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Hofmann TRACTEST Sideslip Testers Optimize Vehicle Safety Performance

2026-11-01

Sideslip testing is a routine but consequential step in vehicle inspection, measuring how far a wheel drifts laterally as it rolls and flagging suspension or alignment faults before they turn into uneven tire wear or handling problems. Hofmann's TRACTEST series is built to bring that measurement into regular workshop workflows, with two models covering passenger cars and heavy commercial vehicles.

Why sideslip detection matters

In a typical test, the vehicle is driven slowly across a set of moving plates that record lateral displacement as each wheel passes over them. The resulting figure shows whether the alignment angles, particularly camber and toe, are working together as the manufacturer intended.

Because the reading is taken while the vehicle is rolling, it reflects road behavior more closely than static geometry measurements alone. Sideslip that exceeds the specified tolerance generally points to worn suspension parts, bent steering components or misalignment, giving technicians a documented basis for recommending further inspection or adjustment.

The TRACTEST equipment line

Hofmann, a manufacturer of wheel service and workshop equipment, supplies the TRACTEST series to repair shops, tire dealers and body repair centers. The equipment uses an automated test sequence intended to shorten vehicle turnaround time while producing repeatable data.

Two models are listed, differentiated primarily by the class of vehicle they are designed to handle.

Model	Vehicle application
TRACTEST 2500 E	Passenger cars (sedans)
TRACTEST 4000 E	Commercial vehicles (trucks)

Selecting the appropriate model

Model selection generally follows the workshop's core business. The TRACTEST 2500 E is configured for passenger cars and covers the routine checks required in most sedan and light-vehicle service bays.

The TRACTEST 4000 E is engineered for trucks and other large commercial vehicles, with greater load capacity and a plate design suited to heavier axle weights. For mixed-fleet operations, the deciding factor is the heaviest vehicle the bay is expected to test on a regular basis.

Calibration and upkeep

Test plates should be kept clear of debris, oil and grit, since contamination can reduce sensor sensitivity and distort results. Routine cleaning is normally part of daily workshop practice.

Manufacturer guidance also calls for periodic calibration so that readings remain within industry tolerances. Recording those calibration intervals helps maintain consistency across repeat visits and supports the credibility of the inspection report.

Frequently Asked Questions

What role does a sideslip tester play in wheel alignment?

It measures the lateral displacement of the tires while the vehicle is rolling. That figure serves as an important reference for whether camber and toe values are properly matched, and it indicates the risk of the vehicle pulling to one side or wearing its tires unevenly.

How should a workshop choose between the TRACTEST models?

The choice depends on the vehicles the shop services. The TRACTEST 2500 E is the standard option for passenger cars and light vehicles, while the TRACTEST 4000 E offers higher load capacity for heavy truck repair, supporting accurate data and equipment durability.

What maintenance does a sideslip tester require?

The test plate surface should be cleaned regularly to prevent debris or oil from affecting sensor sensitivity. Periodic calibration in line with the manufacturer's manual is also recommended to keep results within industry standards.

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