
- Boxer Pumps
- Produkte
- Membranpumpen - Gas
- BOXER 5KS Miniature Diaphragm Pump Series
5KS Series
The 5KS miniature diaphragm pump series sets new standards in performance density. An open flow of above 5.5 l/min is available with dimensions of just 5.7 x 4.4 x 3.0 cm and, importantly, this is achieved without excessive motor speeds. This pump has been designed for portable environmental analyser and medical devices.
If desired the 5KS can be run at reduced voltage for lower flows normally associated with pumps of this physical size. At these slow running speeds the 5KS offers exceptional low noise and extended motor life.
Like all other pumps in the Boxer range, this miniature diaphragm pump series can be customised to specific requirements. The components are produced in wide variety of materials providing compatibility with a wide range of applications.
The 5KS is available in 3 motor options: iron core (2 versions) and coreless.
› Flow rate > 5.5 l/min
› Outstanding flow to size ratio
› Slow running for exceptional low noise and high life
› Versatility of 3 motor options
Flow control is available in combination with PWM Flow Controller.
Return to Minature Diaphragm Pumps for Air and Gas range.
Technical Data
Free Flow | 5.7 l/min |
Max Pressure | 650 mbar |
Max Vacuum | -500 mbar |
Voltage Options | 12 V DC |
Power Consumption | 1.5 to 4 W |
Motor Termination | Solder tags (no preferred rotational direction) |
Operating Temperature Range | 5 to +60 °C |
Operating Humidity Range | 5 to 95% RH |
Elastomers Options | EPDM, Silicone |
Other Wetted Parts | PPS (Polyphenylene Sulphide) |
Tube Connection | Barb for ∅ 5.0 mm tubing |
Weight | 80g |

All 5KS pumps are supplied with a mounting clip as standard.


All data is representative for initial selection purposes. It is the responsibility of the user to determine suitability for the intended use.
Technical Data
Free Flow | 5.1 l/min |
Max Pressure | +300 mbar |
Max Vacuum | -300 mbar |
Voltage Options | 12 / 24 V DC |
Power Consumption | 1.5 to 4 W |
Motor Termination | Solder tags (marked + and -) |
Operating Temperature Range | 5 to +60 °C |
Operating Humidity Range | 5 to 95% RH |
Elastomers Options | EPDM, Silicone |
Other Wetted Parts | PPS (Polyphenylene Sulphide) |
Tube Connection | Barb for ∅ 5.0 mm tubing |
Weight | 85g |
Technical Data
Free Flow | 5.5 l/min |
Max Pressure | 400 mbar |
Max Vacuum | -400 mbar |
Voltage Options | 6 V DC |
Power Consumption | 1.0 to 3 W |
Motor Termination | 100 mm leads, 7mm stripped / tinned (red +, black -) |
Operating Temperature Range | 5 to +60 °C |
Operating Humidity Range | 5 to 95% RH |
Elastomers Options | EPDM, Silicone |
Other Wetted Parts | PPS (Polyphenylene Sulphide) |
Tube Connection | Barb for ∅ 5.0 mm tubing |
Weight | 100g |

All 5KS pumps are supplied with a mounting clip as standard.


All data is representative for initial selection purposes. It is the responsibility of the user to determine suitability for the intended use.