Tower crane KB-408 is special equipment on rails, which is used for mechanization construction works, at a height of up to 72.7 meters and with loads up to 10 tons.
Tower crane KB-408 is a construction mobile full-revolving rail crane with a slewing tower and a beam boom with a cargo trolley that provides vertical and horizontal transportation of building parts and materials. The crane is transported from object to object disassembled. Installation is carried out by our own mechanisms and with the help of a truck crane.
The KB408 crane belongs to the 4th size group of tower cranes and has the same main units with cranes of this group.
Sectional boom design. The design of the crane boom is made of metal pipes in the form of a lattice structure, the boom modules are interconnected using flange connections. Crane KB 408 can be mounted with an inclined boom. The reach is changed by moving the carriage.
The crane tower has a modular design. The number of tower modules on KB-408 cranes varies from 2 to 5 pieces. (depending on the version of the crane).
The device of the tower crane KB-408
Turntable and swivel mechanism
The KB-408 platform is identical in design to the KB-160. The design of the rotary mechanism has been changed - it looks like a roller circle (in one row) with a diameter of 2500 mm. In addition, winches, blocks and electrical equipment for the cargo trolley appeared on the crane.
Running frame with swivel vanes
Running frame with rotary weathercocks, portal. Similar to the KB-401 and KB-402 series.
Portal
The design of the portal and the frame of the KB-408 crane is identical to the design of the KB-160 cranes.
tower sections
inventory sections. Quantity on taps from 2 to 5 (6) pcs. (depending on the version of the crane).
Tower
By design, the tower is unified with some units of the KB-160 crane, with the exception of the design and equipment of the tower head. It differs in the length of the chain hoist ropes and the maximum possible number of installed inventory sections, as well as the design of the head section of the tower has been changed - now it has become collapsible.
control cabin
A unified cabin for high cranes is installed on this crane (installation at a height of over 20 m). On the base, first-born model, a unified cab for low cranes is installed (installation at a height of up to 20 m). Mounting methods are similar to KB-160, as well as other series of cranes from the KB type. It differs from the cab of the base model in a more advanced design, adapted for comfortable viewing at a higher crane height, and also differs internal content and equipment - improved insulation and heating panels. Additionally, it can be equipped with air conditioning.
Crane Boom
The design of the main boom is sectional. Made of metal pipes in the form of a lattice structure, the sections are interconnected using flange connections. A cargo trolley with a hook clip moves along the boom. The reach is changed by tilting the boom, as well as by moving the cargo trolley.
hook block
The hook cage is a two-axle suspension: two cheeks, two axles, on which blocks, traverses and a hook are installed on ball bearings. Additionally, there are metal outer protective covers for hook block blocks.
Technical characteristics of the tower crane KB-408
| Crane total weight (in working order), t | 95,2 |
| Maximum load capacity, t | 10,0 |
| Load capacity at maximum boom outreach, t | 6,0 |
| Boom radius, m | 6,0-30,0 |
| Departure at maximum load capacity, m | 16,0 |
| Load moment, (kNm) tm | 160,0 |
| Maximum lifting height, m (horizontal boom / inclined boom) | 46,6 / 57,8 |
| Total power el. engines, kW | 123,6 |
| Lowering depth, m | 5,0 |
| Tower crane speed, rpm | 0,65 |
| Structural weight of the crane, t | 54,8 |
| Load lifting speed max. mass, m/min | 36,0 |
| Maximum load lifting speed, m/min | 67,0 |
| Speed of smooth landing of cargo, m/min | 4,8 |
| Cargo trolley travel speed, m/min horizontal boom/inclined boom |
7,0 / 30,0 |
| Crane travel speed, m/min | 18,0 |
| Base, m | 6,0 |
| Track, m | 6,0 |
| Rear clearance, m | 4,35 |
| The smallest radius of the path (inner rail), m |
12,0 |
Video review of the tower crane KB-408
Tower cranes are special kind construction equipment, which is an integral mechanism for performing installation work on high. This type cranes differs from others in that it has a boom-type design, as well as a vertical arrangement of the operator's cab. The lifting and moving of goods is carried out vertically with the help of a special movable carriage, which is installed on the boom of the tower crane itself. designed to move along metal rails, which are usually mounted around the work area, so its movement in space is limited.
tower crane use
The domestic tower crane KB-403, as well as, is used on almost all construction sites, the height of which is about 30-40 meters. With the help of this technique, the rapid supply building materials on the upper sections of the working areas. The crane is able to unload arriving cars, as well as deliver cargo to a specific floor with subsequent delivery to the site.
This crane model can work with buildings up to 17 floors, while its boom is able to serve almost the entire perimeter of the house.
The crane can transport about 8 tons of cargo at a speed of 58 meters per minute. On practice maximum load equipment is practically not produced, therefore, the working weights are goods with 4-6 tons of weight. A tower crane is necessary for work at height, which is why the technique is so popular on construction sites.
Equipment performance
Crane characteristics (version B):
- total weight of the crane - 80 tons;
- rail track width - 6.6 meters;
- the highest traction moment - 132 t * m;
- maximum load capacity - 8,000 kg;
- maximum boom reach - 30 m;
- maximum lift - 54.7 m;
- hook lifting speed with load - 40 m/min;
- hook lifting speed without load – 55 m/min;
- average speed - 0.65 rpm;
- trolley speed – 30 m/min.
As with all tower cranes, the KB-403 A, B and C version has built-in sensors for controlling movement, wind amplification, and stabilization systems. Construction tower crane KB-403 specifications, which can compete with some foreign analogues It is used both for the construction of residential buildings and for the construction of industrial buildings.
dimensions
Some characteristics of the KB-403 tower crane may vary depending on its specific version, in particular, the overall dimensions in the standard technical performance are about - 57,000 mm x 30,000 mm x 6,000 mm. The height of the crane depends on the design height of the building itself, therefore, in some cases, its design may be reduced or, on the contrary, increased. The extension procedure is carried out in a semi-automatic mode with the help of special built-in winches and 4 specialist installers. Maximum amount plug-in sections can reach 5-6 pieces, while the weight of parts of the tower crane KB-403 can vary from 7 to 11 tons. The length of the working boom in the minimum reach is 30 meters. Data overall characteristics enough to serve the entire working area measuring 25x25 or 30x30 m.
Commissioning and dismantling
The construction tower crane KB-403 goes through a standard commissioning procedure before starting work. Even on the ground, specialists check each working unit and the key part of the crane for the absence of various faults or hidden deformations. After checking all structural elements delivered to the work site for its subsequent assembly. Before the assembly activities are carried out preparatory work, in particular, the ways of moving the crane are being equipped, as well as a special individual switchboard, which in the future will provide electricity to all working systems. The first main part is mounted on the rails using a truck crane.
The base chassis is fixed with wheel chocks. In the future, a tower is attached, which has special lifts and winches. An intermediate part is loaded inside the frame for building up, so the crane lifts independently, each time starting from the previous section. All parts are fixed with several bolts. Dismantling work is carried out in a similar sequence, while all working bodies are dismantled while still on the installed crane and lowered down. This allows you to pre-facilitate the design and increase speed. dismantling works generally.
Price offers for KB-403
For a tower crane KB-403, the price varies from 25 to 50 thousand dollars, depending on the number of sections and type technical filling. The total cost is affected by the condition of the crane, its appearance, the absence of various deformations and the presence of all documents. Cranes are subject to systematic mandatory checks, during which specialists determine its further possible operation. As a rule, a tower crane with a low cost can be problematic, in particular, the most common problem is the impossibility of paperwork due to the failure of one key part.
Transport options
Tower crane KB-403 is transported to the construction site in parts using trucks long lengths equipped with an onboard platform. Already at the construction site, the equipment is assembled from several parts. Enlarged body units are installed on vehicles that are operated to transport a tower crane. This is necessary so that the crane sections themselves have the necessary plumage area on the platform to ensure the safety of movement. Usually, all cars are accompanied by traffic police officers, since the width of the intermediate parts of the crane is 4-6 meters.
Cost and rent
Industrial tower crane KB-403 rent at a cost much lower than that of many modern analogues, so the equipment is very popular at domestic construction sites. average cost rent of KB-403 in large regions is about 35 - 50 thousand rubles, which is quite profitable for a certain cycle of construction work. Given that the cost varies from 450,000 rubles, then renting a tower crane is much more profitable. Services, as a rule, are used by start-up construction companies.
Tower KB-403 - self-mounting mobile mechanism.
The slewing crane has electrical control and a rail course with a beam boom equipped with a cargo trolley.
How base model, and its subsequent modifications ("A", "B") were produced on several Russian factories(Nyazepetrovsky, Podolsky, Karacharovsky, Moscow "PO Stroymash", etc.)
Cranes in Russia began to be produced at the end of the 19th century, but the production was of a single nature.
After the Great Patriotic War USSR factories began to produce up to 4,000 tower cranes annually, but they were all of different types, which hindered the development of crane building.
IN post-war years was launched first series cranes BKSM.
The construction was brick, so the devices were used for the most part for reloading and supplying materials upstairs.
In the second half of the 20th century, large-block, frame construction began to develop rapidly in the country, and in 1960 a series of KB — TO wounds B towered. The series was designed for 8 models, not counting modifications.
Scope of application
Using KB-403 (alternative designation Kbk-160.2) All mounting And construction work became mechanized.
Also KB-403 use on grain elevators And industrial enterprises, factories And power plants.
Lifting height of heavyweights up to 8 tons = 57.5 m. The crane performs all vertical and horizontal movements on the jobsite building structures and materials to the right place.
Transportation
Installation - using a truck crane (one or two).
Move KB-403 from one work site to another in the assembled form.
For transportation by road, the approval of the traffic police is required.
Differences KB-403
KB-403 — the first digit after the letter abbreviation of the model name is the number of the size group (4) according to the load moment, the next 2 digits (03) - from 01 to 69 - indicate the rotary type of the tower.
A feature of the technical characteristics of cranes of the KB-403 type is a beam boom of a cargo trolley and a trolley winch.
The boom is a three-sided truss, in which the upper belt and braces are welded from pipes, and the lower driving belts are made from corners.
The boom is sectional, the maximum reach varies from 20 to 30 m.
Device KB-403
- Tower— lattice rotary, has adjustable height. It consists of retractable sections, the head section is collapsible.
- The KB-403 tower is grown from below.
- Arrow- lattice single-suspension beam sectional, is a trihedral truss, along which the trolley moves.
- Freight cart fixed with hinges and cables, designed for transportation of materials, parts.
- Swivel platform is a flat device on which the portal is mounted. Top front - lugs of the support hinge. On the side are cabinets with controllers and starters. Behind the transverse beam, rods are welded to which the boom block is attached. Ballast plates weighing 30 tons are laid on the transverse beams.
The main crane devices are placed on the platform: the turning mechanism, winches (cargo and boom). On both sides, 2 counterweight blocks are fixed with steel studs.
The support for the turntable is the running frame, they are connected with the help of the OPU. The rotary mechanism on KB-403 is a roller circle (in 1 row), diameter = 2.5 m.
- Portal mounted on a turntable, open at the top and bottom for the passage of tower sections.
- Rope system equipped with pulleys.
- The mechanism can be controlled from the cab and from the ground.
Tower crane KB 403 - specifications
- lifting capacity depends on the height of the tower, the length of the boom and the wind load of the construction area. The KB-403 series is intended for wind load of I-IV degree;
- temperature range ±40ºС;
- boom outreach (min/max) = 5.6/30m;
- section base = 1.8 m, tower sections - up to 5 pieces;
- the crane is equipped with a multi-engine electric drive alternating current;
- maximum load moment = 120tm;
- crane travel speed=18m/min;
- full trolley speed=30m/min;
- boom outreach at max. lifting capacity=16.5m;
- ascent/descent speed=30/45m/min.
Site installation
Mounting begins with the assembly of crane rails. R43/P50 rails are used.
After mounting the undercarriage, the tower is brought to a vertical position, using a medium-duty crane for this work.
The assembly ends with hanging the boom, extending the tower and setting up all the nodes.
Modifications: KB-403A, KB-403B - the main differences
Crane KB-403B differs from KB-403A:
- increased boom before departure (in KB-403B=30m, in KB-403A=25m);
- greater by 0.5 t gross weight with counterweights (“A” = 80t, “B” = 80.5t).
Tower crane KB 403A - specifications
KB-403A is different from basic models KB-403 increased lifting speed, high load moment (120 tm), increased bogie speed and improved crane cab.
KB-403A - technical specifications:
- load capacity = 8t ;
- load moment = 120tm;
- maximum boom length = 26.3m;
- lifting height with raised boom = 52m (with horizontal boom = 42m);
- load lowering depth = 3m;
- total weight = 80t (counterweight = 30t);
- the only girder jib crane that cannot move a load cart along the slant jib;
- to increase the lifting speed, a U59 cargo winch is used frame structure with 2 engines: main and additional, which are located on one side of the gearbox.
Specifications KB-403B
KB-403B It has 4 option performance(each with its own specifications).
The mechanism is intended for construction miscellaneous type buildings tall before 17 floors.
KB-403 B — technical characteristics:
- load capacity = 8t ;
- 4 versions with load moments from 120 to 132tm;
- lifting height with raised boom = 54.7m (with horizontal boom = 41m);
- load lowering depth = 5m;
- maximum boom length = 30m;
- total weight = 80.5t (counterweight = 30t).
Used in the construction of 16-storey buildings for various purposes, the KB-408 tower crane has gained popularity due to its ease of operation and well-thought-out safety.
What device does this model of lifting equipment have? What are its main features and specifications? How is the KB-408 tower crane operated? How much does a new and used model of this equipment cost? We will consider these and other questions in the article.
Device
This model is included in the V category of cranes, its design coincides with similar models of this group.
The lift mechanism is arranged section by section by means of iron profiles welded in the form of a lattice. To change the overhang: increase or decrease it, move the carriage.
The design of the KB-408 forklift consists of:
- rotary single-row device, platform;
- portal;
- telescopic turret rotating 180 degrees;
- operator cabins;
- beam type booms with trolley cargo destination, with the help of it, lifting the load is possible in both directions: up and down;
- running frame;
- additional details.
Rotary: single row device, platform
The portal is installed on top of the platform, where there are also 2 types of winches:
- rifle,
- cargo.
At the rear of the platform, a counterweight is mounted in the form of 10 reinforced concrete blocks., thanks to them the rotary mechanism does not sway during transfer.
Braces and racks are mounted in trussed elements.
The platform has a base, attached to the running gear by means of a turntable.
Recently happened design changes in KB-408, with regard to the structure of the rotary device, outwardly it looks like a circle with a diameter of 2500 mm.
Additional parts - support hinge, working struts and other elements.
Portal
The portal is arranged in the form of a tetrahedron. On both sides it is open to the movement of parts of the tower. It rests on a trussed element, telescopic struts. Created from 2 trihedrons. Between them, fastening occurs with the help of beams having the shape of a box.
It is through the portal that the process of increasing the height, a stable position in the space of the tower is possible.
It has a roller mechanism arranged in two rows and four lock elements, able to keep the tower from falling during the installation of the crane.
Tower
The design of the tower is similar to that of the K-160. Represents:
- headroom,
- inventory, head sections,
- spacers.
headroom
Element of the tower, arranged like a lattice of metal. It has racks, stairs, platforms.
At the very top of the head, a boom bracing, a cargo rope are attached. There is a device for removing lightning, an anemometer.
head section
Blocks of two ropes are attached to it for moving carts and goods. Installed at the top signal fire, at the bottom - buffer stops for trolleys.
control cabin
The device is held on special mounts at the top of the tower. It is a cabin for cranes operating at a height of no more than 20 meters. Compared to its predecessor, K-160 has improved technical devices, heating panels.
girder boom
Individual structural elements are welded and interlocked by means of flange parts. The elements themselves are made of metal. On them there is a movement of the cart moving the load. With the help of the latter, the boom departure is changed.
Running frame
On a structure with dimensions of 7.5 x 7.5 meters (four-ring frame) there are rotating weather vanes on which the carts are held. A knife switch is held on the undercarriage of the crane.
Weathercocks have two states:
- transport;
- working.
Crane trolleys - 4. A couple of them use an electric drive, the rest do not.
Rails for KB-408 can be used in two types:
- rounded;
- straight.
The features of these mechanisms are in the position of the main control carts. On a straight rail type - everything is on the same axis. On rounded - outside the center of the rounding.
Additional details
As additional parts, KB-408 has various elements: a brace, a hook part and a mounting device and other fasteners:
cargo winch has in its device a drum mechanism, brakes, gearbox, engine. They stay on the platform. Fastening to the latter occurs with four screws. Purpose of the winch - vertical movement cargo.
trolley winch, constituent elements the same. Motor with two speeds, provide precise targeting of the load over the installation area.
Telescopic strut constructed from pipes of different diameters, nested one inside the other. They provide balance and hold the tower when installed on the platform.
Crane strut in the form of a triangle, attached to the top of the tower. Assists in setting up the tower and deflecting the bail line away from the tower. On the spacer there are 4 axle blocks, a quickdraw, a rope part for moving loads, a device for mounting a load sensor.
The crane is transported in a disassembled state, it is mounted on site using the available mounting devices.
The movement of the crane is carried out by means of a rail mechanism. KB-408 have counterweights to the tower, located under the latter.
In order to increase maximum height lift up to 77 meters, the boom is tilted at an angle of 30 degrees. The boom reach to the maximum in this case will be only 50 meters, the load capacity, however, in this case is only one and a half tons.
For maintenance of KB-408 there is a platform fixed to the base of the boom.
Specifications
| Load moment, max, t | 1800 |
| Carrying capacity, max reach, tons | 6,3 |
| Carrying capacity, max t | 10 |
| Load capacity, for each boom section, t | 3 |
| Length (horizontal boom), max/min, m | 32/4,5 |
| Length (overhead boom), max/min, m | 26,6/4,2 |
| Height (horiz. boom), max, m | 54 |
| Height (overhead boom), max, m | 72,7 |
| Length (moving down), m | 5 |
| Speed (load lifting), max height, m/min. | 30 |
| Speed (load down), m/min. | 4,8 |
| Trolley speed (with load), m/min. | 30 |
| V crane, m/min. | 12,8 |
| Rotation, m/min. | 0,65 |
| Base length, m | 7,5 |
| Track length, m | 7,5 |
| Curve radius, min | 12 |
| Power, kWt | 77,6 |
| Power of a cargo winch with a horizontal boom, kW | 55 |
| Power of a cargo winch with an inclined boom, kW | 30 |
| Rotary device power, kW | 7 |
| Power of the device that moves the crane along the rails, kW | 11 |
| Boom winch power, kW | 15 |
| Structural mass | 54,8 |
| Weight of counterweight | 40,4 |
| total weight | 95,2 |
How to manage
The design of the beam boom allows you to more smoothly direct the load to the installation site.
The tower crane is controlled by special software and hardware located in the cockpit, in particular, controllers and radio-controlled consoles.
Switching landing and lifting speed is done by means of a single switch.
This crane is distinguished by thirteen versions, only the boom outreach values (20, 30, 35), respectively, the load capacity and the lifting and lowering values differ.
girder boom installed at an angle, such as 43 degrees and 30 degrees.
The crane has:
- control mechanism self-diagnosis system,
- remote control via GPRS,
- touch control,
- frequency control of motors.
The cabin air conditioning system is also sold separately.
Additions in the equipment of the crane:
- Heating in the cab. The crane can work successfully both at +40℃ and -40℃. Since its purpose is for the IV zone. Accordingly, it has a well-heated operator's cabin.
- load cell. The lifting mechanism is equipped with a load control sensor, thanks to which the main components of the system are monitored.
- Control of the movement of cargo elements. Thanks to special device(frequency) movement of concrete slabs and other loads occurs smoothly and without interference.
- Cabin temperature control. Thanks to modern electronic stuffing cabin is temperature controlled.
- Safety system in case of rope break, (shock absorber, coupler). Works and holds the boom when the rope breaks.
Cost of new and used equipment
In Russia, you can buy a new KB-408 crane at a price of at least 7–10 million rubles. from the manufacturer of the Nyazepetrovsky Crane Plant. A beam boom 40-50 m long can also be supplied with the crane.
At the request of the buyer, the seller company can equip the cabin with a modern air conditioning system, which undoubtedly plays in favor of this model of technology.
Equipment from 2005 can be found at a cost of 4.5 million rubles. Newer forklifts will cost more. It is also widely practiced to rent tower cranes from 800 rubles. at one o'clock.
Thus, the KB-408 model among its counterparts is in the forefront in terms of technical equipment and carrying capacity. It has a relatively inexpensive price on the market, has a lot of positive feedback among contractors. If the choice is about high-quality lifting equipment, then, definitely, you should take a closer look at the KB-408 tower crane.
You can watch a video of the operation of the KB-408 tower lifting and cargo mechanism here:
KB-403 - self-erecting tower crane with electric control. The crane moves on a rail track. Structurally, the crane consists of: a slewing platform and a slewing mechanism, a running frame with swivel weathercocks, a portal, a tower section, a tower, control cabins, block boom and hook clip.
Who manufactures the KB-403 crane? Tower cranes KB-403 (further modifications of these cranes KB-403A, KB-403B) were produced at the Nyazepetrovsk Plant Construction Machinery, Nyazepetrovsk (now the Foundry and Mechanical Plant). Other manufacturers are the plant of the Moscow "PO Stroymash", the Karacharovsky mechanical plant, the Podolsk plant "Stroitekhnika", etc.
The KB-403A crane is a modification of the KB-403 crane. Designed for the construction of residential, industrial and administrative buildings and structures up to 16 floors high with a temperature environment-40 °C to +40 °C. KB-403A is different high speed lifting and moving the cargo trolley, improved cargo moment, control cabin design and improved heating. The lifting capacity of the crane is 8 tons. KB-403A cranes were manufactured by the Moscow plant of the Moscow PO Stroymash. Crane KB-403B. Designed for the construction of residential, industrial and administrative buildings and structures up to 17 floors high with an ambient temperature of -40 °C to +40 °C. It has 4 versions (each with its own load-altitude characteristics). Crane lifting capacity 8 t.
Technical characteristics of the crane KB-403
| Parameter | Unit measurements | Value | |
| Control - electrical, input voltage | IN | 380 | |
| Motor power | kW | 116-120 | |
| Swing power | kW | 5 | |
| Height in free position | m | 37,9-54,7 | |
| Width (track) | m | 6 | |
| Section base | m | 1,8 | |
| Number of tower sections | PC | up to 5 | |
| Turning part, radius | m | 3,8 | |
| Total weight of the structure | T | 76,6-80,5 | |
| Weight of counterweight | T | 30 | |
| Maximum lifting capacity (with minimum boom shot) | T | 8 | |
| Lifting capacity at max. boom reach | T | 3 | |
| Maximum lifting height | m | 54,7 | |
| Maximum boom reach | m | 30 | |
| Load moment (maximum) | t*m | 120 | |
| Departure of an arrow (minimum/maximum) | m | 5,6/30 | |
| Boom reach at max. lifting | m | 16,5 | |
| Maximum movement speed | m/min | 18 | |
| Cart full speed | m/min | 30 | |
| maximum lifting speed of the hook block | m/min | 55 | |
| Smooth landing | m/min | 5 | |
| Rotation frequency | rpm | kN | 270 |
Comparative technical characteristics of KB-403A, KB-403B, KB-403B.4
| Options | KB-403A | KB-403B | KB-403B.4 |
| Structural weight, t | 50 | 50,5 | 46,6 |
| Total weight, t | 80 | 80,5 | |
| Track, m | 6 | 6 | |
| Load moment, t*m | 132 | 120 | 132 |
| Maximum carrying capacity, t | 8 | 8 | 8 |
| Lifting capacity at full outreach, t | 4,5 | 3 | 3 |
| Boom reach maximum, m | 25 | 30 | 30 |
| Boom reach with max. load, m | 16,5 | 15 | 16,5 |
| Lifting height at full reach, m 41 | 41 | 41 | 24,2 |
| Maximum lift, m | 52 | 54,7 | 37,9 |
| Landing speed, m/min | 4,8 | 5 | 5 |
| Lifting speed max. load, m/min | 40 | 40 | 40 |
| Maximum lifting speed, m/min | 58 | 55 | 55 |
| The highest speed of the chassis | 18 | 18 | 18 |
| The speed of the filled trolley | 23 | 30 | 30 |
| Rotation frequency, rpm | 0,6 | 0,65 | 0,65 |
| Possible degree of wind gust | IV | III | VII |
Comparative technical characteristics of KB-403B, KB-403B.1, KB-403B.2, KB-403B.3
| Versions | KB-403B | KB-403B.1 | KB-403B.2 | KB-403B.3 |
| Maximum load moment, tm | 120 | 132 | ||
| Carrying capacity, t | ||||
| maximum | 8 | |||
| at maximum horizontal boom reach | 3 | 3,5 | ||
| at the maximum reach of the inclined boom at an angle of 30° | 3,7 | 4,3 | ||
| Departure, m | ||||
| maximum horizontal boom | 30 | |||
| maximum inclined boom | 26,3 | |||
| at maximum load capacity | 15 | 16,5 | ||
| minimum | 5,6 | |||
| Maximum lifting height, m | ||||
| boom horizontal / number of sections | 41/6 | 35,4/5 | 29,8/4 | 24,2/3 |
| inclined arrows | 54,7 | 49,1 | 43,5 | 37,9 |
| Maximum lowering depth, m | 5 | |||
| Rotation angle, degrees | 1080 | |||
| Speed, m/min | ||||
| lifting (lowering) of cargo up to 8 t | 40 | |||
| lifting (lowering) hook suspension | 55 | |||
| smooth landing of cargo up to 8 t | 5 | |||
| cargo trolley with a load of up to 8 tons | 30 | |||
| crane movement | 18 | |||
| Rotation frequency, rpm | 0,65 | |||
| Power electric motor, kW | ||||
| main cargo winch | 55 | |||
| auxiliary cargo winch | 30/1,6 | |||
| boom winch | 15 | |||
| trolley winch | 5 | |||
| turning mechanism | 5 | |||
| crane traveling mechanism | 5.5 x 2 = 11 | |||
| Total power of electric motors | 121 | |||
| Geometric parameters, m | ||||
| track X base | 6 x 6 | |||
| tail clearance | 3,8 | |||
| Weight, t | ||||
| constructive | 50,5 | 49,2 | 47,9 | 46,6 |
| counterweights | 30 (+/-0,3) | 270 | ||
| Seismicity, points | 1-6 according to SNiP II-7-81 | |||
| wind region | III | V | VI | VII |
dimensions, drawing of the crane KB-403
How is the tower crane KB-403 arranged?
- The use of metal pipes in the form of a lattice structure makes the structure of the tower and boom lighter, which gives the structure greater accuracy when moving and free visual control of the actions performed.
- With the help of a cargo trolley, movably fixed on the boom, both vertical and horizontal movement of building parts and materials is carried out.
- The turntable of the KB-403 tower is made in the form of a roller circle with a diameter of 2500 mm.
- The turret is unified in design with some units of the KB-160 crane, with the exception of the design and equipment of the turret head. It differs in the length of the chain hoist ropes and the maximum possible number of installed inventory sections, as well as the design of the head section of the tower has been changed - now it has become collapsible.
- The cabin of KB-403 differs from the cabin of the base model in a more advanced design, adapted for convenient viewing at a higher crane height, and also differs in internal filling and equipment - improved insulation and heating panels. Additionally, it can be equipped with air conditioning.
- The beam boom also has a sectional design.
- The crane can be equipped with a safety device with a coordinate type protection system.
- The crane can be controlled both from the cab and remotely. How to dismantle (disassemble) and assemble (assembly) the KB-403 crane?
For the installation of KB-403, our own tower crane mechanisms and truck cranes are used.
- Laying railroad tracks. Rail tracks with sleepers of the required length are laid on a pre-prepared site, and traffic limiters are installed along the edges of the rails.
- Installing the turntable and running frame on rail track. Installation is carried out by two truck cranes, one of which sets the platform (on the running frame, the transport position locks are removed from the swivel supports). The second truck crane, in turn, under the fastenings of the rotary supports, support carts are installed on the rail tracks. Carts are fixed in working position. Then side counterweight plates are installed on the sides of the turntable.
- Installation of a portal with a tower. The fastenings of the trussed truss of the turntable are docked with the fastenings of the crane portal. Fasten with hinged bolts. Next, a control cabin is mounted on the tower and struts with blocks are placed on the tower. Then, in turn, the main counterweight plates are placed on the turntable. A clip is attached to the fastening rods of the lower clip of the boom pulley block. The crane ropes are reeved and the electrical equipment is adjusted.
- Lifting the crane and assembling the boom. The crane is lifted by its own mechanisms. Installation of working struts to hold in a vertical position. The boom is assembled using a truck crane. After the boom is assembled, the crane hook frame is installed and the boom ropes are reeved (boom bracing, cargo rope). If necessary, the crane is built up with additional (inventory) sections of the tower.
When dismantling the cranes, all the above actions are carried out in reverse order, in accordance with the installation instructions and the Safety Regulations. Dismantling is carried out using truck cranes and own mechanisms. Installation, dismantling, extension, and extraction of crane sections is prohibited with a raised boom. So you bought or rented a KB-403 crane. How to transport it?
On the running frame of the crane, the slewing weathercocks are fixed in the transport position. The boom is completely removed from the crane together with the cargo trolley and loaded separately from the rest of the crane (tower, head section, portal) onto transport. Take off cargo trolley from the boom during transportation is not necessary. Each element of the crane is transported in parts (a turntable with a support frame, a control cabin, inventory sections of the tower, an boom with a cargo trolley, ballast plates, support trolleys). For transportation on highways, rolling carts and / or a truck tractor are used as transport.
To transport a crane, it is necessary to coordinate with the traffic police (issuing a travel permit, obtaining an escort car - in accordance with the Rules of the Road).
