Wirtgen's SP 33 slipform paver showcased at bauma 2025 offers versatile concrete paving in offset and Crosspave modes, allowing for a range of applications with efficient maneuverability. It features guided operating, load-dependent engine management and stringless paving capabilities for precise and cost-effective construction.
Wirtgen photo
The machine can be configured for use in almost all situations encountered on construction sites, according to Wirtgen.
Wirtgen's compact SP 33 is the manufacturer's latest slipform paver model for the construction of monolithic concrete profiles.
Because of 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, according to Wirtgen.
Two track units with parallelogram swing legs at the front and a laterally adjustable single-track 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 1.3 m in height as well as sewer and drainage channel profiles. Concrete slabs with a paving width of up to 2.2 m also can be realized without any problems, or up to a width of 2.4 m in combination with a Trimmer, said the company.
In Crosspave mode, the track units are turned by 90 degrees and the machine then paves transverse to the direction of travel. The slipform mould 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 particularly versatile, according to Wirtgen.
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 mould, the vibrators, the sensors, etc., intuitively, efficiently and without errors, according to Wirtgen.
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 leads to low diesel fuel consumption and simultaneous reductions of CO₂ and noise emissions, said Wirtgen.
The operator also is 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 AutoPilot 2.0 stringless paving system for all offset pavers and placer/spreaders. This completely eliminates the need for control by a physical stringline, which leads to considerable savings in terms of time and effort and increases the safety of the personnel on the construction site, according to Wirtgen. 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.
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