In 1978 SPECO® started manufacturing PA-type Archimedean Water Screw Pumps. By the mid 1980s the Company had gained a leading position among European manufacturers due to the acquired know-how and expertise in production technology.
Only logistic problems could stop SPECO® topping their triple pitch 3.5 metre diameter, 23 metre long, and more than 30 ton weighing monster powered by a 500 kW drive supplied in 1993 to a municipal wastewater treatment plant in Rome. The 1990s brought major changes to the wastewater industry.
The dramatically decreasing demand for large Archimedean Water Screw Pumps in the industrialised countries made SPECO® now focus on similar technologies, such as screening and compacting. However, in recent years the demand for Water Screw Pumps, which are now supplied by WAMGROUP associates RONCUZZI®, has increased again.
Archimedean Water Screw Pumps are a special type of volumetric pump, able to satisfy users¿ requirements as regards favourable investment and running costs, flexibility and reliability. In these machines, in fact, the flow rate varies automatically depending on how much the screw is submersed.
The flow rate can be modified by adjusting the speed without moving its yield too far from the maximum value.
PA Archimedean Screw Pumps are used in wastewater treatment, in drainage and irrigation applications, in the food packaging industry, and generally whenever water (even if containing suspended solids) has to be lifted.
Performance & Technical Features:
Outside diameters up to 4 metres (13 ft)
Flow rates up to 6,000 litres per second (12,700 cfm) = 21,600 m³/h
Internal pipe lengths up to 28 metres (31 yds)
Drive power installed up to 500 kW (680 HP) and more
WAM Australia | Bulk Solids, Powders, Liquids Handling & Processing
WAM’s product range includes screw conveyors, feeders, dust collectors, valves, valve actuators, solid discharging equipment, bag emptying equipment, FIBC (Big Bag) filling and emptying equipment, feeding and metering equipment, level and pressure monitoring and safety components, silo safety components, pneumatic conveying system components, rotary feeders (rotary valves), mixers, blenders conditioners, granulators, flexible screw conveyors chain conveyors, bucket elevators, ATEX compliant products, solids – liquid separation equipment, vibrators and flow aids.
The Italian WAMGROUP, a world-wide leader in developing and manufacturing equipment and plant components for bulk solids handling and processing, has been represented in Australia by its own subsidiary since 1997. WAM Australia is responsible for the distribution of the WAMGROUP product range in Australia, New Zealand, Papua New Guinea and parts of Micronesia. In May 1999, formal agency agreements were put in place for New South Wales, Western Australia and Queensland. Official resellers were also established in New Zealand and the Northern Territory. The company is situated in Kilsyth, in the outskirts of Melbourne, and its premises include an extensive warehouse and after-sales service facility.