The Uniline Quantum lanes offer two ways of testing 4WD drive vehicles:
- applying a special option in the Quantum software (automatic driver detection and testing procedure)
- using a mobile set of rollers.

Mobile rollers ensure a safe use of roller brake testers to inspect each type of vehicles with many axle drive, including those without an inter axle differential.

A test of braking systems in 4WD vehicles is performed without need to turn the drives off. To this end one drives with the axle to be tested on the roller brake tester while the non-tested axle should be placed on the mobile roller set. Then the test is carried out like in the case of a one axle drive vehicle.

Technical data PW-Uni PW-3,5
Working width of plate 650 mm 510 mm
Working lenght of plate 510 mm 510 mm
Diameter od rollers 40 mm 40 mm
Max axle load 11,5 t 2 t
Weight 2 x 50 kg 2 x 33 kg