Evolution ... versatile.
Aquajet’s Evolution eases demolition
01 September 2005
A Leading hydrodemolition equipment company Aquajet Systems of Sweden, has launched the Evolution Control System (ECS) for its Hydrodemolition robots giving a 20 per cent improved removal rate.
The new units feature the state-of-the-art on-board ECS and the new Smart Lance Control System for maximum removal capabilities.
Like other robots in the Aquajet range, the new HVD Evolution and HVE Evolution models are versatile machines that are ideal for working on bridges, tunnels, roads, walls, parking garages or overhead roofs. Working with a typically 1000 bar pressure and 250 l/min, the robot can handle removal depths down to approximately 1000 mm of concrete, says a spokesman.
Evolution Control System
The Aquajet Evolution robots are equipped with the new ECS – an on board computer system together with the Equal Distance System (EDS) – that provides a 15 to 20 per cent increase in removal capacity.
Built to operate in tough conditions, the system has been designed with the operator in mind and is easy to operate, he points out. The Evolution has a built-in operator’s manual in six languages and detailed operator support in a simple format directly on the display.
The operator is able to receive immediate feedback on current production data, such as the actual removed area.
The ECS continuously monitors all vital machine systems and functions and warns when parameter settings are outside the machine’s capabilities.
Smart Lance Control
The new Smart Lance Control (SLC) ensures more consistent quality of work, easily controlled by the operator. In the computerised SLC the operator feeds in only a few key parameters, such as work width, lance angle, lance speed, and depth. It also automatically adjusts a number of underlying parameters for optimum results, such as work pattern. The SLC also compensates for fluctuating operational parameters caused by ambient temperature changes.
The system also allows the possibility to programme different widths and depths in the same overpass, says the spokesman.
Equal Distance System
The new Aquajet Evolution robots are equipped with the patented EDS. Regardless of the set lance attach angle, the system controls and maintains the nozzles distance from the concrete surface. Maintaining an optimum distance, EDS ensures that no power is lost due to the nozzle being too far from the surface.
Controlled from an electronic display on the machine, the lance attack angle can be set from –45° to +450 allowing for efficient removal of concrete under rebars.
Reach
The new robot features an expanded reach, to provide a more efficient working area and more precise removal in corners and along edges etc. This feature minimises manual removal.
The versatility of the new robot is further enhanced by the increased possibility to adjust the powerhead sideways. The powerhead is adjustable sideways, totally between 1 to 4 m without moving the crawler-chassis. The side-shift of the power head can be increased to 1900 mm.
Total length of the unit varies between 2500 and 2750 mm. Minimum height is 1600 mm with a standard operating height of 6000 mm.
Stability
The variable-width chassis provides maximum stability during set up and operation. The low centre of gravity in the chassis further enhances the stability. In its narrow version, access to the tightest passages; doorways, alleys, footbridges, is achieved.
The track width varies from 1030 mm (narrow) to 1510 (wide) version.
The weight of the unit is 1900 kg for the HVE electrically driven version and 2000 kg for the HVD diesel driven version.
Engine
The robot is available with either diesel or electric drive. It is powered by a 12 kW diesel engine (HVD) or with an 11.5 kW electric motor (HVE). The diesel-driven version can be equipped with custom-fit engine brands.
Remote control
The robot features a new radio controlled remote system for increased safety and operator environment.
The operator can move around the machine during operation and set-up, whilst maintaining control of the machine. There is also no cable to run over. For environments where radio control is not feasible, remote hardwiring control is also included.
