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York wins S&N lightweight curtainsider trailer order

4th September 1982
Page 11
Page 11, 4th September 1982 — York wins S&N lightweight curtainsider trailer order
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'ORK TRAILER has produced a lightweight curtainsider specificsion for Scottish and Newcastle Breweries and won an order for 23 emi-trallers. The first of the new trailers has just gone into service Ind the rest, all built at York's Northallerton plant, are to be lelivered over the next few months.

S & N's requirement was for omplete 12.2m (40ft) curtainided semi-trailers at no weight lanalty compared with the platarm trailers currently operated y the brewer. In order to be ible to continue to carry existing 0.8 tonne (20.5 ton) loads, the equired kerb weight for each .emi-trailer was 5,000kg (4.92 ons).

York's engineers set themelves a target weight of somehing below this and they say the irst production trailers weighed n at some 30kg less even than hat weight. They refused to reveal exactly that the weight is, hinting at further weight saving devices up their sleeves.

The SL38C-S lightweight curtainsiders have three-piece steel main rails with castellated centre sections. Further weight saving results from aluminium components but York had to restrict the use of these to avoid making the cost of the semi-trailers uncompetitively high. For example, some of the body cross members are made of steel, some of aluminium, and the usual steel curtain poles were replaced with aluminium ones. Another un common aluminium feature is the raised chock extrusions used for the side raves.

S & N specified a number of load restraint items but insisted that the target weight should still not be exceeded. Three centre posts, which form the support for an aluminium centre partition, were used instead of the normal one so that the usual heavy roof spine need not be fitted. The roof itself is a onepiece aluminium sheet, flat rather than bowed, to give an extra two inches of height, and the front bulkhead is lined with aluminium plank.

The two load-restraint tracks are each mounted 533mm (1ft 9in) inboard of the curtain tracks and are used to support 0.6m (2ft) square matrix nets which can restrain the variety of loads (barrels, tanks, crates and cans) to be carried in the trailers.

Each of the new curtainsiders has a gross trailer weight of 32,770kg (32.25 tons) and dual king pin positions at 864mm (34in) and 1,219mm (48in) so that they may be operated at 38 tonnes gcw if the weight increase is ever allowed.

S & N specified Dunlop Pneuride air suspension, SAB automatic brake slack adjusters and Monsanto Clear Pass rain flaps for the new semi-trailers.

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Locations: York

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