This vacuum lifter is designed to demould, lift and turn the precast concrete tunnel segments in one movement. Easy, fast and without damage to the product.
Concrete segments, keystones and lining segments
All our TBM lifting solutions are able to handle the precast concrete tunnel segments, the keystones and the lining segments.
Transport tunnel segments to the erector
The tunnel segments are moved to the erector and turned 90 degrees to meet the erector’s position.
Positioning in tunnel wall
We offer vacuum lifting solutions which operate as part of the erector to position concrete segments inside the tunnel wall.
Lifting solutions for production concrete segments till tunnel walls
We offer complete lifting solutions for the handling process of precast concrete tunnel segments and tunnel linings. From production to positioning the concrete segments inside the tunnel wall. All our lifting equipment are able to handle both tunnel segments, keystones and lining segments.
Production concrete segments
Handling at the production factory goes easy and fast by a vacuum lifter. To demould, lift or turn, no embeds are needed. Moreover, due to the divided surface pressure it is possible to demould after 8 till 10 hours. Would you demould by embeds the hardening time would at least be 24 hours!
The concrete segments are poured with the convex arch facing upwards (extrados). The segments need to be turned 180 degrees to meet the requirements of the TBM. The rotational movement can be done by a standalone turning device or built-in as a function of the vacuum lifter.
Transport a stack of concrete segments
We designed a clamp lifting device to handle a stack of concrete segments. The clamp is able to lift a stack on or off a truck or down the tunnel shaft into the TBM area.
Handling concrete segments in the TBM
To handle the concrete segments in the TBM two separate vacuum lifters are used. The first vacuum lifter moves the segments and keystones from transport to the erector. During handling the suction pad turns 90 degrees to meet the erector’s position.
The second vacuum lifter operates as part of the erector and positions the segments inside the tunnel wall. To meet all required positions the device is able to turn 360 degrees.
Curious for more information about our lifting equipment for the TBM industry?
With our years of experience, we are able to design custom made lifting equipment for your specific situation. Contact the Aerolift team for more information.
More information about our complete lifting solutions for other industries: