Preston-based Nederman Ltd (
www.nederman.co.uk) has launched its new 418A/460A and 418E/460E vacuum blasters — mobile air-powered dustless abrasive-blasting systems that are said to offer high suction power and separation efficiency.
Key to the design of these new units is their mobility; being mounted on a steel frame with wheels, the 418/460-series units can be manoeuvred easily around the workshop or factory.
The unit’s grit separator features a silo with an internal sieve, filling valve and ‘vacuum producer’; there is also a pneumatic valve in the bottom of the silo that allows dust to be emptied into a plastic bag.
The efficiency of the system is highlighted by its ability to recirculate the shot media through the blasting/suction head more than three times; this reduces the cost of blasting media, as well as down-time caused by filling and cleaning operations.
Vacuum unit capacity is determined by the maximum blast pressure and the type of abrasive used, while the sieve ensures that larger extracted particles cannot enter the blast vessel; a compression pressure gauge informs the user of any change in operational pressure.
Weighing in at 193kg, 418-series units offer an 18-litre tank capacity, while 460-series units have a 60-litre tank capacity tank and weigh 242kg. The vacuum blasters can be supplied with a variety of hose lengths, nozzles and filters.