Mobilis came to BKRS Crane Systems with the desire to purchase a sustainable, electric gantry crane for a project in the city center of Amsterdam. Given the limited space around the construction site, the gantry crane had to be equipped with a concrete pump. In order not to damage the old trees around the construction pit, the crane was allowed to stand a maximum of five meters above the sheet piling. As a result, the lifting height was also limited. Since the crane is used in the city center of Amsterdam, minimal noise nuisance for the surrounding area was also desired. BKRS designed a custom gantry crane, equipped with all the customer’s project wishes.

Martin Belder, Chief Foreman at Mobilis: “At BKRS you are immediately at the table with all the knowledge, a brief consideration can be made immediately whether something is possible or not. That’s the strength and then you can switch fairly quickly with the construction team.”

The project

In November 2021, a portal crane from BKRS Crane Systems was put into use for the construction of the Singelgracht garage-Marnix. Due to the limited space, the client was looking for a gantry crane that could be used to facilitate the construction site. The building materials are delivered by boats or at one fixed location at the construction site. The materials must then be transported to the right place by crane in the construction pit. Characteristic of this project was the desire to mount a concrete pump on the gantry crane. At the start of the project, the crane will be used to transport building materials such as mats and construction steel. Later, the overhead crane was equipped with a concrete pump, so that the concrete can easily be poured in the right place.

The gantry crane will be used by Mobilis for a period of one to one and a half years. One of the customer’s wishes was therefore: a crane in the colours of Mobilis. In addition, this green-purple crane had to be electrically powered, with a view to sustainability and reducing noise pollution for the environment.

Every crane that runs on a rail must be equipped with an audible and light signal to alert people working on the rail or next to the rail. For this project, the crane is equipped with a special driving alarm. This only goes off when someone is standing near the corner of the crane. The crane itself produces a noise of only 80 decibels at a distance of 1 meter. In this way, the environment experiences less noise pollution.

A sustainable gantry crane

To realize a sustainable crane, it is equipped with an electric motor. In addition to this, the crane is equipped with frequency-controlled motors that ensure that fewer starting currents are needed. As a result, the grid is gradually and less loaded, and there are fewer peak flows.

Buy Back Garantie

To ensure that the gantry crane would work properly, it was extensively tested in our workshop in Veghel. After the crane had successfully completed this Factory Acceptance Test, it was dismantled and transported in parts to Amsterdam. Our Buy Back Guarantee ensures that BKRS buys back the crane after the project has ended so that it can be reused for other projects. In this way, BKRS also contributes to the sustainable character of this project.

The delivered crane

About the client

Mobilis has extensive experience in the construction of a wide variety of concrete structures. For example, they work on and on plants in the (process) industry, treatment plants, pumping stations, tunnels, bridges, viaducts, locks and railway environments.