At 24.5m in length and driving atop no fewer than 40 tyres fixed to wheels riding on 11 axles, it is the largest trucking unit of its kind to ply the roads of Hawke's Bay.
It is also the largest in the country operating under High Productivity Motor Vehicle (HPMV) regulations introduced in May 2010 to drive forward efficiency, and is embraced by the New Zealand Transport Agency and industries involved.
The trailer sections of the Bay's new giant, which is the latest addition to Emmerson Transport were designed and built by Kraft Engineering in Rotorua with the bodies made and fitted by Fruehauf in Feilding. Kraft worked with the NZTA in designing the super B-train concept required.
The regulations are designed to up the size of trucking units using the roads, but not just in the pursuit of increasing productivity, acting regional state highways manager Gordon Hart said.
"It is a win-win for both the community and in terms of productivity," he said.
In terms of productivity, the size of the rig meant greater loads of processed product from the Pan Pac mill could be carried, reducing the number of journeys a more traditional B-train rig would make.
Four rigs now deliver the loads which, when a second planned HPMV unit is set to arrive before the end of the year, two will do.
Which means fewer truck movements on the roads and better productivity - and an environmentally friendly reduction in overall fuel use.
The standard total load is around 44 tonnes - the new rig is 62.
The benefits spill over to other road users and communities, Mr Hart said.
Featuring the latest technology, the rig is quieter as it rides on air-bag suspension systems which reduces road noise - and does not use air brakes which can be the bane of people living near heavy truck routes.
The kevlar-reinforced side curtains bypass the need for securing chains over the pallet-borne cargoes, which means no rattling chains on empty return journeys to the mill.
"We have long been trying to reduce the noise of trucks on this route," Mr Hart said, adding that the NZTA, Pan Pac and Emmerson Transport had all worked closely on the project to ensure the community near the traffic routes got a better deal.
"All the way through this we have worked on the positives for everyone."
The route between the Whirinaki mill and the Port of Napier, which had undergone months of analysis, was trialled over December and into the start of this month.
Basically, the rig had to fit the roads and roundabouts it would encounter on the journey taking in Prebensen Drive, Bridge St and the Ahuriri bypass.
Testing included the use of video cameras attached to the underside of the unit to watch closely the path of the wheels in turns right throughout the entire route.
The Kenworth/Cummins 580-powered rig is a major investment for Pan Pac and Emmerson, with Pan Pac's operations manager Neil Weber describing the price tag as "north of $600,000."
As with Emmerson's managing director, Ian Emmerson, Mr Weber was delighted to see the new rig on the road.
"It's been a lot of work by a lot of people - it's quite an achievement to now see it working," Mr Emmerson said.
Driver Shane Shepherd, who has 28 years' experience on big rigs, said initially he had been aware of the size, but that soon disappeared.
"It is great to drive and has advantages over more standard trucks."
He went through and intensive 10-day trial with the rig and quickly adapted to it.
Even the tighter roundabouts on his daily route were no problem - "nice and tidy".