Preeflow Eco-Pen

The dosing principle of preeflow® dispenser is an endless piston dispenser. This special dosing geometry allows an endless and pulsation free dosing flow. The possibility of reversing the dosing flow (suckback) will prevent from dripping and leads to a perfect control of media stringing or dripping. Especially sensitive fluids with high viscosity and fillers inside experience a gentle treatment due to the low shear stress and the low pressure. Therefore, it is: many tasks – one principle !
Conformal coating Preeflow® one for all : Sealing – Bonding – Micro dot – Dam & fill – Underfill – Glob top

Benefits
The medium is unaltered by this process. And simply by switching to reverse-flow, preeflow® ensures a clean and controlled stop of material or medium. No drips, no mess – always!
Preeflow® products offer the ideal properties to ensure that all relevant 1 & 2 component applications in several industries are perfectly dosed !

Preeflow eco-PEN – a volumetric dosing system for precise dispensing that is able to apply minimum quantities of one-component fluids. Due to the ViscoTec endless piston principle watery up to pasty fluids can be feeded perfectly. Independent from viscosity fluctuations a clean and process reliable dosing can be realized. The controlled cutoff thanks to the suck-back effect marks the preeflow devices of the eco-PEN series next to many other features.

eco-PEN 300

Smallest dosing quantity: 0,001ml
Adjustable dosing flow: 0,12 – 1,48 ml/min
Weight: 380g

Description

The innovative precision volume dosimeter eco-PEN 300 made by ViscoTec offers a wide range of applications for low to high-viscosity dispensing.

Theory of function

Preeflow® eco-PEN300 is a rotating and perfectly pressure-tight displacement system. Self-sealing rotor/stator design. Conveyance action by medium displacement in the stator through controlled rotor rotation. Safe conveyance without any modification of the medium. With its suck back option, preeflow® ensures clean and controlled material or medium cut-off while preventing post-dripping effects.

Data sheet
 
eco-PEN 450

Smallest dosing quantity: 0,004ml
Adjustable dosing flow: 0,50 – 6,00 ml/min
Weight: 410g

Description

The eco-PEN450 precision-volume dosing unit made by ViscoTec covers many applications within the low to medium-viscosity dispensing range.

Theory of function

The preeflow® eco-PEN450 is a rotating, absolutely pressure-tight, positive displacement system with self-sealing rotor-stator arrangement. The controlled rotary motion of the rotor transfers the medium by displacement in the stator. The medium is unchanged by this process. And simply by switching to reverse-flow, preeflow® ensures a clean and controlled stop of material or medium. No drips, no mess!

Data sheet
 
eco-PEN 600

Smallest dosing quantity: 0,015ml
Adjustable dosing flow: 1,40 – 16,0 ml/min
Weight: 750g

Description

The eco-PEN600 precision-volume dosing unit made by ViscoTec covers many applications within the low to medium-viscosity dispensing range.

Theory of function

The preeflow® eco-PEN600 is a rotating, absolutely pressure-tight, positive displacement system with self-sealing rotor-stator arrangement. The controlled rotary motion of the rotor transfers the medium by displacement in the stator. The medium is unchanged by this process. And simply by switching to reverse-flow, preeflow® ensures a clean and controlled stop of material or medium. No drips, no mess!

Data sheet
 
eco-PEN 700 3D

Smallest dosing quantity: 0,060ml
Adjustable dosing flow: 5,30 – 60,0 ml/min
Weight: 750g

Description

The and innovative precision-volume-dispenser eco-PEN700 made by ViscoTec offers a wide range of applications for low to medium-viscosity dispensing.

Theory of function

Preeflow® eco-PEN 3D is a rotating and perfectly pressuretight displacement system. Self-sealing rotor/stator design. Conveyance action by medium displacement in the stator through controlled rotor rotation. Safe conveyance without any modification of the medium. With its suck back option, preeflow® ensures clean and controlled material or medium cut-off while preventing post-dripping effects.

Data sheet

 

Eco-CONTROL EC200-K

Description

The control unit, eco-CONTROL EC200-K, made by ViscoTec, offers the precision-volume dosing unit of the eco-PEN series many application possibilities.

Theory of function

The unit is microprocessor-controlled. It is simple to operate, without submenu, and has graphic support. The set supply pressure is monitored and digitally displayed in bar or Psi. Error messages for filling level and motor current are also monitored. 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 are storable.

Data sheet

Speed-Control plug’n’Dose

Description

The preeflow Speed Control ‘plug’n’dose’ TP control unit allows you to control the eco-PEN using a simple time/pressure control unit.

Theory of function

Microprocessor-controlled. The supplied pressure adapter is connected to a conventional time/pressure control unit. The flow rate and flow speed of the eco-PEN are controlled using the specified pressure and a time mode

Data sheet

  • Self-sealing at approx. 2 bar with water as medium – the self-sealing effect increases with the viscosity
  • Dosing pressures of 16 to 20 bar are possible
  • Smaller needle and nozzle cross-sections
  • A basic suction pressure can be applied (for high-viscosity media)
  • The pressure tank is not required with self-levelling fluids
  • Dosing accuracy ± 1 %
  • Repeat accuracy > 99 %
  • Download PDF File
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