✅ KKT gantry crane 5 technical specifications

Features of the KKT-5 gantry crane

KKT-5 belongs to the category of lightweight gantry cranes with a lifting capacity of 5 tons and is successfully used in the railway sector, sea docks, industrial sites, repair and warehouse-type enterprises and to ensure the operation of conveyors.

This mechanism can provide high reliability of work associated with the movement, unloading and loading of goods at its low cost and low maintenance. In addition, the main difference of this gantry crane is the ability to work both in open areas and indoors at production bases, factories and warehouses. The safety of such equipment has been repeatedly confirmed by many years of practice.

The uniqueness of its operation lies in the ability to operate in a wide range of weather conditions from -40 to + 40? C.

Photo of gantry crane KKT-5

It is worth noting that the installation of such crane equipment requires the construction of crane tracks, which involve the construction of a crushed stone or gravel base with the laying of reinforced concrete or wooden sleepers and special rails on it. This applies to both outdoor operation and indoor operation. Particular attention is paid to the grounding of crane tracks and the installation of end stops. Since the crane operates with light loads, geodetic work and leveling of crane runways are not necessary in this case.

Recommended changes in crane electrical circuits

During planned repairs, the crane must be taken out for repairs by a person responsible for maintaining lifting machines in good condition, in accordance with the schedule of planned repairs with the issuance of a work order for work in electrical installations. Ultimate protection is provided by switch SQ.

Single buttons perform normally open and open with a mechanical return to their original position; The buttons have rear wire connections. The engine then runs idle for min.

Electrical diagrams of crane lifting mechanisms In Fig. Silver contacts are cleaned with a velvet file or chamois leather.

Before installation, the brush must be processed along the radius of the ring.

Flexible trolleys are made of copper wires stretched between supports, working with special current collectors. Low heating temperature of the resistances indicates an excessive number of elements.

The high speed electric motor is turned on during high speed operation.

It is not recommended to use sandpaper or glass paper for this purpose. Kone gantry crane. Loading timber.

Design

The KKT-5 crane is made in the form of a two-cantilever structure - a tubular beam bridge mounted on gantry supports. It can have a span of 16 to 32 meters and move loads to a height of up to 11.2 m. The mechanism moves by means of wheels equipped with flanges along the above-described rail tracks.

At the customer's request, it can be equipped with a cabin or controlled remotely directly from the floor using a remote control. The first method allows you to manipulate the crane, choosing the lifting height as accurately as possible, but requires the work of a qualified specialist.

The undoubted advantage of the KKT-5 crane, controlled by a remote control, is the convenience and absence of the need to register this mechanism.

Design and overall dimensions of the KKT-5 gantry crane

Often such a crane is equipped with an electric drive, which significantly increases its power, the speed of lifting loads and improves productivity.

The crane is equipped with a hanging-type lifting mechanism – an electric hoist, powered from a three-phase alternating current network. With the help of an electric hoist, loads are lowered and raised and moved along the crane bridge. The telpher is made in the form of a block mechanism that drives the gearbox, electric motor, hook and brake.

Like any other crane, KKT-5 can be additionally equipped with attachments that increase its productivity.

Electrical equipment for a gantry crane with a lifting capacity of 47 tons

A button with a mushroom-shaped pusher, pressed by the palm of the hand, is used for emergency shutdown of the linear contactor of the protective panel, instantaneous interruption of control circuits and quick stop of the crane, for which reason it is called an emergency switch.

To avoid network overloads, ballast resistances are introduced into the rotor control circuit, which reduce e.g. by increasing the total resistance.

Mounting the KKS crane The KKS crane is mounted using pulley hoists with a traction force of 50 kN without the use of other lifting mechanisms, fig. Three-phase AC asynchronous motors are marked with letters and numbers.

In the current protection circuit Fig. The permissible frequency of switching on contactors reaches per hour.

Crane diagrams and protection features

The cabinet with two lockable doors is made of sheet steel. Based on the principle of operation, there are two types of controllers: power direct manual control and remote control command controllers.

Thus, there will be a violation of Art. Electric drives of crane mechanisms operate in intermittent mode with a large number of starts per hour, provide a wide range of speed control of working movements, variable in magnitude and direction of workloads and must withstand significant overloads during acceleration, braking of mechanisms and their reversal.

Electrical security

It shows the elements necessary for its operation. Squirrel-cage motors of low power are started without additional devices, since their characteristics are softer than those of motors with a wound rotor.

When the final protection is triggered by opening the linear contactor of the protective panel, the electric motor is switched off and a mechanical brake is applied. Currently, almost all cranes with a lifting capacity of up to 50 tons are equipped with standardized cabins in which they install: an input device, a protective panel, power cam controllers or command controllers, a manual emergency switch, a voltmeter, block contacts for the hatch door, a loud bell button, a strike button, circuit breakers working and maintenance lighting, telephone if necessary, heating and ventilation devices. On the generatrix surface of the rotor there are longitudinal grooves in which the winding is located. Commissioning of the electrical circuit of the crane

Features of the KKT-5 gantry crane

Photo of gantry crane KKT-5

Gantry crane 5 t

Gantry crane KKT 5. Designed for loading and unloading operations and moving cargo. Used in a scheme with various load-handling devices, such as a grab, a magnetic traverse, pneumatic traverses, hooks, etc. They are used both with a cabin (rather rarely, mainly in hazardous industries) and without it using a control panel from the floor or radio , that is, remotely. To operate this equipment, it is necessary to have crane tracks and a power supply to the crane. KKT 5 has a simple but reliable design.

Price from 467,600 rub.

Delivery time from 15 days

3 year warranty

Questionnaire download

Design

Design and overall dimensions of the KKT-5 gantry crane

Often such a crane is equipped with an electric drive, which significantly increases its power, the speed of lifting loads and improves productivity.

Classification

The industry produces several types of cranes. The classification is based on the characteristics that are taken into account when creating it. There are the following settings according to purpose:

General purpose. These are loading cranes that can be found in open areas. They are used in warehouses and in companies that perform loading and unloading.
Construction and installation. They are indispensable when installing equipment. They are used in ports, industrial and construction sites, in the construction of bridges and other objects.
Equipment intended for servicing hydroelectric power plants. Here, cranes are used to lift the reservoirs of hydroelectric power stations; they are required for the installation of units. The devices are used in the repair of dams and sluices.

There is another classification. Depending on the design, cranes come with single-column supports; industry produces equipment with branched supports.

Cranes vary in type of metal structure. They can be tubular and truss; there are box-shaped devices and those with beam structures. There is a classification according to the type of span; the following types of gantry cranes are commercially available:

Double beam. They are used in all industries. They are used for loading and unloading and moving materials. Cranes are in demand at railway stations, they are required in river and sea ports, warehouses and industrial sites.
Single girder gantry crane. It has a simple design. The device consists of a beam and 2 supports, a cantilever trolley and a mechanism used to lift loads. Workers control it from the cabin or using a remote control located on the floor. A single girder crane is often required in warehouses, shipyards, and industrial sites. It is mounted where walls or ceilings cannot be used as support.
Consoleless. They are installed if a jib crane cannot be installed on the site. The devices have a simple design, but the speed of movement of goods is low.
Single-console. The crane consists of a bridge on supports. For its movement, rail tracks must be laid; there may be several gantry cranes at the enterprise. They are installed at different points of the industrial site and controlled from the cabin. If the spans are less than 25 m, they are installed on 1 of the supports or fixed on the bridge near it.
Double console. The devices consist of 4 supports and a bridge, which is a load-bearing element. It is made in the form of a lattice truss; it can also be made of 2 paired metal beams. The parts of the truss that protrude beyond the supporting walls are called cantilevers. This design differs from others in its increased strength, which allows double-cantilever cranes to move heavy loads. The sections of the truss that protrude beyond the support posts are called cantilevers.

For the needs of the enterprise, you can purchase mini-installations or a mobile gantry crane. It uses its own wheeled chassis to move; with the help of such a device you can move loads weighing up to 5 tons. Manufacturers produce mobile systems that move heavier weights, for example up to 10 tons.

Specialized enterprises produce different models of devices; an organization should purchase a semi-gantry crane. This is a lifting mechanism that is highly efficient. It is used in narrow areas where it is impossible to use other equipment.

The design includes a truss, which on one side rests on 2 supports; they move along a rail track. The movement of the other side of the structure is carried out along tracks. They are laid on supports or fixed to the consoles of buildings.

Container gantry cranes are machines for lifting medium and large-tonnage containers. Most often they are used in cargo terminals located within the boundaries of sea and river ports, and at railway stations. The installations operate in both manual and automatic modes. A semi-automatic operation option is possible.

Jib-gantry cranes are widely used in construction, industry and woodworking. The installations consume little electricity, which is why they differ from other types of lifting mechanisms. The cranes move smoothly along the tracks. The mechanisms last a long time, they are functional and reliable.

Gantry cranes - description, general technical characteristics

A gantry crane is a bridge type unit.

The horizontal beam along which the load moves is structurally related to the bridge group of lifting mechanisms.

The main difference is that the spacecraft can move on rails itself .

Externally, the KK resembles an assembly trestle, hence the characteristic name.

KSK-32

The gantry crane KSK-32 meets international safety and environmental requirements. The equipment lifts 32 tons. It is reliable and can withstand seasonal temperature changes. The mechanism works equally well in the summer heat and in severe frost.

The model is mounted outdoors and is used for loading and unloading. Thanks to the reduced descent speed, it is possible to perform work with high precision.

The design of the crane allows it to be self-installed. The units are used in construction; they are installed in docks, barns, and warehouses. The model is energy efficient and has a smooth ride.

Application and device of CC

Gantry lifting mechanisms are indispensable in places where access to other lifting equipment is problematic or impossible.

Occupying a minimum of space on the ground, the unit covers a large area for moving goods.

Application:

warehouse and industrial areas , cargo yards;
factories - testing grounds for the production of metal structures, reinforced concrete products (KKM-20);
transshipment of containers at freight stations, railway junctions, and seaports (КК-16/20);
work with logging , wood (LT-62);
installation of prefabricated industrial structures and equipment (KK-12.5);
maintenance of locks , dams, thermal and hydroelectric power plants;
in ships - and shipbuilding (production of large ships, fixation of hull parts during welding).

Gantry lifting mechanisms are equipped with those load grippers that correspond to their purpose.

Operation restrictions :

boundaries of the working area - the space inside the console (span);
CC cannot be used on sloping ground.

General diagram of a gantry crane with description :

crossbar

The beam can be lattice or solid-walled of different sections. It may have 1 or 2 consoles, or not have them at all (cantilever and non-console cranes);

supports - rigid, spatial, flexible or flat. If the spans are 5t) or the hoist (lifting capacity is 10t and requires the work of an experienced crane operator.

Cranes with this type of control are required to be registered with technical supervision authorities. The crane operator's cabin can be stationary or mobile .

The fixed one is attached to one of the sides of the crane and is recommended for short span lengths and lifting heights.

The mobile cabin is mounted on a mobile crane trolley, which is convenient for large span lengths and lifting heights.

The process can be controlled from the surface of the earth using a wireless or pendant control panel. This method is more often used in enclosed spaces with small cargo dimensions, with sufficient visibility from the floor.

Remote control of the mechanism does not require additional education for employees.

For gantry cranes without a cabin with a lifting capacity of up to 10 tons registration with technical supervision authorities is not required

Construction crane diagrams

The electric shaft ensures uniform loading of the engines when the bridge is misaligned and reduces wear on the flanges of the running wheels to a minimum.

For this purpose, the handles of the limit switches have mechanisms for returning to the starting position. The forceful descent of the load begins. Command controllers are mounted in the driver’s seat so as not to obscure the visibility of the workplace; Command controllers are a complete control panel.

The type of rolled product and its cross-section depend on the current consumed by the crane, the length of the line and the operating conditions of the crane. Now the descent speed depends only on the resistance value in the rotor circuit and the rectifiers included in it.

A special feature of overhead cranes controlled from the floor is the ability to access the crane for repairs and inspection only in specially designated areas equipped with appropriate inspection areas for mechanisms and electrical equipment. The working and zero positions of the handle are fixed using a ratchet mechanism; The latch has stops that limit the movement of the handle in extreme positions.

This unit is assembled on rails in the electrical cabinet above the crane operator's cabin. Then the low-speed winding is turned off.

Power circuits are indicated in the diagram by thick lines, and all other circuits are indicated by thin lines. When the magnetic flux disappears at the moments when the current passes through zero, vibration of the moving contact may occur. To prevent this, a short-circuited turn in the form of a brass frame covering part of the area of the magnetic circuit is placed in the slot at the ends of the yoke. Everything should be located in the first quadrant. It should be noted that the use of a flexible electrical cable simplifies the design of the current lead, reduces its weight and increases reliability.

The ends of the rolled products are joined by resistance welding. Squirrel-cage motors of low power are started without additional devices, since their characteristics are softer than those of motors with a wound rotor. With further pressing of the contacts, the movable contact moves relative to the stationary one and rubs against it, which ensures self-cleaning of the working surfaces of the contacts. Two brackets are installed on the right console, between which repair platforms are suspended.

In fact, the unit works with two magnetic controllers TA of the movement mechanisms of the crane and the cargo trolley, so it also includes the rectifier bridge of the rotor circuit of the electric motor of the movement of the A4 trolley. Control of the grab consists of moving the handle of the disconnector, which in the left position closes the circuit 8—71—70—7, including the starter coil KM tower crane liebherr 112, crazy relay

Light crane KKT-5

KKT -5 - To gantry Crane with T elfer (electric hoist), lifting capacity = 5 t . Used for work with light or medium loads (2-10t), in construction, industrial hangars, shipbuilding.

OPI, PBI and VBI (general industrial, fireproof, explosion-proof use) for any lifting operations with load weight ≤ 5t.

Gantry crane 5 tons - 2-cantilever, lifting mechanism - electric. tal, (3 phases, alternating current, voltage = 380V, current frequency = 50Hz).

Gantry crane KKT -5 - technical characteristics :

lifting height = 7.1-11.2m;
wind load - up to V degree (inclusive);
span = 6/9/12/12.5/16/18/20/22/25/32m;
current supply - cable drum, cable carabiner, trolleys (on special order);
weight = 16-50t;
lightweight KKT-5 works both in open areas and indoors at production bases, factories and warehouses;
control using a remote control.

Self-erecting gantry crane KKS -10

KKS-10 - two-console KK - modernization of the previously produced KKU-7.5 and KKU-10.

A bridge-type lifting unit on supports moves along the rails of the crane runway on wheels with flanges.

KKS -10 can be equipped with different working equipment :

hook - standard equipment;
grab - transportation of loading bulk cargo within the work site;
electromagnet - for working with metal.

Drawing of a gantry crane with its dimensions:

Crane span Lpr, m

Console departure Lк,	Total length of the crane Lcr,	12,5	4.2 m.	21.7 m.	16,0	5.1 m.	27.2 m.	20,0	17.3 tons
6.2 m.	7.8 m.	19.6 tons

The faucet is delivered disassembled. The product consists of:

The main beam (in case of a large length, it is cut into equal parts)

Support posts, which are also disassembled

Drive trolleys for crane movement

Electric hoist

Cabins, if the design allows for it

Instructions and documentation, etc.

Buy a 5 ton gantry crane

The price of this equipment depends primarily on its basic parameters and the selected additional options. Therefore, each faucet ordered from us is individual in design. In order to obtain information about the cost and production time, use a simple and convenient feedback form or call us, we will answer any of your questions represented by the company’s specialists - masters of their craft.