dos screw
progressive cavity dispenser
dos screw
progressive cavity dispenser
endless dispensing power
by dosmatix.
endless dispensing power by dosmatix.
The dos screw progressive cavity dispenser complements the dosmatix dispenser portfolio with another innovative solution for precise, pulsation-free and continuous dispensing. This dispenser enables the application of very small, precise quantities starting from <1 µl, as well as continuous, uninterrupted bead dispensing at a speed of up to 600 ml/min. The result: precise, consistent, and material-friendly dispensing.
Thanks to its robust design, the dos screw is particularly suitable for applications with highly viscous, filled and thermally conductive materials.
precise, robust and multifunctional.
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that’s why dos screw
is the right product for you
that’s why dos screw is the right product for you
Pulsation-free for homogeneous bead applications
- Rotor-stator system for constant feeding rate with consistent material flow
- High efficiency and reliability thanks to the constriction principle
Highly flexible for a wide range of media and applications
- Precise and reliable results with low and high viscosity as well as filler-laden media
- Perfectly suited for 1K and 2K bead application on housings and other surfaces
- Ideal for dispensing very small quantities, such as when bonding magnets
- Predestined for dam and fill potting (e.g. display potting) or for thermally conductive pastes such as gap fillers
High precision for very small material quantities
- A retraction function enables uniform bead application without visible transitions
- In combination with dosmatix material supply and optional degassing/preparation, precise dispensing results are achieved
High
performance with
low weight
- Flexible use due to low dead weight on stand, axes or robot
- Compact design for maximum travel ranges
- Can be mounted in any position (no design restrictions in the horizontal or vertical)
these innovations enable
best-in-class performance
1
2
3
4
1
Flexible inlet with pressure sensor
2
Flow-optimized material guidance
3
Precise progressive cavity
4
Flexible dispensing outlet
Flexible inlet with pressure sensor (1)
The adjustable inlet allows flexible integration in different directions, ideal for adapting to complete systems. The integrated pressure sensor monitors the inlet pressure of the material and thus ensures precise pre-pressure.
Flow-optimized material guidance (2)
The flow-optimized material guidance in the housing of the stator to rotor ensures maximum performance and optimum dispensing speed.
Precise progressive cavity (3)
The simple control of the dispenser in both directions enables even and continuous material application. This ensures clean dispensing results with controlled tearoff without dripping.
Flexible dispensing outlet (4)
Thanks to the LuerLock connection with union nut on the outlet, various dispensing needles can be easily connected. This makes the dos screw ideal for a wide range of applications.
Other connections, such as threads, are also possible by simply replacing the connection piece.
how the dos screw works
bead dispensing with dos screw
dos screw presented live
technical data
| Variant 1C | XS | S | M | L | XL |
| Quantity per rotation | XS 3 µl or 10 µl or 50 µl | S 0.14 ml or 0.53 ml | M 0.35 ml | L 1.1 ml | XL 2 ml or 9.5 ml |
| max. dispensing speed* | XS 180 µl/min or 600 µl or 3000 µl | S 8.5 ml/min or 32 ml/min | M 21 ml/min | L 66 ml/min | XL 120 ml/min or 570 ml/min |
| min. dispensing quantity | XS < 1 µl or 1 µl or 5 µl | S 0.015 ml or 0.06 ml | M 0.04 ml | L 0.1 ml | XL 0.2 ml or 1 ml |
| Material viscosity | XS up to 1,000,000 mPa·s | S up to 1,000,000 mPa·s | M up to 1,000,000 mPa·s | L up to 1,000,000 mPa·s | XL up to 1.,000,000 mPa·s |
| Dimensions** (lxwxh) | XS 190 x 89 x 341 mm | S 182 x 89 x 353 mm | M 195 x 96 x 424 mm | L 200 x 96 x 452 mm | XL 200 x 96 x 471 mm |
| Weight aluminium*** | XS ca. 2.3 up to 2.9 kg | S ca. 2.3 up to 2.95 kg | M ca. 2.8 up to 3.5 kg | L ca. 3.9 kg | XL ca. 4.3 kg |
| Weight stainless steel*** | XS ca. 2.5 up to 3.3 kg | S ca. 2.6 up to 3.4 kg | M ca. 3.7 up to 4.4 kg | L ca. 5.1 kg | XL ca. 5.8 kg |
* 60 rotations/min
** without dispensing needle
*** incl. motor
Variant 2C: All 1C variants can be combined in different ways to form a 2C variant.
technical data
| Variant 1C | XS | S | M | L | XL |
| Quantity per rotation | 3 µl or 10 µl or 50 µl | 0.14 ml or 0.53 ml | 0.35 ml | 1.1 ml | 2 ml or 9.5 ml |
| max. dispensing speed* | 180 µl/min or 600 µl or 3000 µl | 8.5 ml/min or 32 ml/min | 21 ml/min | 66 ml/min | 120 ml/min or 570 ml/min |
| min. dispensing quantity | < 1 µl or 1 µl or 5 µl | 0.015 ml or 0.06 ml | 0.04 ml | 0.1 ml | 0.2 ml or 1 ml |
| Material viscosity | up to 1,000,000 mPa·s | up to 1,000,000 mPa·s | up to 1,000,000 mPa·s | up to 1,000,000 mPa·s | up to 1.,000,000 mPa·s |
| Dimensions** (lxwxh) | 190 x 89 x 341 mm | 182 x 89 x 353 mm | 195 x 96 x 424 mm | 200 x 96 x 452 mm | 200 x 96 x 471 mm |
| Weight aluminium*** | ca. 2.3 up to 2.9 kg | ca. 2.3 up to 2.95 kg | ca. 2.8 up to 3.5 kg | ca. 3.9 kg | ca. 4.3 kg |
| Weight stainless steel*** | ca. 2.5 up to 3.3 kg | ca. 2.6 up to 3.4 kg | ca. 3.7 up to 4.4 kg | ca. 5.1 kg | ca. 5.8 kg |
* 60 rotations/min
** without dispensing needle
*** incl. motor
Variant 2C: All 1C variants can be combined in different ways to form a 2C variant.
how dos screw works
Potting material is transported from the material feeder to the dispenser.
Filling the material into the dispenser and dispensing through the rotor and stator.
Continuous bead application or spot
dispensing is possible.
example applications
total systems at a glance
Link to: manual workstations
manual workstations
(Starter) solution
Cost-effective and space-saving alternative for manual dispensing applications.
Link to: integration module
Integration module
Individually combinable
Individual products can be combined or integrated into production lines.
Link to: standalone system atmosphere
Standalone
Potting under atmosphere
Automated dispensing systems as standalone systems offer the ideal solution for series products.
