZE IS 1136, IS WHEEL MATERIAL IIS 2004 / IS RAILS IS LOAD DESIGN IS to IS Wire rope selection IS 2266, IS 3973, IS 6954, IS Condition monitoring IS HOOK IS 3815, IS5749 and IS GEAR BOX IS WELDING IS 822, IS