ZIMM drive technology for STS and container cranes
Ship-to-shore and container cranes must perform locking, positioning, adjusting and tensioning functions reliably during terminal operation. Robust mechanics, clearly defined interfaces and repeatable movements are essential so that gantry travel modes, spreader functions and rope-guided systems operate without disruption and can be integrated cleanly into the crane logic.
ZIMM provides a modular solution kit for this: ZA-I and ZA series electromechanical actuators as well as screw jacks perform linear motions for locking, positioning, adjusting and tensioning. This creates robust solutions for STS/container cranes, port equipment and retrofit tasks where function, integrability and continuous operation are the priority.
Spindle with trapezoidal or ball thread
Standardised flanges and matching parts
Corrosion protection ex works
Integrated sliding swivel bearings
Sealed gear
Lubrication without downtimes
Flexible drive configuration
ZA-I-Series | Actuator
High precision and flexible drive configuration for reliable locking, positioning and adjustment movements: ZA-I series actuators operate as a coaxial drive in a compact, powerful and repeatable manner. With single-stage or two-stage planetary gearbox as well as direct drive, they can be adapted to duty cycle and system design. The ZIMM modular system offers perfectly matching parts.
Spindle with trapezoidal or ball thread
High performance gearing
Standardised flanges and matching parts
Corrosion protection ex works
Integrated sliding swivel bearings
Sealed gear
Lubrication without downtimes
Ready for all installation positions
ZA-Series | Actuator
Excellent energy efficiency and low maintenance compared to hydraulic solutions: ZA series electromechanical actuators operate dynamically, precisely and repeatably. They perform motions for locking, positioning and adjusting. The spindle located inside the housing is protected against dirt, dust and water; high IP protection classes are possible. The ZIMM modular system offers perfectly matching parts.
ZA-Series | Actuator
Excellent energy efficiency and low maintenance compared to hydraulic solutions: ZA series electromechanical actuators operate dynamically, precisely and repeatably. They perform motions for locking, positioning and adjusting. The spindle located inside the housing is protected against dirt, dust and water; high IP protection classes are possible. The ZIMM modular system offers perfectly matching parts.
Spindle with trapezoidal or ball thread
High performance gearing
Standardised flanges and matching parts
Corrosion protection ex works
Integrated sliding swivel bearings
Sealed gear
Lubrication without downtimes
Ready for all installation positions
ZE-Series | Screw jack
Proven technology for reliable positioning, adjusting and tensioning tasks: ZE series screw jacks operate precisely, robustly and repeatably. Depending on the version and system design, they perform linear motions per gearbox or within the system. The ZIMM modular system offers perfectly matching parts.
Typical motion tasks in the STS/container crane environment
Safe-Lock | Locking the gantry bogies on gantry cranes
Depending on the operating mode, gantry cranes must be able to switch between normal travel, cross-travel, rotate mode and parking mode. For this purpose, the bogies are swivelled into alternative positions and then locked reliably. The locking function must release the selected position and hold it stably under load. At the same time, the upward and downward movement of the locking pin must be clearly controlled.
Benefits
Clear locking motion for controllable gantry travel modes
Repeatable pin positions for reliable locking of the selected bogie position
Robust electromechanical solution with clear end-position logic
Easy integration into crane control and gantry travel logic
Operating principle
A ZA-I series electromechanical actuator actuates the locking pin device
The motor-driven mechanism releases or locks the pin depending on the selected bogie position
End-position monitoring controls the lifting motion of the pin
After swivelling, the pin engages in the new position in a controlled manner
Application scenarios
Switching between normal travel and cross-travel mode
Locking function in rotate mode
Locking of defined parking positions
Gantry travel logic on gantry cranes in OEM or retrofit environments
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Spreader | Actuate locking and adjustment functions
Locking and adjustment functions in the spreader must be actuated precisely and controlled in a mechanically traceable manner. Especially in intermodal operation, repeatable motion sequences and full integration into the crane solution are essential. Continuous access by the crane management system to the respective function must remain possible at all times.
Benefits
Precise electromechanical adjustment motion for locking and adjustment functions
Full integrability into crane management and control systems
High functional traceability due to direct mechanical coupling
Suitable for clearly structured motion sequences with increased integration requirements
Operating principle
ZA series electromechanical actuators perform the adjustment motion
Opposing functional elements can be mechanically coupled via a direct shaft
This allows motions to be transmitted and synchronized in a controlled manner
The mechanical design of the overall system supports a traceable functional logic
Application scenarios
Spreader functions in container handling
Intermodal operating modes with high requirements for motion control
Fully electrically and mechanically integrated crane solutions
Retrofit or new design of locking and adjustment functions
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Backreach | Maintain rope tension on the container crane
In the landside area of the container crane, rope tension must be kept constant so that no slack rope occurs and the catenary trolley can be guided stably and precisely. At the same time, vibrations should be reduced and smoother rope running with lower wear should be achieved. The tensioning function therefore supports operational safety, guiding quality and ease of maintenance.
Benefits
Constant rope tension
Reduction of slack rope and vibration-related effects
More precise guidance and positioning of the catenary trolley
Lower wear due to smoother rope running and fewer bending cycles
Operating principle
Screw jacks generate the linear tensioning motion
The rope tensioning system at backreach keeps the ropes under controlled preload
This allows rope guidance and tension level to be adjusted repeatably
Fewer bending cycles support longer rope service life and more stable rope running
Application scenarios
Rope tensioning systems at backreach on container cranes
Retrofit of existing tensioning solutions
Crane applications focused on rope service life and smooth rope running
Systems where vibration reduction and precise guidance of the catenary trolley are relevant
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Are you planning a locking, positioning, adjustment or tensioning function in the STS and container crane environment? Then send us a brief description of the technical task together with the key boundary conditions such as load, stroke, installation situation, motion sequence and control requirements. ZIMM supports you in selecting ZA-I and ZA series electromechanical actuators as well as screw jacks for motion tasks in OEM and retrofit environments.