Applications of Overhead Cranes

There are many different varieties of cranes available in the market. But out of all those, the Overhead crane is the one that is used in most of the industries for many purposes. It is basically comprises of parallel runways with a traveling bridge spanning the gap. It has ahoist, the lifting componentwhich travels along the bridge. If the bridge is rigidly supported on two or more legs running on a fixed rail at ground level.

The most common application of this mechanical assistant is in the steel industry. At every step of the manufacturing process, until it leaves a factory as a finished product, steel is handled by it. Raw materials are poured into a furnace by crane, hot metal is stored for cooling by an overhead crane, the finished coils are lifted and loaded onto trucks and trains by overhead crane, and the fabricator or stamper uses giant to handle the steel in his factory. The automobile industry uses them for handling of raw materials. Smaller workstation cranes handle lighter loads in a work-area, such as CNC mill or saw.

Almost all paper mills use them for regular maintenance requiring removal of heavy press rolls and other equipment. They are used in the initial construction of paper machines because they facilitate installation of 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. The above described are some of the important uses of overhead cranes.

Qualifications required for Chain Hoist for Operation

Whenever any machine is to be used efficiently, it is very important to possess proper know how for it. This is equally applicable in the operation of Chain Hoist too. If any unqualified person is allocated to operate it then there are chances of mishap and loss to life and property too.

There should be a rule which only allows the designated and appropriately qualified personnel are allowed to operate them. The properly qualified personnel can operate the equipment safely which shall thereby can extend the equipment’s service life and reduce costs by avoiding potentially hazardous operations. The physical and mental condition is equally important along with sound technical knowledge.

The following are some of the points that are to be kept in mind while choosing the workers for this domain:

·         They must have normal hearing, vision, and depth perception.

·         It is not advisable to operate a crane or hoist if they have a known physical condition that would prevent them from acting quickly in case of an emergency.

·         Operators who are taking prescribed medication should make sure that the medication will not impair the ability to operate cranes and hoists safely.

·         Use of alcohol or drugs is strictly prohibited in the workplace. If you suspect an operator’s ability to be impaired for this or any other reason, notify a supervisor immediately

For the knowledge sharing purpose training programs should be organized along with some practical sessions. The employees shall greatly benefit from crane and hoist training. The employees should be cautious and not use homemade, modified, unrated, or in-certified equipment. There should be an inspection done on timely basis to know about the status of the operators’ knowledge about Chain Hoist.

Ways to maintain Chain Hoists

Any device that you use needs to be looked upon regularly otherwise it shall not give the optimum level of performance as it is expected to give. The same goes for the ChainHoist and so different points to be kept in mind for the maintenance of it are discussed here.

The following are the points to be kept in mind while using it and mainly during its maintenance:

1. Whenever any new installation or overhauling is done, there should be first trial run and only after that it should be used actually.

2. In normal use, should be carried out prior to 125% of rated load, lifting off the ground about 100 mm, 10-minute static load test and check whether it is normal. 

3. Dynamic test is based on rated load weight, lift and move around for repeated testing, test check the mechanical transmission parts, electrical parts and connecting parts are normal and reliable.

4. In use, the absolute prohibition of the environment is not allowed and more than rated load and nominal closing hour number (120) of cases.

5. In the use of specialized personnel must inspect hoist regularly, found that failure to take timely measures, and carefully recorded.

6. Chain retirement criteria should be decided and strictly followed.

7. Chain oil should be used when a hard brush or small piece of wood is prohibited by hand to direct the work of the rope is oil.

8. The use of worn out parts should be given special attention and change should be made immediately.

There should be also a committee that is responsible for checking this, else it shall create mishaps.

Importance of outriggers in parts of Crane

On the whole the crane comprises of many Crane Parts and their description is outlined here in brief. The prime use of it is to carry or rather move heavy load from one destination to other. It is one of the very commonly used mechanical assistants.

As they are used to lift heavy loads to tall heights so it is important that the truck be completely stable during the lifting operation. The tires donot offer the stability needed, so the truck employs outriggers that act as balances to keep it from leaning too much to one side or the other. They use hydraulics to lift the entire truck, tires and all, off the ground. They are basically comprised of the beam, which is the leg and the pad, which is the foot. Sometimes, "floats" are placed under the pad to dissipate the force of the crane and the load over concrete or pavement. Floats are usually wood planks that are lined up to create a base that is larger than the pad itself.

The outriggers are only one mechanism used to balance the crane during lifting operations. There are also detachable counterweights that can be placed on the back of the crane on the underside of the cab. These counterweights prevent the crane from tipping forward during operation. The amount of counterweight needed for a particular lift is determined by the weight of the load, the radius of the boom and the boom's angle during operation. The 70-ton Link-Belt truck crane has counterweights that come in 4,000-pound sections. The counterweights are only used during lifts; they have to be removed before the truck can be driven. Thus it clear that the backbone of the Crane.

Applications of Overhead Cranes

Out of all the different types of cranes, the overhead cranes are the one that is used in most of the industries. It is also called as the Bridge Crane. It 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, then it is called as gantry crane.

The most common application is in the steel industry. At every step of the manufacturing process, until it leaves a factory as a finished product, steel is handled by it Raw materials are poured into a furnace by crane, hot steel is stored for cooling by the bridge crane, the finished coils are lifted and loaded onto trucks and trains by it and the fabricator or stamper uses an it to handle the steel in his factory. The automobile industry uses overhead cranes for handling of raw materials. Smaller workstation cranes handle lighter loads in a work-area, such as CNC mill or saw.

Almost all paper mills use bridge cranes for regular maintenance requiring removal of heavy press rolls and other equipment. The bridge cranes are used in the initial construction of paper machines because they facilitate installation of 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. It has been a boon for the manufacturing industries. For more details please visit https://www.aceworldcompanies.com/

Introduction to Chain Hoist : Everything You should Know about Chain Hoist

According to the dictionary, the device for lifting and raising heavy or cumbersome objects is called as the hoist. It is the member of the crane family. There are many different kinds of available in this category too. The most commonly used is the Chain Hoist. Theycan be of either the chain type or the wire rope type.

Common small portable hoists are of two main types, the chain and the wire rope or cable type. They may have a lever to actuate the hoist or have a loop of operating chain that one pulls through the block which then activates the block to take up the main lifting chain.

A hand powered chain hoist with a ratchet wheel is known as a "ratchet lever hoist" or, colloquially,”Come-A-Long". Going back in the history, the original hoist of this type was developed by Abraham Maasdam of Deep Creek, Colorado about 1919, and later commercialized by his son, Felber Maasdam, about 1946. It has been copied by many manufacturers in recent decades. A similar heavy duty unit with a combination chain and cable became available in 1935 that was used by railroads, but lacked the success of the cable only type unit.

The following are the features it offers:

·          Offered as hook suspension or with a range of push,

·          Mains contactors fitted as standard for increased safety

·          Complete electrical protection by low voltage control circuit

·          Seated protection from dust and water to IP55

·          Quiet and smooth hoist operation ensured.

·          Top hook fitted as standard

·          The heavy-duty 960-rpm. Brake motor features with adjustable  spring pressure

·          All units factory tested to 125% safe working load

·          Three phase 230-415V,50Hz units available

This was all about Chain hoist, if you want more details please visit https://www.aceworldcompanies.com/

Benefits of Using Rope Hoist

One of the very beneficial mechanical assistant that is widely used in the heavy industry is none other than the Rope Hoist. It is one of the several types of hoist that is available in the market. Here a rope is twined around the wheel for lifting up the load by the means of the hook. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium. The load is attached to the hoist by means of which the heavy load is a lifted by the hook.

The benefits of using it are as follows:

• ·         Using this product to lift heavy weights ensure that the weighted material is lifted easily without the requirement of extra manual efforts. A person is required only to operate it.
• ·         Carrying a material from one place to another is safe and sound. There are fewer chances of accidents in the premise by the use of this mechanism.
• ·         Using this product can also help in saving time. Manual lifting of heavy weights may not only be cumbersome but time consuming, as well.
• ·         Making use of them in order to lift heavy weights may ensure that the goods and materials remain safe and free from physical damage during the lift.
• ·         Since it is easy to find rope hoists of any size and weight in the market, it can be used to carry any type of weight with ease.
• ·         The price for rope hoists in the market varies according to its lifting capabilities and the type of rope used in the mechanism.
• ·         It is an advanced mechanism and can be relied upon for the accomplishment of the desired task. It makes use of complex scientific logic.
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The rope hoist has found its application in almost all the different types of industries.