OLIVER LANDPOWER LTDThat is why Larrington Trailers are the only UK based trailer manufacturer which has invested in a 8 meter plasma cutter and 8 meter brake press as well as the latest SolidWorks Computer Aided Design package.
Larrington Trailers are based in Boston, Lincolnshire (UK). Trailers and Machines are wholly manufactured at the Boston factory, with items such as commercial axles and brakes supplied by leading manufacturers in their fields.
The use of a single tipping ram to tip a trailer body is currently the most popular method used throughout Europe.
Here in the UK cheaper twin ram systems are still fitted by most manufacturers, so what are the advantages of using a single ram?
The ram is mounted in the strongest part of the chassis; in-between the axles.
That means the trailer’s axles carry the weight, not the tractor (which would be the case if the ram was mounted forward of the axles).
As the Harvester trailer only tips to 53° the ram is located in front of the axle.
The single ram directly lifts the body upwards (as opposed to pushing the load backwards against the hinges). This makes the trailer safer as the force that the ram exerts to lift the body (and the force exerted against the hinges) is reduced.
The position and angle of the ram also means only 100 psi oil pressure per ton of lift is required.
1,600 psi will therefore lift 16 tons, while twin-ram trailers would require 2,450 psi to lift the same weight and slightly overloading would mean the tractor’s maximum 3,000 psi would not lift the body.
Ram seals rarely need to be changed as the pressure required by the Larrington trailer/ram design is much lower, reducing wear.
Single ram trailers are more stable. A tractor only has a single pump, in twin-ram trailers the oil pressure is shared between two rams. The ram with the smaller load will extend further, twisting and destabilising the trailer. A single ram lifts the body without twisting it.
Because of the unique design, Larrington Trailers tip quicker than any other tipping trailer we’ve seen.
The floor is constructed using a single full length 4mm plate.
Other manufacturers use 3 or 4 floor plates with sectional cross welds that cause damage to soft crops when they slide out of the trailer. The Larrington one-piece floor is smooth throughout.
Mud guards are welded to the sides of the body mud flaps protecting against spray.
The “eye” is the most significant design change for 2011. It gives the driver excellent vision inside the trailer, which enables the driver to reduce damage to the crop being loaded.
The “eye” includes a full width removable plastic screen for use when loading cereal crops.
The sprung drawbar has a 20mm full length plate welded underneath it, with a complete 6mm top cover, folded and welded on top.
The swivelling drawbar ring allows oscillation between tractor and trailer, reducing wear on the drawbar ring.
The swivel drawbar stand folds under the drawbar, so that it does not get removed or lost.