Choosing the right wire rope hoist

It’s important to select the appropriate wire rope hoist for your task. Prior to making a decision, it’s critical to consider all of your options and gain a thorough understanding of the features, components, and specs of the hoist. Above all, you should be aware of the essential tasks that it must complete. When choosing, there are usually three key factors to take into account.

• Load Lifting Requirements

The requirements for load lifting are the most crucial item to keep in mind. How much weight is lifted on your site on average? It is recommended that you choose a hoist that can support loads greater than the minimal one, even though many hoists may fulfil this criteria.
When an unforeseen load rise occurs, high capacity hoists provide vital security, safety, and the capacity to carry much heavier weights if necessary. They also provide you with the assurance that your average loads won’t overtax the machinery, allowing you to finish the task worry-free. These hoists may also enable you to do your work more quickly without running the risk of damaging the equipment.

• Number of lifts

Consider how many lifts you’ll need the wire rope hoist to perform before choosing a lift. This is a crucial additional consideration since it may reduce your selections if your work requires you to execute very hard tasks. Different hoists may not be able to lift as much weight as others due to differences in the strength of their materials.
Choose equipment that can manage a lot of lifts if you know you’ll be putting a lot of strain on the apparatus or if there’s a risk you’ll need to undertake unforeseen or extra lifts. This not only protects you and other employees safe at work, but it also gives you greater flexibility should you need it.

• Future needs

It’s critical to plan ahead. You might save money up front by just purchasing the hoist that will satisfy your current needs, but you may end up paying more for a replacement later on. It makes sense to spend your money on a piece of equipment that will serve you well for many years to come in addition to fulfilling your immediate demands.
In addition to double checking your lift numbers and selecting a hoist that you know will serve you and your demands well beyond your immediate job, don’t forget to buy machinery that can manage higher load sizes than you may need.

Heavy lifting jobs are a good fit for an electric wire rope hoist. Heavy objects may be swiftly and easily lifted and moved by the machine. You can move objects more easily and effectively as a result. It helps you save a lot of labour and time, which lowers your working expenses. Electric models are beneficial for both large-scale and small-scale applications.

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What are Wire Rope Hoists?

Wire rope hoists consist of the wire rope drum, hook, control system, gearbox, and hoist motor apart from other components. They are able to move and lift heavy loads in both horizontal and vertical directions. By using an electric motor to drive the wire rope, the hoisting mechanism enables controlled weight lifting and lowering. Wire rope hoists come in a variety of configurations, including motorised and manual models. They all have comparable safety elements that are necessary for operational safety, regardless of kind.

Key Safety Features of Wire Rope Hoists

• To prevent overload

An overloaded wire rope hoist can cause mishaps and equipment failure, among other terrible outcomes. To prevent overloading, load limiters or overload prevention devices are installed on modern wire rope hoists. These devices monitor the load being hoisted and automatically stop the hoist when the load exceeds the predetermined weight limit. Load limiters not only prevent damage to the machinery but also safeguard persons and the surrounding area from potential dangers posed by overloaded hoists.

• Stop button for emergency

When stopping hoisting operations right away becomes required, wire rope hoists are equipped with an emergency stop button. This feature lowers the possibility of mishaps or injuries by allowing operators to quickly halt the lifting operation with the push of a button. The emergency stop feature is positioned for easy access, allowing operators to react promptly to any unanticipated circumstances.

• Control system

Precise control over the lifting process is necessary for safe and efficient operations. Precise and efficient lifting operations are made possible by modern wire rope hoist control systems. These control systems have features including variable speed control, soft start/stop capabilities, and smooth acceleration and deceleration that enhance operator control and load handling accuracy.
Operators can adjust the lifting speed of wire rope hoists to suit the needs of the load thanks to their variable speed control mechanisms. By enhancing operator control, this feature reduces the likelihood of crashes caused by sudden movements or illogical acceleration.

• Braking system

Effective braking systems are crucial to managing uncontrolled descents when employing wire rope hoists, as they can be exceedingly dangerous. To reduce this risk, contemporary hoists are equipped with anti-friction brakes. By preventing sudden drops that could result in accidents or damage to the hoisting system, the brakes ensure that the weight is safely suspended. The brakes are designed to engage automatically in the case of a power outage or while the hoist is not actively lifting, adding an additional layer of safety.

• Thermal protection

Electric wire rope hoist has the potential to generate heat during heavy-duty or extended operations. The hoist’s temperature is monitored by thermal protection devices, which prevent overheating that could damage the wire rope or destroy the engine. To ensure the hoist’s longevity and safety, the thermal protection system turns on and stops working when the temperature falls below a predetermined level. Thus thermal protection is one of the best safety measures in electric wire rope hoist.

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1.  Understand the product well:

To purchase the right product, it is important to understand the product well. Electric motors, gearbox, a rope drum with rope guides and a large wire rope coupled with a hook are integral parts of an electric wire rope hoist. Hoists are made in a way that they can carry heavy objects in hostile situations like stern heat produced during welding, furnaces, in an acidic atmosphere or over the burners. So, you have to state your requirements clearly before purchasing the hoist. There are wire rope hoist experts who provide accurate guidance to operators whenever required.

2. Purchase the right product:

There are different types of electric wire rope hoist available in the market. The key to purchasing the right hoist is not to compromise with the actual requirements for saving a few bucks. If the purchased product is not up to the mark or not suitable for your requirement, then you will end up regretting. To ensure that you get the right product for your requirement, you have to clarify your load requirement and application to the manufacturer accurately.

3.  Check it before start using:

Many operators tend to ignore the instruction guide that comes with an electric wire rope hoist. You cannot start using it straight away. You have to perform a few checks and tests like voltage matches, motor requirements etc. Carefully check all the limit switches and lubrication. These tests will make sure that your hoist runs for a long time without requiring any maintenance. Below is the checklist you should tick before you commence operations on the newly purchased hoist.

Voltage: Do you have an adequate power supply to support the motor of the hoist? Make       sure the voltage of the motor matches the available power supply. Do not connect the hoist to the power supply until and unless you are sure about this. This is important because the voltage is directly related to the speed of the hoist. Even a minor difference can affect the speed of the hoist. The voltage supply should be exactly as per the instructions.

Lubrication: Do not forget to check the lubrication. Gearbox needs an adequate quantity of suggested oil and grease grade to operate smoothly. Follow lubrication related instructions thoroughly before using the hoist.

Push buttons: It is essential to check control pendant switches before the electric hoist carries the load. The operator should check the stop button by pressing it and ensure that the movement of the rope immediately stops after pressing it. The instructions to release the stop button are displayed over the switch.

Wire rope tangling testing: Does the rope tangle when you lower it or lift the load with it? If yes, untangle it before starting the operation. The hoist does not proceed until and unless the rope is untangled.

Cross travel motion: To take an idea of rope’s movements, the operator should check cross travel motion. The operator can move the crane to right or left through a set of arrows given on the control switch. Take the hoist to the extreme of the monorail or the crane bridge to check that the cross travel limit switches are working in order.

Long travel motion:  If the operator wants to move the hoist horizontally, there is a third set of arrows available on the control switch. Taking the crane to the extreme of the gantry rails helps the operator understand whether the limit switches are working well or not.

Take a trial run with the load: If you wish to lower the crane, press the down arrow in the first set of arrows. If the hook is attached to the load, you can lift the load by pressing the up button. The second and third sets of arrows are used to guide the load to its destination.

4. Observe the surroundings:

Hoist accidents can prove to be fatal. Be very careful while operating. When you operate the electric wire rope hoist, check your surroundings properly. Make sure nobody is standing under the hook. One should never take it casually; it can be very risky if something goes wrong. Keep people away while the operation is under process.

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These hoists come in different capacities and they can handle weight ranging from 500 Kgs to 20 Tons. However, before you purchase any electric wire rope hoists for your work, you should check all the technical details and the scope of use.

The various uses of an electric wire rope hoist in industrial areas can be summed up as:

Voltage Checking

Check the voltage before you start using any product. Even if there is a slight difference in the electric voltage, the functions of the hoists will be hindered. Further, you will need to check the speed of the electric voltage as well before you make your hoists lift the items for you.

Check the lubrication

Lubrication is a very important factor you should take note of. If your hoists need oil for lubrication, you must ensure that you oil your equipment for its smooth functioning. Before you start using the hoists, ensure that the gearboxes are filled properly as recommended by the manufacturer.

Avoid untangling

Electric wire rope hoists are prone to tangles. Before lifting any material, make the rope come up and down and make sure that your rope is free from any tangles. If you find any, untangle it before you move ahead with your work.

Test Buttons

Check all the buttons under expert supervision to see whether everything is working properly. Switch on and switch off all the buttons to understand the functioning well.

Limit Switches Test

This is known as the main function of the hoists. The hook should disconnect itself automatically when it reaches the top and the same should happen while it is down at the ground. Repeat this process twice.

Crane motion test

There are these set of buttons which are useful to move the crane horizontally. Test the crane along with hoists by taking it to the top and bringing it down again.

No matter how frequently or rarely you operate your electric wire rope hoist, it is important to stay safe always. These are heavy-duty equipment and only a trained man can operate it. If no one in your business premises knows about these hoists, you should train them well before you bring the equipment in the workplace.

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Actually wire ropes are flexible and composed of several steel or fiber wires. It is very necessary to measure its standard of quality. A sample specification is should like 6×37 or 6 x19 this shows its number of standard x number of wires per stand. We have a large number of firms which provides the standard electric wire rope hoist manufacturer in Ahmedabad.

Electric wire rope hoist is useful for heavy load lifting and it is a superior safe and favorable device, wire rope device offers the best investment for your business. Many hoist manufacturers in Ahmedabad provides multi advantages for your company.

Types Of Hoists

A hoist is an integral part of a crane. The lifting and moving tool will be nothing without it. Since the lifting jobs are different according to industries, cranes are also manufactured as per individual requirements. Further, the hoists used with each type of crane or under certain conditions also varies. Hoists can be divided into five categories depending on two characteristics.

Based on lifting medium, we divide them as wire rope hoist and chain hoist.

The second type is the source of operating power based on which, hoist are divided into three categories: air-powered hoists, electrically powered hoist, and manual powered hoist. Here are the type of hoists.

Chain Hoist

Chain hoists have metal chains for lifting goods in the industry. The chain is pulled through sprockets while lifting a weight, and then it’s dropped into a container. Chain hoists are comparatively low maintenance, and they might cost less than wire rope hoists. The chain hoists can be operated manually, electrically, and pneumatically (by air).

Wire Rope Hoist

Just like chain rope hoist, these can also be powered manually, electrically, and pneumatically. The hoist makes use of ropes for lifting stuff. It wraps the wire around the grooved drum. Why it is used over chain hoist is because it can lift huge weight at a comparatively high speed. The wire rope hoists can lift the weight to a much higher height.

Manual Hoist

The manual hoist can be both chain and wire rope hoist. When the speed factor is not to be concerned, manually operated hoists are used. The design of such elevators is simple, which offers easy inspection and cleaning. Thus, the hoist is quite easy to maintain. The hoist is best used in narrow places because of its compact design. It’s used on a large extent because of its ability to work without power.

Electrical Hoist

The electrical hoist can also be designed both wire rope hoist and chain hoist. As the name suggests, these tools work on the availability of power. These elevators are controlled by radio controls or push button pendants. The hoist cannot run continuously in unlimited cycles.

Air Hoist

A piston or rotary motor is used in air hoists. The motor is powered by compressed air. The air present in the motor passes through the system during the cycle and keeps it cool. The hoists don’t get overheated during the duty cycle and can thus operate continuously without the fear of bursting.

Benefits of standard featured wire rope hoist

• It provides compact design and facilitates to modernization of crane as per current industries demand and supply.
• It offers easy and effective load handling & easily available in the market.
• Provides surety for safety and saves material from damages.
• This is a time saver tool because it done work in very short period which takes hours to complete.
• It is very safe for lifting of higher level load and no manual effort make by using this devise.
• It is a complicated job to work with a hoist but wire rope makes it easy and its best features are useful for reaching the best wire rope hoist.

Features of electric wire rope hoist

1. It is portable and weather proof.
2. There must be easy to service electrical control system and extra chain for higher height lifting.
3. There should hoisting gear box, motor and break is one single compact unit to discard any opposite problems.

There is one most important element for wire rope is, it must be manufactured and constructed as per demanded by IS: 3938.

Conclusion:

Hoist manufactures in India provides good featured electric wire rope hoist which makes your work easy and efforts make on other activities.

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Firstly, make sure that the maintenance should be taken care by the professional technicians and do the proper maintenance activities for the electric chain hoist for the industry.

There are many points to take in into account. We have gathered some of the glimpses of them as listed below:

1. Basic Do’s & Don’ts

• Load chain lubrication maintenance
• Refuse to extend the load chain
• Do not adjust the friction clutch
• Avoid repairing the hoist by own
• Avoid operating the hoist chain when in repair
• Testing the load capacity after repairing works
• Shutdown the power resource when hoist chain in repair

2. Lubrication

As per the electric chain hoist manufacturer, there are always some checkpoints to perform for a better maintenance and long-term age of chain hoist.

Replacing the gear oil on the duration of a minimum of five years is good. However, it is not dependant on the hoist working hours; even if it is not used the replacing of the oil is mandatory.

Always take care of somethings when replacing the gear oil like taking off the plug and leak cover and completely draining the old gear oil. Also, maintain the consistency in the standards of gear oil to avoid the abnormal performance of friction clutch and bad results of hoisting like load falling.

3. Replacement of  chain

According to the usage of the load chain, it should be lubricated often. Replacing the chain makes it perform better and distinct. Replacement of chain includes some important points such as:

• Single and double  fall chain
• Take  down stopper
• Attach C-link chain circle.
• Attach end to C-link.
• Operating to the lower chain.
• Maintaining lowering chain
• Attach end to C-link.
• Operate to lower chain.
• Stop lowering chain when there on the load side.
• Ensuring the chain is not twisting while linking process
• Installing chain spring  or cushion rubber

4. Examination

First examination: In the examination phase, adding an altered hoist is a good move. The examination should be taken from the very professional operators for standardizing the process. Actually, the process may have two main phases for examination. However, it depends on the status of the important parts and deterioration and breaking down the display.

5. Daily examination:

Under the daily examination, the individual personnel takes the visual inspection and check for the defects if any. Also, conduct the damages for the recommended items. The professional individual takes the detailed inspection to avoid any future problems.

Regular examination: Under the regular examination, a professional individual should take visual inspection by the overall review of the hoist. The examination goes under the hoist working stations. A professional goes under regular observations and checks if anything is bringing major flaws then consider conducting a quick repair.

6. Occasional Use of  Electric Chain Hoist

At the times where the hoist is no more in usage for more than a month or less than a year, consider checking the required items before taking it for usage. If there is no use for more than a year, it may not have any working damages.

The post Do You Know About Electric Chain Hoist Maintenance? appeared first on HoistsandCrane.

For the challenging industrial workstations and their demands, there are many numbers of equipments coming into the play. The electric Chain is used for maintaining the proper flexibility and durability while performing the hoisting.

There are mainly four types of electric chain hoist characteristics named as motor brake, hook & hook, latch and limit switch. Each having a set of niches. The industries may need different hoisting chains as per the purpose of the job and load needs to be lifted. These main four types of electric chain hoisting are enough to deal with such diverse tasks.

Let’s have a glimpse of these four characteristics of electric chain hoisting:

1. Motor Brake

This is the first and foremost characteristic of electric chain hoist i.e., motor brake. It has a rotor brake system that makes it powerful for brake force. Using this type, it is easy to support the load along with the non-asbestos in the motor brake. This motor brake should be used in the places where brake force is needed at great extent.

2. Hook & Hook Latch

As the name suggests, the hook is forged with the carbon steel. This type is mainly used for the overloading situations. So it does not get brake whenever doing overloading. Also, the hook is accompanied by the hook latch that keeps the load in the hooks while load sling loses.

3. Limit Switch

Limit switch stops working on the prompt basis once the hoist gets over lifted. It waits until the hoist is extensively tight and will stop lifting immediately.

4. Friction Clutch

The friction clutch is used for stopping the motor racing. This helps in avoiding the lineages at the time of hoist overloading or maybe not tight sometimes. Here also the non-asbestos is used for the friction clutch.

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Introduction

The electric wire rope hoist manufacturer in Ahmedabad is designed for its durability and flexibility and there is multiple reasons which need to look out for choosing the electric chain hoist

1. Use guide chain: –Guide chain is manufactured in such a way that load chain can freely lift and fall.

2. New version of suction rotary motor brake: – Suction rotary motor brake which is made of non-asbestos which make hoist stop running when power get fail and this is done precisely and effectively. For this alternate or direct current is installed and when it is done, brake get off when power get off and then hoist work is power on, this help for surviving the failure of closed circuit of the motor.

3. High frequency motor made by cooling fan: – To increase Short time rating and repeated rating high frequency motor with cooling fan is installed.

4. Less- noise transmission gear: – For increasing hoist life noiselessly, precise spiral gears which are made of intensive alloy steel are soaked in the oil.

5. Upper limit switch: – Over Lifting can cause a big problem so to prevent that upper limit switch is made which stop the hoist when lifting is done.

6. Highly durable chain bag: – Durability of the canvas chain bag is high.

7. Aluminum case is intensive: –The original moulded hoist case is made of light structure and notable appearance which can gain everyone attention.

8. Special over rolling protective device: – Due to advanced technology newly designed device of friction clutch is used to soak the oil which prevent hoist from rolling up or being overloaded.

9. Examination and maintenance is required: – For doing spot examination and maintenance the control case is convenient and hinge. On the same board all electric switch are installed.

10. Emergency stop button: –If there is case of emergency in the organisation then user or labor can shut off the power supply by operating the emergency stop.

11. Buttons are durable: – Working in every machine requires security and for that buttons are made convenient which can be operated easily and are of low voltage.

12. Bottom Hook: –Bottom hook is made of hot forging which have perfect strength which is hard to break. Lower hook operation safety is ensured by its 360 degree rotation and safety tongue piece.

Conclusion

These are the above reasons which enforce organisation to use electric hoist which grow strength, durability and quality of the company in the market and increase their level in the competition.

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• The modular design forms a very efficient, compact & visually aesthetic unit.
• The hoist transmission train is a direct drive type with no coupling.
• The rope drum is mounted in maintenance free bearings located within the hoist bearer frame. The drum is accurately machine grooved to accommodate the hoisting rope in one layer. And is designed to leave a minimum of 3 (three) turns on the drum when maximum lift height is reached.
• A rope guide is provided to prevent slack rope and to smoothly guide the rope onto the drum.
• The rope is securely attached to the drum with 3 (three) rope clips.
• The bottom hook block is of the safety type, having fully guarded deep grooved sheaves, running in sealed ball bearings. The hook is a forged steel single point “C” Type, mounted on a ball thrust race and fitted with a spring return safety catch.

The special non-rotating hoist rope is manufactured from high strength galvanised steel, the standard construction is 6×36+SES with a minimum factor of safety of 5:1. Over-hoist/over-lower limit switches are provided located within the hoist control panel. The electromechanical overload devise prevents the accidental lifting of loads over the safe working load whilst still allowing lowering.

The Hoist & Travel drive motors with integral brake are totally enclosed, fan cooled, squirrel cage induction type, having class “F” insulation with “B” temperature rise, tropicalized and climate proof with a minimum electrical protection of IP55. The motors are specifically designed for crane applications for use in aggressive environments, without the need for anti-condensation heaters.

The heavy duty totally enclosed, fail safe, disc brakes are automatically and instantaneously applied when the power supply is interrupted. Brake linings are asbestos-free. Electrical control of the complete hoist would be from floor level via a heavy duty, weather proof pendant control station suspended from the hoist. Galvanised tension relief cables to prevent damage to the electrical connections support the pendant. Robust hold-to-run, control buttons, one for each crane function, provide positive operation of all motions. An Emergency stop Button is also provided.

A watertight control panel forms an integral part of the hoist and contains the complete control systems, comprising electrically and mechanically linked contactors for each hoist motion.

Main and control circuit fuses, control circuit transformer c/w the necessary protection devices to provide reduced operation of the control circuits. The contactors are AC 4 duty for high inching & plugging duty.

A main current supply system would provide the power supply along the length of the runway. Consisting off a special galvanised ‘C’ type track systems with sealed ball bearing cable trolley’s carrying special flat Neoprene cables type NYNJ. All necessary fittings and supporting brackets to connect to the runway are provided. A high level terminal box would be provided at one end of the system, together with the necessary vertical cable, terminating in a low level, lockable Isolator switch, for mounting 1500 mm above grade, complete with a suitable gland to accept your incoming supply cable.

Prior to packing & protected for transportation, the hoist would be assembled in our workshops & fully inspected & tested, according to our standard testing procedure, which would include full dimensional and functional tests of all hoist operations including limit switches.

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There are two types of hoists

• Manually operated hoist and
• Electric wire rope hoist.

Electric wire rope hoist is powered by an electric motor to make the work of lifting heavy goods easily. Moreover, it is quite safe and convenient. About 80% firms using electric wire rope hoist instead of manual hoist because of its convenience.  There are a number of electric wire rope hoists manufacturers in Ahmedabad who provides high quality electric wire rope hoists across the world.

Electric wire rope hoists are versatile and created from several steel and wires. It is essential to assess its standard of quality. Generally, A perfect standard should like 6*37 or 6*19 this indicates its number of standard*number of wires per stand. Today, we have abundance firms which offer the standard electric wire rope hoists manufacturers in India. These types of hoists are beneficial for your business so, spending money on electric wire ropes is the best investment for your business.

Tips for choosing the right electric wire rope hoists:-

• Before choosing a suitable hoist for your firm, it is advisable to evaluate its all features.
• While choosing a hoist, consider its quality, durability and other important elements.
• Cost is also an aspect while choosing a hoist, that is why analyze properly about different types of hoists available in the market
• Determine that hoists are able to lift heavy loads, requires in your business.

Features of electric wire rope hoist:-

• It is convenient and weather proof
• It should be smooth to service electrical control system and additional chain for higher height lifting.
• There should hoisting gear box; motor as well as a break is one single compact unit to get rid of any adverse problems.

Here are benefits of electric wire rope hoists:-

• Superior quality and heavy duty wire rope hoists
• Easy as well as potent load handling
• Beneficial for crane modification and factory reconstruct
• DC Disk motor brake
• Heavy-duty fan excellent motors
• High-quality rope for wear resistance
• Cost-effective price
• IP55 rated for outdoor purpose
• Flexible models, providing a wide range of choice as per exertion
• Comprehensive, compact design
• Easily available in the market
• Saves your time  because it does a work in a short period, which takes hours to accomplish

Why choose us ?

• The Krishna crane offers a variety of these hoists
• We have 10+ years in this field
• We survive 1000+ customers
• We have 21+ dedicated staff to provide you an outstanding service.
• More information, contact@hoistsandcrane.com.

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