The Engineering of an Articulating Jib Crane

The engineering of an articulating jib crane makes it able to position loads of material into places that cannot be reached with any traditional jib cranes. Articulating jib cranes provide easy rotation, with precise responsiveness. With easy rotation this allows the crane positioning heavy loads across the articulating jib crane’s coverage area. Articulating jib cranes are able to position while spotting loads through doorways, rotating in close spaces and even around barriers. An articulating jib crane can be freestanding, ceiling mounted or wall mounted giving it more versatility. Articulating jib cranes have the capability for capacities, as much as 2000 lbs.

Freestanding Articulating Jib Crane

Freestanding articulating jib cranes are great for many load-bearing tasks that will require the use of an articulating jib. Freestanding articulating jib cranes provide consistency and have a seamless ability to lift and lower loads into position. Articulating jib cranes are able to cover in circular, standard spans from lower than, up to 16 feet. The articulating jib crane can rotate at 360 degrees, in each pivoting point. Also, the freestanding articulating jib crane can be aided with a hook mounted lifting devices such as electric, vacuum or air devices. Freestanding articulating jib cranes are floor mounted and overall easy to install. Although they are easy to install, special foundations may need to be applied for the support of the crane.

Ceiling mounted articulating cranes are most likely to be stationary, mounted or platform supported. The ceiling mounted articulating crane will be mounted overhead, to cause no disruptions to its workflow. Its compact engineering also requires low overhead clearance for installation. Like the freestanding articulating jib crane, the ceiling mounted jib crane can allow capacities of up to 2000 lbs., cover a circular span of up to 16 feet and be aided with the same hook mounted lifting devices, that the freestanding articulating crane is able to use. The fact that it can be mounted to a platform, will allow it support from a bridge crane to give it the ability to oscillate beyond its conventional coverage area or space.

Wall Mounted Jib Cranes

Wall mounted articulating cranes are generally required for jobs that require maneuvering around or under obstructions, especially with the proper wall or column support to this crane type. While wall mounted cranes are not able to rotate 360 degrees, the best they can rotate is up to 200 degrees.

Despite its lower rotation ability, it can still allow for capacities up to 2000 lbs. and cover circular spans of up to 16 feet, just like the freestanding and ceiling mounted articulating cranes. The wall mounted crane provides a clear work area free of any obstructions on the floor. Also, the ceiling crane will require minimal overhead clearance to be installed. Each of these crane types has great capacity capabilities and less restrictive load space than many other models and types of cranes. The fact that articulating cranes can easily load and unload materials are what gives it a strategic advantage based on the crane’s intended use.

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Information Regarding Over the Bridge Crane

An over the bridge crane (OTBC) runs on a runway system that is elevated and tends to follow the span of the building. It has a hook motion of three axises along the length of a factory and provides three axes of hook motion (X, Y, and Z). The trolley of the OTBC is responsible for moving the item to either side. The hoist, the second part of the over the bridge crane, handles up and down movements.  There are two types of over the bridge crane: the single girder and the double girder. There are differences between the two, but they are both elements that allow precise and exacting positioning of the hook, and also control the placement of the load. Without them, it would drop heavily and potentially get damaged.

There are differences between the two. There is often confusion about the durability of the double girder crane. The perception is that it is sturdier. The fact is (and this is verified by the CMAA (Crane Manufacturers Association of America), both double and single girder cranes are strong and durable. However, the single girder has powerful cross girders which the double girder does not have, and it also comes equipped with lateral bracing. This actually makes the single girder the stronger of the two.

Types of Over the Bridge Crane

The main difference between double and single girder cranes is their hook (which controls the height that your load can be lifted. This is the area that double girder cranes dominate. They have a lift height that is 18-36 inches higher than the single girder. The reason their lift is so much more effective is because they have a hoist which is added between the cross girders, whereas on the single girder crane the cross girders are underneath.

There are also Electric Overhead Cranes (EOT). These cranes, simply put, are exactly like non-electric cranes but are run by electronic devices. They are often built specifically for the customer, based on industry and location-based needs. Since each industry has its own set of requirements, they require different technologies. Some industries include: construction companies who have to move materials, production halls, assembly lines, storage areas, and even power stations use overhead cranes and hoists.

Duty Cycle | What is It?

Companies must first decide their lifting needs when it comes to design, specifically the capacity required. Then they need to determine the “duty cycle” they’ll be using for the hoist. This is based on the lifts per hour, and the length of each lift.

There are also rotary overhead cranes, which has an end of the bridge that is on a pivot that is fixed, and the other end is carried on an annular track. The circular area underneath is where the bridge travels. This kind of crane allows for longer reach and also removes strain on building walls, as compared to, say, the jib crane.

These are the different designs that are on offer when looking at overhead cranes. There are many companies that provide support and help industries design and access the cranes that are best for their purposes.

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A Factory Worker’s Best Friend | The Workstation Jib Crane

The workstation jib crane offers the ability to easily lift and transfer loads that are repetitive. These crane systems can be mounted as a permanent floor mount or can be mounted to walls. They are versatile, can perform a variety of handling and positioning functions and provide great coverage in circular areas not normally efficiently served by regular cranes. They are great for supporting balancers, air balancers, hoists, vacuum lifted and welding wire feeders. They can handle up to 180 rotation when mounted to a wall and 360 rotation if floor mounted.

The value in the workstation jib crane is that they increase productivity through easy boom rotation and trolley movement. Only a low fee is required to start and stop the boom rotation and hoist. This reduces injuries and improves safety for workers. Because of this, they also provide a quick return on the initial investment made in them.

These systems are easier to move and position than traditional I-beam jibs. The cold formed, high strength enclosed track design cleans rolling surfaces. This leads to easier movement by operators, while at the same time keeping rolling surfaces clean. Many are also designed to provide reliable life-long performance with minimum maintenance. There are two types of workstation jib cranes, arm rotary, and free standing suspension.

Arm Rotary Jib Crane – These are used to control or position a load in areas that are generally inaccessible to other material handling equipment. The flexible moving mechanism allows for lifting tasks at easily.

Free Standing Jib Cranes – Freestanding jib cranes are fixed to the floor without any support to stay upright. The depth of the foundation depends on the load and reach. One of the advantages of this type of crane is that it does not need a support wall nor structure and provides optimal range of span and control compared to wall mounted cranes and other types of jib cranes.

When selecting a workstation jib crane to match individual requirements, thought should be given to operation type, necessary options and how much the cost of both the unit and installation. Factors should be considered when choosing a workstation jib crane for maximum effectiveness at minimum costs. Below are factors to be considered when considering purchasing a jib crane.

Use of Jib Cranes:

• Fitting and fabrication workstations
• Building maintenance
• Plant room maintenance
• Marine loading and maintenance
• Machine center loading and maintenance

Design Features:

• Circular coverage workstations
• Ergonomic movement
• Provides economic, supplemental lifting coverage
• Styles range from self- supporting to wall mounted

Workstation Features:

• Capacity
• Under boom height
• Area rotation
• Overall height

 

There are a variety of vendors, both local and online who sell jib cranes. In purchasing a crane the ability of the vendor to provide the following should be considered:

1. Various types, compact structure, and reasonable design
2. Affordable price, good performance, and reliable quality
3. Long service life, tough material, and durable use
4. Fast installation, simple structure, and easy maintenance
5. Strong adaptation, wide application, and customized service
6. Professional supplier, high praise, and strict standard

The workstation jib crane is a great piece of lifting equipment. It is widely applied for loading and unloading materials in many different places. It can approve working conditions, reduce cost and increase efficiency.

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Tell Me About Ergonomic Lifting Systems

Historically, employees in work environments were trained on proper lifting techniques in order to reduce the cost of work-related injuries involving heavy lifting.  However, there has been little evidence to prove that this solution offers any real benefits. Accidents due to lifting can result in a loss of productivity and profits. Ergonomic lifting systems fill the gap between the type of lifting devices that have been used traditionally and robotic ones. They are designed to minimize the risk of injury to workers while lifting. Another benefit is many of these systems are also designed to enable a single operator to do the work of multiple operators, which saves on manufacturing costs. As for the cost, investment in them will end up paying for itself because of the savings gained from reductions in worker’s injuries and increased worker productivity. These devices allow operators to move and lift in a natural way. Some devices enable operators to maneuver as if it is an extension of their own hands.

Ergonomic lifting systems can be designed to fit the individual needs a customer may be facing. They can be designed to be used for any type of industry. Products that lifting systems can be designed to handle include boxes, building material bags, automotive parts, wood panels and much more. Systems can be designed to provide solutions for the following:

• Ergonomic cranes
• Ergonomic Design
• Zero gravity lifters and balances
• Ergonomic lift tables and lifts
• Lift design and build
• Lift assist hoists
• Material handling vertical lifts
• Vacuum lift assist devices and industrial manipulator arms
• Ergonomic jibs crane system
• Pick and place applications end effectors
• Workstation design and build

Many new advances have been made in the design of ergonomic lifting systems. New features like comfort-grip handles and articulating arms. Comfort grips allow the operator to have a comfortable, ergonomic grip and an integrated control lever that allows a single operator to lift and lower loads in one smooth motion. This approach is ideal for customers who unload heavy lifting.

Articulating arms have a second arm that can be used to fasten tools and for handling operations. They feature a second axis pivot at the end of the parallel tubes along with an extension that allows the operator to reach the entire work area.

Keeping workers safe is the most important value of any ergonomics lifting system. Ergonomics is becoming important to ensure that people working with these systems can safely achieve top performance in their work. In meeting challenges brought forth with an aging and diminishing workforce, ergonomics is crucial in reducing strain and stress on operational efficiency. The trend is where ergonomic lift devices will pair the strengths of technology and robotics with the intuition and adaptability of human operators.

Intelligence is also being added to many devices. Old pneumatic balancer technology is being replaced with servo drive/PLC controlled lifters for applications that cannot be automated due to the requirement of needing operator’s intelligence. Crane systems such as these provide the customer with feedback capabilities. The lifter is able to tell the operator what is happening and can assist in detecting loads, such as detecting and notifying an operator not to release a load when it detects that the load is not properly seated. Technology such as this in ergonomic lifting comes at a much higher cost. However, the return on investment can be had immediately if it prevents certain common incidents such as an operator blowing out his rotator cuff or dropping and damaging a valuable part.

The impact of ergonomics on work progress improvement should be mandatory to the equipment selection and specification process in selecting a system. Worker feedback will generate initial buy-in and ownership from the worker who will be tasked with using it, which will increase productivity. There is a quantitative guideline for ergonomic impacts but many employers are taking a more subjective assessment to impact. The person actually using the equipment should be considered.

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The Four Basic Designs of Overhead Cranes

Overhead cranes, otherwise known as bridge cranes is a type of crane that is used mainly in an industrial atmosphere. Overhead cranes do the strenuous tasks of removing extremely heavy and massive loads of materials through the overhead of a facility. Overhead cranes will never material handle at ground level, hence the name overhead. Overhead cranes generally lift, lower and move loads of materials horizontally. Parts of the overhead crane design include the truck, end ties, girders, a walkway and a drive mechanism, which carries the trolley and travels parallel to the bridge.

There are four basic types of overhead crane design which are: the top running crane, under running crane, single girder bridge crane, and the double girder bridge crane. Although they vary in design, they still do the same function, which is to move heavy loads of materials overhead. With a varied design look, the top running crane is mainly engineered to travel on rails, which are mounted on runway beams. These beams can be supported by freestanding columns or the existing columns of a building. The under running crane was designed to travel at the bottom flange of a runway beam. The roof’s structure of the building will more than likely support the runway beam for the under running crane. Single girder bridge cranes are simply made up of one girder, double end trucks and a trolley hoist. The trolley hoist runs along the bottom flange of the girder between the double end trucks.

Factors of an Overhead Crane Design

Double girder bridge cranes, which is a type of overhead crane design will allow the trolley hoist to travel on top of the rails that are mounted. Single girder bridge and double girder bridge cranes can be referred to as gantry cranes. However, gantry cranes will differ in the fact that they are actually attached to legs at both sides of the span. Gantry crane engineering will generally eliminate the required use of a column or an overhead runway system, which is a monorail system. Dealing with the fact that the system is monorail a trolley hoist assembly will be needed.

The use of monorails is determined by the service areas or even in applications where the loads being lifted, lowered and moved must follow an established path. Certainly, during the process, the trolley hoist would be mounted to the bottom flange of the monorail’s beam, just as it would in a single girder crane.

When working with any design of overhead cranes, it is very important to know the crane and the varied functions of the crane. Basic things like knowing about the products nickname, how and why it functions the way it does is proven crucial to maintaining and running an overhead crane. Also, it is crucial to get the most comprehensive training in order to properly service the whichever overhead crane machine type that will be used. Since overhead cranes are used for industrial uses and housed in factories, this means that if there is any chance or possibility that the machine might malfunction or cease to work, the factory may risk taking a loss financially.  It is imperative that the person operating the machine knows how to work the machine and there are thousands of programs that will help with teaching how to use overhead cranes. The different types of overhead cranes will do the same function or functions of lifting, lowering and moving heavy and massive loads of materials. Although, they perform the same function the overhead crane design will vary due to some tasks they can handle compared to another model design.

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Details of a Custom-Built Jib Crane

Cranes are an essential part of the construction and a variety of other industries. They are used to support, position, build and transport materials of a variety of shapes and sizes. A custom-built jib crane is a more affordable type of crane and can be operated manually or electrically. They are often used in manufacturing and other industrial settings to lift and move goods.

Jib cranes assist workers and increase work by enabling workers to handled extremely heavy loads effortlessly and with precision. They are effective methods of repeatedly moving heavy items quickly and cost effectively from one workstation to another. There are many types of jib cranes. They are normally designed for the needs of each operation, so many may vary depending on the purpose for it as well as style, etc.

By design jib cranes are simple. A boom is attached to a mast or mounted on a wall that rotates and covers an area. The various custom-built jib crane options are:

Floor mounted – There are many different types of jib crane designs that can fall under this category. A custom-built jib crane of this type each serves their own specific purposes. Most jib crane designs are floor mounted. Floor mounted jib cranes provide the operator with the operator from a 360-degree view to cover larger areas of what is going on. Compared to others, these are heavy duty and require a special foundation in order to be mounted. Because of this, they are also more expensive than others.

Floor mounted jib cranes can be installed anywhere indoors. The difference between this custom-built jib crane and others is that these are always mounted to the floor. Many jib cranes at lower cost. They can be fully-cantilevered or drop-cantilevered depending on the overhead structure of the work environment. Because the boom is mounted at the top of the mast of a full-cantilever style system, it allows for the crane system to provide to the operator more clearance underneath the crane. There is also the drop-cantilever mast style that is pretty much identical to the full. This slight difference is that it has a side plate connections where the operator can specify height. This feature is appreciated and of value for work environments that require extra overhead clearance because of obstructions below the mast.

Custom-Built Jib Crane Has Great Options

Wall mounted – Wall mounted jib cranes have a circular coverage area of 180-degree rotation. They are not as heavy as floor ones but they are still strong with capacities of up to 5 tons. They are a great solution if the workspace is an issue. The are made to be able to easily fold up out of the way. They require no floor space and do not have a foundation.

The two main types of wall mounted jib cranes are cantilever and ones that are rod supported. In regards to savings, tie rod ones are economical. These do not have a support structure under the boon. This makes it easy for the operator to navigate the trolley hoist to travel the full length of the boom. This system is reinforced with a wall bracket with the tie rod supported boom.

Wall mounted systems are a great solution for work environments that are very busy. The benefits of them are they allow for easy installation for individual work areas. However, of the types, they are not the best for precision or for flexibility in lifting.

Articulating Jib Cranes – Articulating has a variety of installation types. They also offer a great range of motion and lifting flexibility. This type of crane is unique in that it offers two types of rotation. The inner arm gives 200 degrees of rotation and the outer arm provides 360 degrees of rotation. The versatility of the handling allows operators to lift and move items around corners and columns. The operator can move it and place between the anchor and the reach of the boom. These types offer multiple installations options such as floor mounting, wall mounting, ceiling mounting and bridge mounting. Their inner and outer arms allow and operator to navigate around most obstructions. Their flexibility and variety make a great solution for most work environments.

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The Amazing Overhead Free Standing Crane

The overhead free standing crane is also well known as an overhead bridge crane, or a workstation bridge crane. There are three different popular types of overhead bridge cranes. The three types are:

• Single Girder Top Running Bridge Crane – This type is an overhead bridge crane that has one bridge girder that supports the trolley and hoist. The trolley and the hoist ride along the bottom flange of the bridge. The single girder crane is also widely considered top running when the girder of the bridge runs along the top of the runway beams instead of the bottom.

• Double Girder Top Running Bridge Crane – This model is an overhead bridge crane that has two bridge girders that support the trolley and hoist. The trolley and hoist ride on top of the two bridge girders. The double girder bridge crane is considered top running when the bridge girders ride on top of the runway beams.

• Single Girder Under Running Bridge Crane – This variation is a bridge crane in which the girder of the bridge runs along the bottom of the runway beam. In contrast to a top running bridge crane where the bridge girder rides on top of the runway beams. The runway beam for an under running bridge crane is which this type is usually ceiling mounted. The under running bridge cranes also have a weight limit of only 10 tons which is highly advised not to be exceeded.

The other choice for an overhead free standing crane is the workstation bridge crane. This type of crane has two types of choices consisting of:

• Free Standing Workstation Bridge Crane – This choice utilizes an enclosed track design that makes for easy movement and longevity of life. Enclosed track systems are high in strength and low in weight. The low profile enclosed track design allows for the system to be installed where headroom is a problem.

• Ceiling Mount Workstation Bridge Crane – Work Station Bridge Cranes use enclosed track that is cold rolled and has a low profile that offers a low-weight to high-strength ratio. Floating end trucks result in ease of movement and precise load positioning. The bridge travels smoothly down the enclosed track runway. Ceiling mount workstation bridge cranes come with standard hanger assemblies.

Although there are those five standards and most popular types of the overhead free standing crane, there are many other variations and types to choose from when considering purchasing. The few things to consider about them and to be cautious of are similar across all various models of cranes. The factors to be considered consist of weight lifting limit for the hoisting capacity, operating space, worker safety, and ease of worker operability. Always be sure to consider all cautious specifications before purchasing a crane and also be sure to never operate a crane outside of its operating capacity. Meaning never lifts more than the crane has been designed to lift by the manufacturer, and always ensure that the operator knows all safety risks of the crane in operation.

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