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Hammerhead crane

The "hammerhead", or giant cantilever, crane is a fixed-jib crane consisting of a steel-braced Tower on which revolves a large, horizontal, double cantilever; the forward part of this cantilever or jib carries the lifting trolley, the jib is extended backwards in order to form a support for the machinery and counter-balancing weight. In addition

Self-erecting crane

Self-erecting cranes, generally a type of Tower Crane, also called self-assembling or "Kangaroo" cranes, lift themselves off the ground using jacks, allowing the next section of the tower to be inserted at ground level or lifted into place by the partially erected crane itself. They can thus

Rough terrain crane

similar to a crawler crane. In a rough terrain crane, the engine is usually mounted in the undercarriage rather than in the upper, as with crawler crane. Rough-terrain cranes have high mobility and can work best if combined with the operation of a Tower Crane

Tower crane

Tower Crane is a modern form of balance crane that consist of the same basic parts. Fixed to the ground on a concrete slab, tower cranes often give the best combination of height and lifting capacity and are used in the construction of tall buildings.

Giant Cantilever Crane

Also known as a hammerhead crane, the giant cantilever crane is a fixed jib crane consisting of a steel braced Tower, on which revolves a large horizontal double cantilever. The forward part of this cantilever or jib carries the lifting crab, and the jib is extended backwards in order to form a support for the machinery and counterbalance.

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 as lifting cranes. Cranes are not permanent structure. In fact it is a temporary structure either fixed in the ground or mounted on certain

Tower Crane

A Tower Crane is used to build very tall buildings. The crane be on the ground or on a floor in the building. As each floor is built, the crane is moved up. Tower cranes are one of the most important device that is used for the construction of huge buildings.

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

FAQ About Tower Crane

  • Types of Cranes

    • of lifting operations, utilisation factors and degree of mobility required. Crane types can range from a simple rope and pulley or gin wheel to a complex tower crane but most can be placed within 1 of 3 groups namely mobile, static and Tower Cranes. Where Are Cranes Used? Cranes are used all over the world. They build tall skyscrapers in large cities. And, they help farmers in rural areas. Cranes are used near large bodies of water. They load and unload ships. Cranes are built

  • New requirements about crane maintenance and competent inspecting person

    • What changes have been made affecting crane maintenance and inspection? Owners of mobile and Tower Cranes must now declare on plant registration application and renewal forms that their cranes have been effectively maintained and inspected by a competent person. What are the new requirements for cranes? For new applications of plant registration,

  • Construction and Maintenance of Cranes and Lifting Appliances

    • safe and correct procedures to be adopted to ensure the correct erection or dismantling sequence. In these cases manufacturers instruction manuals must always be available and followed. This is particularly relevant in the case of Tower Cranes where erection and dismantling must be carried out strictly in accordance with the manufacturers instructions. The erection of jibs on cranes, especially mobile cranes, must follow the sequence described in the manufacturers

  • Stability of Cranes and Lifting Appliances

    • be used on a slope or on uneven or soft ground, precautions must be taken to prevent overturning. This can be done, for example, by reducing the slope, levelling the ground or by using suitable supports. If a situation occurs where a Tower Crane or other crane which needs portable ballast for its stability has new anchorage or alterations of the ballast materials, it must be tested before use. This test must be made so that maximum pull is applied to the anchorage or ballast,

  • Tower Crane Superstructure

    • and easy for man-machine interaction. Hydraulic System Electronic proportional control, with combination of close/open type circuit, constant power and variable displacement pump system. Hydraulic system: winch, luffing gear, slewing gear, Tower jib backstop, travel gear, auxiliary assembly system. Features:winch:lulling gear, travel gear are of open type system, main pump is constant power and variable displacement pump, variable displacement by hydraulic pilot control, with function

  • Tower Crane Carrier

    • Tower Crane carrier comprises car-body, crawler track, and travel gear. Car-body and crawler track is inserted for connection, crawler track extension and retraction is driven by hydraulic cylinder. When transporting, crawler track needs not

  • Tower crane lifting boom

    • Tower Crane lifting boom comprises main boom and fixed jib, the structural type is lattice structure of four tubular chords with intermediate equal section and two end variable section, main boom chord and web rod are made of domestic high quality

  • 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

  • YGMT Crane types

    • Fuel Crane etc. Dry coke Quenching Crane: Processing capacity from 56t/h to 140t/h (corresponding with the coke furnace of 4.3m3 , 6m3 and 7.63m3 ) Multifunctional Crane Bridge Girder Erection Machine CC600-CC2000 Crawler Crane, Tower Crane and Non-standardized Crane etc. Designing and manufacturing Cranes that customer specially required

  • Cranes, lifting appliances and fork lift trucks

    • load whilst the load is secured to the suspended hook or other device. The following machines are cranes within the meaning described above Mobile jib cranes Overhead travelling cranes Lorry mounted cranes Derrick cranes Tower Cranes Container cranes Portal jib cranes A machine used to raise persons to elevated positions for the purposes of working on road lighting equipment etc., where the persons are standing in a working platform constructed on the

  • Crane Lifting Operations - Operators of Cranes and Certain Lifting Appliances

    • An operator who has not been certificated may operate such a machine for training purposes provided he is under the direct and constant supervision of a person who has been so certificated. It does not follow that a competent operator of say a Tower Crane, will automatically be competent to drive a mobile jib crane. The competency of a driver will depend on his ability to handle the particular machine which he is operating. The following are some of the factors which should be considered

  • Crane History

    • where most cranes were used in cities with narrow streets, cranes tended to be built in the form of tall, slender towers, with the boom and the operator on top of the tower. Because quiet operation was important in crowded cities, these Tower Cranes were usually powered by electric motors when they became widely available. In the United States, cranes were often used in locations far away from residential areas. Cranes tended to be built with the boom connected to a trolley, which

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

    • crane has the advantage of causing no obstruction in the work area. Cranes used in construction often perform a variety of tasks and must be controlled by highly skilled operators. Construction 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

  • News conference addresses concerns over tower crane safety

    • In the wake of multiple Tower Crane accidents within the last year, a news conference dedicated to concerns about the overall safety of tower cranes was held in Washington, D.C. The Specialized Carriers & Rigging Association’s executive vice president

  • FACTORS BEHIND THE SELECTION OF CONSTRUCTION EQUIPMENTS

    • researchers have worked to develop a method to assist in equipment selection and, consequently, different models have evolved over the years. For example, there are optimization model, graphics model and database-centred models to select Tower Cranes. Different expert systems have also been developed to assist in equipment selection. Finally. there are artificial intelligence-based models. Harris and McCaffer (2001) have developed their equipment selection model based on

  • Jacking Towers

    • Jacking Towers are used primarily for vertical movement of large loads in tight quarters or out-of-the-way locations where a large crane may not be suitable. There are two well-established types: those which push the loads up can be called push-jack systems,

  • Mobile Cranes

    • machines-at odds with European sensibilities that favor constraint-fall in line with the American ethos. For better or worse, traditional American mobile cranes put the operator in full control. The European approach, established first with Tower Cranes but now applied at large, is to take that discretion away from the operator by modulating power and building in automated limits to the crane controls. In the European Union itself, the attitude is codified in the Machinery Directive,

  • Mobile Crane Tower Attachments

    • Some older mobile crane models can be equipped with an optional front-end attachment composed of a fixed vertical Tower pinned at the position on the superstructure where a boom is ordinarily mounted. A luffing boom is affixed at the tower top, and ajib is sometimes fitted at the end of the boom. Towers and booms are made up of inserts of various lengths

  • Tower-mounted crane

    • three motions: the hook is raised and lowered by means of a winch and fall, carried in a circular path by the swing gear, and carried in a radial motion by either luffing the jib or rolling a trolley carriage on its underside. The simplest of Tower Cranes have only these motions, but more complicated arrangements include mechanisms that allow the base to roll on a track, the crane to change elevation by climbing, or the jib to articulate on a hinge point. In the twentieth century,

  • CABLE CRANES

    • CABLE CRANES The taut-linc cableway crane consists of two Towers suspended between which a track cable of the locked construction is serving as a bridge structure. A carriage with a handling attachment travels on the track cable with the aid of a haul rope and a winch. The haul rope is revved through sheaves

  • Limiting Tower Crane Operator Fatigue

    • Operators and contractors both benefit from 72-hour seat policy When operators sit in a Tower Crane cab for 16 hours a day, a lot may go through their minds—and the longer they sit there, the more distracted they may become. Combine that with the constant radio chatter and directions given by the signalperson, and operators will no

  • Tower Crane

    • [caption id="attachment_38" align="alignleft" width="360" caption="Tower Crane"][/caption] Tower Crane Key Specification ·  Square shaped structure of steel tube ·  Mian color: yellow ·  Function: hoisting ·  Attached devices: generator, reducer, driver cab, cable, counterweight ·  Certificates awarded:

  • Luffing Tower Crane

    • [caption id="attachment_42" align="alignleft" width="360" caption="Luffing Tower Crane "][/caption] Luffing Tower Crane with Maximum Load of 16t and Working Radius Ranging from 15 to 60m Luffing Tower Crane Key Specifications/Special Features: Maximum Load: 16 T Maximum working range: 60 m Tip load: 2.9 T

  • Topless Tower Crane

    • The mechanisms of topless Tower Crane adopt domestic famous factory products, reliable performance, good governing performance and shocklessness [caption id="attachment_47" align="alignleft" width="360" caption="topless tower crane"][/caption] Topless Tower Crane Key Specifications/Special

  • Self-Raising Tower Crane

    • Self-raising Tower Crane QTZ, which is a new-style elevating machinery specially designed for the construction of tall buildings and equipment installation, is a type of self-raising multi-purpose tower crane equipped with level arm support, and it allows trolley

  • Topless Tower Crane For Sale

    • Specifications/Special Features: ·  Max load 17t (17m) ·  Jib length 75m ·  Free standing height 60m ·  Mast section 2*2*3m ·  Tip load 2.6t (75m) Advantages: ·  The section of the jib is much larger than the standard topkit Tower Crane, hence the jib is more studier. ·  When there is need to place many cranes in one area, with over lapping jib, height of the 2nd crane required will only be 1-2Mtrs higher than the first crane. In normal cranes, this height needs to be

  • Popular Construction Equipments or Construction Machineries

    • in roads and construction sites. Rotary Tiller: This equipment is a motorized cultivator with a rotating blade. It is mainly used to work in the soil. Crane: A crane is used for lowering and lifting materials. They are mostly temporary Tower structures equipped with pulleys and cables and used in construction sites. Drag line excavation systems: A popular heavy construction machine used in surface mining and civil engineering. The smaller size is used for port and road construction.

  • Tower cranes

    • [caption id="attachment_234" align="alignleft" width="241" caption="Tower Crane"][/caption] Over-long boom of tower crane is (50/55m),wide range of coverage. Heavy in section of mast section(1600*1600 or 1800*1800), good steel performance,complete tower crane is stable and little swing as load.Main material of crane

  • Crane Gantry

    • of 1st century Rome, which depicts a monument being built with a sort of crane, that cranes were used in medieval shipyards and ports in Poland. The various types of cranes in common use are railroad cranes, mobile cranes, telescopic cranes, Tower Cranes, truck-mounted cranes, rough terrain cranes, crawler cranes, loader cranes, floating cranes, gantry cranes and aerial cranes. A crane mounted on a railroad car or on a flatcar is known as railroad crane. Mobile cranes are the most basic

  • Tower Crane For Sale

    • Function: hoisting ·  Attached devices: generator, reducer, driver cab, cable, counterweight ·  Certificates awarded: CQM, CE, TS, ISO9001:2000 ·  A-grade 315TM Certificate for producing, installation, rectification, and maintenance of Tower Crane issued by General National Quality Inspection Bureau ·  Safety system: installation of jib, balance arm, and rotary tower are in side-plate pin bracket method ·  Advanced technology of the TOSHIBA Japan inverter has bee adopted for hoisting

  • Construction Machinery Types and Applications

    • excavator, multi-bucket trencher   rolling excavators, milling excavators, tunnel boring machine etc.. Shovel soil transport machinery Such as bulldozers, scraper, Loaders, vehicles, flatbed and the dump truck and so on. Crane Such as Tower Cranes, self-propelled crane, derrick cranes, grab cranes, etc. Compaction machinery Such as tire roller, smooth wheel roller, single-foot roller, vibratory rollers, compaction machine, tamping machine. Piling Machinery Such as drilling

  • Question About Tower Crane - 1

    • you hold? A. Centre rung of ladder B. Outside rail of ladder C. Does not matter where you hold on to If your crane is fitted with a lift, how often should it be checked and tested by a competent person? A. Six months B. Weekly C. Yearly Tower Cranes must be load tested in accordance with BS7121. How often should this be done? A. 6 years B. 4 yearly, after each erection of crane or after any alterations or repairs C. Yearly If your crane is fitted with a slip ring. This will prevent? A.

  • Question About Tower Crane - 3

    • adjuster C. Both A and B Why would you adjust trolley ratchet a couple of adjustment clicks at a time and operate trolley in between adjustments? A. To stretch job time out B. So you do not over tension trolley rope C. Both A and B Tower Cranes can work under special duties and carry out work with grabs according to BS7121? A. True B. False If your trolley rope breaks what would stop the trolley from running away? A. Stops at the end of the jib B. Rope brakeage safety device C.

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

    • 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? Equipment not covered includes: Machinery converted

  • BossBuyer Jib Cranes

    • isn’t exactly a DIY project. It takes blueprinted drawings and calculations to properly design, along with the right materials and tools. Variations of Jib Cranes: Hydraulic jib crane Cantilever jib crane Telescoping jib crane Tower jib crane Portable jib crane BossBuyer Jib Cranes The versatility of a BossBuyer Jib Crane is unmatched. Our Jib Cranes offer an extensive range of installation options and capacities, with the power to create the best material handling solution with

  • Bottom-Slewing Tower Cranes Structure and Configuration

    • The main parts of a typical bottom-slowing Tower Crane include: Undercarriage. Unlike top-slowing cranes, which are often configured without an undercarriage, bottom-slowing cranes would always have an undercarriage to connect between the ground or any other supporting surface and the slewing

  • Wind and Tower Cranes

    • Like most mobile rigs, self-erecting cranes can fold up on short notice. All other Tower Cranes must ride out severe storms. That requirement has induced engineers to identify two principal classes of load combinations germane to the design of these machines: hi-service loads act on the crane in operation, and out-oj-service loads occur

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Tower Crane, Swing Crane, Steel Plant Crane, Small Lift Crane, Single Crane, Tower Crane, Tower Crane Base, tower crane operation, Track Crane Rail, Trolley Crane,