Sennebogen has added another model to its range of telescopic crawler cranes, the 683 E. Offering a load capacity of 80 t and main boom length of 42 m, this ninth model in the series fits into the gap between the existing 673 E and 6103 E.
The new 683 E is suitable for a wide range of applications, equipped with a heavy-duty boom and powerful travel and winch motors. It is well-suited to building and below-ground construction, bridge construction, pile driving during sheet pile installation, and as an agile auxiliary service crane. Featuring a robust design, the mid-size 683 E can easily handle pick-and-carry tasks as well as lifting operations on a 4-degree incline.
The 80 t crane is powered by a 186 kW Cummins engine. The main and auxiliary winches are driven by a high-pressure piston engine, which delivers a tractive force of 72 kN each and cable speeds of up to 120 m/min. The individually configurable equipment can be supplemented by various attachments, options, and extra functions such as a programmable working range limiter and safety and low-temperature packages, thus appealing to users in specialised civil engineering and hydraulic engineering sectors, among others.
The four-section, full-power boom can telescope to a length of 42 m in the standard configuration. Thanks to a multi-cylinder technology, the maintenance-free boom control system provides variable telescoping and is always force-locking. This means that any desired boom length can be reached quickly and easily, and the best payloads can be achieved automatically. As an option, the reach can be further extended to up to 57 m with a double folding jib that can be angled, making it particularly attractive for structural engineering applications.
The telescopic crawler undercarriage has a maximum track width of 4.2 m. Depending on the requirements, this can be reduced symmetrically or asymmetrically to as little as 2.68 m, with the load charts being automatically adapted to the respective track width. Positioning of the machine can be performed quickly thanks to the robust design of the undercarriage, which is highly beneficial when working on inclines and for pick-and-carry tasks.
The 683 E not only boasts excellent load values at inclinations of up to 4 degrees but can even travel with 100% of the specified load on the hook. The standard 800-mm triple grouser shoes installed offer a high degree of stability while reducing floor pressure to a minimum.
In addition, the 683 E is capable of unloading itself from a truck with the aid of a radio remote control. With crawler tracks attached, the crane has a transport width of only 3.5 m. After simple disassembly of the crawler, not only is the transport weight reduced by almost 20 t, but the transport width also contracts to 3.0 m.
The spacious Maxcab is another highlight, which has a possible standard tilt of 20 degrees. Optionally, the crane can be equipped with a hydraulically elevating cab that can be tilted 30 degrees at an eye level of 5.55 m. Large-area window elements give an optimal view of the entire safety and work area.
The crane can be operated from outside the cabin via a radio remote control. Cameras and a large monitor extend the operator’s field of vision to the rear and right side, and can also be used to monitor the winches. The electric dual-axis control system features joystick control buttons for optional attachments and a graphically displayed load moment limiter. The system provides an audio-visual warning and locks the control lever when the load limits are reached or exceeded. The intuitive Sencon control system delivers important diagnostics as well as valuable data on payloads, boom angle, boom length and radius.
The Sennebogen 683 E also requires less maintenance, owing to its central lubrication point for the boom base axle, luffing cylinder and slewing ring. Plus, optimum access to the service points and clear identification of the components save valuable time in daily operation.