The Böcker AHK 36e trailer crane guarantees complete freedom of placement on the construction site. Thanks to its electric drive and battery, the crane can be set up anywhere, operated independently, and charged during operation using the 230 V charging system at any standard household outlet.
During a test run for the Heiße roofing company in Marsberg-Essentho, the AHK 36e demonstrated both its powerful performance in battery mode and an impressive range while re-roofing the rear of a single-family home in Bad Wünnenberg. First, the AHK 36e used its manoeuvring drive to move to the optimal setup location in the driveway. Independent of any external power supply, the lithium-ion battery provided the energy needed for maneuvering and setting up the crane. Next, the old concrete roof tiles were removed; the crane transported them from a distance of 23 meters over the ridge and into the container. With each lift, the tipping basket was filled with approximately 250 kg of old material. Thanks to the 8-kW electric drive, the roof removal process took place quietly yet very efficiently in the middle of a residential area. Within 2 hours, the roof was ready for re-roofing. In the next step, the AHK 36e lifted soft-fiber wood insulation panels for above-rafter insulation across the building. Here, too, the trailer crane demonstrated its long range, moving a 250-kg load on the pallet fork to the installation site.
An ideal charging option for the electric crane was found in the garage of the single-family home at the existing 230-volt outlet. Thanks to its innovative parallel operation, the crane can continue to be used even while charging. The 15-minute boost function during charging also accelerates the battery’s energy intake. In standby mode, the battery recharges from 20% to 80% in less than an hour. The AHK 36e is designed for optimized energy consumption, requiring significantly less energy than comparable cranes with internal combustion engines. To minimize energy consumption, a Stop-and-Go-Automatic system limits power usage and activates the electric drive only when necessary. The low power consumption conserves the battery charge and extends the operating time without a power connection.
In its all-electric version, the AHK 36e offers all the proven advantages of the class leader among trailer cranes. It lifts up to 2,400 kg and achieves boom lengths of up to 36 m with a gross vehicle weight of just 3.5 t. It comes standard with foldable swivelling outriggers, self-levelling, rotation and erection angle restriction for the mast package, and a “Go Home” function. Using the Easy-Lock system, the crane can be converted into an aerial work platform in no time at all. It can also be used in personal safety mode for fall protection.
More information on Böcker trailer cranes is available here.
