For the duration of the next few paragraphs we're going to be discussing Jib Cranes and the various styles they are available in; We will even strive to offer guidance on how to choose the right Jib crane for your requirements, getting them installed, repair and inspections of your jib crane and many necessary safety guidelines whilst using Jib cranes Jib cranes are in addition known as, swing jib cranes, slewing jib cranes, pillar jib cranes etc. A jib crane is a style of crane where a horizontal member (jib or boom), supporting a moveable hoist, is fixed to a wall or to a floor-installed column. The jib may swing by an arc, to offer further lateral movement, or be fixed. Jib cranes can be used within a variety of applications, regularly utilised in factories, warehouses, industrial premises, dock yards, ships, building sites as well as on military vehicles to name but several. Jib cranes are either floor or wall/column mounted, however can be moveable, cantilevered, under braced or over braced, but the main structural components stay the same, a vertical column plus the horizontal arm or boom and the over or under brace. Floor / foundation jib cranes mainly have higher load ratings than wall mounted jibs. Jib cranes usually have a hand driven rotation whereby they move in an arc, up to 360 degrees, the load can also be hand traversed down the beam, however it is possible to obtain electric rotation and traverse actions if needed. The hand powered function uses a push and pull traverse movement to reposition the load from the centre to either end of the arm. The lifting and lowering of the load is typically done by way of a hoist, either manually or electrically powered. A Jib cranes arm does not have to swing; it can also be manufactured in a fixed position. Ground mounted jib cranes and wall mounted jib cranes are often used to cover precise work locations, making the lifting as well as manouvering of difficult loads safer, simpler and more rapidly. Jib cranes can typically be manufactured to suit your requests/specifications, in addition to various capacity ratings frequently starting with 50kg to five tonnes. Jib cranes possess 3 major features, the primary being that they always rotate they also elevate and let down loads and traverse the load (moving across the beam). Jib cranes might be floor mounted, wall mounted and occasionally free standing. Floor or foundation mounted jib cranes produce higher load ratings than wall mounted jib cranes. A cantilevered jib crane might have full or limited rotation. Jib cranes are regularly used along with electric hoists, furthermore are for interior use. All Jib cranes need to be manufactured to BS standards. and should come complete with declaration of conformity and CE mark, marked with SWL and ID information. Manual or powered hoists are usually available if necessary, along with the option of isolator and festooned suspension brackets and wire if required. Below we have listed various chief information for you to help select the correct Jib crane to suit your needs, installing and commissioning, ways to store and handle the Jib cranes, and helpful safety information. This information is of a general nature only covering the important points for the safe slewing of Jib cranes, It may be necessary to supplement this information for specific applications. Selecting the Right jib crane FOR your Requirements:- Jib cranes can be found in a variety of capacities, dimensions and style possibilities, pick the Jib for use and arrange the lift taking the following into consideration:- Form of Jib crane- underbraced, overbraced, floor or wall mounted, capacity, height and length. Slew- angle of slew, 360°, 180°, or other push/pull, hand geared or power slewing. Type of block and trolley to be used The need for slewing stops. INSTALLING Stick to specific information for erection issued via your provider (better still get them to install it) since these will vary with the design used. The general safety and stability of the Jib crane is dependent upon its foundations or supports. When erecting to an existing structure it is vital that the superimposed forces are assessed by means of a qualified engineer. Similarly free standing Jib cranes should be mounted onto an appropriate foundation and a properly qualified person needs to be consulted, In the case of the Jib crane being clamped to upright structural members, measures should be taken to avoid the clamp fixings from sliding downwards. At all times:- Store and handle Jib cranes properly. Inspect the Jib crane, block and accessories before use and prior to placing in storage. Place Jib arm so that the lifting machine is exactly above the load. Take the weight of the load gently. Ensure the travel path free from debris before slewing the crane. Push instead of pull the load whilst slewing the Jib arm. NEVER:- Shock or side load Jib cranes. Try to drag loads across the floor. Let people to pass under suspended loads. Place ladders or climb on unrestrained Jib arms. STORING AND HANDLING JIB CRANES:- Whilst not in employ Jib cranes must be positioned so as to not present a hazard to persons, possessions, vehicles etc. within the zone. It could possibly be necessary to make fast the Jib arm to prevent movement taking place as a result of winds etc. If the Jib crane isn't in frequent use it is advisable to remove the lifting device for separate storage, where this is impossible or desirable the appliance needs to be parked somewhere it will not cause a hazard. Above all remember these central points; USING JIB CRANES SAFELY:- 1. You should not under any circumstances use defective Jib cranes, blocks or accessories. 2. Avoid swinging loads, and push rather than pull on suspended loads. 3. You should not let trolleys run into into the stops since the load may whip outwards consequently increasing the effective radius and so the resultant loads imposed on the mechanisms and structure. 4. Before moving the Jib arm or the suspended load ensure you have a clear picture of your travel path and that it is free of any obstructions. 5. Position the Jib arm carefully, the block hook must be directly over the centre of gravity of the load. 6. Never use the Jib arm or device to drag loads along. 7. Procure the load gently and avoid shock loads. 8. Similar care is needed when lowering loads as hasty loading/unloading may produce the Jib arm to whip. IN-SERVICE INSPECTION AND MAINTENANCE:- 1. The maintenance requirements can be combined with the ones from the lifting appliance. 2. The running surface of the track must be kept clean and free of rubbish. 3. On a regular basis examine the jib crane and in the event of the following defects, refer the jib crane to a competent person for thorough examination and repair as required. Structural flaws Damage Distortion or cracked welds Movable or absent bolts Damaged or absent runway end stops Problems in slewing or jib arm slews on its own Any other noticeable flaws or operational difficulties 4. Bolts and fixings need to be checked to make sure they're tight and if required re-torqued. 5. Lubricate bearings in addition to pivot points 6. Where the slewing motion is provided through manual gears or powered drive, the geared wheels and drives have to be kept in excellent order and well lubricated.
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Here we talk about Jib Cranes, their many combinations, how to pick out the precise type of Jib crane for you; how they may be used ,and many vital safety guidelines.
Lifting Equipment direct has provided many types of lifting equipment, Jib crane, swing jib crane, lifting equipment for many years to trade and industry, for more information please visit our lifting gear web site our team are always ready to help.
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