Vacuum pumps offer intelligent networking of pump and process

Atlas Copco says its new GHS 1402-2002 VSD+ series of vacuum pumps have a new design for better performance, optimal oil separation, a smaller footprint and a new controller which puts the customer in gear for Industry 4.0.

With the GHS 1402-2002 VSD+ speed-driven screw pumps cover three pumping speed classes. In rough vacuum applications, the oil-injected pumps deliver a continuously high pumping speed – from atmospheric pressure to ultimate pressure.

Commenting on the first of many new features, product manager Yuri Vanderveken explained: “The GHS 1402-2002 VSD+ features the new Atlas Copco oil-injected screw element. Its innovative compression optimisation valves allow for high pumping speeds at rough vacuum.” This, he says, makes them ideal for use in central vacuum systems, for vacuum cooling, for the production of food packaging and thermoformed plastic components as well as for vacuum chambers for altitude simulation.

“This is also a forward-looking pump. It is equipped with HEX@, Atlas Copco’s revolutionary new vacuum controller, making this pump ready for industry 4.0. With a new control system, users of the speed-driven pump type are also well equipped for the comprehensive digitalisation of industrial processes,” continued Vanderveken.

Compared to the previous models, the design of the three models GHS 1402, GHS 1602 and GHS 2002 VSD+ results in better vacuum performance, a 15 percent smaller footprint and longer maintenance intervals. “The footprint of the GHS 1402-2002 VSD+ is smaller than 2 square meters. The design is compact due to the vertical drive train design,” commented Vanderveken.

The new GHS VSD+ screw pump also contributes to saving energy costs. This is based, on the one hand, on the combination of the Neos inverter with a setpoint control. This means that the GHS 1402-2002 VSD+ deliver exactly the pumping speed required for the respective process. Moreover, an energy recovery system helps recover up to 80 percent of the power in the form of hot water. In addition to saving costs and water, this also results in lower CO2 emissions.

The increased efficiency is also due to the new permanent magnet motor. In its IE5 efficiency class, it has high efficiencies and produces an increase in efficiency of about two percent over the entire speed range. “This new technology ensures higher efficiency at all speeds when compared to classic motors. These new motors are oil-cooled, with oil lubricated bearings that provide optimal cooling at any speed,” elaborated Vanderveken.

Oil cooling maintains the optimal motor temperature at all speeds. The motor bearings are also lubricated by oil, which eliminates the need for regular relubrication. “We have dispensed with an additional fan, which reduces energy consumption and the noise level,” he continued. The motor is enclosed in a housing with IP66 protection. This makes it very resistant, especially in rough and dusty application environments.

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