1.presentation box portal traverser

UNICRANE

UNIQUE INDUSTRIAL HANDLERS PVT.LTD.

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


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. (Central Organisaton Of Modernisation Of Workshop) called upon Unique to design and supply its first Traverser & awarded the contract of a surface type Traverser of 80 Ton capacity, installed at the Ajmer workshop of the Indian Railways.

ASSOCIATION WITH

INDIAN RAILWAYS


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.

UNIQUE INDUSTRIAL HANDLERS PVT.LTD .

COACH BEING WASHED THROUGH

UNIQUE 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.

Goliath Crane for handling Rails in a Railway Workshop


Two Cranes in tandem handling a Locomotive with lifting tackle also supplied by us.


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POSITIVE FEATURES OF UNIQUE PORTAL BOX TRAVERSER

• STRUCTURAL ADVANTAGES

• ENHANCED SAFETY

• IMPROVED PERFORMANCE OF COMPONENTS

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UNIQUE INDUSTRIAL HANDLERS PVT.LTD. why truss bridge in old era &

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

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STRESS FLOW DIAGRAM OF IDEAL TRUSS.TO UNDERSTAND THE IMPORTANCE OF CONCENTRICITY OF MEMEBRS AT EACH JOINTFOR 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 .

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COMPONENTS OF PORTAL TRUSS STRUCTURE.WHY PORTALS?

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.

UNICRANE

UNIQUE INDUSTRIAL HANDLERS PVT.LTD. why truss bridge in old era &

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

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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.

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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.

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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

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TORSIONAL RIGIDITY PORTAL BOX TRAVERSERDue 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

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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.

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UNIQUE INDUSTRIAL HANDLERS PVT.LTD.WHETHER PORTALS NECESSARY FOR BOX TRAVERSER?

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.

Electrical Panels installed inside the GirderLARGE SPAN BOX GIRDER GOLIATH CRANE WITH BOX GIRDERS CONNECTED AT ENDS

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UNIQUE INDUSTRIAL HANDLERS PVT.LTD.WHETHER PORTALS NECESSARY FOR BOX TRAVERSER? BOX GIRDERS ARE BUILT WITH TORSIONAL STABILTIY AGAINST LATERAL /

LONGITUDINAL FORCES & CANTILEVER LOAD OF LIGHT WEIGHT CABIN.

Electrical Panels installed inside the Girder55 T Box Girder Traverser at Bombardier Box Girder Traverser under Assembly

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UNIQUE INDUSTRIAL HANDLERS PVT.LTD.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 Girder80 T PORTAL Box Girder Traverser

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UNIQUE INDUSTRIAL HANDLERS PVT.LTD.ENHANCED SAFETY

OPERATING PERSONNEL ARE REQUIRED TO STAY OUT SIDE

THE TRAVERSER FOR SIGNALLING

TRAVERSER LONGITUDINAL FRAME BLOCK OPERATOR’S VIEW

OPERATING PERSONNEL NEED TO WALK FAST TO REACH THE OTHER END

BEFORE COACH REACHES THE END TO CONTINUE SIGNALLING

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UNIQUE INDUSTRIAL HANDLERS PVT.LTD.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

Multi track Traverser at Railway Workshop2 Track Portal Box Traverser also will have same level of unobstructed view / walk way clear

of hurdles


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UNIQUE INDUSTRIAL HANDLERS PVT.LTD.CENTRAL L.T. DRIVE WITH OPEN GEARS

L.T. DRIVE MACHINERY INSTALLED IN CABIN

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UNIQUE INDUSTRIAL HANDLERS PVT.LTD.CENTRAL L.T. DRIVE WITH OPEN GEARS

DRIVE TRANSMITTED THROUGH LONG SHAFTS SUPPORTED ON PEDESTALS & CONNECTED BY COUPLING – SYSTEM NEEDS MANY COMPONENTS –RESULTS IN INCREASED MAINTENANCE

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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 MACHINERY

IN CABIN ARE TRANSFFERED

TWIN DRIVE L.T. WITH GEARED MOTORS

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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.

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Vertical Open Conductor Angle Iron System

Unique now install compact shrouded copper DSL System resulting in reduced mast height - improved safety

Safe but has low conductivity

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PORTAL BOX 2 TRACK PIT TRAVERSER (REMOTE CONTROLLED)

WITH GENERATOR ON TRAVERSER PLATFROM (TO ELIMINATE USE OF DSL SYSTEM)

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PORTAL BOX TRAVERSER READY TO TRAVEL

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UNIQUE INDUSTRIAL HANDLERS PVT.LTD.WHEELS WITH ROTATING DON’T BREAKDOWN MAINTENACE. BOLTED COVERS PROVIDED FOR EASY ACCESS TO WHEELS.

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TWO PIECE TONGUE ADAPTABLE TO BRIDGE OVERLEVEL DIFFERANCE

RESULTING IN INCREASED STRUCTURAL LIFE

1.presentation box portal traverser

Documents

unique industrial handlers

unique sees

unique todesign

track portal box traverser

fabricated box

old era unicrane box

designing truss

traverser structure