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BAUER LONG SHAFT PUMP WITH ELECTRIC DRIVE

MAGNUM LEE/LEC

The BAUER long-shaft pumps Magnum LEE and LEC, con­sist­ing of pump, drive shaft and elec­tric motor, impress with their excel­lent energy effi­cien­cy and robust­ness. A dis­tinc­tive feature is that the actual hydraulic com­po­nents are always immersed in the medium, the elec­tron­ic motor, however, is outside the medium.  Thus, you never need to worry about damage caused by defec­tive seals.

The two ver­sions, LEE and LEC, mainly differ in the cutting device and are suit­able for dif­fer­ent liquid manure consistencies:

The LEC (Long Shaft Elec­tri­cal Cutting Pump) is equipped with an adjustable cutting mech­a­nism and easily handles cattle slurry with a high straw content and feed residues.

The LEE (Long Shaft Elec­tri­cal Efflu­ent Pump) is built without a cutting mech­a­nism and is suit­able for all types of liquid manure with a low straw content and fibrous materials.

Bauer Magnum Langwellenpumpe LEC
robust and durable

A UNIQUE CONCEPT

The main advan­tage of this type of pump is based on the phys­i­cal fact that the com­po­nents which are not immersed in the medium do not require sealing and cannot be damaged due to defec­tive seals. In order to benefit from this advan­tage it is nec­es­sary to install a drive shaft between motor and pump, which has dif­fer­ent length depend­ing on the depth of the pit. This basic concept and high quality mate­r­i­al com­bined with hydrauli­cal­ly and strength-opti­mized geom­e­try finally lead to a durable, robust and energy effi­cient thick matter pump:

Langwellenpumpe_LEC_0164_logo
For the tough­est applications

Char­ac­ter­is­tics

The BAUER-long-shaft pump is avail­able in four per­for­mance classes in 11 kW; 15 kW; 18,5 kW and 22 kW. Its out­stand­ing char­ac­ter­is­tics qualify it for the tough­est applications:

  • Hydrauli­cal­ly opti­mized thick matter impeller for high efficiency
  • Top intake pre­vent­ing foreign objects being sucked into the pump
  • 6 inch pres­sure pipe for reduced fric­tion losses
  • Three-way valve for switch­ing between stir­ring and extract­ing while oper­at­ing the pump
  • Highly flex­i­ble nozzle with a large swivel range
  • Robust bear­ings for par­tic­u­lar­ly smooth running with high level of protection
  • Highly effi­cient, wear-resis­tant cutting device (LEC)
Langwellenpumpe LEE/LEC Hubgestell
Sta­tion­ary or mobile

Pos­si­ble applications

The BAUER long shaft pump LEE/LEC can be placed in the pit for sta­tion­ary usage with the aid of wall fix­tures or fix­tures on the edge of the pit. If the pump is used in various pits, the long shaft pump is avail­able assem­bled on a robust lifting frame.

The LEE/LEC pump is often used for classic appli­ca­tions in the agri­cul­tur­al sector:

  • for stir­ring the slurry before separation
  • for filling slurry tankers
  • for flush­ing lines
  • for pumping from one channel to another

The unbeat­able advan­tages of BAUER long shaft pumps

Pump body
Impeller
Cutting device
Top feeder
Pres­sure pipeline on 6inch 
Agi­ta­tor nozzle
Three way valve
Drive-shaft
Pump body
Bauer Magnum Langwellenpumpe LEC

Pump body with triple sealing

The main com­po­nent of the long shaft pump is the pump body with the incred­i­bly robust bearing running in oil. The three-part seal pro­vides a high level of safety and pre­vents oil from escap­ing and slurry from pen­e­trat­ing the bearing housing.

This gives the BAUER LEE/LEC pump the ideal tools for the tough­est oper­at­ing conditions.

Impeller
Bauer Magnum Langwellenpumpe LEC

Pow­er­ful thick matter impeller 

The hydraulic com­po­nents impeller and spiral housing are arranged direct­ly after the bearing housing. By using modern methods of cal­cu­la­tion and sim­u­la­tion pro­grammes as well as hydraulic mea­sure­ments and opti­miza­tions on our pump test bench we were able to develop the ideal hydraulic geom­e­try. The result is con­vinc­ing: The hydraulic effi­cien­cy of the BAUER LEE/LEC long shaft pump is con­sid­ered to be one of the best on the market.

Cutting device
Bauer Magnum Langwellenpumpe LEC

Highly effi­cient cutting device

In order to handle slurry with a high pro­por­tion of straw and feed residues you need pumps with an effi­cient, robust cutting device. No one can and wants to afford down­town times and costs.

By doing inten­sive thick matter endurance tests under extreme con­di­tions the cutting effi­cien­cy has been opti­mized and the wear resis­tance increased enor­mous­ly by using hard­ened mate­r­i­al in order to reach a high lifes­pan even with highly abra­sive mediums. To guar­an­tee this, spher­oidal graphite iron is used, which is given special prop­er­ties through a special heat treat­ment in order to with­stand the tough­est oper­at­ing con­di­tions over a long period of time.

Top feeder
Bauer Magnum Langwellenpumpe LEC

Top feeder pre­vents the intake of foreign bodies 

Top feeder means that the pumped liquid does not flow to the impeller from below, as it does with sub­mersible pumps, but from above (on the drive side). The advan­tage of this design is that heavy objects like screw­drivers, stones or similar objects cannot get into the cutting device and cause damage.

Pres­sure pipeline on 6inch 
Bauer Magnum Langwellenpumpe LEC

Pres­sure pipeline on 6inch version for less fric­tion loss 

The BAUER-long shaft pump is equipped with a 6 inch pres­sure pipeline in order to reduce the fric­tion losses in the pipe. An increase of the pres­sure pipe from 5 inch to 6 inch results in up to 20% savings regard­ing fric­tion loss with 100 m³/h and 12 % dry matter content in cattle slurry.

Agi­ta­tor nozzle
Bauer Magnum Langwellenpumpe LEC

Agi­ta­tor nozzle with large swivel range:

Espe­cial­ly for the use in round and in rec­tan­gu­lar pits an agi­ta­tor nozzle was designed, which has a hor­i­zon­tal swiv­el­ling range from up to 180°. More­over, the nozzle can be swiv­elled 15° upwards and down­wards. This leads to a bigger mixing area and the pit can be mixed thor­ough­ly in a very short time.

Three way valve
Bauer Magnum Langwellenpumpe LEC

Three way valve for switch­ing between mixing and con­vey­ing under load

With the help of the BAUER-three way valve it is pos­si­ble to switch easily between mixing and pumping. This way the pump does not have to be switched off and remains in con­tin­u­ous oper­a­tion when switch­ing between mixing and filling the tanker. By using the BAUER-three way valve the switch-on fre­quen­cy is being reduced. This has a pos­i­tive effect on the lifes­pan of the elec­tric motor and the pump.

Drive-shaft
Langwellenpumpe LEE/LEC

Robust drive-shaft with mul­ti­ple bear­ings for quiet operation 

The drive shaft of the BAUER-long-shaft pump was designed for extreme oper­at­ing con­di­tions and has proven its strength already in use with the BAUER-slurry mixers Tur­bomix MTXH. This drive train has a drive shaft with spe­cial­ly devel­oped mul­ti­ple bear­ings and sits in a massive shaped tube 120x120x4. This leads to an energy effi­cient and quiet oper­a­tion. The Bauer-long-shaft pump is avail­able for pits with depth of 2 to 6 meters in  0,5‑meter gradations.

Tech­ni­cal spec­i­fi­ca­tions MAGNUM LEE/LEC

Magnum LEE/LEC max. oper­a­tional per­for­mance* [kW] Oper­at­ing rota­tions *[min‑1] Extrac­tion flow* [m3/h] Extrac­tion flow* [l/min] Extrac­tion height* [m]
11,0 9,0 — 11,0 1.475 40 — 300 667 — 5.000 15,0 — 4,0
15,0 11,0 — 15,0 1.475 55 — 350 917 — 5.833 18,0 — 5,0
18,5 12,0 — 18,5 1.475 70 — 370 1.167 — 6.167 20,0 — 7,0
22,0 13,0 — 22,0 1.475 80 — 400 1.333 — 6.667 22,0 — 7,0
* All values apply for water

Choices MAGNUM LEE/LEC


Magnum LEE/LEC
Model
Pit depth includ­ing. cover (GT) [m]
max. fluid level height (FS) [m]
2,0
2,3
2,0
2,5
2,8
2,5
3,0
3,3
3,0
3,5
3,8
3,5
4,0
4,3
4,0
4,5
4,8
4,5
5,0
5,3
5,0
5,5
5,8
5,5
6,0
6,3
6,0
Rührdüse­nan­zahl 0 Gruben­decke — Motor­flan­sch (GM) m ca. 0,99 0,84 0,99 0,84
Gruben­decke — Druck­an­schluss Bogen (GDB) m ca. 0,37 0,37 0,37 0,37
Gruben­decke — Druck­an­schluss gerade (GDG) m ca. 0,52 0,52 0,52 0,52
Rührdüse­nan­zahl 1* Gruben­decke — Motor­flan­sch (GM) m ca. 0,99 0,84 0,99 0,84
Gruben­decke — Druck­an­schluss Bogen (GDB) m ca. 0,48 0,48 0,48 0,48
Gruben­decke — Druck­an­schluss gerade (GDG) m ca. 0,63 0,63 0,63 0,63
Rührdüse­nan­zahl 2** Gruben­decke — Motor­flan­sch (GM) m ca. Nicht erhältlich Nicht erhältlich Nicht erhältlich Nicht erhältlich
Gruben­decke — Druck­an­schluss Bogen (GDB) m ca. Nicht erhältlich Nicht erhältlich Nicht erhältlich Nicht erhältlich
Gruben­decke — Druck­an­schluss gerade (GDG) m ca. Nicht erhältlich Nicht erhältlich Nicht erhältlich Nicht erhältlich
* Nozzle approx. in the middle of the max. fluid level height; ** Top nozzle approx. 0.69m beneath the max. fluid level height, the lower nozzle approx. 1.40m above ground level
Ques­tions about the Magnum LEE or LEC?

CONTACT

Contact

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    Hojas Hans-Peter

    Hans-Peter Hojas

    Product Manager — Slurry Technology