Micro-volume dispensing screw pump eco-PEN 300/450/600｜Single-component dispensers｜Products Information

The eco-PEN 300/450/600, developed by ViscoTec, is a new and innovative constant-volume volumetric dispenser, suitable for micro-volume dispensing of low to medium viscosity liquids in diverse applications.

Highly accurate micro-volume volumetric dispensing, free of the influence of change in viscosity
Stable dispensing independent of the initial pressure as well as excellent pressure tightness that eliminates the need for valves
Suck-back effect reliably stops liquids at the end of dispensing. It prevents liquids from dripping, resulting in excellent finish to pattern drawing.
Simple structure and easy maintenance

Micro-volume dispensing screw pump eco-PEN 300/450/600

Specifications

	eco-PEN300	eco-PEN450	eco-PEN600
Feeding unit	Luer Lock (patented) with O-ring
Input pressure	0 to 0.6 MPa (Non-thixotropic liquid)
Maximum dosing pressure	1.6 to 2.0 MPa
Specific air-tightness *1	Approx. 0.2 MPa (Reference media: Approx. 10 mPa•s/20ºC)
Wet component	HD-POM/Stainless
Sealing	High polymer PE, VisChem
Fixed sealing	O-ring (FKM for liquid seal, NBR for dust seal)
Motor	18 to 24 VDC (with encoder)
Dosing rate	0.012 ml/rotation	0.05ml/rotation	0.14ml/rotation
Dosing accuracy *2	±1%
Repeatability	99% or higher
Minimum dosage	0.001ml	0.004ml	0.015ml
Volume flow rate *3	0.12 to 1.48 ml/min.	0.5 to 6.0 ml/min.	1.4 to 16.0 ml/min.
Weight	280g	300g	650g

*1: Maximum dosing pressure and specific air-tightness vary in proportion to the change in viscosity. Check on the manufacturer’s recommended values.
*2: Volumetric dosage dispensed as an absolute deviation per dispenser rotation. It varies according to the viscosity of medium to dose.
*3: Volume flow rate varies according to the viscosity and initial pressure.

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