Leading body and trailer manufacturer Cartwright launched an exciting new triple temperature trailer at the TCS&D show which it believes is a first for the industry. It is yet another clear signal of the company’s intention to build market share in the temperature controlled sector as quickly as possible.
The game changing Tri-Temp (double deck) trailer from the expanding South Manchester manufacturer follows on swiftly from the successful launch of its lighter weight refrigerated trailer showcased at the recent CV Show. Cartwright confidently expects the Tri-temp to quickly attract serious interest from major supermarket chains.
Cartwright Technical Director Lionel Curtis commented: “Currently supermarkets (generally) run tri-temp straight trailers or tri-temps with a fixed double deck. We have taken what we believe is the unprecedented step of launching a triple temperature trailer with a moving deck.
“Our new trailer is in response to customer demand and effectively opens up the real possibility of tri-temp (refrigerated) lifting decks carrying out store deliveries. At the moment (many) supermarkets do store deliveries with single temps and in some cases with two temperatures with lifting decks,” he said.
Curtis and his experienced team of technical engineers have been looking at the possibility of developing a tri-temp trailer for frozen, chilled and controlled ambient produce since October last year.
The end result of their extensive research and development is a 44 pallet direct drive hydraulic lifting deck trailer with a capacity for eight pallets of frozen products and 18 pallets each of chilled and controlled ambient products.
The Tri-temp trailer offers all standard moving deck features including a hydraulic moving deck, direct drive hydraulic (not rope & pulleys) and high lift suspension to ease loading and unloading.
Cartwright also undertook development work around the air flow within the trailer to optimise air flow in all three compartments and so provide an even temperature distribution when loaded.
Furthermore Cartwright has achieved its aim to create a 44 pallet trailer with three temperatures with an aerodynamic sloping front on the trailer rather than a block front. Consequently this has produced fuel efficiency and roll stability benefits.
The Tri-temp trailer launch at the Temperature Controlled Storage & Distribution Show follows extensive temperature trials and testing by Cartwright which for the second time this year is unveiling a ground breaking new product to the temperature controlled industry.
Lionel Curtis added “We are excited that the new Tri-temp trailer with a lifting deck will offer supermarkets the capacity for the first time to have one single journey to a store with all three temperatures.
“We are confident the Tri-temp will generate serious interest from the major supermarkets and help us to achieve our objective of building market share in this sector and ultimately becoming a major player.”
Transport News Brief speaks to Lionel Curtis, Technical Director at Cartwright about safety testing of its products.
If a curtainsider trailer sheds its load all over the motorway then neither the police nor other road users are likely to be impressed. As a consequence prudent operators are likely to do everything they can to prevent such a distressing event occurring; and that may involve specifying curtainsiders that meet the voluntary EN12642-XL standard.
It indicates the ability of the superstructure to retain loads – and while the standard is not mandatory, curtainsiders without the distinctive logo that turn up at certain sites on the Continent are likely to be turned away on safety grounds.
A number of UK trailer manufacturers have tested their products to EN12642-XL including Don-Bur, SDC, Lawrence David and Cartwright.
One approach to EN testing is to use a dynamic regime which involves acceleration and braking tests and taking the laden trailer through S-bends and around a series of roundabouts. Another is to employ a static test and it is one that is favoured by Cartwright Group Technical Director, Lionel Curtis, because it imposes a greater load.
A static test typically involves mounting a hefty steel frame inside the trailer’s body – rigids bodied as curtainsiders can be tested to the EN standard too – attaching large airbags, then inflating them to see how far the curtains billow out. The test imposes a load on the front and rear of the trailer as well.
“We carried out the EN test ourselves then had it carried out again at an independent site used to test marine containers and witnessed by the Vehicle Certification Agency,” said Curtis.
The EN standard will undergo some minor modifications which come into effect next January. “We’re talking bits and pieces of detail, nothing more than that,” he says.
While Curtis is undoubtedly pleased that Cartwright products such as the new Acclaro curtainsider meet EN’s requirements, but observes some drawbacks. “The problem is it does not test the entire product,” he observes.
It does not for example address the strength of the trailer’s floor. Cartwright has tested floors to ISO1496 which involves imposing a 7,620kg axle load.
“We roll a heavy trolley up and down the floor five times to simulate the weight of a really heavy forklift truck. Then we measure the floor’s deflection.”
The tests are carried out in response to supermarket concerns over the extent of trailer floor wear. There is of course also the worry that having a forklift fall straight through a weak floor half-way through loading or unloading is likely to result in injury to the forklift driver and spark a health and safety inquiry; and may result in the company concerned being prosecuted.
Employees may also be injured if the trailer’s floor is slippery and Cartwright can carry out a slipperiness test. “It involves a pendulum with a shoe on the bottom which measures the level of energy absorbed,” he said.
Accelerated durability tests are important too, because customers want to know how long the products they have acquired will last.
Again, they’re not mandatory. “It’s questionable how many trailers you would sell however if such tests were not carried out,” he remarks.
Many standards only work if hauliers take them into account during day-to-day operations. To comply with EN12642-XL the load must be butted up against the headboard and the back of the curtainsider and kept a certain distance – 80mm from the curtains.
If part of the cargo is unloaded half-way through the delivery run, then the rearmost pallets must be strapped across in such a way that the entire consignment is kept together; so it’s down to the haulier, and of course the driver, to ensure this is done.
Business is booming at Altrincham, Cheshire-based Cartwright at present, with the new Acclaro curtainsider, which is constructed on a purpose-built production line, in receipt of an order from Ryder.
It has ordered more than 300 new trailers from Cartwright including 200 standard 4.2m pillarless curtainsiders, 50 curtainsiders with tail-lifts and nine curtainsiders with Manitou forklift carriers.
“Acclaro weighs 6.5 tonnes so it is well-optimised for operation at 44 tonnes and comes with a welded I-beam and cold-rolled steel side raves and cant rails,” said Curtis. “It’s fitted with either BPW or SAF running gear, a new front pick up plate cover has been installed and it features a new, full-width, aerodynamic treatment for the front bulkhead.
“It has an arched roof as well and can be fitted with a vortex generator at the back,” he adds. Both these features should help keep fuel usage down and minimise the customer’s carbon footprint.
“It comes with the Cartwright pedigree too,” he states. And in his view, not surprisingly, that has to be a major selling point.
Transport News Brief covers a varied range of news about the UK commercial vehicle and road transport industries. Published by the Society of Motor Manufacturers and Traders (SMMT) the website fuels a weekly e-newsletter that circulates to thousands of industry leaders, owners, operators, manufacturers, politicians and other stakeholders.
In addition to being a CV Show Partner, SMMT has a broad spectrum of discussion forums, technical groups and sections of the organisation dedicated to the commercial vehicle sector. The overarching committee for the CV industry is the SMMT CV Group.
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