Bucher home

Internal Gear Pumps QXEH – up to 280 bar with One Gear Stage

Description

The QXEH series consists of single-stage pumps for both constant and variable speeds. Thanks to the use of high-precision gear parts with a pinion shaft (pinion and shaft as one component), extremely low pulsation levels are produced even at low speeds. In highly dynamic servo drives with reversing operation, the QXEH pumps offer maximum reliability.

In the overall product portfolio of QX internal gear units, the QEXH – as a single-stage pump with a maximum operating pressure of 280 bar – is positioned between pressure ranges 2 and 3 of the QX internal gear pumps.

Advantages

  •    -  compact, non-compensated design
  •    -  very low noise levels
  •    -  pressure and flow pulsations are minimal, thanks to pinion-shaft technology
  •    -  field-proven in both constant- and variable-speed drives
  •    -  first-rate reliability at both high and low speeds and in reversing operation
  •    -  long service life even under highly cyclical loading

Technical Data

Type Continuous pressure max. bar Peak pressure bar Displace­ment cm³/rev Speed max. rpm Volumetric efficiency % Data sheet
QXEH32 250 280 10…15.6 4600 > 95 QEXH-2 100-P-000096
QXEH42 250 280 20.4…32.4 4000 > 95
QXEH52 250 280 39.3…63.7 3200 > 95
QXEH62 250 280 80.2…124.8 2700 > 95
QXEH62-160 160 200 160.5 2300 > 95


Applications

  •    -  Hydraulic power units in general
  •    -  Plastics-processing machinery
  •    -  Pressure die-casting machines
  •    -  Hydraulic presses, etc.
  •    -  Wind-power plants

Options / Accessories

  •    -  Bolt-on valves
  •    -  Pipe flanges

 Bucher home


High Pressure Internal Gear Pumps QX
 

Description

The QX pumps are the 5th generation of Bucher internal gear pumps, which have proven themselves in thirty years of service around the world. The straightforward and rugged construction guarantees long service life without the need for extensive maintenance. Tandem and multiple pumps are available worldwide in more than 1000 variants.

             
 
   

Advantages

  •    -  high pressure
  •    -  low noise level
  •    -  long service life
  •    -  negligible flow and pressure
  •    -  insensitive to contamination 
     

Applications

  •    -  plastics machinery
  •    -  waste compactors
  •    -  machine tools
  •    -  hydraulic presses
  •    -  diecasting Machines
  •    -  lift/elevator drives
  •    -  hydraulic power units
  •    -  lift trucks

 click below for more information

 

QX2
 

 

QX3

 

 

QX4

 

 

QX5

 

 

QX6

 

 

QX8

     

           


Technical Data

 Pressure Range 1 
 image   frame size   part number   displacement cc   flow rate lpm   max. speed rpm   max. cont. pressure bar   max. int. pressure bar 
2 QX21-010 10.3 14.9 3600 160 210
QX21-012 12.9 18.3 125 160
QX21-016 15.9 23.0 100 125
3 QX31-020 20.0 29.0 3000 160 210
QX31-025 25.3 36.7 125 160
XQ31-032 31.2 45.2 100 125
4 QX41-040 40.7 59.0 3000 160 210
QX41-050 50.3 72.9 2600 125 160
QX41-063 64.7 93.8 2300 100 125
5 QX51-080 78.6 114 2300 160 210
QX51-100 101.1 146 2100 125 160
QX51-125 127.3 184 1800 100 125
6 QX61-160 160.5 232 1800 160 210
QX61-200 202.1 293 125 160
QX61-250 249.7 362 100 125
8 QX81-315 326.0 472 1750 160 210
QX81-400 402.6 583 1750 125 160
QX81-500 498.5 722 1500 100 125
 
 Pressure Range 2 
 image   frame size   part number   displacement cc   flow rate lpm   max. speed rpm   max. cont. pressure bar   max. int. pressure bar 
2 QX22-005 5.1 7.4 3600 210 250
QX22-006 6.3 9.1
QX22-008 8.0 11.5
3 QX32-010 10.0 14.5 3400 210 250
QX32-012 12.6 18.3
XQ32-016 15.6 22.6
4 QX42-020 20.4 29.5 3200 210 250
QX42-025 25.1 36.4
QX42-032 32.4 46.8
5 QX52-040 39.3 56.9 2800 210 250
QX52-050 50.6 73.2
QX52-063 63.7 92.1
6 QX62-080 80.2 116 2500 210 250
QX62-100 101.0 146 2300
QX62-125 124.8 181 2000
8 QX82-160 163.0 236 1800 210 250
QX82-200 201.3 291 1750
QX82-250 249.2 361 1500
 
 Pressure Range 3 
 image   frame size   part number   displacement cc   flow rate lpm   max. speed rpm   max. cont. pressure bar   max. int. pressure bar 
2 QX23-005 5.1 7.4 3600 320 400
QX23-006 6.3 9.1
QX23-008 8.0 11.5
3 QX33-010 10.0 14.5 3400 320 400
QX33-012 12.6 18.3
XQ33-016 15.6 22.6
4 QX43-020 20.4 29.5 3200 320 400
QX43-025 25.1 36.4
QX43-032 32.4 46.8
5 QX53-040 39.3 56.9 2800 320 400
QX53-050 50.6 73.2
QX53-063 63.7 92.1
6 QX63-080 80.2 116 2500 320 400
QX63-100 101.0 146 2300
QX63-125 124.8 181 2000
8 QX83-160 163.0 236 1800 320 400
QX83-200 201.3 291 1750
QX83-250 249.2 361 1500
 
 Pressure Range 4 
 image   frame size   part number   displacement cc   flow rate lpm   max. speed rpm   max. cont. pressure bar   max. int. pressure bar 
2 QX24-003 3.2 4.8 1500 360 400
QX24-004 4.2 6.2
QX24-005 5.1 7.4 3400 360 400
QX24-006 6.3 9.1
QX24-008 7.9 11.5
3 QX34-010 10.0 14.5 3200 360 400
QX34-012 12.6 18.3
QX34-016 15.6 22.6
4 QX44-020 20.3 29.5 2800 360 400
QX44-025 25.1 36.4
QX44-032 32.3 46.8
5 QX54-040 39.1 56.9 2500 340 400
QX54-050 50.3 73.2 2300
QX54-063 63.4 92.1 2000
6 QX64-080 79.8 116 1800 330 400
QX64-100 100.5 146 1750
QX64-125 124.2 181 1500
8 QX84-160 161.9 236 1800 330 400
QX84-200 200.0 291 1750
QX84-250 247.7 361 1500