Oil-free screw type vacuum pump

Ley­bold presents its inno­v­a­tive vac­u­um port­fo­lio at the inter­na­tion­al trade fair for the meat indus­try IFFA in Frank­furt am Main from 04 to 09 May 2019 in hall 11, booth A41. The new Novadry vac­u­um pump series will be the focus of the pre­sen­ta­tion. The com­plete­ly new­ly devel­oped, oil-free screw vac­u­um pump ensures sig­nif­i­cant­ly greater safe­ty and effi­cien­cy in food and pack­ag­ing processes.

Vacuum as a key technology

The demands placed by man­u­fac­tur­ers and con­sumers on the qual­i­ty, shelf life and resource effi­cien­cy of food and pack­ag­ing process­es are con­stant­ly increas­ing. This applies even more to such per­ish­able prod­ucts as for exam­ple meat or fish. Vac­u­um is con­sid­ered as an enabling tech­nol­o­gy, con­tribut­ing sig­nif­i­cant­ly to opti­miz­ing these process­es. There­fore, Ley­bold devel­oped the inno­v­a­tive Novadry, a new 100% oil-free, air-cooled pump, which will be launched at the IFFA.

No oil, less effort

“Many users in meat pro­cess­ing and pack­ag­ing can­not actu­al­ly tol­er­ate vac­u­um pumps emit­ting oil,” stress­es prod­uct man­ag­er Niels Gor­re­beeck. Novadry pre­vents such con­t­a­m­i­na­tions. That is why Ley­bold designed a 100% dry pump fol­low­ing hygien­ic cri­te­ria. This increas­es safe­ty in appli­ca­tions such as tum­bling, fill­ing, vac­u­um pack­ag­ing and ther­mo­form­ing. An addi­tion­al advan­tage of oil-free vac­u­um pumps is the low­er cost of own­er­ship, as less main­te­nance and spare part changes are required.

In addi­tion to the oil-free screw prin­ci­ple, Ley­bold has trans­ferred proven com­po­nents and prin­ci­ples from oth­er vac­u­um pump series to the Novadry, includ­ing the bear­ing struc­ture and the belt dri­ve, which syn­chro­nizes the rotors in the Novadry.

Broad range of applications

The Novadry also stands out due to its long uptime and robust­ness. Some com­peti­tor prod­ucts lose their end-pres­sure or reduce pump­ing-speed due to wear of the inner coat­ing, for exam­ple. The Novadry, how­ev­er, achieves its per­for­mance over the entire pres­sure range and life cycle. This makes it ide­al for sim­ple appli­ca­tions, which emit low amounts of humid­i­ty, such as pack­ag­ing of cold prod­ucts. More­over, the pump is also per­fect­ly suit­ed for more demand­ing process­es with large amounts of water vapour, for exam­ple when hot meals with tem­per­a­tures of up to 95°C have to be quick­ly cooled down by evap­o­ra­tive cool­ing. “In addi­tion to the air/steam mix­ture com­ing from the process, the Novadry screw vac­u­um pump can also han­dle the antic­i­pat­ed con­t­a­m­i­na­tion inside the gas flow very well. These are for exam­ple organ­ic acids, spices, vine­gar or oth­er residues,” sum­ma­rizes Pierre Lantheaume, Busi­ness Devel­op­ment Man­ag­er Food & Pack­ag­ing at Leybold.

Proven in real life

Novadry has suc­cess­ful­ly passed many qual­i­fy­ing field endurance tests in a wide range of food appli­ca­tions – tum­bling, tray seal­ing and ther­mo­form­ing. In all appli­ca­tions, it shows very good per­for­mance, the users reached fastest cycle times and low final pressure.

Forward-looking pump

Ley­bold have suc­ceed­ed in devel­op­ing a for­ward-look­ing prod­uct which has the poten­tial to set a new stan­dard for the food pro­cess­ing and pack­ag­ing mar­kets. This is due not only to the absence of oil, but also to the Novadry’s noise behav­iour, the robust design and the low life-time costs.

Ley­bold at the IFFA 2019: Hall 11, Stand A 41