SENNEBOGEN has launched a number of models in the crawler cranes category combining the best of engineering applications and green technology.

It recently unveiled the new 2200 E-Series in the 80-tonne class in the course of converting to the current engine generation. The series comes with a broader undercarriage, higher lift loads and optimised hydraulics.

As a classic construction machine, the 2200 crawler crane offers abundant force reserves with a 120 kN winch and rope speeds of up to 125 m per min. To meet Tier 3b/4i requirements, the 2200 is powered by a Cat diesel engine offering 186 kW/253 PS power.

Thanks to the Cat diesel engine and an optimised multi circuit hydraulic system, effective lifting operation is always ensured, according to a spokesman for the Italy-based manufacturer.

“As the first crawler crane of the E-Series, the 2200 with ‘green efficiency technology’ not only satisfies the Tier 3b/4i requirements, thanks to Eco mode, it is also impressive due to the high energy efficiency and the Sencon control and diagnostics system,” says the spokesman.

A newly developed telescoping crawler undercarriage with a stabilising width of 5 m ensures optimal stability and high loads. And the machine remains easy to transport with a track width of just 2.6 m and 3.5 m.

The crane’s newly designed rear ballast offers lift loads to 80 tonnes, and it is quickly mounted, thanks to the innovative self-mounting system.

The lattice boom can also be variably designed from 12.1 m to 59.7 m in accordance with the Sennebogen modular system. Moreover, three fly boom variants with 13.1 m to 24.3 m offer additional flexibility on the construction site.

The 2200 also offers easy maintenance with centrally-accessible maintenance points, clearly organised design of its maXcab comfort cab for continuous relaxed work, and unhindered overview, the spokesman adds.

655 HD

The first machine in Sennebogen’s crane line to feature green efficiency technology was the 655 HD duty cycle crawler crane, which combines economy and environment friendliness. In developing the 655 HD crawler crane and its numerous variants, Sennebogen focused on combining quality workmanship with cutting-edge equipment.

For example, it is just as suitable for use with diaphragm wall grabs and piping machinery as it is with drag buckets and leads. Both of its 16-tonne winches are driven by high-pressure, variable hydraulic motors, and deliver highly efficient power transmission, the spokesman says.

Elaborating on some of its attributes, he says: “The 655 HD’s sturdy mechanical components are particularly well suited to dynamic tasks. They include extremely wide, robust pulleys which keep ropes reliably in place and can withstand huge loads. And the newly designed fairlead keeps lateral movement in the luffing rope to a minimum, thanks to a pulley rope guide in the base of the boom.”

Some of the “green-friendly” features of the 655 HD include temperature-controlled fan drives, an automatic start stop system and cutting-edge exhaust gas treatment, all of which boost performance but minimise fuel consumption and emissions. It is fitted with a powerful Caterpillar diesel engine with 261 kW and multi-circuit hydraulic system for optimum capacity in every situation.

Other crawler cranes recently introduced by the company include the 6130 HD E-Series and the 673 R-HD.

6130 HD

The 6130 HD E-Series duty cycle crawler crane is particularly well-suited for heavy-duty applications such as in foundation engineering.

With a power rating to 708 kW and a robust design, this machine is made for operation with large diaphragm wall grabs, and for casing oscillating and leader operation. Two winch variants with 25 kN or 30 kN hoisting force can be installed and enable high rope speeds. A newly designed boom has been specially configured for dynamic use requirements. Simultaneously, a slewing ring with a particularly strong design with large gearing ensures high torque and robust operation as well as long service life even under high loads.

A newly designed fairlead in the lower boom section facilitates low-wear rope guidance and a long component service life. As an additional innovation, the 6130 HD comes with a newly designed telescoping undercarriage.

Retracted, the undercarriage has a transport width of less than 4 m while in use the machine has a comfortable 5.1 m width that promises stability. With the help of the hydraulically adjustable A-frame, the 6130 HD can also independently ballast itself, meaning it is operational in no time, the spokesman points out.

The 6130 comes in two motorisation variants – the Cat 570 kW/775 PS and 708 kW/963 PS diesel engines. It also features a modern maXcab comfort cab for sustainable relaxed work, excellent ergonomics and Sencon control and diagnostic system.

673 R-HD

With the 673 R-HD, Sennebogen presents a powerful 70-tonne crane, whose stable crawler tracks and continuously telescoping boom arm render it extremely flexible and reliable. The machine performs impressively on the job with its highly robust design and compact dimensions.

Less than 3 m wide on the highway, the 673 R-HD can be transported quickly and easily and is ready for use as soon as it arrives at the site. The unit easily gets the job done with its 36-m-long boom arm. The four-stage telescoping boom extends smoothly under hydraulic actuation, with all functions fully available even under loads.

As a telescopic crane of the new E-series, the 673 R-HD is powered by an efficient 160 kW Deutz diesel engine that satisfies, Tier 3b/4i emission standards thanks a soot particle filter and exhaust after-treatment system.