Single Girder EOT Crane have only 1 No. Main Girder across the span. … It consist of Electric Hoist travelling on lower flange of Main Girder and not required rail for cross traveling. It consist of a crab mechanism travels above both girders run over cross travel rails with platform to maintain all parts of crab.
What is a single girder crane?
A single girder crane has only one bridge beam, and the hoist trolley operates or travels on the lower flange of the bridge girder. · A double girder crane will have two bridge beams, and the hoist trolley travels on rails, usually attached to the tops of the crane girder.
What is girder in EOT crane?
The EOT Crane moves over the rails placed on the top of crane runway or Gantry Girders. The crane mainly comprise of bridge girder made from rolled sections such as I beams / U beams or fabricated box section. The bridge girder is supported on two end carriages, each housing a pair of wheels.
What is crane girder?
A bridge crane is a type of overhead crane that includes two or more overhead runways built into the building’s support structure. Bridge cranes have different configurations and can be comprised of one or two beams—more often referred to as a single girder or double girder design.
How many types of EOT crane are there?
There are various types of EOT (electric overhead travel) cranes 1. Single Girder EOT Crane 2. Double Girder EOT Crane Single Girder EOT Crane – Sparkline manufactures and supplies a wide range of single girder EOT cranes in various configurations according to customer requirements.
What are the principal parts of an overhead traveling crane?
Category 2 and 3 Crane Components The principal parts of overhead traveling cranes are: bridge girders, end trucks, trolley with hoisting mechanism, and operator’s cab or pendant control. Critical Crane Components Careful repair and maintenance are essential to safe crane operations.
What is LT and CT in Crane?
LT motion : Long Travel Motion. CT motion : Cross Travel Motion. Bridge : the structural portion on which the trolley/crab moves. LT End carriage : Structure which houses Long Travel Wheels. CT End carriage : Structure which houses Cross Travel Wheels.
What is full form of EOT crane?
Electric overhead traveling crane or EOT crane is one of the most common types of overhead crane, or called bridge cranes, which consist of parallel runways with a traveling bridge spanning the gap.
How does EOT crane work?
EOT Crane Working Principle
1. … The ring gear of drum transmit driving force to drum set, then through wire ropes and pulleys drive crane hook up and down, so as to finish the lifting of the heavy objects up and down. 2. Transmission of crane Trolley traveling system: the driving force of crane trolley is from motor.
What is EOT crane PDF?
An E.O.T. crane stands for Electric Overhead Travelling crane. this is used for handling & moving a maximum specified weight of the components called capacity of the crane within a specified area.
Which motor is used in EOT crane?
While series DC motors consume more power than PMDC motors to produce their electromagnetic field, they’re powerful, efficient at high speeds and produce the most torque; hence, they are used for heavy duty winches. Shunt DC motors are used in constant speed applications, 18 such as reel drives.
What is the hook on a crane called?
A lifting hook is a device for grabbing and lifting loads by means of a device such as a hoist or crane. A lifting hook is usually equipped with a safety latch to prevent the disengagement of the lifting wire rope sling, chain or rope to which the load is attached.
What is span of Crane?
The crane span is the measured center-to-center distance between the runway beams. … An overhead crane’s span is essentially its width across the bay—or the measured center-to-center distance between the runway beams.
How many types of cranes are there?
Mobile. There are four principal types of mobile cranes: truck mounted, rough-terrain, crawler, and floating.
What is DSL in EOT crane?
Direct Supply Line (DSL) refers to Angle Iron bus bars, supported on insulators, arranged length wise, at a safe height, in open to provide electric supply to EOT (Electric Overhead Travel) Cranes.
What is Bay length of EOT crane?
Scope: Design, manufacture, Erection, Commissioning, Trial run and supply of 3 TON capacity electrically operated overhead travelling crane conforming to IS: 807, 3177 & 3938 tested to 25% overload with a span 18 meters, Lift 7.5 meters and bay length 28 meters and as per the detailed specifications in the annexure. E.