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IDERS
Page 39
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reckons that Big D's latest universal slider solution for both the company and operators want greater choice. "Our new slider carriage dealer-fitted In the UK and Is suitable for makes and models of fixed cast or pressedfifth-wheel couplings with DIN-size mounting " he reports. The dealer simply unbolts the coupling, fits our slider carriage and refits the wheel."
re are manual and air-operated models and can also supply various heights of mounting allowing the coupling height to be varied from mm. List price Is £250 and weights start at ding fifth-wheels account for over half of UK despite the weight penalty. They are popular they offer flexibility to couple to a variety ler lengths and they help operators stay the fifth-wheel position can be adjusted to the right weight is imposed through the king pin, thus avoiding trailer bogie overloads.
Over the past couple of years, the design of sliding fifth wheels has changed considerably with a shift towards modular components that save weight and provide versatiiity. The slider mechanism is now usually a frame which accepts standard fifth-wheel couplings; the height can be adjusted by simply changing the mounting feet.
Jost is Introducing a replacement for its popular SV sliding fifth-wheel which accounts for 70% of its UK fifth-wheel sales, according to MD Roy Taylor The HG (for New Generation) slider Is 25% lighter than the SV; innovations include the replacement of cast pedestals with fabricated components that wrap round the rail to provide extra strength. The NC has a universal bolted mounting that is adjustable to a range of frame widths and allows the slider to be adjusted to match the actual position of the fifth wheel on the tractor to optimise axle and load dis tribution.
It also means the sider overall length can be shorter saving weight. The MG can be specified with the JSK37 or 36D fifth wheels.
Fontaine's VBG 135SF slider now offers 525mm of travel in 37.5mm increments in its standard form for better load distribution; it can be extended up to and beyond 750mm. Heights range from 173-292mm. It accepts the 150SP pressed-steel and 150CI cast coupling and, at 223kg complete with fifth wheel, is claimed to be the lightest slider on the market.
Jost MG (New Generation) slider is 25% lighter than the SV. The SV, which MG is replacing, accounts for 700oof Jest's Ui( fifth wheel sales.