dynoKRAFT A380-4WD-ML

Single roller 4WD dynamometer

High-end, modular test bench with mechanical link system

Features highlight

  • 640mm [25″] rollers
  • 340km/h [210mph]
  • 2700HP wheel power
  • mechanical bevel-gear link

The dynoKRAFT A380-4WD-ML automotive chassis dynamometer is the absolute leader in the marked for high-end AWD test benches.
It supports longest wheelbase and widest track among all dynamometers currently found on the market.

It’s modular design enables upgrade from A380-2WD over to 4WD and mechanical link in 3 steps.

The mechanical link system was engineered using angular bevel-gear gearboxes and custom cardan shaft. Any axis can be manually disabled using hand-lever. No noisy belts, greasy chains!

Roller width of 2200mm allow to test even wide-body GT race cars without problems.
Wheelbase range: 2200-3300mm (true wheelbase – without need to use roller tangent)

With two 3300Nm (optional 3800Nm!) eddy current brakes the A380-4WD-ML automotive chassis dynamometer allows to test up to 2700HP (1350hp static wheel power per axis).
All retarders are constantly cooled by built-in fans.

The roller diameter of 640mm reduces tire wear drastically and help keeping the tire temperature under control during long test sessions.

The dynamometer comes equipped with pneumatically actuated wheel-bumper that supports the vehicle during setup.
An built-in LED underbody illumination provides clear view during vehicle strapping.

The dynoKRAFT A380-4WD-ML can be freely configured with extension modules (additional inputs, OBD Interface etc…) to match customer needs thanks to our upgradable design concept.

dynoKRAFT A380-4WD-ML
Technical specifications

Peak wheel torque standard retarder

2x 3300 Nm (2x 2432 ft lbf)

Peak wheel torque optonal retarder

2x 3800 Nm (2x 2800 ft lbf)

Peak absorbed wheel power

2x 1000 kW (2x 1340 HP)

Peak dynamic wheel power
2x ~1200 kW (2x ~1610 HP)
Max. tractive force standard / optional retarder
2x 10312 N / 2x 11875 N

Power / torque measurement accuracy

0,5 %

Max. vehicle driving speed

340 km/h (211 MPH)

Max. vehicle acceleration rate

3,5 m/s² (11,5 ft/s²)

Max. axle load

3000 kg (6613 lbs)

Track width (inside - outside)

1025mm - 2200mm (40,3" - 86,6")

Wheelbase (min - max)

2200mm - 3300mm (86,6" - 129,9")

Roller diameter

640mm (20,3")

Rotational inertia equivalent vehicle mass

692kg (1525 lbs)

Dimensions L x W x H (outside)

4775 x 2964 x 748mm (188 x 117 x 29")

Weight (total)

3680kg (7606 lbs)

Rotational mass weight

1200kg (2645 lbs)

Rollers balancing class


Mechanical link system type

HD bevel gearboxes, selectable

Warranty and Support

5 Years

Scope of delivery

  • dynoKRAFT A380-4WD-ML dynamometer, floor-top installation

  • mechanical link system, selectable

  • dynoKRAFT PC-Trolley with monitor holders

  • dynoKRAFT ADAQbase controller

  • dynoKRAFT ADAQexiom add-on module

  • dynoKRAFT ADAQexiom base plugin

  • dynoKRAFT ADAQremote

  • dynoKRAFT ADAQsoftware incl. free lifetime updates

  • OBDII adapter

  • Bluetooth USB adapter

  • online user manual

  • free phone support

  • free dynamometer installation service worldwide

ADAQ controller - Technical specifications

(base dynamometer control module)
2x RPM (hall-sensor or digital 5V)
2x Load Cell with built-in amplifier
3x Analog 0-5V DC, configurable
1x Thermocouple Type-K
1x Built-in weather station (ambient temperature, humidity, pressure)

2x Brake controll, configurable as PWM, RC-Pulse, Analog, Servo

1x USB-C

(I/O expansion module)

5x Analog 0-5V DC, configurable

1x PWM 5V DC - cooling fan VFD control signal (driving speed dependant 0-100% output)
1x PWM 5V DC - throttle servo control signal

4x Dry contact 24V 5A max - configurable controll logic depending on input parameters

(Eddy Current power supply)

- 30 Amp rating
- Calibrated linear current control
- high-speed SCR-based design
- high-speed discharge
- Bluetooth V4.0 (BLE) telemetry (status monitoring and settings, Win10 only)
- Over-current and over-temperature protection
- LED status indicators
- Housing with integrated heat sink, fan-less design
- built-in internal AC-input and DC-load filters, minimal noise generation
- Oversized components with respect to current and voltage ratings

(bluetooth remote controller)

 -12 Keys with assignable software functions
- built- in 1200mAh battery
- built-in battery charging circuit
- USB-B connection
- industrial USB-Bluetooth adapter included

(base dynamometer control software)

- supports up to two ADAQbase controllers
- supports up to four brakes
- reliable, high-speed load control
- automatic ambient conditions aquisition and correction factor calculations
- multiple correction factor norms (DIN, ISO, SAE, none)
- freely configurable engine power correction (rolling road dynamometers)
- linear and advanced non-linear PID brake controller
- open user interface allowing access to all functions and settings
- built-in plugin system allows integration of virtually any third-party hardware
- configurable print-out page
- automatic saving
- raw sensor-data logging

- fully featured data analisys with multi-graph and multi-channel capability
- analise data in Engine RPM, Time or any other fuction (i.e. Timing Advance and Lambda vs. Engine Torque)
- freely configurable graph area, print-out page, data tables
- data export .csv file

- inertia
- power sweep (using set acceleration rate)
- manual RPM (hold any RPM setpoint regardless of load)
- RPM curve (follow any RPM-profile curve, freely configurable profiles)
- load control mode (special mode for water brakes with fast TQ increase)
- brake sweep (non-PID based test mode)

ADAQexiom plugin
(additional features and functions for ADAQexiom module)

- configuration of name, unit, interpolation and offset for each analog input separatley
- manual or automatic relais operation based on logical parameters
- configuration of cooling fan automatic output control
- up to two ADAQexiom modules supported

- throttle servo output control (5V PWM signal, external additional Signalconverter may be requierd in some applications)