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Single-component dispensers
Micro-volume dispensing screw pumpeco-PEN 300/450/600

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
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 | 0.012ml/ 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.