COOPER Hamburg dual arm wet and dry wheel tracker

Main features

• Automatic and constant rut depth recording at 230 points across the sample allows for flexible analysis, future proofs against new changes in the standards, produces more accurate results across bigger data samples, provides the possibility to evaluate surface characteristics, i.e., roughness
• Scotch yoke mechanism for perfect sinusoidal motion throughout the stroke – with our WTIM-A further improved to an industry-leading RMSE of 0.039mm. Our machine’s performance has been independently verified in the NCHRP Report [1]
• Wheel load 700N/703N/705N as standard, adjustable from 520N to 1600N in 1N increments.
• Wheel speed is variable from 10 to 36 cycles per minute
• Three temperature probes as standard to ensure uniform temperature distribution across the sample and in the test chamber, temperature control accuracy of 0.1º C [2]
• Fully flexible test profile configuration and automatic test performance on one or two specimens.
• Test scheduling timer to optimise testing time
• UKAS calibration certificate issued when applicable
• Auto filling and levelling of the water tank, two automatic settings in compliance with EN and AASHTO standards
• Automatic and independently lifting electromechanical arms allow maximum access for mould insertion and removal for user comfort
• The new design of the dry hood allows quick and easy switching between wet and dry tests
• Universal mould clamping system, suitable for any compatible mould size required by standards
• Mould sizes available: 305*305mm, 260*320mm, 305*400mm, cores 200mm diameter, double cores 150mm diameter, with specimen height up to 100mm variable in 10mm increments
• No extra parts are required to change between different mould sizes
• Increased operator safety with three emergency stops connected to a fully integrated safety circuit.
• Quick-release panels for easy maintenance