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CEA: Rolling, rolling, rolling

The Dynapac CEA CC2200 Asphalt double drum roller represents the latest in double drum roller technology. Image: CEA.

An unassuming machine that plays a crucial and often unseen role in preparing and maintaining the extensive roadways is the road roller. 

Have you ever thought about what machinery is used to prepare and keep roads flat? They are called asphalt rollers, and simpler devices are often found at sporting grounds across Australia. However, a very specific device does much of the heavy work for flattening and smoothing roads.

These workhorses of the construction industry are not known for being glamorous, but their impact is undeniable. From ensuring smooth and safe journeys to laying the foundation for lasting infrastructure, road rollers are the silent partners in building the roads that connect us and power the economy. 

Double drum asphalt rollers are also known as tandem rollers or vibratory rollers. They are workhorses of the road construction industry. These beasts of the road are used to compact asphalt pavement, ensuring it is dense, smooth, and durable. The rollers achieve compaction through a combination of their weight and vibration.

So, how are they influencing projects around Australia? Dynapac CEA has a range of high-quality pieces of capital equipment, including the Dynapac CC2200 Asphalt double drum roller.

The Dynapac CC2200 has a rolling width of one and a half metres. They are designed with efficiency in mind, derived from operational features that deliver high-quality surface finishes. 

Those operational features include soft starting and stopping to prevent unevenness or cracking in the asphalt layers. This allows even an unskilled operator to start and stop without leaving marks. In a panic situation, the machine will drop out of the soft mode and brake immediately, signalling the need for an emergency stop.

Feature packed

Several features of the CC rollers make servicing quick and easy, ensuring maximum uptime. Using a double pump vibration system eliminates the need for a vibration valve, making the system more efficient, aiding servicing, and reducing fuel consumption. 

There is one pump for the front drum and one for the rear, which can be shut off. With a volume of 750 litres for the CC2200 – CC3300, 900 litres for CC4200 and as much as 1400 litres as an option for CC5200 – 6200, it gives ample water resources that can be used later for other purposes.

All machines can be equipped with the optional offset drum (split drum and combi rollers have offset as standard.) This, in combination with the asymmetric cab, makes the machines very easy to operate.


 

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The CC2200’s articulated steering system provides great flexibility, allowing the front and rear halves of the machine to pivot independently. This enables tighter turns and improved manoeuvrability in confined spaces, navigating around obstacles, or following curves on winding roads. 

The CC2200 also offers adjustable vibration frequency and amplitude, allowing operators to tailor the compaction process to different materials and project requirements.

Compared to larger rollers, the CC2200 boasts a relatively compact footprint. This can be advantageous in tight job sites or where manoeuvrability is essential.

Staying in control

One way of achieving high-quality compaction is to optimise the ergonomics for the user. This ensures that operators have continuous visibility of the operation and comfortable access to the controls. 

You can tailor your roller to local conditions, including the operator’s platform with a Roll Over Protection Structure (ROPS) cab and air conditioning.

The clear LCD control panel gives operators the information they need. All the gauges are displayed, and the operator can change between menus at the touch of a button.

Dynapac CEA has equipped the machines with slideable and turnable seats and steering modules for the best ergonomics. The engine is placed on the rear module with less heat and noise for the operator. The very low vibration level on the operator´s platform also adds to the operator’s comfort.

Stronger sustainability outcomes

The new range of CC2200s are powered by Cummins QSB 3.3, QSB 4.5 or Deutz TCD3.6 engines. Both Stage IIIA/T3 and Stage IIIB/T4i versions are available. Dynapac’s automatic engine idling system, together with a highly efficient hydraulic system, makes fuel consumption low and efficient. Infinite adjustable maximum speed is standard.

Daily service points are few and easily accessible. The position of the engine on the rear module and the large, easy-to-open engine hoods contribute to easy and fast service. The service info displayed directly on the driver’s LCD also facilitates service jobs. 

At the same time, the periods between servicing have been extended. Corrosion-free water tank and sprinkler tubes, in combination with easily accessible filters, ensure reliability and easy maintenance.

This improved maintenance schedule provides better environmental outcomes for any organisation taking one on board.

Efficiency enhancements have saved some eight kilowatts in the operation of a typical model in the range. Dynapac CEA also offers an optional EcoMode, which offers fuel savings of up to 15 per cent. 

It also makes the already quiet CC roller even more silent. Biodegradable hydraulic fluid is optional, while emission-controlled engines are standard. 

This article was originally published in the April edition of our magazine. To read the magazine, click here.

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