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- Double-Girder Jib Crane KKM7 with Suspended Grab
Double-Girder Jib Crane KKM7 with Suspended Grab
- crane boom (console) — 1 pc.
- crane column with lower support flange — 1 pc.
- crane control box (with the exception of cranes in the VZI version)
- gear motor 1-2 pcs. (depending on the boom departure and lifting capacity of the crane)
- trolley with lifting mechanism (a classic deployed lifting mechanism) — 1 pc.
- power supply to the crane (optional)
- power supply to the hoist (optional)
- attachments (grab, spreader beam, and others according to the technical specification).
- other parts (the list of components depends on the configuration and set of options of the crane you ordered and may differ from the one given in this section of the site)
- crane documentation (passport, crane operation and installation manual, passports and instructions for individual crane components manufactured at other enterprises and supplied with this crane, packing list, waybill).
The above configuration is basic and may differ significantly from the actual one. If you need complete information on this issue, please contact the nearest sales department.
| Option Name | Option Description |
| Load Limiter | Serves as an additional safety device alongside limit switches and load drop protection devices in case of phase failure. Typically installed when handling various loads with unknown weights. If the load exceeds the hoist’s capacity, the limiter halts the lifting process. Available for cranes equipped with an electric hoist as the limiter is mounted on the hoist’s lifting mechanism. |
| Sound and Light Alarms | Activated when the jib crane is switched on, warning employees to leave the danger zone. Depending on workplace conditions, either light or sound alarms are recommended. Available only for electric jib cranes. |
| Radio Control | Allows remote control of the crane using a remote controller. Available for electric jib cranes or cranes equipped with an electric hoist. The delivery includes a 6-button remote controller with an emergency stop button and a radio signal receiver (mounted on the hoist or near the crane’s control box). |
| Motor with Brake for Jib Rotation | The integrated brake stops the jib at the desired position without inertial movement. Manual fixation at a precise point is impossible. The brake is hidden within the motor-reducer system. Recommended for cranes with outdoor placement categories U1 and U2 to prevent unintended jib movement in parking position during strong winds or other external factors. |
| Hoist Parking Canopy for Outdoor Use | Used for cranes in outdoor placement category U1 to protect the electric hoist from direct precipitation. Recommended by crane and hoist manufacturers since standard hoist designs typically lack alternative precipitation protection. |
| Full Span Hoist Canopy for Outdoor Use | Protects the electric hoist across the full span of the crane in outdoor placement category U1. Recommended by crane and hoist manufacturers for additional precipitation protection. |
| Power Cut-Off Switch on Crane Column | Enables switching crane power on and off. Located approximately 1500 mm from the lower flange of the crane. Consists of a two-button post housed in a protective (metal) casing. |
| Electric End Switches for Hoist Travel on Jib | Used to limit the travel distance of the electric hoist along the crane’s jib. |
| Anchor System for Crane Foundation Fixation | This option applies during the installation phase. Anchors secure the crane to its foundation. For prepared foundations, an anchor system is typically offered. For unprepared foundations, mounting studs are used instead. |
| Load Drop Protection Device for Phase Failure | An additional safety device alongside load limiters and limit switches. |
| Crane Operation Parameter Recorder | Records crane operating conditions, including modes, duration, and load capacity. Installed only on cranes equipped with electric wire rope hoists. |
| Crane Operation Time Indicator | Tracks crane operation time to schedule maintenance, minor repairs, and major overhauls. Integrated into or mounted on the control box door. |
| Frequency Regulation for Jib Rotation Speed | A frequency converter installed in the control box allows for adjustable jib rotation speed within a specified range. Also enables smooth start and braking. |
| Engine Cooling System | Recommended when installing a frequency converter, which significantly reduces the standard movement speed of the crane, to prevent motor overheating. |
| Input Choke | Smooths voltage spikes and reduces amplitude fluctuations in the AC supply. Reduces current ripple amplitude consumed by the frequency converter. |
| Platform and Ladder for Hoist and Crane Maintenance | For jib cranes taller than 3 meters, it is recommended to include maintenance access solutions such as a horizontal platform at human height from the jib and a ladder welded to the crane column. This facilitates hoist maintenance, oil changes, and other service operations. |
| Heated Crane Control Box | Enables jib crane operation at air temperatures down to -20°C. Mandatory for cranes operating below -10°C. Requires the additional installation of a frequency converter. |
The Gruzopodem company is a modern plant in Kazan with production workshops with an area of 17,000 m2, where more than 1,000 overhead, cantilever and gantry cranes, as well as other equipment are manufactured annually. The plant is equipped with its own destructive and non—destructive testing laboratories, which guarantees the quality of products at every stage - from the input raw materials to the finished product. We strictly adhere to industry standards, have certifications of welding technology and non-destructive testing. By the end of 2023, the company entered the TOP 5 largest crane plants in Russia* and was recognized as the best exporter of the Republic of Tatarstan in the field of industry.
*Based on the results of an independent study by Mega Research agency for the period 2019 — 5 months 2023: https://www.megaresearch.ru/work_examples/issledovaniya/1952?roistat_visit=230331
The KKM7 double-girder jib crane with a suspended grab is designed for lifting and moving various loads within the range of the jib's minimum and maximum outreach (distance from the hook suspension point to the column axis along the jib). The classic open-type hoisting trolley mechanism allows the crane to operate with a hook as well as with a mechanical or motorized grab, or other hook-mounted attachments.
This design ensures strictly vertical lifting and even load distribution across the jib beams.
The double-girder jib (boom) construction provides increased structural reliability and stability, enabling safe operation at outreach lengths of up to 12 meters. The maximum lifting capacity of the KKM7 model is 16 tons, with a lifting height of up to 12 meters. This model is designed for heavy-duty operation and is manufactured in a general-purpose industrial version.
The KKM7 double-girder jib crane
In the crane’s basic configuration, the jib rotation angle is limited and can reach up to 360 degrees. If continuous rotation is required, a slip ring assembly (rotary current collector) can be added.
The equipment is fitted with motor reducers for both jib slewing and trolley travel mechanisms. Control is performed via cable pendant or radio remote. The hoisting mechanism includes a rope drum, gearbox, brake, and electric motor. Additionally, if a motorized grab or other electrically powered attachment is used, a cable reel is installed on the trolley to supply power.
The KKM7 double-girder jib crane with a suspended grab (electromagnetic beam, magnetic plate, or other equipment) is suitable for various climate conditions. The crane’s configuration may vary depending on the operating environment.
Each crane is custom-engineered based on the specific requirements of the client, operational conditions, and functional tasks of the facility.