HiSpec will be demonstrating its K40, 24ft tri-axle Kompactor trailer at Grass 2026 next week. Renowned as a multipurpose trailer, its compaction and off-loading mechanism makes the Kompactor capable of transporting and off-loading a wide range of materials, including silage.

HiSpec claims the compaction feature means the payload can be increased by as much as 30%.

As the name suggests, the principle behind the Kompactor is to compress the material as its being loaded.

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The trailer is loaded from the middle to the rear of the body. A moving floor and headboard are manually controlled via a spool using two hydraulic cylinders. These compact the load against the rear tail door, leaving room for more forage.

The moving headboard can be used to compact the load on the move as little or often as the operator chooses. Once compacted, the headboard and floor retract to its original position. In a similar fashion, the trailer is then unloaded by first opening the tail door, and then engaging the rams, which moves the floor and headboard to the rear, which pushes the load out the back of the trailer.

A large window is embedded into the headboard for operator vision. The firm says unloading takes in the region of 40 seconds to a minute.

Today, the Kompactor is available in three sizes, the K36, 36m³ 22ft tandem axle unit, the K40, 40m³ 24ft tri axle unit and the K50, 50m³ 28ft tri axle unit.

As standard, the Kompactor comes equipped with parabolic 127mm commercial running gear, 560/60-22.5 wheels, a swivel ring hitch, a hydraulically sprung drawbar, 420x180 brakes, air/hydraulic brakes, LED lights, strobes and reversing lights and the hydraulic tailboard.

The Kompactor is also available as a demountable machine, allowing the operator to share a tanker or trailer body to the same chassis.