The SEM 922 grader is aimed at sales into the Chinese market and for use by contractors carrying out large earthworks projects. Equipped with all-wheel-drive, the SEM 922 is said to be able to achieve high tractive effort in poor underfoot conditions or on wet terrain. It also has a steering compensation system that provides more control when turning under full power, minimising tyre scrubbing at the front axle and also reducing damage to any freshly graded surface. Dual displacement motors are said to maxi
Caterpillar is offering new machine control packages for use with dozers
Caterpillar is widening its range of solutions for dozers with the introduction of the GRADE with 3D system for its D3K2, D4K2 and D5K2 models.
This package is an automated grade control system using GNSS technology to position the machine's blade, without operator input, from first rough cut to finish grade. In addition, GRADE with 3D incorporates the Cat AccuGrade Ready Option. This system allows the use of universal-total-stati
Two major manufacturers, Caterpillar and Wirtgen, are introducing new milling machines. Both firms say that these new, high-production units will offer increased output compared with earlier generation equipment.
From Caterpillar come the new PM820, PM822 and PM825 machines, which are half-lane milling machines able to handle full-depth removal of asphalt and concrete pavements in a single pass. The firm claims that these units are highly productive and highly manoeuvrable. In operation the machines weig
