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

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

The preeflow eco-PEN is a precision volumetric, positive displacement, dosing/dispensing system capable of dispensing nano, micro, and milliliter quantities of material accurately and repeatably. eco-PEN technology is based on the well established and proven preeflow progressive cavity pump principle, which enables true volumetric dispensing that is viscosity independent. The technology can dispense of a wide range of viscosities, from water-like substances up to thick pastes, including filled materials like solder paste, with low shear and no dripping.

The eco-PEN is suitable for both line and dot dispensing, with bead widths starting from >0.1 mm, and an adjustable dispensing rate to suit the run speed. With accuracy of ±1%, >99% of the time, the device gives electronics and medical device assembly application specialists a reliable, repeatable tool for dispensing small liquid volumes.

The preeflow eco-PEN can be easily integrated into any of our robotic dispensing systems or other automation. Its lightweight design, weighing as little as 175 g, enables its use in high speed robotics, and the cartridge design means that several eco-PENs can be tightly spaced together in a narrow grid. The preeflow eco-PEN delivers optimum results when used with Preci-Tips Precision Dispensing Tips.

Features & Benefits

• Precise, process-stable dispensing as small as 0.00025ml (0.25μl)
• Highly repeatable and consistent dispensing, with an accuracy of ±1%, >99% of the time
• Gentle product dosing process using positive displacement
• Linearly proportional control characteristics
• Wide control and application range
• Controlled reverse flow and clean product break
• Easy system integration, including as part of our archytas series of robot integrations

Applications

The preeflow eco-PEN is designed for dot-dispensing, bead application with dispensing rate adjustable to the run speed, and encapsulation applications for:

• Solder paste
• Die-attach adhesives
• Edge-bond adhesives
• Electrically conductive adhesives
• Underfills
• Potting compounds
• Electronics packaging and encapsulation
• SMD/SMT
• Semiconductor
• LCD/LED
• Medical device assembly
• Biological chemistry
• Laboratory
• Photovoltaic
• Optics and photonics

Controllers

The eco-CONTROL EC200 2.0 control system provides total control of preeflow volumetric valves during the dispensing process. It’s designed for either benchtop or rack-mounted location, dependent on the model.

Operating principle

The unit is operated via a bright, 7” touch screen, making it simple to use. External signals can be connected via I/O ports to a PLC for control in automated lines. Up to 100 dosing programs, with part management can be stored locally.

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).

Features

• Quantity and start/stop program
• Set-volume readout in g or ml
• Dosing flow readout in ml/min and g/min
• Storage of up to 100 dosing programs with part management
• Set pressure and actual pressure readings in bar/psi

Selector Guide

Other Information

Syringe adapter with integrated bleed valve

For use in applications where the chosen material is supplied in syringe barrels, an optional adapter with an integrated bleed valve allows for direct dispensing without the risk of air bubble formation.

Made of black anodized aluminium and stainless steel, and FFKM sealing elements, the syringe adapter is compatible with almost all materials and allows for air bubble-free dispensing, even after several syringe barrel changes.

With a 1/8-inch external thread, the adapter is well suited for the eco-PEN, eco-DUO series 300, 330 and 450 and eco-DUOMIX450.

Self-sealing rotor/stator design

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

Stainless Steel Housing Kit

For applications which require the dispensing of aggressive materials such as solvents or plasticisers or abrasive compounds, a stainless steel housing kit is available. Offering improved resistance to fluxes and oxidants as well as organic and inorganic acids below pH4, the robust design of the steel kit extends the lifetime of the eco-PEN 300 and 450, whilst maintaining the accuracy and repeatability of the unit.

Hardwearing by design, the housing kit can withstand repeated cleaning making it suitable for applications carried out within a cleanroom environment.

Set-up and maintenance

Setting up your eco-PEN is fast and straightforward. preeflow have put together an easy to follow video which will guide you during your first set up.

For information on how to maintain and clean your eco-PEN watch preeflows video tutorial.

Case studies

See the preeflow eco-PEN as part of a real application in these dispensing and robotics Case Studies:

	Dispensing for particle sampling Apacor Ltd, a leader in in vitro medical diagnostics, required a way of scaling up their recently launched air sampling product. By integrating a preeflow eco-PEN and a Fisnar F4303N ADVANCE robot into their workflow, they achieved precise and repeatable droplet dispensing onto their glass substrate.
	Automated dispensing helps security manufacturer increase throughput and quality GJD Manufacturing switched to an automated method of dispensing silicone for sealing a plastic lens to aluminium housing. By doing this, they improved the throughput and quality of their white-light and infra-red LED illuminators for the security industry.
	Precision dispensing helps electrical manufacturer to reduce waste by improving quality and yield By switching to an automated dispensing system, this electrical manufacturer reduced scrappage and therefore improved quality and yield of their product.

All Downloads

Filename	Size	Download
preeflow eco-PEN data sheet for all models	0.55MB
preeflow Microdispensing Brochure cover	2.42MB
The Endless Piston Pump Technology for Precision Dispensing	0.37MB
Case Study - Apacor - Dispensing for Particle Sampling	0.18MB
Case Study - Reducing maintenance costs in automotive manufacturing	0.16MB
Case study: Automated dispensing helps security manufacturer increase throughput and quality	1.12MB

Ordering Information

01865 842842	orders@intertronics.co.uk