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Floating crane

Floating cranes are used mainly in bridge building and port construction, but they are also used for occasional Loading and unloading of especially heavy or awkward loads on and off ships. Some floating cranes are mounted on a pontoon, others are specialized crane barges with a lifting capacity exceeding 10,000 short tons (8,929 long tons; 9,072 t) and have been

Jib crane

A jib Crane is a type of crane where a horizontal member (jib or boom), supporting a moveable hoist, is fixed to a wall or to a floor-mounted pillar, which is a style of cranes in case of which a horizontal portion called the boom or the jib supports a moveable

Loader crane

A loader crane (also called a knuckle-boom crane or articulating crane ) is a hydraulically-powered articulated arm fitted to a truck or trailer, and is used for Loading/unloading the vehicle. The numerous jointed sections can be folded into a small space when the crane is not in use. One or more of the sections may be telescopic. Often the crane will have a degree of automation and be able to unload or stow itself

Cranes

Development depends on infrastructure and infrastructure on heavy machineries. Of all the heavy machines Cranes acquire an important position as they are involved in the building and maintenance of huge projects. Crane machines are the huge tower like machineries having ropes meant to lift or to lower any heavy devices. Hence they are also referred

Jib Crane

Jib Crane is another important type of bridge construction machinery. Jib cranes derives their name from the horizontal beam, or jib, upon which the shuttle or hoist is mounted. With horizontal load-supporting boom fastened to a rotating vertical column,

Floating Crane

A floating Crane refers to a type of sea vessel which has a crane mounted on it. In earlier days, floating crane designs were nothing more than old ships transformed to include a huge crane mounted over the deck. Eventually, cataraman, semi-submersible designs

Mobile Cranes

Cranes are the huge tower like machineries having ropes meant to lift or to lower any heavy device. Cranes are not permanent structure. In fact it is a temporary structure either fixed in the ground or mounted on certain vehicles. Cranes are operated either through cab operator or through infrared or radio signals. The important equipments of the

FAQ About Loading Crane

  • Tower Crane Carrier

    • transported together with turntable and car-body. Car-body Car-body is made of high strength steel, H-shaped structure, with cross panel installed in the middle to strengthen its stiffness of torsion resistance, simple structure, high Loading capacity and well rigidity. Crawler Track Crawler track consists of track beam, drive sprocket, idler wheel, upper roller, lower roller and track. Crawler beam is box-shape structure, the connection place to frame is strengthened partially,

  • Tower Crane Safety Devices

    • When boom angle is less than 300, hoist limit switch stops boom lowering. Audio/Video Warning When crawler crane is moving and slewing, there is light and sound for warning. Tricolor Warning Lamp The lamp comprises 3 colors, when crane Loading is below 90% of total rated lifting load, "Green Lamp" lights on to indicate crane is running in safety area; when crane loading is in 90%-100% of total rated lifting load, "Yellow Lamp" lights on to indicate crane is dose to total rated lifting

  • Safe Crane Operations

    • separately the capacity of the crane even if the combined weight is with in the capacity of the craneNever wrap the hoist line around the load Never electrical load and/or hoist-limit switches or warning devices Start lifts slowly and avoid shock Loading Always place the hook directly over the center of gravity or the designated lifting point Use taglines to help maneuver the load Never use taglines to swing the loadBefore hoisting the load, check for loose parts that might shift or fallOn cranes

  • Cranes and hoists operating rules

    • area, ease the pendant up into the stop to prevent damaging the wire. Avoid side pulls. These can cause the hoist rope to slip out of the drum groove, damaging the rope or destabilizing the crane or hoist. To prevent shock Loading, avoid sudden stops or starts. Shock loading can occur when a suspended load is accelerated or decelerated, and can overload the crane or hoist. When completing an upward or downward motion, ease the load slowly to a stop.

  • Jacking Towers

    • or necessity such as when the load must be shifted laterally or the lift is from four points. When two towers are used, they may have to be anchored to a substantial moment-resisting footing or would need guys to restrain wind and side Loading during the operation as shown in Figure 2.48. If the towers are guyed, the guys should be preloaded because of the base fixity. Preloaded guys imply larger deadmen for anchorages than passive guys. Strand jacking offers precise control over

  • Hydraulic Telescoping Gantries

    • top. The lifting ability, structural strength, and structural stability of gantry legs depend entirely on the cylinders. Because lateral strength is limited by these cylinders behaving as a cantilevered column, the system is sensitive to side Loading Load pendulation, out of levelness, and side-pull from rigging operations can cause side loading. The second type of hydraulic telescoping gantry was developed to reduce sensitivity to side loading. These units have a single cylinder at

  • All-Terrain Carriers

    • (Figure 4). To achieve maneuverability, these cranes typically have all- axle drive and steering as well as crab steering (Figure 2.15). Many machines are furnished with sophisticated suspension systems that maintain equalized axle Loading on uneven surfaces while the crane is in motion or is static. New models are continuing to appear, and models with more than 800-ton (700-t) capacity are available. Though pick- and-carry operations are usually permitted, outriggers are used

  • Mobile Crane Tower Attachments

    • the boom. However, there are exceptions, in which case the crane manufacturer issues guidelines for securing a boom that cannot be fully folded down. Most tower attachments require a small assist crane, commonly a telescopic machine, for unLoading and placing tower and boom sections, and for assembling the rigging and the counterweights. Tower attachments utilize unique rigging and require many adjustments and the assembly of many special parts. Typically, assembly takes more

  • Tower-mounted crane

    • models. As a tower is a cantilever subjected to high-bending moments that shift and reverse, each tower leg must be designed to resist alternating compressive and tensile forces. The usual stress levels and the expected number of lifetime Loading cycles are not exceptional; thus leg design does not pose a difficult fatigue problem for designers. The connections between tower sections are another matter, being a perpetually nettlesome design and maintenance concern. Some designs use

  • Mobile Crane Ground Support Capacity

    • cellar excavation. Sheeting and bracing may bring about lateral displacement of utility lines or the washout of fine-grained soils around them. Utility lines have been known to rupture from this combination of soil disturbance and crane Loading. A common thread to most of these warnings is that disturbed ground can be problematic. When cranes are operating at a site, excavations and backfilling should be a concern that should ideally be brought under control by sound engineering

  • Crane Rigging a Load and Crane Overloading

    • the manufacturer's recommendations for the spacing for each specific wire size. Determine the center of gravity and balance the load before moving it. Initially lift the load only a few inches to test the rigging and balance. Crane OverLoading Cranes or hoists shall not be loaded beyond their rated capacity for normal operations. Any crane or hoist suspected of having been overloaded shall be removed from service by locking open and tagging the main disconnect switch. Additionally,

  • Heavy Duty Jib Cranes

    • Heavy Duty Free Standing Jib Cranes are very versatile cranes.  These Floor Mounted Jib Cranes are perfect underneath large bridge cranes, in open areas where they can serve several work stations, in outdoor applications such as Loading docks, or in machining and assembly operations where they can be overlapped with other jib cranes to provide staged coverage. Industrial Jib Cranes are available in floor mounted, and sleeve insert mounted styles Capacities from 500 to

  • Electric Hoist Failure Analysis and Treatment

    • the brake pressure spring fatigue long-term use, so that smaller spring force, shut down, the brake is not solid, you should replace the spring, re-adjust the braking force. 4, the motor temperature is too high Should first check whether the overLoading of hoist use, overloading lead to motor heating, long-term overload will burn the motor; motor is not overloaded, still hot, check the motor bearing is damaged; should also check whether the requirement to work the motor system of work, which

  • Construction Machinery Types and Applications

    • construction. It is widely used in construction, water conservancy, electric power, roads, mines, ports and national defense sectors etc. Generally speaking, all earthwork construction projects, road construction and maintenance, mobile crane Loading and unloading operations and a variety of construction required for the comprehensive mechanization of the construction works, known as construction machinery. It is mainly used for national defense construction, transportation construction, energy

  • Crane Component

    • stresses to crane runway. Either 2 or 4 drives can be applied. BossBuyer underslung trolley Type HF universal for underslung cranes and hoist trolleys BossBuyer double wheel underslung trolley Type HF 220 for high wheel loads and low flange Loading. Trolleys are designed to run on bottom flange of rolled steel beams or box girders. BossBuyer wheel bogie Type K universal equipment for rail-bound application in mechanical and plant engineering. Economical use of the boltable bogies

  • Wall Mounted Jib Cranes

    • - Tie Rod Supported 200° rotation. Wall bracket (tie rod supported boom). No supporting components are used under boom enabling full utilization of work area. Utilizes standard I-beam and single tie rod design to eliminate off-center Loading problems. Spans to 30 feet standard (longer spans available). This design is the most economical style of jib crane, provided overhead clearance or building column strength is not a limiting factor. Wall bracket kits include all components

  • Workstation Jib Cranes

    • 1,000 lbs. Standard spans up to 16 ft. Standard under boom heights to 12 ft. 360° rotation. Utilizes square or hexagonal base plate mounting secured by anchor bolts to your existing floor or a special foundation, as required by the Loading condition. (Anchor bolts by others, or as optional equipment.) Wall Cantilever Workstation Jib Cranes Capacities from 100 to 1,000 lbs. Standard spans to 16 ft. 200° rotation. Wall or column mounted (requires structurally adequate

  • Wind and Tower Cranes

    • crane is unmanned. Some cranes have an additional load case that applies only when the crane is in the process of climbing. Each load case combines the dead weight of the crane with an appropriate dose of wind and other relevant factors. In-service Loading is composed of the dead load, a permissible wind for operation, stewing torsion, the tilled load and impact. Out-of-service loading combines dead load and a storm wind that ideally should be suited to the locale where the crane is operating. Designed

Relative Searches

Loading Crane, Light Crane, Lift Crane, Jib Crane, Loading Crane, Long Truck Crane, Machinery Crane, Man Crane,