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REFORM PrimAlpin

Maximum loading volume, optimum forage quality.

The REFORM PrimAlpin is the latest generation of the built-on self-loading trailer. Its core is a conveyor unit, which is driven by a gear unit. Milled cam tracks and optimal mounting of the conveyor arms deliver very smooth operation, even in extreme conditions. A 5-row pick-up with a total width of 1,900 mm provides wide and gentle forage intake and contributes significantly to the quality of the forage. The conveyor unit can be equipped with up to 19 blades. The resulting theoretical cutting length of 82.5 mm makes it the leader among self-loading trailers. This allows forage for silage to be cut very short and compacted even better. With a total width of 2.47 m, the PrimAlpin has a volume of 24 m³, the mule with short wheelbase has a volume of 22 m³.


The golden 8 of PrimAlpin

Large volume

The large loading volume of 22 or 24m3 enables easy cultivation of exposed areas.

Short cut

82.5 mm theoretical cutting length is ideal for silage operations.


Direct drive via a lateral input gearbox. The conveyor unit is equipped with forged conveyor arms.

Smooth running

A milled cam track on the conveyor unit and plastic rails on the scraper floor ensure smooth running.


Central lubrication bar on the conveyor unit and central chain lubrication are fitted as standard. The entire conveyor unit can also be easily removed or swapped.


Suitable for 4 wheel steering, hydraulic hay top on request, scraper floor speed continuously adjustable forwards and backwards.

Knife storage

As optional equipment, we offer a knife rack in which up to 19 - both short and long - knives can be safely transported. Insertion and removal is very easy.


Hydraulic tailgate

Optimum pick-up oscillation


Optimum pick-up oscillation ensures excellent ground adjustment and optimum loading results. The hydraulic tailgate comes with a new concept, where the cross tube is also raised, delivering the very best unloading results.


Technical data

Volume 22 m3 (12.5 m3 according to DIN11741) with short wheelbase
24 m3 (13.9 m3 according to DIN11741) with long wheelbase 
Weight 1580 kg (22 m3 version)
1630 kg (24 m3 version)
Conveyor unit
  • REFORM quick-release system
  • Unit drive via angular gear
  • Cardan shaft with integrated overload protection
  • Lateral main gearbox (gear drive)
  • 6 split forged conveyor arms
  • Milled cam track
  • up to 19 blade interfaces
  • Theoretical cutting length 82.5 mm
  • Central lubrication point for conveyor arms
  • Conveyor unit easy to dismantle


Controlled pick-up with 5 rows of tines, central lubrication points for drive chain; total width 1,900 mm
Tailgate Hydraulic tailgate in a new design: Opening the tailgate also raises the cross tube
Accessories Working lights, blade storage, hydraulic hay top, 3rd sensing roller for pick-up, Mudguards, stanchions, pick-up backstop