Double Girder Eot Crane

Double girder eot crane with hoist:
Double girder eot crane with hoist is composed by the main girder, end carriages, electric hoist with trolley, and electric control system. It is widely used in plants, warehouses or materials such as coil handling, container lift, railway workshop, paper mill and so on.
Double girder eot crane with trolley:
It is composed by the main girder, end carriages, winch with trolley, and electric control system.
we also have another special kind eot crane
Double girder crane with double trolley:
It is widely applied to loading and moving of normal weight in the fixed crossing space and also can work with various special-purpose hoists in special operations.
Advantage

• First class quality with competitive price
• Compact design, optimal use of the work areas
• Reasonable structure, favorable performance
• Control the load easily and position the load exactly
• Smooth starting and stopping
• Superior safety and reliability
• Low noise, commodious cabin and good view
•  Minimum and easy maintenance, excellent exchangeability for components
• Saving electricity

Safety feature

• Overload protection: if the material is over the capacity, the crane will give a sharp warning for protection itself.
• Emergency brake: the operator could start the emergegncy brake when meet some emergency cases duiring the working.
• Control Method: Room control or remote control to avoid any injure to the operation staff
• Main lifting motor: with thermal protection and current protection
• Hooks with latch
• Rubber buffers
• Protective earthing
• Crane switch and travel end switch
• Sub-assemblies characteristic are tested before assembly
• All cranes must be preassembled and tested before leaving factory and offer the certification of test.
• Limit switches:- To prevent over hoisting or over lowering of hook.

Underhung EOT cranes

Underhung EOT cranes, usually suspended from roof trusses, are mainly utilized inside pumping stations and small workshops, for maintenance purposes. The cranes are compact in design and construction, making them ideal for low buildings where maximum hook height is required.

When headroom is not an issue a top or under running configuration can be used with either the double or single girder bridge crane.

Briefly Introduction:

1.Designed and manufactured strictly according to national standards.
2.It’s a light-small kind fitted with single speed and double speed electric hoists.
3.Mainly used in the factories and warehouses with limited space.
4.It owns tight dimension, low building headroom, light dead weight and light wheel load.
5.A suspension runway is suspended from the roof of the building and is available only on lighter capacities, usually 10 tons or less.

Main parameter:

Lifting capacity:0.5 Tons upwards
Work duty:A3-A4
Lifting height: 0.5m — 80 m
span:3m — 25m
Working Temperature: -25~40°C

Workplace:
Underhung EOT crane is usually used to load and move goods at workshops and warehouses.

1.Construction industry
2.Cement industry
3.Steel Plants
4.Paper Plants
5.Chemical Plants
6.Dock Yards
Note: It is forbidden to work in environment with combustible, explosive and corrosive media. It can be controlled from the ground,remote control, ground and remote control etc.

Conventional Configuration:
1.Limit switches : for avoiding the hoisting and lowering of hook over acceptable limits.
2.Push Button Stations : constructed with extruded aluminium section to impart features of a lightweight structures and easy operation.
3.Soft Starts : smooth starting done by electric or electronic modules that are attached to long travel drives.
4.Maintenance Platform with Hand Railing:Underhung EOT crane is extended completely or partially beside the girder to allow easy maintenance and simple operation.
5.Shrouded Bus Bar Arrangement : for accommodating multiple cranes in one bay in a safe manner, this arrangement is fixed along the gantry.

What is the Features necessary for a High Quality EOT Crane

From a simple three-pulley manual crane to a fully automated mechanical device, the crane industry has experienced immense growth in all these years. With advanced engineering principles and state-of-the-art technology, manufacturers are able to present their customers with highly functional and efficient cranes of different types.

Today, this mechanical device is used to carry out large numbers of lifting operations in varied industries such as mining, transportation, and construction. To carry out all such operations safely and efficiently, it has become essential for the industry professionals to buy the best EOT crane or any other variant with thorough research and investigation.

There exists different kinds of cranes in the market and each one of them is based on different mechanical principles which further determine their nature of operation. Despite these differences in different types of cranes, there are a few features that each one of them must possess to qualify to be used in above mentioned industries. In fact, any individual who plans to invest money in any kind of crane, he must look out for the basic factors apart from the other necessary ones. The load limit of a EOT crane is the first feature that defines the quality of this category of mechanical device. The more the load limit, the better the performance of the equipment. Also, the value of load limit plays an instrumental role in carrying out lifting operations safely and thus one should never fail to see this feature at all.

Another feature that separates a high-quality crane from a normal one is its flexibility. A reputed EOT crane supplier and manufacturer would always design cranes that ensure precise positioning of the machines and other materials without facing any inconvenience. Along with placing the machines and other material at the exact location, the operation should be accomplished in a smooth manner too. Reputed crane manufacturers always design their machines in a manner so that lifting/placing of the machine can be done in a jerk-free manner.

Lastly, the feature that this type of lifting equipment must possess is high quality material. Each type of crane is manufactured using different kinds of materials and the quality of every particular element should be supreme.

Contractors and professionals should look out for all these features while buying a JIB crane or EOT crane. Once you are successful at finding the best manufacturer and supplier of cranes half of your stress vanishes away.

Single Girder EOT Crane

Single girder EOT crane is composed by the main girder,end carriages, electric hoist, and electric control system.
As it has firm structure, light weight and small size, it is widely used in factories.

Main Parameter:
Lifting capacity: 0.25~32tons
Work duty: Class C or D
Lifting height: 6~40mtrs
Power: 380v/50hz/3p or as customer request
Working Temperature: -25~40°C
Control type: pendant handle, or remote, or cabin

Safety feature

1.Weight overload protection device: If the material is over the capacity, the singlegirder EOT crane will give a sharp warning for protection itself.
2.Limit switch: To prevent over hoisting & over lowering of hook.
3.Top quality long time bearing polyurethane materials buffer.
4.Room control or remote control to avoid any injure to the operation staff.
5.Voltage lower protection function.

Special Features of modular cranes :
1.Light Weight and compact construction minimizing building loads and space saving
2.Suitable for Light and Medium duty workshop applications
3.All motors are TEFC with class F insulation
4.Heavy duty cast steel rope guide
5.Upper and Lower hook travel limit switch
6.Additional Counter weight operated over hoist limit switch as option
7.VVVF drives are available as an option
8.Compact and lightweight festoon cable system
9.Pendent and Radio remote control operation

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. The wheels are driven by motor gearbox units. A wire rope hoist is suspended below the bridge girder. The crane can be operated through pendent station hanging from wire rope hoist or through radio remote control. The pendent station can be made to move independent of hoist movement as per customer’s choice.
The wire rope hoist comprise of rope drum made from seamless tube. Grooves are machined on rope drum for proper support to the wire rope. Cast Iron rope band and guide prevents wire rope jumping from grooves. The hoisting drive arrangement comprises of motor coupled to an oil lubricated, spur/helical gearbox that in turn provides the motion to the rope drum. An electromagnetic fail safe brake prevents accidental lowering of load in the event of power failure. Limit switch is provided to prevent over hoisting of hook block. Additional limit switch can also be provided to prevent over lowering of hook block.
The cross movement of hoist is achieved through the movement of wheels supported on the beam / box flange. The drive to the wheels is provided through an electric motor-gearbox unit. Fail safe brake and limit switch are provided as additional features is so desired by customer.
Power supply to the wire rope hoist is through festoon cable system. The flexible cables are supported by cable hanger or cable trolleys that move on either taught wire or enclosed C track depending on customer choice.


The single girder cranes find their application mainly for capacities up to 20 MT and Span up to 25 Meters. These are commonly used for light and medium workshop duty applications. However, in rare cases the single girder cranes are also used for hot metal ladle handling as well as with grab bucket.

What is EOT Crane

EOT(Electric Overhead Traveling) crane, this is most common type of overhead crane, found in most factories. As obvious from name, these cranes are electrically operated by a control pendant, radio/IR remote pendant or from an operator cabin attached with the crane itself.

An EOT crane, commonly called a bridge crane, is a type of crane found in industrial environments. An EOT crane consists of parallel runways with a traveling bridge spanning the gap. A hoist, the lifting component of a crane, travels along the bridge. If the bridge is rigidly supported on two or more legs running on a fixed rail at ground level, the crane is called a gantry crane (USA, ASME B30 series) or a goliath crane (UK, BS 466).

Unlike mobile or construction cranes, EOT cranes are typically used for either manufacturing or maintenance applications, where efficiency or downtime are critical factors.

Application

EOT cranes are commonly used in the refinement of steel and other metals such as copper and aluminium. At every step of the manufacturing process, until it leaves a factory as a finished product, metal is handled by an EOT crane. Raw materials are poured into a furnace by crane, hot metal is then rolled to specific thickness and tempered or annealed, and then stored by an EOT crane for cooling, the finished coils are lifted and loaded onto trucks and trains by EOT crane, and the fabricator or stamper uses an EOT crane to handle the steel in his factory. The automobile industry uses EOT cranes to handle raw materials. Smaller workstation cranes, such as jib cranes or gantry cranes, handle lighter loads in a work area, such as CNC mill or saw.

Almost all paper mills use bridge cranes for regular maintenance needing removal of heavy press rolls and other equipment. The bridge cranes are used in the initial construction of paper machines because they make it easier to install the heavy cast iron paper drying drums and other massive equipment, some weighing as much as 70 tons.

In many instances the cost of a bridge crane can be largely offset with savings from not renting mobile cranes in the construction of a facility that uses a lot of heavy process equipment.

Single girder EOT Crane

Single girder top running cranes utilized for medium to heavy fabrication. These overhead cranes are ideally suited to low buildings, where a high hook lift height is required.

The top running configuration is best used in cases where the end user has issues with headroom. The most space efficient configuration is the double girder, top running crane system.

Lifting capacity: 0.25-20ton

Span length: 7.5-32mtrs

Lifting height: 6-30mtrs

Working duty: Class C or D

Power: AC 3Ph 380V 50Hz or according to client's requirement

Control mode: Cabin control/remote control/control panel with pendant line

Double Girder EOT Crane

The double girder top running overhead crane is a very heavy duty crane, normally used by larger manufacturers and steel warehouses.Double girder EOT crane are an excellent choice where high speeds and heavy service are required. Double girder cranes are highly suitable for applications requiring walkways, lights and other special equipment.

Lifting capacity: 5-500ton

Span length: 7.5-32mtrs

Lifting height: 6-30mtrs

Working duty: Class D

Power: AC 3Ph 380V 50Hz or according to client's requirement

Control mode: Cabin control/remote control/control panel with pendant line

Single Girder Underhung EOT Crane

Single girder underhung EOT cranes, usually suspended from roof trusses, are mainly utilized inside pumping stations and small workshops, for maintenance purposes. The cranes are compact in design and construction, making them ideal for low buildings where maximum hook height is required.

When headroom is not an issue a top or under running configuration can be used with either the double or single girder bridge crane.

Lifting capacity: 0.5-10 Tons

Span length: 3 m to 25 mtrs

Lifting height: 0.5 m to 80 mtrs

Working duty: Class C

Power: AC 3Ph 380V 50Hz or according to client's requirement

Control mode: Cabin control/remote control/control panel with pendant line