spreader beams

1. Why do we need a lifting beam?

There are many kind of lifting beams, frames and spreaders for specific and different purposes. For this reason, a wide range of designs can be found with a wide variety of capacities, each of which has operational limitations.

For this reason, it is recommended that you carefully consider the following before selecting a beam and in order to have the best selection.

• All requirements for application: requirements such as reducing headroom, providing different lifting points, creating centers for adjustable lifting, to balance the unbalanced loads, in order to control or eliminate the crushing or inward forces, and in order to create conditions for loading loads with special attachments.

• Calculations to be made: To select a suitable lifting beam, computations such as required capacity, both the overall beam and the unique lifting points are required.

• Calculating the center of gravity: One of the most important things to consider is the heavy point center or center of gravity of the load that have to be lifted. To calculate this point, all accessories and attachments that are used in laod, such as slings, hooks, grabs, shackles, magnets, vacuum pads and some other factors, must be considered.

2. Comparison between Lifting beam and lifting Spreader

Generally, lifting beams, lifting frames and lifting spreader are all three devices that, by creating two or more points of lifting on the load, from the lifting machine hooked or crane spaced, and using them in principle the load position from the lifting points of the load that are lifted in order to provide better load balancing. The difference between these three is mainly in the way forces are transmitted.

Usually the spreader is also known as the Spreader beam. Spreaders in fact in compression have a strut loaded.

A simple spreader usually has a suspension sling that is connected to the lifting machine hook, which is used to pick up various objects and is generally attached at the bottom of the spreader at the end of spreader, and it is only enough to lift the load to attach the hook to a portion of the load. This structure makes the sling easily lift the load.

For example, a cable reel should be lifted from its axles so that the chains cannot damage the drum flanges.

Although modern design spreader have a lot more complexity, they nevertheless still do the same, and the purpose of the work is the same. Generally, both beam and spreader are used in combination, and they are usually used interchangeably, although the equipment is completely different and cannot be replaced.

Usually, it should be taken into consideration when using, that they must be loaded for the purpose they are designed for.

 

3. Variations

Other lifting beam variation is that designed to connect two overhead mobile cranes and create two or three different lifting points for picking up different objects.

Despite this structure, it is easy to lift tandem lifting. The good reason for this is that the total lifting capacity can be less than half the weight of the two cranes for one beam, which allows it to easily load in uncertain conditions.

Generally, each lifting beams and spreaders are designed and used for specific purposes. For example, with vacuum pads, special lifting beam are used, or in order to lift long flexible loads that need to be maintained at regular intervals to prevent sagging the lifting magnets are used.

Although it seems that the main design of the spreader is to carry loads such as vehicles and boats, care should be taken for this to be done, and the lifting gear should be used on the base, because the slings can easily damage the body of these devices.

4- Find out the stable of the load.

 

Lifting beams and spreaders are usually used in places where there is not enough headroom. Since the attachment point is usually above the center of gravity, it is best to adjust the load to always hanging in a stable position.

But there’s often no choice but to connect the slings of lifting beam and spreader to the bottom of the center of gravity of loads, so in this case, you need to be more careful so that the load is sustained while lifting the load.

A container that is lifted from the base can be a routine application of this kind. Lifting beam is usually connected at the base of the container, which requires four vertical single leg slings joints for this purpose.

When you look at the load from the side, you will see a lifting beam along with the container you need to load and the slings that are attached to the four corners of the rectangle.

This rectangular connection structure creates a mechanism that creates a good alignment. This usually happens when the load does not have the necessary stability and starts to flutter on one side.

In the picture on the left, you can see the possible situation.

Some forces can both toppling the load and prevent overturning and toppling of the load from the vertical distance from the hook seat of lifting machine, which is connected by sling to different points of loading, in lifting beam (A) and also because The distance of center of gravity points occurs at the top of the attachment points on the skid (B).

Usually, the center of gravity is always better off as far as possible from the hook. In this case, if A is more spaced than B, the way to establish a stable load will be better. The greater the difference, the greater the stability. But if B is more spaced than A, the way to deploy the load will be less stable and will topple. Of course, it should be remembered that the relationship between C and D is also important in stabilizing, since C has a greater spacing than D, it will result in less stability in load.
What is important is that the issue of stability should be carefully investigated during the planning stage of the lift, and this should not be given to the time of rigging.

To remove one-time vertically, with good balance, the static friction in the pivot points should also be considered, which has a great impact on the load balancing. When a travel motion starts, this static friction can be sufficient to break the frictional grip, and it should be kept in mind that when the load begins to topple, there is no way back.

What is described in this example can be the same as the four-point lifting arrangement, except that a similar problem with other arrangements may occur.

For example, when once raised by the two slings in the basket hitch, each of the slings is connected to a straight lifting beam.

Once the load is raised safely and securely, it is consistent with the triangulation provided by the basket hitch.

However, with a glance from the side, we find that a rectangular mechanism has been created for the load from below the center of gravity, which has only been established by the friction between the slings and the load to stabilize it.

Lifting beams to hook the lifting machine hook usually uses a profiled plate eye. This profiled plate eye will minimize dimension A, although it can have problems for sustainability in this type of program.

Given a much larger dimension for A than B, it is a clear method to ensure stability in load. And this is exactly what makes a spreader, which uses a sling for lifting objects, to have more advantages over lifting beam.

In summary, as already mentioned, a combination design can be used. In this type of design, the beam will be suspended from a sling connected to the slider along the beam rather than to the end. By increasing the size A and increasing the forces in the beam, combination of bending and compression mode.

5- Multi-purpose designs

And highly functional use of conventional methods of lifting beam and spreader is designed for multi-functional purposes.

There are two general ways to do this. Lifting beam can be adjusted with lifting points, these points move along the beam to be able to adapt to a variety of loads.
Spreaders can be madding modules that designed to be assembled configuration required.

Lifting beam and spreader that are designed in this way makes it cost effective for applications or programs are limited.

Also, for special applications that should be intentionally lifting the load tilted, or for position that require a top suspension eye, it is possible to design a special lift beams to reach the center of gravity.

These designs usually have adjustable lifting points or tilting features, and in design they should be considered for possible operator errors in not adjusting or tilting accurately.

6. Standards for lifting beams and spreaders

The requirements for lifting beams and spreader are described in detail in European Standard EN 13155. All major changes and requirements have been reviewed in this standard. Buyers of this type of device are better off preparing a copy of this standard and complying with the requirements described therein.

In general, lifting beams are described in two categories, accessories for load lifting and fall within the scope of the Supply of machinery (safety) according to 2008 rules. Integrated and harmonized standard BSEN13155: 2003 + A2: 2009m, Safety-Crane- unstable Load lifting attachments.

In order to ensure compliance with the minimum requirements of the instructions for this type of machinery, this standard should be implemented and implemented in the best possible manner.

Until the publication of this standard and the directive, there were virtually no standardized and codified standards for constructing and designing lifting beams.

For this reason, many manufacturers of these types of devices often used existing guidelines and standards for weldable structural steel such as BS 449 and BS 2573 to make these devices.

However, in the EN 13155 harmonized standard, values are still not defined for capacities above the minimum requirements of the Machinery Directive.

When used of lifting beams in working environments, the rules that are defined for work equipment and lifting equipment regulations (LOLER) are used.

7. Documentation

The Lifting beams are considered to be sub-assemblies of lifting accessories and should therefore be considered within the scope of the Machinery Supply Regulation (Safety) of 2008 and, accordingly, their rules are assessed.

Companies and organizations using these lifters will need to submit an EC Declaration of Conformity and Maintenance Instructions (as described in Section 3.3) for use in them. The EC Declaration to be published the following titles should be seen:

• Name and address of the manufacturer of the Lifting beams
• Specifications and addresses of manufacturers authorized representative
• Detailed specifications along with the address of the person responsible for compiling the technical file
• Definition of specifications such as equipment type, device type, production serial number, WLL, machine weight (in the presentation of the weight should include details such as ancillary equipment, additional ancillary equipment with other equipment)
• All specifications and standards used
• Date and place of declaration
• A statement that meets the requirements specified in the safety and health requirements and in accordance with the definitions given in 2006/42 / EC.
• Detailed specifications, date, position and signature of the confirming person.

8. Design

At the time of the design of the lifting beams and safety spreaders, the minimum requirements specified in the Supply of Machinery Regulations (Safety) must be observed. In fact, this part of the guidance covers the criteria to be considered, and it is also better to comply and follow with BS EN 13155.

9. Technical File

All information that is associated with the production of a lifting beam should be considered in its technical file, which is why this technical file is of great importance.
If the lifting fails and the lifting beam is out of service, you should be able to refer to the technical file and examine the issue.

 If it is not proved that other factors, like misuse, have been blamed for damaging the machine, it is vital that the information in the technical file indicates that the manufacturer of the device has seen all reasonable practical steps to ensure the safety of the equipment in this case.

You do not have to have physical entity, but they should be available from a variety of sources that need to be upgraded or arise.

For more information, see Continue.

Information to be seen in a technical file:

In general, a lot of information can be found in a technical file, but the following information is one of the issues that should necessarily be considered in the technical lifting beams file:

• A list of EHSRs that are used for lifting beam
• Provide solutions to eliminate hazards or reduce and control potential hazards
• reference to the standards of the equipment made from it. In the list provided by these standards, the standards used for accessories that are in danger of producing or using lifting beam, such as shackles, chains, ropes, etc., should also be seen.
• Information from the user’s side. This information should include details such as geometry and load mass including the gravity center. Also, the details of the lifting beam device, including the size of the hook, the SWL, and the work envelope between the load and the device, should also be necessarily seen.
• Information related to topics related to design calculations, construction methods, welding methods and detailed maps
• How to trace material should also be seen. In this information, the details of all materials and collections must be specified in the technical file. This information can be a mill certificate for metal mills or an EC Declaration of Conformity for a work item.
• Test reports, including load tests or non-destructive testing performed in boiling, should be reported according to a technical report.
  Finally, provide detailed instructions for using the device

Finally, in order to complete the technical file, it has to submit an EC Declaration of Conformity, which has been exclusively prepared for the lifting beam, and should be added to the technical file.

10. Verification methods

There are two general criteria for verification of the lifting beam with regarded to strength:
1. In proof force: In this case, maximum stress in the stress of the material must be used.
2. The load should not be released at the minimum deflection force. In addition, in this method, a combination of two methods of calculation or load test can be used and is acceptable. Sections 10 and 11 refer to both methods.

Sometimes, lifting beams may be designed in such a way that it can be tilted or rotated. Therefore, in the structure of this type of lifting beams, the bellies are usually used of moving parts that can travel along the beam.

In this case, we need to verify the additional design and method of verification to confirm. In section 15, you can see launch centers and moving parts.

11. Verification through Calculation

In order to ensure that the design is safe and appropriate for purpose, a person must be selected to carry out calculations that has the knowledge and experience of the theory of lifting beams and in fact have the necessary qualifications. However, it is better to check these calculations.

To reassess the calculations, it is not necessary to use a person with full specifications and the same qualifications as the former person, and often it is used to simulate a computer to confirm the lifting beams.

At simulation time with a computer, one can also check the results with a simple calculation. Performing these calculations to ensure that the calculated stress is correct and whether the lifting beam is deflecting properly.

At the time of calculations, either using a specialist persons or using computer simulation, the forces inside the service should be simulated well and accurately, as they may be induced by load. At this time, the nature of the load should also be taken into account.

For example, it should be checked whether the load is flexible or rigid? If the load was flexible, in order to prevent damage to the load, the beam should be rigidity.
In addition, the rigidity of the load, especially in situations where there is no uniform load, should have some flexibility in the lifting beam.

Some calculation examples to be considered are as follows:

– Critical buckling loads

Note: Note that in some spreader beams, the compression load is used unexpectedly, because the weak point on the axis of the beam is offset by the eye of the pad.

Eccentric buckling equations solving, really require a lot of time, because we cannot simply solve the critical buckling load, and we need to know the known numerical methods as many root-finding technique used of these methods. Designers are better off using their computational methods to save their time, because they are assured of a convergent motorized replacement.

There are many ways to do this, but two examples of the best of these are the MathCAD and the FEA method, which are powerful software.

• Shearing, bending and tension stress
• Possible buckling in the flange or web of the beam in accordance with the regulations BS EN 1993-1-1 clauses 5.5.2, 5.5.4 and 5.6
• Bearing stresses and Shearing for eye pad
• Bolt and Weld stress calculations (must be considered at least 8.8)
• Weak or Brittle fracture according to the specifications given in Table 3

Due to the limitations mentioned in EN 13155, it should be used twice maximum stress in WLL as the performance of materials to insure that the stress is in the yield stress.

A nonlinear analysis of the structure should be done at three times in the WLL to ensure that the structural critical points do not fail and load will not be released, although permanent deformation is not a problem.

Note: Considering the dynamic effects of lifting when designing factors and do not considering wind loads. Due to the environment in which the lifting beam is used, the pressure load is removed from the load, and the structure itself may require separate analysis.

If load is centered or under the point of gravity (COG), load stability may be affected by the position of the base load points.

It should be noted that design calculations obtained on the basis of ideal theoretical hypotheses should not be and cannot be used for all topics. For this reason, a competent person must examine the lifting beam before the start of the work. This person has the authority to determine the extent of these surveys, and sometimes NDT of critical welds may also considering.

12. Verification through test

It should always load test be done according to planned on the assumption. In this test, it should be noted that the test may fail, and therefore precautions should be taken to prevent injury to persons or damage to anything else in the environment and then test should be done.

If, in the calculations, the minimum amount of force is not verified, using this method alone, at least one lifting beam must be destroyed.

At the time of computing, at least the technical specifications required in accordance with the design criteria and acceptance criteria, such as the maximum permissible deviations or permitted changes in the worst loading conditions, must be considered.

In the test of modular or adjustable lifting beams, the worst possible configuration should be selected and tested.

The test design criteria should be well adhered to, and this should be done with precision simulation in the conditions of the loading that the lifting beam is designed for, which should include the amount of tolerance on orientation when used.

The load test is usually done in two ways, which can be selected by the tester of each of these two methods to achieve the desired target. These two methods are explained in Section 13 and Section 14.

13. Load testing with weights

• First, for the weights test the pre-weight test or use a load cell on the line must be done.
• The lifting device must have both enough power and enough head room
• If a containers is used to move weights, especially for higher capacity beams, the weight of these containers should also be calculated.
• The simulation should be considered for the weight of the loads that can be flexibly tested. It may be necessary to require a jig or load mock-up to achieve the correct simulation. It may even be necessary to control lift the product that is lifted. In any case, for testing applied force can be used to control more precisely and cost-effectively.
• The weight test as a rigid load at times when the load is rigid, should be performed as a rigid load alone.

14. Load testing by means of an applied force

• You can also use mechanical tools such as rope stretching machines, as well as hydraulic and pneumatic devices for applying the force.
• A calibration load sensor or a calibrated load cell of each test rigs must be in its load path. Having accuracy of +/- 2% and calibration in accordance with BS EN 7500-1 are the requirements of this test.
• To simulate a flexible load, it is possible to use multiple forces applied to varying loads, by provided that the beam fixing at the point where the lifting appliance hook is fitted.
• Also, separate tests for different elements of the lifting beam can be considered using this method.

At the time of the test, the tester should use the measuring equipment to determine compliance with the acceptance criteria for passing approval on admission. At first, acceptance criteria must be selected and then the measurement equipment is selected in accordance with the admission criteria.

What matters in this equipment is their calibration and can include a variety of measuring devices such as an instrument for measuring gauges, pressure gauges, etc. Additionally, having an adequate resolution for the equipment used to measure the deviations should also be considered in order to estimate 15.5% of the permissible deviation of the structure under test.

A complete test of beam should be on the agenda after a proof force test has been performed. This test can also include NDT-critical welds.

Refer to section 24 of this guide to read other details of the full examination.

15. Verification of lifting beams with moving parts

Some lifting beam are designed for tilt. In this case, the manufacturer must specify the maximum permissible gradient from the horizontal.

To perform the lifting beam test, the calculation method and the test method can be used. However, in carrying out any of these tests, it should be considered that the criteria set out in sections 13 and 14 of this guide are generally observed and, at the same time, an additional 6 degrees over the maximum intended tilt angle should be tested.

The structure of some of the lifting beams is such that it facilitates the adjustment under load, manipulation, load orientation, or other complications. To test these types of beams, various situations across the range of motion must be simulated and tested. In order to test these issues, you should consider the worst operating conditions and should pay close attention to the tilt tolerance.

The structural mechanism of the beam must be predicted in such a way that, if the free motion of the rotation or tilting mechanism causes a hazard, there is a means to prevent this movement and cause the load to be fixed in the predicted position, and this point it is very important.

It should also be kept in mind that on top of some lifting beams, also moving parts are used, these types of beams may have an eye pads that is mounted in the length of the beam. When carrying the load, each moving part must be fixed at its place.

In addition, when the distance between these moving parts is controlled by a power source, some protective devices must be provided to prevent crushing and shear damage in accordance with the requirements of BS EN 349: 1993 + A1: 2008 to be used.

All of the devices mentioned above are used to keep moving parts of the lifting beams in a place under load. For each of these devices, up to a maximum angle of 6 degrees should be considered for lifting beam.

It should also be noted that if these devices work with frictional force, this frictional force must test at least twice friction forces is at least twice the force due to the weight of their parts and with a workload limit for the maximum possible tilting angle plus 6 degrees.

1. The restraining device can be confirmed with the same calculation or testing as the basic structural calculations. Each of these methods is done in the following order: Calculation – All criteria referred to in Section 13 should be considered in the calculations. But it should be kept in mind that if the beam may tilt, you must add 6 degrees of maximum tilting angle to the beam and then the analysis should be done. In addition, machines that operate on friction must have a minimum of two time the force by taking into account their self- weight of the part and working load limits for the maximum tilting angle, plus 6 degrees.

2. Testing – In order to perform the test, in addition to the following procedure, all criteria described in Section 14 must also be observed. For moving part locked in position and by means of its locked mechanism, the force equal to two WLL times shall be tested, taking into account the manufacturer’s criteria, at least 1 minute at a 6-degree angle higher than the selected criteria.

 The test must be performed in both directions on the horizontal axis of each lock position. Consider that the moving part of a position is not already set and locked using friction; in these conditions, a test must be done at the two extremes of travel as well as for the one middle sections.

A qualified person must check the moving parts and the locking mechanism after removing the force from moving parts. In this situation, if the mechanism of the part and load lock is tolerated without slip, deformation or failure, then the test can be accepted.

In addition, at the time of load release, there should be no visible defects and the device must still operate freely.

16. Verification of ancillary items

In most lifting beams, supplementary lifting accessories have been used to connect the load to lifting beam or lifting equipment.

Slings, swivel hook, magnets, hooks, grabs, clamps, fabricated plate hooks and vacuum lifters are accessories that are used in lifting beams. When purchasing auxiliary equipment used for lifting beams, consideration of some information such as EC Declaration of Conformity, manufacturer’s certificate of validity, usage instructions or maintenance should be include in the technical file in order to accurately assemble to the lifting beams.

The instructions for using these accessories should be supplied with the instructions for assembly the l lifting beam or combine with the assembly instructions, so that they can be cited and referenced during repairs and maintenance. If there are any other cases, it should be approved by reference to a harmonized standard. These common standards are BS EN 13155, BS EN 818 and BS EN 13414.

17. Attaching the lifting beam to the crane and load

In order to separate or uncoupling accidentally, the connections must be locked to the crane or load well before the load is lifted. For example, bolts, nuts, cotter pins, and the like can be used. If lifting beams using suspect parts, an additional supportive shield should be provided to ensure that damage to the load or damage occurs when coupling or uncoupling to or from the crane.

If lifting beams were used of moving parts during which could be traversing along the beam, they should be used as a shield to protect the moving parts of the beam at each end in order to prevent them from falling off.

Meanwhile, lock-ups should be used in this lifting beam to lock them in position when they are under load. Of course, it is possible to use locks to locate attachment points by specifying locks that are specified for the operator.

18. Beam markings and Identification

One of the remarkable parts that includes a lot of weight of lifting beams is the self-weight of the lifting beam or spreader, and because of this reason it’s important to calculate it at calculation time.

They are usually used to mark lifting beams or spreader with its self-weight. In the case of permanent assembly beams, such as magnifying beams, we can calculate the weight of the entire assembly structure.

For each lifting beam or spreader, a unique identifier must be used. Undoubtedly, each lifting beam or spreader have their own accessories and ancillary, such as slings, hooks, and shackles etc., which are the detachable parts of the machine, although they are mainly assembled.

For this reason, in this type of device, for marking, each moving piece must have its own ID mark or identifier.

At the time of the certification of the lifting beams or spreader, the certificate issued must cover all parts of the assembly, in which there is a list of main identifiers and associated identifiers.

Some items are multifunctional and multipurpose and assembled for different purposes and accessories selected by the rigger for the particular application. However, you must still issue an ID and a unique certificate for each accessory.

19. Markings

Information that should have lifting beam device:

• Manufacturer’s specification includes manufacturer’s name and address
• Serial number of the device produced
• CE mark
• Production Year
• Total assembly mass
• Maximum working load of the machine in kilograms or tons

Note 1:

Sometimes the maximum workload depends on the kind of configuration of the lifting beam, in which case each operating position must be determined with a load plate indicating, which is best used to represent it, use a chart or table to be specified for each work load configuration.

Note 2:

If it is unclear the orientation of the lifting beams, it should be well indicate on marking. For example, you can use a arrow to do this.

Note 3:

Sometimes lifting beams are fitted with fork lift truck pockets. It should be borne in mind that in such cases, these pockets allow the fork a lift truck, lifting load by lifting beam, or easily move it from one place to another.

No matter what the goals are, it’s really important to be well marked.

20. Considerations for headroom

Sometimes for use with a double girder crane, a lifting beam or spreader is used, and the upper limit switch must be adjusted precisely to make the block lower between the girders rise.

This helps a lot to lifting beam that before limit switch operate, foul the girders. It is also necessary to set a limited switch or a secondary operation limitation. You should not only trust the operator in this field.

Bear in mind that lifting beams and spreader are the same as with all devices and equipment with limitations. However, each of these devices has many advantages, and each one has a way to handling loads, which is not easy to do with other devices.

21. Storage.

At times when there is no need to use lifting beams, it is very important that it can be stored easily so that no damage can be prevented, and its stability is maintained. When lifting beam as a stability, it should be prevented tip over and should not be tilted more than when tilted to angle of 10 degrees in any direction.

This structure can be achieved by adding additional equipment, such as standing or by adding feet to the design

If any of these devices has accessory or ancillary equipment, then they need to use the proper design features to ensure they are effectively protected from the device.
It also has to open the equipment from the device and store it separately. There should also be a solution for identifying and attaching equipment to devices if more than one lifting beam or spreader is considered.

22. Instructions for use and maintenance.

Every lifting beam must have an instructions for maintenance. In this regard, it is possible to use the solutions provided by the Engineers Association for lifting equipment in the form of information safety leaflets, and to develop a complete document complying with all requirements. In the meantime, consideration should be given to refusing to issue a maintenance certificate to the SI 8.2 requirements for lifting beams and spreader.

Modular lifting beams maintenance instruction should include all details related to the settings and loads to be secured. Accordingly, it is better to use the exact assembly drawings.

Considering the above, if there is no clear orientation for lifting beams, information should also be provided in this regard, and simpler layouts for the method of work should be re-presented.

23. In-service inspection of lifting beams

LOLER considers lifting beams as an accessory for lifting and believes that they should be examined every 6 months once they are scheduled (according to the LEEA 032 manual) and Or after exceptional circumstances

In conducting these exams, you should see:

• The device must have a clear and accurate identification number
• Check that there is a clearmaking of SWL
• The main body of the beam should not be corrosion, fracture, cracks, wear or other problems such as bending and
• Weld connections should be checked to ensure that they do not leave their buckling or corrosion.
• Check the bolts to ensure that they are attached and cracked or dropped and make sure that the bolts and nuts are used correctly.
• Check carefully that any connection is properly installed
• Be careful that any shackles fitted not to distortion, nicks, gouges or wear
• Make sure all shackle pins are set with a nut or pin.

Keep in mind that any fear lifting device may require additional visits and checklists at the time of inspection, and this list is not exhaustive.

24. Verification of repaired and modification lifting beams

Over time, with the use of lifting beams due to overuse or excessive use, they will suffer and will definitely require repairs.

Whenever lifting is damaged and needs to be repaired, the cause of the damage should be checked and a report drawn up. Occasionally these equipment may not be suitable for the intended purpose of the machine and require changes to the device or replacement of the device.

Repair and verification due to in-service wear and tear

It is best to get the main design advice specification consult when lifting beams needs to be repaired.

If access to the main consultant was not possible, a person should be selected to repair the full responsibility for repairs and ensure that the material and the correct parts are used to repair the machine. This requires knowledge and information about the applications that the lift is used to them.

All repairs and details must be recorded and stored in the form or job card for the device, so that it can be viewed if necessary and the repair records of the lifting beam are accessible.

After repairs, the repair and equipment must be checked by the qualified person. If repairs are of major repair type, lifting beam requires NDT or should be load tested again.

Modification and verification

Over the life of this lifting beams, this device is modified to a lot, and this depends on a variety of reasons.

Occasionally, the product with which it is loaded may change, for example, the need for different distances between lift points or weight. Whenever changes are made to the lifting beam, these changes should be carefully observed and documented in product design specifications, test data and technical files.

If this information is not properly recorded, it is imperative that the person responsible for the lifting beam modification is prepared in order to reduce the risk, some aspects of the design.

For example, the responsible person may consider the lowest grade of steel for the purpose of calculating. Therefore, when the repair is done, it is necessary to consider the construction of new equipment as a second-hand component, and it is necessary to observe some of the parameters described in sections 8-19 of this manual. Finally, a Declaration on Compliance with the EC for Lifting should be prepared.

25. Our services

It’s no different whether a jet fighter or luxury yacht, a Printing Press, a museum exhibit or even a Rubbish Skip, what’s important is that you want to do it safely.

Our complete team and professional engineers with domestic design and production team with more than several years of experience and backing, which has been used an combination of innovative and knowledge in the field of lifting solutions, known as an extremely valuable resource for all kinds of lifting in Iran.

All of our processes are based on ISO 9001 and our membership in the Association of Equipment Engineers has made Jamin Company one of the best and strongest companies in the field of design and construction of all kinds of lifting in Iran. Which always provides its customers with the highest safety and quality equipment.

Today, Jamin’s lifting beams throughout Iran and the world are used to lift thousands of tons of equipment and loads of shipping companies, construction companies, Aeronautical, offshore, logistics, industrial companies, and so on. Has been able to introduce as one of its prominent brands in Iran and the world.

As one of the main members of the Association of Equipment Engineers, we are required to make all the standards defined in the design, construction and testing of the types of lifting such as Spreader Beams, Lifting Beams and Lifting Frames with care and provide the customer with the necessary documentation.

Even this feature exists in Jamin Company to perform a proof of load test on new customer equipment and repair or modification it to the customer.

Special Note:

In order to test the load of new equipment retrieval, where we do not have a contractor to calculate it, we have provided a report of proof load test so that the person in charge can easily refer it to the technical file of the machine.

The document refers to topics such as item descriptions, identification symbols, manufacturer names, proven loads, test results, etc., along with their deviations.
The responsible person will be responsible for maintaining the integrity of the design, construction and use of the device. In fact, the person in charge is to issue conformance declarations, perform SWL and CE labels, and prepare instructions for safe use of the machine.