Product portfolio for the metalworking industry

The need for ener­gy-effi­cient, sus­tain­able process­es is increas­ing espe­cial­ly with regard to the fric­tions caused by high ener­gy prices, increas­ing glob­al warm­ing and scarce resources. These require­ments also have a direct impact on vac­u­um sys­tems which are an ele­men­tary com­po­nent in heat treat­ment plants and met­al­lur­gi­cal process­es. Ley­bold offers a wide range of high­ly inno­v­a­tive, already proven vac­u­um solu­tions espe­cial­ly for this require­ment profile.

State-of-the-art mechan­i­cal vac­u­um pump sys­tems are pow­er­ful tools for effi­cient oper­a­tion. They have a robust design that enables the pumps to with­stand harsh pro­duc­tion envi­ron­ments. No mat­ter what type of vac­u­um sys­tems are oper­at­ed: Inno­v­a­tive vac­u­um solu­tions reduce oper­at­ing costs and CO2 emis­sions while pro­vid­ing com­plete process control.

Pump sys­tems con­sist­ing of dry-com­press­ing screw vac­u­um pumps of the Drycav type com­bined with Ruvac WH Roots pumps have proven them­selves in use on sec­ondary met­al­lur­gi­cal VD, VOD or RH degassers. By using these stan­dard pumps, even the high­est demands on pump­ing speed can be met with the great­est reli­a­bil­i­ty at com­pet­i­tive prices. In order to achieve high vac­u­um in VIM or VAR instal­la­tions, Ley­bold offers the most mod­ern oil boost­er pumps avail­able on the mar­ket, which in com­bi­na­tion with dry com­press­ing Drycav screw pumps and Ruvac Roots pumps ensure max­i­mum sys­tem avail­abil­i­ty at low­est oper­at­ing costs.

The com­pa­ny has an even larg­er prod­uct port­fo­lio for use in vac­u­um heat treat­ment fur­naces: Oil-sealed Sogevac rotary vane pumps have proven them­selves in clean process­es such as hard­en­ing or tem­per­ing. For more demand­ing process­es such as sol­der­ing, sin­ter­ing or car­bur­iz­ing, dry-com­press­ing screw pumps are also avail­able. Depend­ing on size and process, pumps of the Drycav , Screw­line or Var­o­dry series can be used. From sin­gle pumps to com­plex steel degassing sys­tems: As the com­po­nents for vac­u­um sys­tems are man­u­fac­tured in large quan­ti­ties, the deliv­ery time is short, they are cost effec­tive and pro­vide proven high qual­i­ty, thus con­tribut­ing to the suc­cess of the customer.

Emission-free rotary vane pump

Nowa­days, mod­ern vac­u­um tech­nol­o­gy must con­vince its users with emis­sion-free, smooth run­ning and sus­tain­abil­i­ty. With these require­ments in mind, Ley­bold has devel­oped the com­pact Sogevac Neo D, an inno­v­a­tive 2‑stage vac­u­um pump with inte­grat­ed oil mist sep­a­ra­tor on the exhaust side. The work­ing envi­ron­ment remains clean and free of oil mist dur­ing pump­ing. Con­tin­u­ous oper­a­tion is pos­si­ble with­out an exter­nal fil­ter at any inlet pressure.

The robust Sogevac Neo D is opti­mized for appli­ca­tions requir­ing a pump­ing speed in the range of 1x10‑2 to 1mbar; per­fect for small heat treat­ment fur­naces or as a hold­ing pump for dif­fu­sion pumps. The Sogevac Neo D offers a sta­ble process vac­u­um but is less expen­sive than con­ven­tion­al alter­na­tives and saves up to ten per­cent ener­gy due to its sig­nif­i­cant­ly small­er rotat­ing mass. Addi­tion­al ener­gy sav­ings can be achieved by oper­at­ing the pump by means of speed con­trol with a fre­quen­cy converter.

Dry pumps

The dry-com­press­ing screw vac­u­um pumps are designed for mod­ern, intel­li­gent pro­duc­tion. They offer max­i­mum ener­gy effi­cien­cy, dura­bil­i­ty and future-proof net­work inte­gra­tion. Due to the opti­mized rotor geom­e­try and the inno­v­a­tive motor design with effi­cien­cy class IE3, these pump types min­i­mize pow­er con­sump­tion and CO2 emis­sions. The bot­tom line is that Dry­vac pumps are cheap­er and more envi­ron­men­tal­ly friend­ly than com­pa­ra­ble models.

The new com­pact Dry­vac mod­els DV 200 & DV 300 are designed for harsh indus­tri­al appli­ca­tions, just as the larg­er pumps of the same pump series. They offer a long ser­vice life, even under demand­ing con­di­tions with high humid­i­ty, dust or oth­er process par­ti­cles. Dry­vac pumps also require min­i­mal maintenance.

100% oil-free, dry-compressing screw pump

The 100% oil-free, dry-com­press­ing and air-cooled Var­o­dry screw pump guar­an­tees the required oper­at­ing pres­sure and a short cycle time, espe­cial­ly in demand­ing process­es. Thanks to its com­pact design and reduc­tion to the essen­tials, the vac­u­um pump can be eas­i­ly inte­grat­ed into new or exist­ing sys­tems. Due to the inte­grat­ed silencer, it is qui­et and has a pleas­ant oper­a­tional noise.

The air-cooled Var­o­dry is absolute­ly dry and clean. This pre­vents par­ti­cle or oil migra­tions into the vac­u­um cham­ber or the envi­ron­ment. A fur­ther process advan­tage is their resilience and effi­cien­cy. It can be oper­at­ed con­tin­u­ous­ly at any inlet pres­sure and is com­plete­ly resis­tant to reg­u­lar shock ven­ti­la­tion. There­fore, any num­ber of cycles can be run with­out over­load­ing. Var­o­dry pumps ensures unin­ter­rupt­ed oper­a­tion with­out sys­tem down­times. This qual­i­fies it as the ide­al vac­u­um pump for heat treat­ment appli­ca­tions and met­al­lur­gi­cal processes.

Dry screw pump for extremely dirty applications

In demand­ing appli­ca­tions such as sin­ter­ing or car­bur­iz­ing, dry-com­press­ing screw pumps are pre­ferred as back­ing pumps. They are more effi­cient and reli­able than oil-sealed pumps. Espe­cial­ly the Screw­line pumps have proven them­selves in extreme­ly dirty appli­ca­tions. Their main advan­tage: The pump cham­ber of this pump fam­i­ly can eas­i­ly be cleaned by the cus­tomer on site, for exam­ple dur­ing process paus­es by means of flushing.

Low power consumption, high pumping speed

With the air-cooled, oil-free Scrol­l­vac plus, Ley­bold offers an uncom­pli­cat­ed, reli­able back­ing pump. Its prop­er­ties pre­des­tine it for a wide range of demand­ing appli­ca­tions, such as lab­o­ra­to­ry vac­u­um fur­naces. This is also due to the low pow­er con­sump­tion of the back­ing pump com­bined with high pump­ing speed. In addi­tion, the Scrol­l­vac plus, with its light­weight, com­pact design, takes up very lit­tle space. This enables inte­gra­tion into new and exist­ing vac­u­um systems.

Its func­tion­al and design fea­tures sim­pli­fy dai­ly han­dling of the back­ing pump. For exam­ple, the her­met­ic seal­ing of the rotat­ing parts of the pump cham­ber reduces the risk of con­t­a­m­i­na­tion. By dis­pens­ing with shaft seals that are sus­cep­ti­ble to wear, devel­op­ers have achieved high­er inte­gral tightness.

Oil-jet steam pumps and systems for high-vacuum processes

Oil steam jet pumps and sys­tems are char­ac­ter­ized by the high­est pump­ing speeds in met­al­lur­gi­cal indus­tri­al high-vac­u­um process­es. These pumps are robust con­tin­u­ous-run­ning pumps and have proven them­selves in steel pro­duc­tion process­es such as VIM and VAR, or in high-vac­u­um indus­tri­al fur­naces. The pump­ing effect of these ejec­tor pumps is cre­at­ed through the dif­fu­sion of the gas­es that are pumped into the vapor jet. Com­pared to oth­er high vac­u­um pumps, the pump­ing speed com­pared to the sur­face area is very high.