Gulf Construction Online - Dynapac packs power in new series

Roads & Bridges

The SD135C ... optimised operation.

Dynapac packs power in new series

01 February 2010

Dynapac has recently launched a medium-class Dynapac SD Series tracked paver, offering optimised operation and maximised operator efficiency with high laydown production rates of up to 750 tonnes per hour (tph).

The two new SD Series – the SD115C and SD135C – with excellent all-round viewing, innovative operating concepts and reduced engine and fan noise, are aimed at achieving high productivity on demanding city roads and highways, paving wearing, binder and base courses.

The new pavers offer a basic width of 2.50 m to 3 m, depending on the model and mode which, when equipped with the hydraulic extendable screeds, provide a working width of up to 6 m. This can be increased further with extension boxes to 8 m to 10 m, again, depending on the model.

To offer increased operator comfort and efficiency, the driver’s seat can be easily turned 45 degrees, providing the driver with an unobstructed view into the hopper, the auger compartment, screed, lane indicator and unloading lorry, without turning his head. The seats can be easily slid, pivoted and locked in every position.

The top cover of the engine compartment is divided to provide improved ease of accessibility to the engine. The upper hand of the side covers can be completely removed, allowing the lower covers to swing open, allowing easy access to all maintenance and service points such as oil filters.

The units feature a newly-developed control panel, with all function keys arranged according to the function group and frequency of operation. All buttons are raised and waterproofed, allowing safe operation even without the operator needing to look at the keyboard.

The new paver features a 6 cu m capacity hopper and a laydown thickness of up to 300 mm. The SD135C is driven by a Deutz TCD2013 LO6 diesel engine rated at 140 kW at 1,800 rpm, while the SD115C is rated at 120 kW at 1,800 rpm.

“This low engine speed ensures reduced noise levels. These are reduced further by a thermically-activated fan control, particularly in the warm-up phase at the start of the shift operations,” says a spokesman for Dynapac. “In addition, sound is absorbed by insulated hoods, side flaps and rubber-cushioned cover sheets and mufflers, contributing to a stress-free production process and undisturbed operator concentration.”

The fan/cooler is also separately mounted to reduce vibration with a revised airflow on the main frame.
A 400-litre fuel tank ensures longer operation and reduced refuelling.

Featuring standard gas-heated screeds, electric-heated versions, including high compaction electric screeds, are optionally available to ensure reduced carbon dioxide emissions.

Internal stabilisation bars for the screed’s material guiding plates reduce setting up times when starting a new job.
The new SD Series retains many well proven features of Dynapac pavers such as the auger with a smaller inner drive unit, ensuring no material segregation. Other features include the patented screed system with four guiding tubes, excellent traction even on unbound surfaces and no reinforcement of the screed, the spokesman says.