Convex Roller Pumping Head


SKU: 73-3035 Category:



This pump head features 3 convex rollers revolving in a concave tube bed which allows cells or particles to escape through a gap towards tubing wall to minimize damage. It is ideal for inoculating or harvesting mammalian cells.

  • Installs rapidly
  • Easily interchanged with other MCP/BVP pump heads
  • Ideal for chemical, biotechnological and pharmaceutical applications
  • Suitable for viscous fluids and fluids containing a high content of sensitive solids
  • Applications requiring hygienic conditions, durability and reliability

Adjustable Pump Rollers

On this pump-head, the 3 convex rollers can be adjusted and pressed symmetrically against the concave tube-bed, enabling the use of pump tubing with various wall thicknesses.

Please note: The listed flow-rates are approximate values in ml/min. They have been determined under the following conditions:

  • Medium: water
  • Temperature: 22ºC
  • No back-pressure
  • Pump tubing: Tygon®

The exact flow-rate depends on a number of parameters including quality and age of the tubing, pressure onto the tube-bed (adjustable), back-pressure, viscosity of fluid, temperature, etc.

Adjustable roller pressure accomodates wide range of tubing durometers (stiffness).

Very simple tube-loading

This pump-head accepts tubing with different diameters and wall thicknesses with ease. Thanks to the adjustable pump rollers, this is an ideal pump-head for media with high viscosity, or with a certain level of solid content.

Specifications 73-3035
Back Pressure, Max 1.5 bar (22 PSI) maximum with 1.6 mm wall thickness tubing; 2.5 bar (36 PSI) maximum with 2.4 mm wall thickness tubing
Flow Rate 0.41 to 3600 ml/min
Number of Channels 1
Number of Rollers 3
Series 380AD
Tubing ID 0.8 to 11.1 mm; 4.8 to 6.4 mm
Tubing Type standard tubing
Tubing Wall Thickness 1.6 mm or 2.4 mm