Supplied by dealer Orwell Truck & Van, the Arocs will spend most of its time transporting 10-tonne slabs of steel that serve as ballast to secure the Norwich-based operator's new £1.1m 300-tonne Grove mobile crane during operations.
The Arocs will also be used to carry demolition equipment, as well as other heavy-duty tasks.
Quinto's 625bhp Arocs made its debut on Orwell Truck & Van's stand at the 2015 Norfolk Show. It has a turbo retarder clutch which works in conjunction with the 16-speed Mercedes PowerShift 3 automated transmission, and can handle 3,000 Nm of torque.
"We have to get into some tight and awkward places and, after driving one of our previous ballast lorries, I realised that, for low-speed shunting, its traditional dry clutch just wasn't up to the job," says Quinto's co-owner Oliver Arnold.
"We did our homework, read up on the revolutionary new turbo retarder clutch, which Mercedes-Benz has developed with Voith, and concluded that it was exactly what we needed," he adds.
Wear-free and fuel-efficient, the turbo retarder clutch has its own integrated primary retarder, helping to stop a fully loaded rig of up to 250 tonnes gcw safely, without the need for a separate retarder.
"The new truck is now up and running ... and it's given us a capability that we were seriously lacking previously," says Arnold.
The Arocs will be maintained by Orwell under a Mercedes R&M contract.