1.presentation Box Portal traverser

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We have built more than 24 traverser.
We have manufactured all type of traverser - Multi track Pit type, Multitrack Surfacetype. Two track Portal Truss Surface type, Two Track Two track Box Construction Pit type, Two Track Portal Surface type

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  • BOX TRAVERSER END VEIW AND ELEVATION
  • BOX GIRDERS being transported.
  • It is not possible to transport duly assembled truss bridge, so bolted connections provided. Site connection to be carefully done / welding completed after alignment. Error in alignment may result critical stresses in connections / decambering – raising a need to add line “Provision for Future adjustment of camber provided”
  • NOTICE THE CROSS BEAMS OF DECK ATTACHED BELOW THE LOWER CHORD OF LONGITUDINAL MEMBER. ALSO NOTICE THAT BOTH LOGNITUDINAL MEMBERS ARE CONTINUOUS MEMBERS.
  • Box traverser / panels inside one of the 280 t crane box girder
  • Box traverser / panels inside one of the 280 t crane box girder
  • Box traverser / panels inside one of the 280 t crane box girder
  • NOTICE THE CROSS BEAMS OF DECK ATTACHED BELOW THE LOWER CHORD OF LONGITUDINAL MEMBER. ALSO NOTICE THAT BOTH LOGNITUDINAL MEMBERS ARE CONTINUOUS MEMBERS.
  • 1.presentation Box Portal traverser

    1. 1. UNIQUE INDUSTRIAL HANDLERS PVT.LTD.UNICRANE Plant- I : E-77, MIDC, AMBAD, NASHIK Plant-II : E-66, MIDC, AMBAD, NASHIK Plant-III : GONDE DHUMALA Welcome to Unique Industrial Handlers Pvt.Ltd. Unique Industrial Handlers Pvt. Ltd. is now in the 28th year of its existence. We have more than 2000 cranes operating in all sectors of industry in India. Every year the Company adds to its vigour and dynamism. It continually improves its products and broadens its horizons. Adopting the latest trend and development globally, we bring innovative solution to build 2 Track Portal Box Traverser
    2. 2. UNIQUE INDUSTRIAL HANDLERS PVT.LTD. ASSOCIATION WITH INDIAN RAILWAYS UNIQUE ASSOCIATION WITH RAILWAYS COMMENCED IN 1984 & UNIQUE IS NOW AN ESTABLISHED SUPPLIER OF CRANES, TRAVERSERS & COACH WASHING PLANTS TO INDIAN RAILWAYS.Almost a decade ago, In its drive to modernize, C.O.F.M.O.W. (CentralOrganisaton Of Modernisation Of Workshop) called upon Unique todesign and supply its first Traverser & awarded the contract of a surfacetype Traverser of 80 Ton capacity, installed at the Ajmer workshop of theIndian Railways.
    3. 3. UNIQUE INDUSTRIAL HANDLERS PVT.LTD. EQUIPMENTS SUPPLIED UNIQUE UNVEILED INDIA’S FIRST COACH WASH PLANT.THE FIRST OF ITS KIND IN INDIA, AT FULL CAPACITY THIS PLANT CAN CLEAN UP TO EIGHTY COACHES A DAY.
    4. 4. UNIQUE INDUSTRIAL HANDLERS PVT.LTD . COACH BEING WASHED THROUGHUNIQUE HAS BEEN AN ARDENT SUPPORTER AND PARTNER TO THE INDIAN RAILWAYS FOR MORE THAN THIRTY YEARS.WITH PLANS TO INSTALL MANY MORE SUCH AUTOMATIC COACH WASH PLANTS. UNIQUE SEES THIS AS A BEGINNING OF A NEW PRODUCT FOR RAILWAYS.
    5. 5. UNIQUE INDUSTRIAL HANDLERS PVT.LTD .Goliath Crane for handling Rails in a Railway Workshop
    6. 6. UNIQUE INDUSTRIAL HANDLERS PVT.LTD .Two Cranes in tandem handling a Locomotive with lifting tackle also supplied by us.
    7. 7. UNIQUE INDUSTRIAL HANDLERS PVT.LTD.UNICRANE POSITIVE FEATURES OF UNIQUE PORTAL BOX TRAVERSER • STRUCTURAL ADVANTAGES • ENHANCED SAFETY • IMPROVED PERFORMANCE OF COMPONENTS
    8. 8. UNIQUE INDUSTRIAL HANDLERS PVT.LTD. why truss bridge in old era &UNICRANE Box bridge in modern era NOTICE THAT BRIDGE IS BUILT FROM STRUCTURAL MEMBERS BUILT BY RIVETTING & CONNECTED BY PINS A truss can be assembled from small easily handled and transported pieces & site can be pin connected or bolted. Additional stresses may develop – which can be minimized by careful realignment during assembly re-assembly
    9. 9. UNIQUE INDUSTRIAL HANDLERS PVT.LTD.UNICRANE STRESS FLOW DIAGRAM OF IDEAL TRUSS. TO UNDERSTAND THE IMPORTANCE OF CONCENTRICITY OF MEMEBRS AT EACH JOINT FOR DESIGNING TRUSS THE BASIC ASSUMPTION IS THAT ALL FORCES WILL BE CONCENTRIC AT EVERY JOINT SO RESULTANT FORCE AT EVERY CONNECTION IS ‘ZERO’ TOP CHORD IS IN COMPESSION AND BOTTOM CHORD ISIN TENSION .
    10. 10. UNIQUE INDUSTRIAL HANDLERS PVT.LTD.UNICRANE WHY PORTALS? COMPONENTS OF PORTAL TRUSS STRUCTURE. Portal consists of two column and cross beam rigidly connected, either by bracing or by a hunched welded, to sustain bending moment at the joints.
    11. 11. UNIQUE INDUSTRIAL HANDLERS PVT.LTD. why truss bridge in old era &UNICRANE Box bridge in modern era Difficulties encountered in RE-ALIGNING THE MEMBERS FOR REASSEMBLY AT SITE OF BOLTED STRUCTURAL MEMBERS OF TRUSS BRIDGE WERE resolved by now using welding technology FOR BUILDING LARGE BOX GIRDERS transported TO SITE IN ONE SINGLE PIECE - making installation work very easy ALONG WITH OTHER BENEFITs, discussed in next slide
    12. 12. UNIQUE INDUSTRIAL HANDLERS PVT.LTD.UNICRANE STRUCTURAL ADVANTAGES OF BOX GIRDERS CONSTRUCTION FOR TRAVERSER • IMPROVED TORSIONAL RIGIDITY WITH REDUCED CHANCES OF FATIGUE FAILURES • WIDE TOP & BOTTOM FLANGES ALLOW LARGE SPAN TO DEPTH RATIO, IMPROVING VISIBILITY (CLEAR VIEW TO) / COMMUNICATION BETWEEN OPERATOR / OPERATING PERSONNEL • BETTER APPEARANCE • TRANPORTATION POSSIBLE IN SINGLE PIECE It will be interesting to notice that TO TAKE BENFIT OF IMPROVED TORSIONAL RIGIDITY OF CLOSED BOX CONSTRUCTION, TRUSS BRIDGE WITH SPAN > 12M ARE NOW BUILT BY HOLLOW TUBES / LARGER SPANS BUILT BY USING FABRICATED BOX. BOX GIRDERS CONSTRUCTION IS MORE ATTRACTIVE FOR SPANS < 30M, IN VIEW OF BETTER APPEARANCE / CONVENIENCE IN TRANPORTATION & MINIMISED MEMEBRS RE-ASSEMBLY AT SITE.
    13. 13. UNIQUE INDUSTRIAL HANDLERS PVT.LTD.UNICRANE NOTICE USE OF HOLLOW BOX (TUBES) / BOX CONSTRUCTION FOR TOP CHORD & IMPROVED ACCESS FOR WHEEL MAINTENANCE SYSTEM NOT PREFERRED TO BE REPEATED BEACAUSE OF WALKWAY HURDLES, FRAME MEMBERS BLOCK VIEW OF OPERATOR & TOO MANY JOINTS / WELD FOR REASSEMBLY AT SITE.
    14. 14. UNIQUE INDUSTRIAL HANDLERS PVT.LTD.UNICRANE MAIN LIMITATIONS OF TRUSSED TRAVERSERS  HEIGHT OF DECK AT THE ENTRANCE OF TRAVERSER IS TO BE LIMITED – TO ALLOW THE COACHES TO ENTER TRAVERSER WITHOUT INTERFERENCE WITH TRAVERSER STRUCTURE. THIS RESULTS IN COMPARATIVELY WEAK PORTAL CROSS BEAMS / WEAK RIGID CONNECTION BETWEEN BEAM & VERTICAL POST.  RIGID CONNECTION OF DECK WITH BOTTOM CHORD RESULTS IN TRANSFFER OF HEAVY BENDING MOMENT TO TRUSS (AS PORTAL COLUMN BECOMES A PART OF TRUSS). THE LOAD GETS TRANSFFERED TO TOP CHORD AT SUPPORT POINT  DUE TO SIZE (HEIGHT) OF TRUSSED STRUCTURE IT IS NOT POSSIBLE TO TRANSPORT THE ASSEMBLED STRUCTURE. DURING RE-ASSEMBLY AT SITE MEMBERS MAY BE MISALIGNED DUE TO DAMAGE (BENDS) TO TRUSS MEMBERS (WHICH ARE COMPARATIVELY SLENDER) DURING THE TRANSIT. THIS RESULTS IN UNPREDICTABLE ADDITIONAL STRESSES
    15. 15. UNIQUE INDUSTRIAL HANDLERS PVT.LTD.UNICRANE TORSIONAL RIGIDITY PORTAL BOX TRAVERSER Due to the high torsional rigidity, box girders are a very convenient solution for Cranes and Traverser - subjected to lateral forces as a result of acceleration, braking or bumping of on the end stop. The advantage is associated with a higher natural frequency of torsional vibration of the deck avoiding an interaction with the fundamental mode corresponding to vertical vibrations (flexure mode). The risk of flutter instabilities is thus eliminated. Additional Torsional Load by cantilever Cabin
    16. 16. UNIQUE INDUSTRIAL HANDLERS PVT.LTD.UNICRANE WHY PORTALS FOR TRUSSED BRIDGE LONGITUDINAL TRUSSES ARE WEAK IN LATERAL DIRECTION. TO IMPART TORSIONAL STABILTIY AGAINST WIND / EARTHQUAKE / LATERAL LOADS DUE TO CANTILEVER CABIN, ACCELERATION & BRAKING OF MOVING BRIDGE AND BUMPING OF BRIDGE AGAINST END STOPS – PORTALS PROVIDED, WHEN BOTTOM CHORD IS COMAPRATIVELY WEAK / NEAR THE SUPPORT POINT OF LATERAL FRAME.
    17. 17. UNIQUE INDUSTRIAL HANDLERS PVT.LTD. WHETHER PORTALS NECESSARY FOR BOX TRAVERSER?UNICRANE AFTER CONSTRUCTING MORE THAN 400 BOX GIRDERS FOR CRANES (A MOVING BRIDGE), UNIQUE HAS ACQUIRED EXPERTISE IN DESIGN AND MANUFACTURING TO BUILD BOX GIRDERS WITH INNOVATIVE SOLUTIONS, UP TO 60M SPAN WITH TORSIONAL STABILTIY AGAINST LATERAL / LONGITUDINAL FORCES. LARGE SPAN BOX GIRDER GOLIATH CRANE Electrical Panels installed inside the Girder WITH BOX GIRDERS CONNECTED AT ENDS
    18. 18. UNIQUE INDUSTRIAL HANDLERS PVT.LTD. WHETHER PORTALS NECESSARY FOR BOX TRAVERSER?UNICRANE BOX GIRDERS ARE BUILT WITH TORSIONAL STABILTIY AGAINST LATERAL / LONGITUDINAL FORCES & CANTILEVER LOAD OF LIGHT WEIGHT CABIN. 55 T Box Girder Traverser at Bombardier Electrical Panels installed inside the Girder Box Girder Traverser under Assembly
    19. 19. UNIQUE INDUSTRIAL HANDLERS PVT.LTD.UNICRANE WHY PORTALS BOX TRAVERSER? PORTALS IMPROVES TORSIONAL STABILTIY AGAINST LATERAL / LONGITUDINAL FORCES OF MOVING BRIDGE WITH LARGE CABIN WITH HEAVY MACHINERY IN THE CABIN Electrical Panels installed inside the Girder 80 T PORTAL Box Girder Traverser
    20. 20. UNIQUE INDUSTRIAL HANDLERS PVT.LTD.UNICRANE ENHANCED SAFETY TRAVERSER LONGITUDINAL FRAME BLOCK OPERATOR’S VIEW OPERATING PERSONNEL ARE REQUIRED TO STAY OUT SIDE THE TRAVERSER FOR SIGNALLING OPERATING PERSONNEL NEED TO WALK FAST TO REACH THE OTHER END BEFORE COACH REACHES THE END TO CONTINUE SIGNALLING
    21. 21. UNIQUE INDUSTRIAL HANDLERS PVT.LTD.UNICRANE ENHANCED SAFETY Un-obstructed view to operator / clear hurdle free walkway (green strips) OPERATING PERSONNEL MAY CONTINUE TO WALK ON LEADING SIDE (GREEN STRIP OR ON TOP OF BOX GIRDER) CONVENINETLY WITH COACH & CONTINUE SIGNALLING
    22. 22. UNIQUE INDUSTRIAL HANDLERS PVT.LTD . Multi track Traverser at Railway Workshop2 Track Portal Box Traverser also will have same level of unobstructed view / walk way clear of hurdles
    23. 23. UNIQUE INDUSTRIAL HANDLERS PVT.LTD. CENTRAL L.T. DRIVE WITH OPEN GEARSUNICRANE L.T. DRIVE MACHINERY INSTALLED IN CABIN
    24. 24. UNIQUE INDUSTRIAL HANDLERS PVT.LTD. CENTRAL L.T. DRIVE WITH OPEN GEARSUNICRANE DRIVE TRANSMITTED THROUGH LONG SHAFTS SUPPORTED ON PEDESTALS & CONNECTED BY COUPLING – SYSTEM NEEDS MANY COMPONENTS –RESULTS IN INCREASED MAINTENANCE
    25. 25. UNIQUE INDUSTRIAL HANDLERS PVT.LTD.UNICRANE TWIN DRIVE L.T. WITH GEARED MOTORS COMPACT & MODULAR L.T. DRIVE A COMPOSITE UNIT WITH GEARBOX, MOTOR & IN-BUILT DISC BRAKE JUDIOUS SELECTION OF REPUTED & RELIABLE MAKE GEARED MOTOR ELIMINATES FAILURES / REDUCES MAINTENANCE & ALSO IMPROVES TORSIONAL STABILITY AS HEAVY MACHINERYIN CABIN ARE TRANSFFERED
    26. 26. UNIQUE INDUSTRIAL HANDLERS PVT.LTD.UNICRANE Vertical Open Conductor System Copper is efficient conductor of electricity. But it is dangerous from safety point of view – as broken wire with supply on may fall on personnel working around.
    27. 27. UNIQUE INDUSTRIAL HANDLERS PVT.LTD.UNICRANE Vertical Open Conductor Angle Iron System Safe but has low conductivity Unique now install compact shrouded copper DSL System resulting in reduced mast height - improved safety
    28. 28. UNIQUE INDUSTRIAL HANDLERS PVT.LTD.UNICRANE PORTAL BOX 2 TRACK PIT TRAVERSER (REMOTE CONTROLLED) WITH GENERATOR ON TRAVERSER PLATFROM (TO ELIMINATE USE OF DSL SYSTEM)
    29. 29. UNIQUE INDUSTRIAL HANDLERS PVT.LTD.UNICRANE PORTAL BOX TRAVERSER READY TO TRAVEL
    30. 30. UNIQUE INDUSTRIAL HANDLERS PVT.LTD. WHEELS WITH ROTATING DON’T BREAKDOWN MAINTENACE.UNICRANE BOLTED COVERS PROVIDED FOR EASY ACCESS TO WHEELS.
    31. 31. UNIQUE INDUSTRIAL HANDLERS PVT.LTD.UNICRANE TWO PIECE TONGUE ADAPTABLE TO BRIDGE OVER LEVEL DIFFERANCE RESULTING IN INCREASED STRUCTURAL LIFE

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