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Flender gear units for cranes, hoisting and luffing gear systems are economical and efficient. Alongside the extensive range of extremely compact standard gear units FLENDER offers application-specific gear units with a large overall center distance that enable parallel fitting of motor and winding drum, even with large drum and motor diameters.
The gear-unit series is ideally suited for operation on container cranes and bridge cranes, that is, where a parallel motor-and-winding-drum arrangement is required. FLENDER industrial gear units for lifting and luffing gears are available in a broad transmission range for torques ranging from 10,000 up to 1,400,000 Nm.
FLENDER CHG – robust special solutions for lifting and luffing gears
The new Flender gear units for cranes, hoisting and luffing gear systems CHG offers operational reliability and optimum efficiency. The new gear-unit series has been developed in close collaboration with our customers on the basis of many decades of experience in the engineering of drives for cranes.
Your benefits at a glance
High torques
Great center distance possible without special solution or size difference
Easy selection by means of gear unit dimensioning in Siemens configurators
Drive and output shafts designed for high additional forces
Optimised gear-unit elements for highest possible peak loads
Reduction of mass moments of inertia
Torsionally rigid welded steel housing
Large transmission area
FLENDER cylindrical gear unit – universal standard range
Many application requirements can be met from our comprehensive universal Flender gear units for hoisting and luffing gear systems. The advantage of standardised solutions are short delivery times and an excellent price-performance ratio. The most extensive range of industrial gear units offers a large selection of 24 sizes in a torque range of up to 1,400,000 Nm. The gear units are suited for horizontal and vertical mounting positions.
FLENDER cylindrical gear units can also be delivered with greater center distance. 10 sizes up to 109,000 Nm can be selected.
Your benefits at a glance
Variable center distances, adapted to suit the requirements in the crane area
High flexibility for project-related special solutions
Optimised sealing systems with high periods of service of the shaft-sealing rings
Above-average service life; low weight; little noise
Applications
Container cranes
Bridge cranes
Casting cranes
Tower slewing cranes
Offshore cranes
Drawworks
Slewing gear drives are used to position driven machines. They are proven in many different applications, such as cranes, excavators, and drilling platforms. Flender gear units for slewing gears have a modular design.
They can be combined with a long or short lantern gear drive on the output side. The mounted output pinions are manufactured according to the customer’s specifications. On the input side, we offer solutions for both electric motors and high-speed or low-speed hydraulic motors, some of which are already standardized.
One frequently requested alternative, particularly as a gear unit for slewing gear drives in bucket wheel excavators, consists of a FLENDER planetary gear unit with a bevel or bevel helical gear unit on the input side. The drive motor and a brake are arranged on a bracket on the gear unit, so that the system no longer needs to be aligned on site. A brake is always mounted between the motor and the gear unit in order to fix the boom in a defined position. An overload safety mechanism can additionally be provided on Flender gear units for cranes and slewing gears to protect the boom and the drive against inadmissibly high loads.
Your benefits at a glance
Compact, space-saving design
Low weight
Low noise level
Variable lantern gear drive lengths acc. to the customer’s specification
Modular design creates increased flexibility and multiple mounting options
No alignment on-site due to bracket with motor, gear unit, brake and coupling
Customized solutions for specific projects
Option of eccentric installation to enable the backlash to be adjusted between the pinion and the girth gear
Optimized sealing systems prolong the service life
Applications
Cranes
Excavators
Drilling platforms
Whether it is trolley travelling-gear, or rail-borne or tyre-borne travelling-gear, every application makes quite specific demands of gear-unit design that have to be taken into consideration. The Flender gear units for cranes, trolley and travel gear systems optimised for these areas of application stands out for highest possible reliability, highest possible quality and long service life, whatever the loads placed on the gear units, for example, on container cranes. Output torques from 10,000 up to 75,000 Nm can be realised for these Flender gear units for cranes, trolley and travel gear systems.
Your benefits at a glance
Extensive accessory range: motor bell housings, motor consoles and torque arms, etc.
Variable arrangement of drive shafts possible
Diverse mounting positions
Optimised sealing systems with long shaft-sealing ring service lives
Very long service life and long oil lives
Low weight
Low noise thanks to ground gear teeth and sound-damping housing
In many cases standard gear units from the universal gear-unit range can be fallen back on.
Your benefits at a glance
High flexibility for project-related special solutions
Short delivery times
Excellent price-performance ratio
Proven FLENDER Quality
Applications
Container cranes
Bridge cranes
Casting cranes
Tower slewing crane
Offshore cranes
