Automated transverse vibration tester for characterising the loosening behaviour of bolted joints — available in fixed and variable displacement configurations from M6 to M24.
TRAVIS Series
The TRAVIS is a computerised Junker-method test system that subjects bolted connections to controlled transverse vibrations, revealing how clamp load degrades over cycles. It produces repeatable loosening characteristic data per DIN 25201-4 and DIN 65151.
Two configurations cover M6–M16 at up to 120 kN (Fixed Displacement) and M6–M24 at up to 200 kN with adjustable stroke of 0.5–3 mm (Variable Displacement) — making a single machine suitable for automotive fasteners through to heavy structural bolts.
Configurations
Standard Equipment
Clamping force is measured and displayed continuously throughout the test — no post-processing required.
Dedicated data acquisition hardware captures bolt load signals with high accuracy and minimal noise.
Loosening behaviour plotted in real time on screen as clamp load against vibration cycle count.
Pass/fail reports generated automatically at test completion and output to printer or PDF.
Precision mechanical drive delivers consistent displacement amplitude cycle after cycle, per DIN requirements.
Variable model allows stroke to be set anywhere from 0.5 to 3 mm to match specific DIN test conditions.
Compliance
Specifies requirements for bolted connections subject to transverse dynamic loads in rail vehicle applications, including the test methodology for vibration-induced loosening.
Defines the transverse vibration test method (Junker test) for evaluating the self-loosening resistance of fasteners under dynamic loading across aerospace and automotive assemblies.
After Sales
On-site and in-house calibration of testing machines and sensors
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Application engineering, test method development, and lab planning
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Safe disassembly, transport, and re-commissioning of testing machines
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Modernise legacy or imported test rigs with new controls and sensors
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Annual maintenance contracts (AMC) for all testing machines
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Tell us your bolt sizes and required test standards — we'll specify the right TRAVIS configuration.
Trade Shows & Exhibitions
Upcoming Events 2026Tire Technology Expo
Deutsche Messe, Hannover, Germany
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TyreXpo Asia Bangkok
BITEC, Bangkok, Thailand
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Automotive Engineering Exposition 2026 Yokohama
PACIFICO Yokohama, Japan
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Automechanika Dubai
Dubai Exhibition Centre, Expo City Dubai
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