We measure where others are just guessing.

Precision at the highest level.

Brake Tester QB.4 | 2200mm | 3,7kW

700mm rollers | 3,7kW | 5,2km/h | 2,5t max. test load | motor brake | AWD detection | speed sensor | ASA v1.2 | galvanized | Premium-coated rollers | with Android App

Article number: 1 691 400 100

QB.4 - the new benchmark in brake testing
Real-time control via smartphone or tablet

  • Ready for mobile Android devices by default
  • No cabinets, PCs, or license costs required
  • Optional classic display by choice: analog, digital, or TV

No compromise on quality

  • Standard motor brake
  • Frame and base unit hot galvanized
  • Long-lasting premium-coated rollers for high grip and low tire consumption
  • Reinforced bearings and high-quality 3.7 kW motors

Next-level power box

  • All electronic components safely placed outside roller set
  • Flexible display options, no Windows PC needed
  • RJ45 Ethernet with ASA Livestream v1.2 interface as standard

Brake testing made easy

  • Automatic testing procedure
  • No need for remote control
  • Automatic detection for all-wheel drive
  • Program for electronic parking brakes
  • Optional upgrade with 4-point axle weight scales
  • Fits in all common foundations

Included as standard. Where others charge extra:

  • Motor brake: Increases motor lifespan, simplifies driving axle out of the brake tester
  • Galvanized critical components: Protects against corrosion, increases service life
  • All-wheel drive detection: Ideally equipped for all-wheel drive and electric vehicles
  • Premium-coated rollers: Maximum grip, minimum abrasion
  • App use: Replaces complete analog display and PC

Scope of delivery:

  • Brake tester with 700mm rollers
  • QB.4 control cabinet with ASA Livestream v1.2
  • Android app
Max. wheel diameter1000 mm
Max. rim diameter32 mm
Protection classIP 54
Electrical connection3 x 400 V | 50 - 60 Hz
Measuring systemDMS
Max. axle load testable2,5 t
Test speed5,2 km/h
Coefficient of friction dry/wet0,8 / 0,7
Roller length700 mm
Roller elevation25 mm
Motor power2 x 3,7 kW
Power cable length15 m
Automatic switch-off functionstandard
Corrosion preventingHot galvanized
Min. rim diameter10 mm
Roller diameter205 mm
Number of rollers4
Min. test width800 mm
Max. test width2200 mm
Packaging length2420 mm
Packaging width820 mm
Extension assistancestandard
Min. wheel diameter320 mm
Roller axle distance381 mm
Foot-operated power meteroptional
Max. drive-over load4 t
Height difference upper edge of roller to workshop floor-10 mm
ASA livestreamja standard
Weighing systemoptional
Automatic start-up and restartstandard
Start-up anti-blocking devicestandard
Analog Display with wall bracket | QB.41 691 401 100
Digital Display with wall bracket | QB.41 691 401 101
Wall bracket | VESA 400x400mm1 691 401 107
TV display kit | QB.41 691 403 100
Pedal force meter | QB.41 691 403 101
Installation frame for car brake tester BD 4xxx, 700 mm1 691 602 115
Edge protection for car brake tester BD 4xxx, 700 mm1 691 602 000
Drive-over plate swiveling | 700 mm1 691 601 011
Axle load scale 4 sensors1 691 601 606
Support strips for axle load scales | 2 pcs1 691 601 009
Tablet | Android | 10.1"1 693 770 644

Product information sheet