For dosing 2-component fluids

preeflow® eco-DUO

The first purely volumetric dispensing system for precise mixing and applicating minimum quantities of two-component fluids and pastes (for example adhesive dispensing). With targeted controlling of the single components the mixing ratio can be adjusted up to the second place after the comma. 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-DUO series next to many other features. Precision mechanics coupled with the latest digital control – a combination designed to save your capital. Use it and you’ll soon find out.
Due to the integrated pressure sensors in the 2-component dosing head, combined with a flowscreen pressure evaluation, a safety shut down is guaranteed at any time.

The preeflow ® eco-DUO convinces


Valveless sealed technology without dripping

Dosing pressures up to 40 bar are possible

The pressure tank is not required with self-levelling fluids

Repeat accuracy > 99 %

Self-sealing: No pressure valves are necessary

Dosing accuracy ± 1 %

Guaranteed safety shut down

Products in detail



Smallest dosing quantity: 0.005 ml
Adjustable dosing flow: 0.1 – 6.6 ml/min
Weight: ca. 1,100 g

Description

The new eco-DUO330 precision-volume dosing unit made by ViscoTec doses smallest quantities which until now have not been achieved.

Theory of function

The preeflow eco-DUO 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 materia or medium. No drips, no mess!

Datasheet eco-DUO330

Smallest dosing quantity: 0.010ml
Adjustable dosing flow: 0.2 to 12 ml/min
Weight: 1,100g

Description

The eco-DUO450 precision-volume dosing unit made by ViscoTec covers many applications within the low to medium-viscosity dispensing range.

Theory of function

The preeflow eco-DUO 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 materia or medium. No drips, no mess!c

Datasheet eco-DUO450 Spare parts eco-DUO450

Smallest dosing quantity: 0.030ml
Adjustable dosing flow: 0.6 to 32 ml/min
Weight: 1,600g

Description

The eco-DUO600 2-components precision-volume dosing unit made by ViscoTec covers many applications within the low to medium-viscosity dispensing range.

Theory of function

The preeflow eco-DUO 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 materia or medium. No drips, no mess!

Data sheet eco-DUO600 Spare parts eco-DUO600

Control Units


Description

The innovative eco-CONTROL EC200-DUO, made by ViscoTec offers a wide range of applications for 2-component-precision-volume-dispensers.

Theory of function

The control unit eco-CONTROL EC200-DUO has been developed and tested for accurate work with the preeflow 2-K-precisionvolume-dispensers. The control unit has a variety of configuration options to dosing, dispensing time and mixing ratio. All production-related values can be stored and changed at any time. The operation takes place over an intuitive user guidance using a graphical user interface. An integrated pressure control ensures the optimum process safety of the system. There is also the possibility of data exchange with a USB interface.

Data sheet eco-CONTROL EC200-DUO

Description

The controller Speed-Control “plug’n’mix” from the brand preeflow was especially developed for 2-components applications.

preeflow Plug'n'Mix speed control

Theory of function

Thanks to a standard terminal program can be programmed and configured the controller. In this case, the dispenser eco-DUO could be calibrated for different functions such as dosing speed or mixing ratio.
The volume speed, the dosing quantity and the suck back are be controlled the process by a 0 to 10 V signal. The integrated motor monitoring as overload protection for the dispenser can be processed as an error message.

Data sheet 2K-Speed-Control plug’n’mix

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