Features + advantages

  • Tested in climate zones with cold exposure classes A2 to C1
  • Proven, field-tested design and rugged steel structure using high-strength fine-grained steel with proof of sufficient notched impact strength in accordance with DIN EN ISO 148-1
  • Field-documented, extremely long mean time between failure intervals
  • Axle and suspension systems aligned with strategic focus
  • Convenient handling, designed to facilitate the mission
  • Automatic track adjustment from any position, additional steering and all hydraulic functions can be controlled wirelessly or via keypads
  • Rigid, hinged or compensating gooseneck, with fifth-wheel load switchover option if required
  • Reliable, electromagnetic shielding of electronic components in line with ECE R10, and optional also in accordance with military standards
  • Military-standard fordability corresponding to deployment scenario
  • Coating in line with military standards, single colour or camouflage
  • Solutions derived from standard commercial vehicles which, in the event of leasing, allow them to also be used in commercial applications subsequent to their primary military usage

Vehicle details and equipment

The ultimate in safety

Just like lifting points, tie-down lashing points and load securing points are configured based on the requirements profile. They then satisfy the rail impact test and meet the requirements for air, sea and rail loading. Depending on the dimensions, all standard container locks and load securing points can be integrated into the deck. We offer you the tailored load securing concepts, instructions and reports required for your individual transport scenarios.

Change driving level at the touch of a button

Up to 4 driving levels can be preset at the factory in line with your specifications and selected to suit your operational need. At the same time, the hydraulic system provides features including the activation of traction control, lift axles, ramp operation, stabiliser legs, manual oversteering and tyre pressure monitoring. These features add to the ease of logistics operations and systems safety.

Manual oversteering

Caught in a corner, operating in a tight spot? Or is the tractor unit struggling to generate the necessary steering response when reversing? In that case the co-driver can either use the radio remote control or cable remote control to hydraulically adjust the steering impulse whenever required. As a result, the trailer is able to achieve a minimal turning radius even in confined spaces – without any steering angle impulse from the tractor unit.

Tried-and-tested assistance systems

Crucial sensors and potential malfunctions can be read out quickly and conveniently via the radio remote control. Military-hardened sensor systems and innovative CAN bus technology allows for ease of troubleshooting and help reduce unproductive vehicle downtimes. In addition, systems such as ABS-EBS and RSS discretly support driving safety in the background and prevent critical driving situations that would put the system or payload at risk.

DOLL tronic unit on the side of a heavy-duty transport vehicle

Rigid, hinged or compensating gooseneck

Depending on the number of axles and particular requirements, off-road capability can be increased significantly thanks to hydraulic compensation through the first axles.

Optimal on-road capabilities

The small-wheeled 17.5" DOLL swing arm and the 17.5" DOLL panther® double wishbone single suspension axle cater for minimum loading heights and maximum rollover stability as well as significantly extended leeway when travelling under bridges. This complies with road regulations and helps to shorten transport routes and times.



Vehicle types and project examples

Semi trailers

Facts + components

  • For the transport of tracked vehicles and heavy wheeled vehicles
  • Optimum driving characteristics on roads: pneumatic suspension or hydraulic suspension
  • A choice of proven axle systems: DOLL vario® torsion beam axle, DOLL swing arm and DOLL panther® double wishbone axle
  • Field-tested hydraulic dual-circuit steering
  • Depending on the axle combination and application: rigid, hinged or compensating gooseneck
  • Variable length of the low-bed according to the transportation tasks
  • Optional: telescoping mechanism and extendable loading surface
  • A wide range of ramp options: either hydraulically or mechanically operated, both single or split ramps

Low-bed trailers

Facts + components

  • From 1 to 8 axles
  • Optimum driving characteristics on roads: hydraulic suspension
  • A choice of proven axle systems: 17.5" DOLL swing arm and DOLL panther® double wishbone single suspension axle
  • Extremely agile thanks to field-tested hydraulic dual-circuit steering
  • Retractable gooseneck for easy and safe loading and unloading
  • Alternatively: low-bed with hydraulic tilt mechanism and a wide range of ramp options consisting of hydraulic and mechanical single and split ramps
  • User-friendly, smooth telescoping mechanism
  • Room for huge excavator trough and storage space in the rear carriage
  • Depending on the application and configuration: rigid, hinged or compensating gooseneck

Vehicles in action

Axle technologies for semi trailers and low-bed trailers

DOLL panther®

The leading innovative axle technology with independent wheel suspension for a perfect performance on road and on site.

DOLL vario®

Stable, robust and incredibly strong. The DOLL vario® axle is one of the most durable in the world.

DOLL tera®

The most robust axle for use under the harshest off-road conditions and on extremely challenging terrain.

Pioneering steering technology

Hydraulic axle steering

Maximum manoeuvrability and outstanding handling for our low-bed trailers and semi trailers.

Flat-bed trailers

Facts + components

  • For transporting long material and bridge elements
  • Optimum driving characteristics on roads and routes to deployment sites: pneumatic suspension with lifting and lowering functions
  • Extremely agile thanks to field-tested turntable steering developed by DOLL
  • Proven axle system: DOLL vario® 22.5" torsion beam axle
  • Additional steering via cable remote control  or radio remote control
  • User-friendly, smooth telescoping mechanism
  • Self-sufficient energy supply for hydraulic power unit
  • Transport frame for bridge elements can be secured in container locks. Raising and lowering operations carried out via support elements and pneumatic suspension; no external aids required.
  • Platform gate structure optional

Bolster semi-trailers

Facts + components

  • For transporting round and long timber
  • Optimum driving characteristics on roads and surfaced forest routes: pneumatic suspension with lifting and lowering functions
  • Extremely agile thanks to field-tested turntable steering developed by DOLL
  • Proven axle system: DOLL vario® 22.5" torsion beam axle
  • Additional steering via cable remote control or radio remote control
  • User-friendly, smooth telescoping mechanism
  • Hydraulic shifting system for the rear bolsters when transporting short timber
  • Self-sufficient energy supply for hydraulic power unit

Axle technologies for semi trailers and low-bed trailers

DOLL vario®

Stable, robust and incredibly strong. The DOLL vario® axle is one of the most durable in the world.

Hydraulic turntable steering

The vehicle responds quickly and directly to the steering movements of the tractor unit. Two independent hydraulic circuits guarantee complete reliability under any situation.

Low-boy trailers

Facts + components

  • Up to 4 axles
  • DOLL Quattro hybrid steering, turntable combined with hydraulic positive steering
  • Convenient operation of hydraulic functions incl. additional steering via radio remote control
  • Length and width of loading platform can be adjusted depending on the application
  • Wheel recesses for extra high loads
  • Various driving levels can be programmed
  • Self-sufficient energy supply
  • A wide range of ramp options: hydraulic and mechanical single and double ramps
  • A wide variety of onboard diagnostic options
  • Optional packages for recovery operations with and without winch unit available

Self-steering jeep dolly trailer chassis for semi-trailer to transport pontoon bridges

Facts + components

  • 2 axles
  • Hydraulic positive steering incl. additional steering via cable remote control
  • Optimum driving characteristics on roads up to pontoon bridge deployment site: pneumatic suspension
  • Proven axle system: DOLL vario® 17.5" torsion beam axle
  • Extremely agile thanks to field-tested hydraulic dual-circuit steering
  • Self-sufficient energy supply
  • A wide variety of onboard diagnostic options

Axle technologies for self steering jeep dolly trailers and low-boy trailers

DOLL vario®

Stable, robust and incredibly strong. The DOLL vario® axle is one of the most durable in the world.