preeflow eco-pen range
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preeflow® eco-PEN Precision Volumetric Dosing Pump, for Highly Accurate Repeatable Dispensing

preeflow eco-pen dispening robotpreeflow ecoPEN 450 dispenser diagrampreeflow eco-PEN breakdown diagrampreeflow EC200-B control unitpreeflow dispensing system

The preeflow eco-PEN is a precision volumetric, positive displacement, dosing/dispensing system that gives you accuracy and repeatability by means of a rotor which turns inside a stator. The preeflow eco-PEN doses and dispenses a wide range of material viscosities with no stress to the material, and absolute control.

We can integrate the preeflow eco-PEN into any robotic dispensing system. The preeflow eco-PEN delivers optimum results when used with Micron-S Precision Nozzles.

  • Precision, process stable dosing
  • Gentle product dosing process
  • Linearly proportional control characteristics
  • Wide control and application range
  • Controlled reverse flow and clean product break
  • Easy system integration
  1. Electronics packaging
  2. SMD/SMT
  3. Semiconductor
  4. LCD/LED
  5. Medical
  6. Biological chemistry
  7. Laboratory
  8. Photovoltaic
  9. Optics and photonics
preeflow eco-PEN selector guide
The new eco-PEN precision-volume dosing unit covers many applications from the lowest to the highest material viscosities, where the highest volumetric accuracy is required.
Dot-dosing, bead application with dispensing rate adjustable to the run speed, encapsulation
preeflow ecoPEN 450 dispenser diagram
Model Smallest dosing unit Adjustable dosing unit Weight
eco-PEN300 0.001 ml 0.12 – 1.48 ml/min 380g
eco-PEN450 0.004 ml 0.5 – 6.00 ml/min 410g
eco-PEN600 0.015 ml 1.4 – 16.00 ml/min 750g
eco-PEN700 0.060 ml 5.3 – 60.00 ml/min 750g
For two part formulations
0.010 ml 0.2 – 12.00 ml/min 1100g
For two part formulations
0.030 ml 0.6 – 32.00 ml/min 1600g

preeflow dispensing system preeflow EC200-B control unit

The eco-CONTROL EC200 control system provides total control of the dispensing process. It is designed for either benchtop or rack mounted location, dependent on the model.

Operating principle
The unit is microprocessor-controlled. It is simple to operate, without submenu, and has graphic support. External signals can be connected via I/O ports to a PLC for control in automated lines. A wide variety of dosing programs with part management can be stored.

The supply pressure (with pressure sensor kit) is monitored and can be displayed digitally in bar or psi.

Error messages for filling level and motor current are also monitored (an RS232 interface is provided).

It is possible to control two eco-PEN precision-volume dosing units (as a factory-fit option).


  1. Quantity program
  2. Start/stop program
  3. Time program
  4. Teach IN function (external and navi)
  5. Set-volume readout in g or ml
  6. Dosing flow readout in ml/min and g/min
  7. Storage of dosing programs with part management
  8. Set pressure / actual pressure reading in bar/psi
Part number Description
VIS20505 preeflow eco-PEN 300
VIS20092 preeflow eco-PEN 450
VIS20048 preeflow eco-PEN 600
VIS20081 preeflow eco-DUO 450
VIS20048 preeflow eco-DUO 600
VIS20120 preeflow eco-CONTROL EC200-K desktop unit
VIS20121 preeflow eco-CONTROL EC200-B built in/rack-mounted unit
VIS20143 preeflow eco-PEN stand
VIS20145 preeflow holder for eco-PEN 300/450

Self-sealing rotor/stator design



preeflow catalogue Download the preeflow Product Brochure


See also our Technical Articles and White papers page to download “The “Endless Piston” Pump – Technology for Precision Dispensing” – a whitepaper about this technology.

Contact Details

17 Station Field Industrial Estate,
Banbury Road, Kidlington
Oxfordshire, England

t 01865 842842

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August 2016 - Version 3.0