The SP 33 Enables Concrete Paving in Offset and Crosspave Modes

At this year’s Bauma, Wirtgen is showing the SP 33, its latest slipform paver for the production of monolithic concrete profiles. The machine can be used for paving in both offset and Crosspave modes. This enables the realization of various different paving applications with only one machine.

Versatile, Maneuverable, and Efficient: The Slipform Paver SP 33

Wirtgen is showing the compact SP 33 – its latest slipform paver model for the construction of monolithic concrete profiles. Thanks to its modular construction concept and a wide range of setting options, the machine can be configured for use in almost all situations encountered on construction sites. Two crawler units with parallelogram swing legs at the front and a laterally adjustable single crawler unit at the rear enable zero-clearance paving and maximum flexibility. In offset mode, it can pave curb and gutter profiles, rectangular profiles, and concrete barriers up to a height of 1.3 m as well as sewer and drainage channel profiles. Concrete slabs with a paving width of up to 2.2 m can also be realized without any problems, also up to a width of 2.4 m in combination with a Trimmer. In Crosspave mode, the track units are turned by 90 ° and the machine then paves transverse to the direction of travel. The slipform mold is centrally mounted under the machine, which enables the paving of concrete slabs with widths of up to 3.0 m. The quick and easy conversion from one paving mode to the other makes the machine extremely versatile. In addition to delivering precise paving results, the capabilities it offers therefore also make the machine a particularly cost-efficient paving solution.

Guided Operating for Concrete Paving, Transportation, and Setting Up the Paver on the Construction Site.

The new operating concept with event-driven graphic visualization assists operators in their work with both paving modes. The machine control panel provides separate zones for clear and simple visualization of the currently relevant machine information for each of the three main working phases: Transport, Set-Up, and Concrete Paving. For instance, in Set-Up, it visualizes the set-up process on the construction site in a logical sequence that guides operating personnel through the successive set-up of individual systems such as the crawler units, the mold, the vibrators, the sensors, etc., intuitively, efficiently, and without errors.

Load-Dependent Engine Management in ECO-Mode

The load-dependent engine management system identifies every working situation and the power it requires and automatically adjusts the speed of the diesel engine accordingly without intervention on the part of the operator. This ensures that the diesel engine runs within the envelope of optimal efficiency as often as possible. This enables low diesel fuel consumption and simultaneously reduces CO₂ and noise emissions.

Stringless Paving with AutoPilot 2.0 Ensures High Process Efficiency

The operator is also assisted by the AutoPilot 2.0 control system. In concrete paving, pavers are traditionally controlled by the scanning of a physical stringline. As an alternative, Wirtgen offers its field-proven AutoPilot 2.0 stringless paving system for all offset pavers and placer/spreaders. This eliminates the need for a physical stringline for controlling the paver, which leads to considerable savings in terms of time and effort and increases the safety of personnel on the construction site. The system controls both the height adjustment and steering of the machine. AutoPilot 2.0 also enables fast and precise paving of tight radii and complex geometries. A GNSS signal and, depending on the configuration, various local sensors, such as an ultrasonic sensor on the machine, act as a reference.