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Jungheinrich Forklift Trucks

Diesel/LPG Forklift w/Hydrodynamic Drive Unit (2500 - 3500 kg)

DFG/TFG 425/430/435

Diesel and LPG Forklifts with Hydrodynamic
Drive Units (2500, 3000, 3500 kg)

Lift (standard mast)
from 2900 to 3300 mm
Capacity / load
from 2.50 to 3.50 t

  • Large capacity industrial engines which deliver high torque at low speeds
  • Cushion mounted drive unit minimises vibration to the operator
  • Hydrodynamic drive unit provides efficient acceleration and direction changes
  • Comfortable and safe operator’s cab featuring exemplary ergonomics

Jungheinrich hydrodynamic diesel and gas forklift trucks give an incredible handling capacity in a variety of applications. The hydrodynamic drive performs especially well in medium to long distance operations and also ensures smooth shock-free drive from rest.

Large capacity industrial engines generate high torque even at low speeds, giving the benefit of lower fuel consumption and noise. These robust engines are specially designed for use in forklift trucks, ensuring high reliability and a long service life even for tough applications.

All the engines feature low emissions and comply with the future EU Directives. The gas versions are fitted as standard with a catalytic converter. A closed-loop 3-way catalytic converter (TFG) and various particulate filter systems (DFG) are available as options.

The operator’s cab has an ergonomic layout and is designed around the operator. This ensures safety, protects health and enables the operator to concentrate fully on his work whilst being in a relaxed & stress free environment. Overall this ensures maximum productivity for arduous shifts.


Ergonomic operator position

Comfortable workstation helps to maximise productivity with exemplary ergonomics:

  • Comfortable and safe access and exit thanks to a large entry step easily visible from above.
  • Anti-vibration mounted drive unit reduces vibration and noise.
  • Comfort seat with 3-way adjustment.
  • Fully adjustable steering column.
  • Large, comfortable footwell with automotive style pedal layout.
  • Spacious, roomy cab.
  • Hydraulic lever ergonomically positioned next to the operator seat. Directional control easily falls to hand.
  • Excellent forward visibility through panoramic mast and carriage.
  • Clear visible analogue instrument panel with extensive warning and control lights.
  • The availability of cabs (optional) in various designs means that a comfortable working environment can be guaranteed in all weathers.

Strong motors

Large capacity industrial engines, specially designed for the requirements of forklift trucks provide power in every situation:

  • 3.3 l Diesel motor with 41.2 kW output and maximum torque of 41 kW at 2000 rpm. Clean emission and quiet running through indirect injection.
  • 2.5 l Otto motor with 36 kW output and maximum torque of 180 Nm at 1400 rpm.
  • Long service life due to robust construction and low engine speed.
  • 500 hour servicing interval.
  • Low soot emission (Diesel stacker). Various types of soot filter systems (optional).
  • 58 l Diesel tank integrated in chassis.
  • Downward direction of exhaust (upward direction optional).
  • Easy access for maintenance and service through one-piece motor cover with wide opening angle to the rear and removable floor plate.

Heavy-duty hydrodynamic transmission

The hydrodynamic drive with automatic power shift transmission provides, demand-based power transfer.

  • Excellent efficiency for both medium and high speeds.
  • Precise and smooth power transfer.
  • An inching / brake pedal provides precise driving even when lifting to full lift capacity. The additional brake pedal allows smooth starting on ramps and gradients.

Protected electric installation

  • 12 Volt battery with 72 Ah.
  • 50 A 3-phase AC dynamo.
  • Otto motor with maintenance-free, noncontacting transistor ignition. The complete electrics are protected against water and dust according to IP 54 and accessibly mounted on the overhead load guard console.


Controlled hydrostatic steering for effortless, shock-free and precise steering.

  • Maximum steering comfort and a high level of safety. Only 4 turns of the steering wheel from lock to lock.
  • Steering axle with integrated steering cylinder is mounted high in the frame. This system provides maximum dynamic stability.


Two independent brake systems act on the front wheels.

  • Foot brake: Hydraulically supported drum brake with asbestos-free linings and brake fluid warning light.
  • Parking brake: Hand-operated cable-pull brake with operation warning light.


The high-performance filter system ensures cleaner hydraulic oil and a long service life for all components:

  • Suction filter and return line filter.
  • Hydraulic tank (55 l) integrated in frame.
  • Ventilation of the hydraulic tank via filters.
  • Pressure relief valves protect against excess pressure and overloading.

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