Tower crane KB-674, KB-675, KB-676
KB-674 is a self-propelled tower crane (on rails) with a beam boom and a fixed tower. Designed for construction and installation work on the construction of residential and administrative buildings and structures with a mass of mounted elements from 2.5 to 25 tons. It has non-movable versions (free-standing or attached) - KB-674A-RK.
Produced at NKZ (Nikopol Crane Manufacturing Plant) (Ukraine). The KB-676A is currently being modified.
Main technical characteristics of the KB-674 crane:
Load moment up to 400 tm Maximum lifting capacity 25 t Maximum boom reach 50 m Maximum hook lifting height 120 m Track width (on rail) 7.5 m Structural weight of the crane 131 t Total weight 248.4 t Installed power 157 kW
Main technical characteristics of the crane KB-674A-RK (attached):
Maximum load moment 300 tm Maximum lifting capacity 12.5 t Maximum boom reach 50.5 m Minimum reach 3.5 m Load capacity at maximum reach 5.6 t Reach at maximum load capacity 24 m Maximum lifting height of a free-standing crane 60 m Maximum lifting height of a hook 116 m (3 fastening to the building) Lowering depth 5 m Speed of lifting (lowering) maximum weight 35 m/min Speed of lifting (lowering) hook suspension 100 m/min Speed of smooth landing of maximum weight 2.5 m/min Speed of change of reach 36.7 m/min Rotation speed 0.08-0 .6 rpm Rotation angle 1080 degrees Structural weight of the crane 135 t Total weight 148 t Counterweight weight 12.6 t Maximum load on wall support 37.8 t Installed power 157 kW
Details Updated: March 09, 2022 xn—-8sbzfqbnedk.xn--p1ai
The KB 674 crane is designed for work on the construction of prefabricated and monolithic residential, civil, industrial and other buildings and structures with a maximum weight of mounted elements of up to 25 tons and a lifting height of up to 120 m.
A mobile crane on rails with an asymmetric portal, supported on four wheeled trolleys.
The upper rotating part of the crane consists of a pyramidal head, to which a boom is suspended on one side, and a counterweight console on the other. In its root part, a control cabin and a cabinet with electrical equipment are installed on different sides. Thus, the rotating part of the KB 674 crane is an autonomous jib full-rotating crane, resting on the tower through a roller support circle. Inside the tower there is a lift for the driver. The boom is a triangular truss, the upper chord of which and the lattice rods are made of pipes, and the lower ones are made of channels. The running wheels of a cargo trolley carrying a cargo pulley move along the shelves of the channels. The cargo winch, installed on the counterweight console, is powered by direct current from a thyristor converter, which allows for a low “landing” speed of the load and a significant depth of regulation of operating speeds.
The converter is connected to a network with a voltage of 380 V through a TV-100 power transformer with a power of 100 kW. The tower is extended from above using a mounting clip - a crane hook suspension.
The KB 675 crane is designed as a stationary attachment with a tower base in a monolithic foundation. There are special frames between the tower sections where the crane is attached to the building. The fastening parts are passed through window openings and secured to the walls or columns of the building. The lifting capacity is 12.5 tons with a lifting height of 110 m. The crane has a tower, boom, mechanisms, and mounting stand unified with the KB 674 crane.
Since 1977, the modernized crane KB 674A has been produced and on its basis the universal (rail and attachment) crane KB 676 has been created, which has four versions, differing in lifting capacity of 12.5 and 25 tons, boom lengths of 50 and 35 m and hook lifting heights of 83 and 120 m. When building up a crane tower, frames are fixed between sections, to which wall supports are connected when a certain height is reached. In the crane at a height of 49, 72.8 and 97 m, 1, 2 and 3 wall supports are installed, respectively.
Since the tower and boom are structurally made sectional, which makes it possible to assemble a crane with different tower reach and height, a number corresponding to a certain type of design is added to the main crane index through a dash (for example, KB 674-5 or KB 674A-6). Any crane model in each version could be equipped with an RPU-2 radio remote control system, then the index would indicate a zero through a dash (for example, KB 674-0-1). The lifting speed for loads weighing up to 9 tons is 35 m/min, and for large ones – 17.5 m/min. The following are used: an electric drive for winding up the tower sections, an equipment cabin instead of electrical cabinets, a reinforced running frame, a simplified installation diagram for the boom guys.
CJSC NPO Mekhanik produces spare parts for the KB 674 crane such as:
- Crane drive;
- Turn reducer;
- Walking trolleys;
- Cargo winches;
- Gear couplings;
- MUVP couplings;
- Brake pulleys;
- Running wheels;
- Bypass blocks;
- Cargo drums;
- Crane gearboxes;
- Gears and pinion shafts;
- Hooks;
- Hook hangers;
- Rotating bearings;
- Driver's seats;
- Crane brakes;
- Hydraulic pushers;
- Limit switches;
- Resistor blocks;
- Command controllers;
- Contactors;
- Crane panels;
- Push-button posts;
- Starters;
- Current collectors;
- Electromagnets;
- Crane electric motors;
- The bolts are high strength;
- Power cable.
You can find out the price of spare parts for the KB 674 crane by calling:
(4842) 75-75-05
KB-674 | "KRANSNAB"
KB-674 is a tower crane, self-propelled, rail-mounted, full-rotary, has 21 designs, designed for construction and installation work of the main equipment of the main buildings of open and semi-open layouts, as well as residential and administrative buildings and structures with a mass of mounted elements from 2 ,5 to 25 t, refers to cranes of the 6th size group.
Technical characteristics of the crane KB-674
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Cranes of all designs are controlled from the control cabin by command controllers, and cranes of designs from “A-0-1” to “A-10-1” are additionally equipped with a television and radio program control system (RPU-2). In this case, transport operations for the delivery of goods are performed automatically according to a given program. Executions can be obtained based on the basic model by changing the number of sections of the tower, boom, hook clips or cargo trolleys and have different characteristics.
The fixed tower houses a passenger lift for two people. The tower is built up from above with replaceable intermediate sections using its own mechanisms. The main boom and counterweight console are beam type, sectional, triangular in section. A cargo trolley with a hook clip moves along the lower belts on the main boom, and cargo trolleys move on the counterweight console.
The crane is powered from a 380V AC network with a frequency of 50Hz, with a transformer power of at least 300 kVA•A. Movement of a crane with a load is allowed only for cranes of design “A-0” with a tower height of no more than 46 meters.
Manufacturer - NKZ.
www.kransnab.ru
Installation of tower cranes of the KB-674A series with a lifting capacity of 25 tons from individual elements
EniR
§ E35-31. Installation of tower cranes of the KB-674A series with a lifting capacity of 25 tons from individual elements
Time standards and prices for 1 tap
| Name and scope of work | Installers of construction machines and mechanisms | Time norms Prices . | № |
| Crane installation | — | 520,97 474-09,2 | 1 |
| Including: | |||
| Installation and fastening of running trolleys on the crane track rails, assembly of the running frame, installation and fastening of it on the running trolleys | 6 sizes - 1 4 » — 1 | 31 28-68 | 2 |
| Installation and fastening of the ballast frame on the running frame beam, laying ballast slabs on the frame and fastening them | 4 size - 1 3 » — 1 | 8,9 6-63 | 3 |
| Using an auxiliary crane, installing the main section of the tower onto the flanges of the running frame and securing it | 6 sizes - 1 4 » — 1 | 7,6 7-03 | 4 |
| Deployment of external longitudinal balancers of the upper beams (left and right); deployment of balancers of the lower beams; installing the upper (elevator) section on the pins of the tower base and securing it; lifting and installing rectangular cradles on beams; bringing the outer longitudinal balancers of the right and left beams into working position | Same | 6,8 6-29 | 5 |
| Installation of a fixed frame assembled with a rotating frame on the upper (elevator) section and fastening it to the section | « | 24 22-20 | 6 |
| Installation and fastening of the tower head on the rotating frame | « | 11 10-18 | 7 |
| Installation of the strut on the mounting rack into the working position; installation and fastening of the mounting stand in a vertical position with stops in the grooves of special brackets of the tower base | « | 17,5 16-19 | 8 |
| Installing and securing mounting pads to the mounting post and top section | 4 size - 1 3 » — 1 | 9,6 7-15 | 9 |
| Installation and fastening of removable beams to the upper section of the tower | 6 sizes - 1 4 » — 1 | 6,5 6-01 | 10 |
| Assembling the console sections, installing the console and attaching it to the rotating frame; installation and fastening of the guy wire to the head and console | Same | 12 11-10 | 11 |
| Assembling boom sections, installing and fastening the boom assembly to the rotating frame; installing the boom guy and attaching it to the boom head and head section | 6 sizes - 1 4 » — 1 | 33 30-53 | 12 |
| Loading counterweight blocks onto a mobile trolley of the counterweight console and fastening them together | 4 size - 1 3 » — 1 | 12,5 9-31 | 13 |
| Installation and securing of the cargo winch on the counterweight console | 6 sizes - 1 4 » — 1 | 5,6 5-18 | 14 |
| Reeving according to the rope reeving schemes: counterweight lift height limiter with installation of the trolley in the working position, the cargo trolley, on the cargo winch drum, on the tower head blocks, the boom head block, the load carriage block, the load holder, the second load carriage block and securing the second end in arrow root | Same | 38 35-15 | 15 |
| Fastening the eye of the lower cage of the mounting rack pulley in the eyes of the upper section of the tower, reeving the rope of the mounting rack through the blocks of the upper section and the mounting rack, securing the end of the rope in the eye of the upper section of the tower | « | 4,7 4-35 | 16 |
| Installation of an additional section with a hinge frame under the boom of the crane being mounted, suspension on the hook clip of the mounting device and slinging an additional section with a hinge frame to it; raising the mounting device with an additional section with a hinge frame; raising the mounting device with the additional section to the level of the landing axes of the removable beams and fastening it; detaching the top of the crane from the base of the tower; raising the upper part of the tower together with securing it to the mounting device and an additional section; pulling the device trolley with an additional section into the tower opening; lowering the upper part of the crane with the additional section onto the main one and securing it; lifting the top of the crane and rolling out the trolley from under the top section; moving the device beyond the tower envelope and lowering it to the ground; lowering the top of the crane onto an additional section; repositioning the mounting stand | « | 22 20-35 | 17 |
| Installation and fastening of the ladder to the running frame | 4 size - 1 3 » — 1 | 3,2 2-38 | 18 |
| Installation and fastening of skids to the additional and main sections; lifting the mounting rack along the skis and attaching it to the additional and upper sections; Unfastening and removing skis | 6 sizes - 1 4 » — 1 | 5,7 5-27 | 19 |
| Installation and fastening of tower struts with pins in the eyes of the hinged and running frames | Same | 26 24-05 | 20 |
| Laying reinforced concrete slabs between the rails of the crane tracks, installing jacks on them to adjust the verticality of the tower, removing the jacks and cleaning the slabs after installation | « | 3,3 3-05 | 21 |
| Installation and fastening of the cradle to the portal frame | « | 1,3 1-20 | 22 |
| Installation of an ordinary section under the crane boom, bringing the section to the crane tower using a mounting device; detaching the upper section from the additional one (ordinary); extending the top of the crane to the required height; supply of the mounting device trolley from the row section in the tower opening; lowering the upper part of the crane and attaching the row section to the additional one (row section); lifting the top of the crane and rolling out the mounting fixture; lowering the top of the crane and attaching the top section to the row | 6 sizes - 1 4 » — 1 | 66 61-05 | 23 |
| Checking the verticality of the lift guides and docking them; detaching the lift cabin from the upper section of the tower and lowering the cabins to the lowest position | Same | 2,4 2-22 | 24 |
| Lowering the mounting device using a cargo winch and laying it on the ballast slabs | « | 0,77 0-71,2 | 25 |
| Repositioning the rope of the mounting post, raising the mounting post until its stops come out of the grooves of the brackets of the row section; rolling away a mobile beam with a mounting stand suspended on it; lowering the mounting post and attaching it to the additional section | « | 34 31-45 | 26 |
| Disconnecting the lower clip of the mounting pulley from the upper section, securing it to the mounting rack, removing the ropes from the blocks of the upper section and the mounting rack | « | 5,3 4-90 | 27 |
| Installation of electrical equipment, lighting wires and fittings with adjustment of all equipment, safety devices and connection of the power supply cable | 5 sizes (electrical installer) | 105 95-55 | 28 |
| Detachment of the crane from the rail tracks, testing, elimination of installation defects, adjustment of mechanisms | 6 sizes - 1 4 » — 1 | 7,9 7-31 | 29 |
| Testing of the crane in accordance with the requirements of Gosgortekhnadzor and commissioning | 6 sizes | 6,2 6-57 | 30 |
| Loading tools, rigging and mounting accessories onto the vehicle and unloading from the vehicle | 2 sizes | 3,2 2-05 | 31 |
Notes: 1. Installation of a tower crane of the KB-674A series is provided with a full set of boom sections (three), ordinary tower sections (five), ballast slabs (eight). When installing cranes of the KB-674A series with a different number of boom sections, ordinary tower sections and ballast slabs, apply the time standard and the Rating for the installation of one additional ballast slab to the composition of the team of installers of construction machinery and mechanisms 4 times. — 1, 3 sizes - 1 (PR-1). For the installation of one additional section of the boom - the composition of the team of installers of construction machines and mechanisms is 6 grades. — 1, 4 sizes - 1 (PR-2). For the installation of one additional ordinary section of the tower - the composition of the team of installers of construction machines and mechanisms is 6 grades. — 1, 4 sizes - 1 (PR-3). 2. Increase the complex time standard and price when installing cranes:
KB-674.1 on (PR-4);
KB-674.2 on (PR-5);
KB-674.3 on (PR-6);
KB-674.4 on (PR-7);
KB-674.5 on (PR-8).
Tower crane KB-674
The KB-674 tower crane is most often rented for the construction of large residential and public buildings. It has earned respect due to its smooth operation and high structural strength. The KB-674 tower crane is suitable for solving a wide range of tasks. The successful design of the winch drive provides the necessary smoothness of lifting and lowering. The KB-674 crane is capable of handling loads weighing up to 12.5 tons, and when modifications are used, this figure doubles. The boom extends to a distance of up to 50 m. The KB-674 crane can provide lifting up to 120 m. It is certified for work in the Russian Federation. We offer special equipment for rent. You can pay for services in installments. If you contact us again, we will give you a discount.
Technical characteristics of KB-674:
| Crane weight (total): | 245.5 t |
| Installed power: | 157.0 kW |
| Maximum load lifting speed: | 47.0 m/min. |
| Lowering depth: | -5.0 m |
| Maximum lifting height: | 120,0 |
| Reach at maximum load capacity: | 25.6 m |
| Departure: | 50.0 m |
| Load capacity at maximum reach: | 5.6 t |
| Maximum load capacity: | 12.5 t |
| Base: | 7.5 m |
| Track: | 7.5 m |
| Installation: | mobile/anchor |
Load capacity (t) : 12.5
Boom length (m) : 50
Height under hook (m) : 120
kran-vertikal.ru
Reinforced concrete crane beams KB-674A: dimensions, prices, weight
Reinforced concrete crane beams KB-674A are used to organize the movement of overhead cranes. We have these products in stock and you can buy them or order production. Delivery is carried out throughout Russia.
General informationTechnical characteristicsOur clients for these products
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general information
The production of crane beams KB-674A is a complex production process. The products have embedded steel fasteners. They are designed for fastening crane tracks with load-bearing columns. Their fastening must be reliable and of high quality, since the safety and efficiency of operation of lifting equipment in the future largely depends on this.
When manufacturing crane beams, our specialists use high-quality concrete of class B20-B40. In addition, reinforcement with high strength indicators is used. It uses steel rod reinforcement of classes A-3B or A-4, strand reinforcement and high-strength wire.
If you want to buy crane beams KB-674A and you have difficulty choosing, then our specialists are ready to answer any questions, including those regarding professional fastening of crane beams.
Technical characteristics of beams KB-674A: dimensions, weight
| Name | Product Dimensions (mm) | Weight | ||
| A | B | H | kg | |
| KB-674A | 6240 | 600 | 1000 | 8,55 |
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Factory of reinforced concrete products in Moscow LLC "PSK PERSPECTIVA".
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