Piston dosing technology
Piston metering technology
piston dosing technology
Fast and high-precision dosing of liquid to highly viscous fluids
Promera offers innovative piston dosing systems that guarantee maximum precision and speed when processing liquid to highly viscous media. Our intelligent system solutions are ideal for industrial applications where reproducible recipes and consistent material quality are crucial. We build piston dosing systems for any industrial company and its applications.
Advantages of our technology
Why piston dosing technology from PROMERA?
Reproducibility
Gleichbleibende Dosiergenauigkeit von <0,2%.
Consistent material quality
Stable processing results for your production.
Trouble-free operation and long service life
Reliable technology that minimizes downtime.
Process reliability
Reliable operation with a system availability of over 98%.
Low production costs
Efficient systems reduce your workload.
Higher productivity
Maximize your production output with our solutions.
Our piston dosing systems
Wide viscosity range from 10 to 100,000 mPas
Hydraulics:
- Hydraulic pressure up to 280 bar
- Hydraulic pump delivery rate: up to 67 ltr / min or up to 145 ltr / min (HVS)
- Hydraulischer Schalldruck: < 75 dBA
- Connection data: 400 V / approx. 35 kW or 400 V / approx. 75 kW (HVS)
Technical features:
- 2 or 4 material inputs & outputs per piston dispenser
- Schussvolumengenauigkeit von < 0,2% unabhängig von der Schussvolumengröße
- Shooting capacity up to 120 ltr/min or 160 ltr/min (HVS)
- Processing temperatures from 20 °C to 80 °C
- Batch operation for mixers
- Recipe change without intermediate mixing (cleaning run)
- Consideration or correction of temperature fluctuations, density and gas loading of the medium
KD-30 ltr.
For small to medium
dosing quantities.
Liquid delivery data
Max. Material outlet pressure:
approx. 60 bar
Delivery capacity:
approx. 30 ltr.
Conveying time:
from 10 to 30 sec
Reproducibility:
approx. 2 to 10 cm³
Genauigkeit in % (Schussvolumen):
< 0,2
Min. / max. material temperature:
approx. 20 to 80 °C
Viscosity of pumped media:
from 10 to 100,000 mPas
Fluid connections on the piston dispenser:
up to 2 or up to 4
KD-60 ltr.
Perfect for medium-sized production processes.
Liquid delivery data
Max. Material outlet pressure:
approx. 60 bar
Delivery capacity:
approx. 60 ltr.
Conveying time:
from 10 to 60 sec
Reproducibility:
approx. 2 to 10 cm³
Genauigkeit in % (Schussvolumen):
< 0,2
Min. / max. material temperature:
approx. 20 to 80 °C
Viscosity of pumped media:
from 10 to 100,000 mPas
Fluid connections on the piston dispenser:
up to 2 or up to 4
KD-90 ltr.
For larger quantities with high precision.
Liquid delivery data
Max. Material outlet pressure:
approx. 60 bar
Delivery capacity:
approx. 90 ltr.
Conveying time:
from 10 to 90 sec
Reproducibility:
approx. 2 to 10 cm³
Genauigkeit in % (Schussvolumen):
< 0,2
Min. / max. material temperature:
approx. 20 to 80 °C
Viscosity of pumped media:
from 10 to 100,000 mPas
Fluid connections on the piston dispenser:
up to 2 or up to 4
KD-120 ltr.
Maximum capacity for demanding applications.
Liquid delivery data
Max. Material outlet pressure:
approx. 60 bar
Delivery capacity:
approx. 120 ltr.
Conveying time:
from 10 to 120 sec
Reproducibility:
approx. 2 to 10 cm³
Genauigkeit in % (Schussvolumen):
< 0,2
Min. / max. material temperature:
approx. 20 to 80 °C
Viscosity of pumped media:
from 10 to 100,000 mPas
Fluid connections on the piston dispenser:
up to 2 or up to 4
Mini piston dispenser series
Precise dosing in small production environments (0.3 to 10 liters)
The PROMERA mini-piston dispenser series is specially designed for applications in medical technology, the plastics industry and in small rubber mixers. This series enables the precise volumetric dosing of liquids in batch operation and is ideal for special mixtures used in research and development or in the manufacture of seals.
Functional principle of the mini-piston dispenser:
The piston dosing cylinder (0.3/ 1.2/ 4.8/ 10 liters) is driven by a hydraulic system from PROMERA.
External feed pumps or ring lines supply the dosing cylinder with the medium and a digital position measuring system records the position with high precision.
A PLC control system calculates the piston position and corrects parameters such as temperature, density and gas load.
The medium is injected into the mixer variably or constantly via an injection valve with up to 6 fluid connections.
The recipe is managed via communication with a higher-level control system.
Technical highlights:
| Category | Details |
|---|---|
| Volume option | 4 sizes with 0.3L; 1.2L; 4.8L and 10L |
| Injection pressure | Up to 60 bar for demanding processes |
| Compact design | The dosing cylinder and control unit can be integrated directly into a control cabinet as a compact system. |
| High security | Double seal with leakage chamber, which is backfilled with a process-neutral liquid, reliably separates the hydraulic and material compartments. |
| Spare and wear parts | Many identical components for all sizes, including valves, position measuring systems and hydraulic parts. |
| Stabilization before use | Recirculation up to the injection point ensures that process parameters such as temperature and gas content are already optimally stabilized before the first shot. |
Injection valves
Our injection valves are specially developed for use with large piston dispensers and guarantee a reliable supply of material. They are connected directly to the piston dispenser and serve as the end point of the pipelines. The valves close the system securely to prevent the lines from running empty and are optimized for larger discharge volumes and bore diameters.
High capacity:
Up to 6 (or 5 with HVS) different fluids can be processed per injection point
Safe shut-off:
Fluids that are not required in the current recipe are safely and actively shut off.
Reliability:
Contamination or blockages due to non-return valves are excluded.
No material mixing:
The valves effectively prevent unwanted mixing of the fluids between the piston metering unit and the injection valve.
Robust design:
Thanks to the ceramic coating, the injection valves are highly resistant to chemicals and mechanical stress.
Areas of application
Industries and raw materials
Application sectors:
- Rubber and tire industry
- Plastics industry
- Medical technology
Application raw materials:
- Silane
- Resine
- Oils
- Polyoils
- Liquid Rubber
individual solutions
Reliable control
Our experts work with you to develop customized piston dosing systems that are perfectly tailored to your requirements. Flexible adaptation of the systems to industry-specific requirements is no problem for us. From the adaptation of dosing capacities to integration into specific production environments - we will find the right solution for your challenge.
Easy maintenance
The maintenance shaft on the PROMERA piston dispenser enables the material piston to be changed without having to completely dismantle the piston dispenser.
