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Railroad crane

and accident recovery work. Although the design differs according to the type of work, the basic configuration is similar in all cases: a rotating crane body is mounted on a sturdy chassis fitted with flanged wheels. The body supports the jib (UK) (Boom (US)) and provides all the lifting and operating mechanisms; on larger cranes, an operator's cabin is usually provided. The chassis is fitted with buffing and coupling gear to allow the crane to be moved by a locomotive, although many are also self-propelled

Rough terrain crane

mobility and can work best if combined with the operation of a tower crane. These cranes are very good in rough terrain conditions and where frequent relocation of cranes is needed. They are available with both the lattice-type and telescopic-type Booms. The rough-terrain cranes can manage grades even up to 35o.

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 hoist and is generally attached firmly to a wall or a

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

Telescopic crane

A telescopic crane has a Boom that consists of a number of tubes fitted one inside the other. A hydraulic or other powered mechanism extends or retracts the tubes to increase or decrease the total length of the boom. These types of booms are often used for short term construction

Tower Crane

fixture at any major construction site. They are used to lift steel, concrete, large tools like acetylene torches and generators, and a wide variety of other building materials. Tower cranes have distinct advantages over conventional lattice Boom crawlers or truck cranes because the boom or jib looms high above the work site. The tower cranes jib can place its load anywhere within the radius of operation without interfering with the structure over which it swings. In addition, the operator

FAQ About Boom Used Crane

  • Wall/Column Cantilever Mount "I" Beam Jib Crane

    • crane when headroom is at a premium.Provide hoist coverage for individual use in bays, along walls or columns, and as supplements to an overhead crane or monorail system.Capacities from 1/4 ton to 5 tons, with spans up to 20 ft.Utilize I-beam Boom assemblies for heavier capacities and longer spans.

  • Truck cane standard upperstructure equipment

    • on or used as a momentary brake. An air operated 360º house lock is standard. RATED CAPACITY INDICATOR Rated Capacity Indicator with visual and audible warning system and automatic function disconnects. Pictographic display includes: Boom radius, boom angle, boom length, allowable load, actual load, and percentage of allowable load registered by bar graph. Operator settable alarms provided for swing angle, boom length, boom angle, tip height and work area exclusion zone.

  • Tower Crane Superstructure

    • web plate, with good overall stability. Turntable is key structural part linked with crane superstructure and crane carrier for load bearing, with many mechanisms arranged on it, such as operator's cabin, winch, lulling gear, engine, gantry, Boom and counterweight.

  • Tower Crane Safety Devices

    • Tower crane safety devices comprise: load moment limiter, turntable lock pin, Boom backstop, hoist limit switch, anemometer, level gauge, hydraulic overflow valve, counterbalance valve, two-way hydraulic lock, stewing warning lamp and travel warning lamp, etc. Load Moment Limiter Detection function: automatically detect boom

  • Crane History

    • still used in rural areas of Egypt and India. As early as the first century, cranes were built that were powered by human beings or animals operating a treadmill or large wheel. These early cranes consisted of a long wooden beam, known as a Boom, connected to a rotating base. The wheel or treadmill powered a drum, around which a rope was wound. The rope was connected to a pulley at the top of the boom and to a hook that lifted the weight. An important development in crane design occurred

  • Cranes,overhead traveling crane,Construction cranes,Tower cranes,Mobile cranes,Articulating cranes

    • cranes are divided into mobile cranes and tower cranes. Mobile cranes are mounted on trucks or crawlers in order to travel from place to place. An articulating crane is a mobile crane in which there is a joint between two sections of the Boom, allowing it to move in a way similar to a knuckle in a human finger. Articulating cranes are generally used to lift objects located a relatively short distance away, but with a wide range of motion. A telescoping crane is a mobile crane in

  • Gantry crane introduce

    • As a result of large-span cranes are mostly used to run the respective drive means to prevent operation of a crane skew have increased resistance, or even an accident. Gantry cranes lifting the car running in the tray, and some lifting trolley is a Boom-type cranes. Bridge on both sides are generally rigid outrigger; span more than 30 meters, the often rigid outrigger side, while the other side of the ball through the hinge and the flexible bridge connecting outrigger, so that the door frame

  • PORTABLE TRUCK-MOUNTED CRANE BOOMS

    • Another type of lifting equipment is the portable Boom attached to a flat-bed truck to load and unload material. This type of boom has comparatively little horizontal reach flexibility but does swing on a turntable support mechanism at its base on the truck. These booms are not designed for erection

  • Guy Derrick

    • on high-rise structures, but that work is mostly done now with tower cranes. Guy derricks may also be used for general rigging, stone quarrying, and construction of refineries and chemical plants. A guy derrick can be described as a Chicago Boom with its own integral column, called a mast, held vertical by six or more guy ropes, as shown in Figure 2.3. The guys radiate in a horizontal circle about the derrick and are spaced as evenly as site conditions permit. A common configuration

  • Hydraulic Telescoping Gantries

    • gantry was developed to reduce sensitivity to side loading. These units have a single cylinder at each jacking unit, but the cylinder is enclosed in and braced by a telescoping steel box structure called a left lxxxn (Figure 2,51 ). The stout Boom all but eliminates the threat of structural failure from side loading, but it does not make the gantry immune to overturning. Exposure to the overturning hazard can occur from side pull while tripping a load, particularly when there is not much

  • Truck Carriers

    • Figure 2.13 shows a carrier for a 300-ton model. It is still clear that this chassis is quite different from that of a standard truck. The largest units may have as many as nine axles. A variant is the so-called truck which has a telescopic Boom and stabilizers mounted on a more-or-less conventional truck chassis. The mounting must meet specifications for frame stiffness, weight, and axle limitations. A boom truck, rated for up to 50 tons and reaching as high as 180 feet (55 m), has

  • All-Terrain Carriers

    • First appearing in Europe during the late 1970s, the all-terrain crane now accounts for a majority of mobile-crane sales throughout the world. The carriers used on these telescoping cantilevered-Boom machines combine the high road speeds of truck carriers with some of the off-road capabilities of the rough-terrain crane. Large-capacity multiaxle models have appeared featuring the characteristics necessary to carry the all-terrain label:

  • Tower-mounted crane

    • tower cranes is gauged by a moment rating expressed as tonne-meters. The tonne-meter rating is obtained by multiplying ruled capacity in metric tons by the working radius in meters. This is done according to a method that averages a range of Boom lengths and working radii. The smallest machines used for light construction have ratings of about 20 meter-tons and the very largest in production exceed this by a factor of about a hundred. Most used for heavy construction are in the range

  • Mobile Crane Clearances

    • With each work cycle, a crane picks up a load, swings it and places it where needed. The path of both load and Boom must clear obstructions through the full range of movement. The boom must be long enough to raise the load to the required height without danger of collision between the load and the boom, but not so long that it will swing into nearby structures.

  • Mobile Crane Ground Support Capacity

    • to support a crane. Some load testing might be advisable, say by running trucks or heavy equipment across a backfill to see its effect. The crane itself could be used for a self-check by swinging the counterweight over the backfill with the Boom at minimum radius and with no load on the hook.

  • What Are Telescopic Cranes?

    • cranes which enable the easy mobility and transfer of cargo to the right containers, thereby providing utility in the best way possible. The main difference between a telescopic crane and other conventional cranes is that the former has a hollow Boom which contains several tubes fitted one side the other.  A hydraulic mechanism enables the elongating and refracting motion of the beam. Considering today’s fast paced development, it is but natural that cranes have started to be used extensively.

  • Mini crawler cranes

    • sites other cranes simply would not be suitable for. The cranes low headroom allows them to be used indoors or even underground. The powerful rubber tracked CX-8T with 360 degrees slew and 4 stage telescopic Boom, lifts 8 tonnes, yet occupies a footprint of only 3.48 x 3.48 metres. The compact size allows easy transport by air, water, rail and road. Advantages of mini crawler cranes Compact and Tough Suits

  • Jib Cranes

    • Jib cranes are a style of cranes in case of which a horizontal portion called the Boom or the jib supports a moveable hoist and is generally attached firmly to a wall or a pillar fixed to the floor. Commonly termed as crane jibs, these machines are either capable of moving in an arc or are fixed in a particular position. The

  • Oregon OSHA’s new crane standard for the construction industry

    • 2011. What equipment is covered? Oregon OSHA’s crane standard covers power-operated equipment used in construction that can hoist, lower, and horizontally move a suspended load – including, but not limited to: Articulating knuckle-Boom cranes Crawler cranes Derricks Mobile cranes Tower cranes The standard also applies to crane attachments such as: Augers and drills Clamshell buckets Concrete buckets Hooks Personnel platforms What equipment isn’t covered?

  • Wall Mounted Jib Cranes

    • cantilever jib. BossBuyer Wall Mounted Jib Cranes are available in two series: 300 Series Wall Mounted Jib Cranes – Cantilever 200° rotation. Wall cantilever (full cantilever design). Offers the greatest potential clearance under the Boom. Welded or bolted construction (depends on size of crane due to shipping considerations). Standard spans to 30 feet (longer spans available). Powered rotation is available on all models. Transmits less direct force to building column than

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