Development and manufacture of ultrasound-assisted screening and filtration systems for powders and liquids
assonic Dorstener Siebtechnik GmbH
DorstenNew on Amplifa
About assonic
assonic Dorstener Siebtechnik GmbH from Dorsten develops, designs and manufactures ultrasound-assisted screening machines and filtration solutions for industrial applications. The patented SONIC SPEED SCREEN™ technology combines high-frequency ultrasound with low-frequency tapping excitation and enables precise cut points from 20 μm. The portfolio includes rotary screening machines, compact screening machines, solid-liquid separation system solutions, conveying solutions and screen media. A key focus is powder processing and recovery in additive manufacturing (SLM metal and SLS plastic), including closed powder loops and fully automated integration of external systems. Further industries include the chemical, food and basic materials industries as well as process engineering. At the Dorsten site, a pilot plant for screening tests under production conditions and a laboratory for contract sieving and powder analysis (RETSCH CAMSIZER X2) are available. Sales and service are provided worldwide.
- Site
- Dorsten
- Processes
- Ultrasound-assisted sieving (SONIC SPEED SCREEN™) of powders, Sieving of powders and liquids (mesh sizes from 20 µm), Powder processing and recovery in additive manufacturing (SLM metal), Powder processing and recovery in additive manufacturing (SLS plastic), Solid-liquid separation, Closed powder loop, Contract sieving (contamination-free powder treatment), Screening tests in the pilot plant (SONIC SPEED SCREEN™ test system under production conditions)
- Materials
- Metal powder, Plastic powder, Mixed powder, SLM metal powder, SLS plastic powder, Non-metal powder, SONIC SPEED SCREEN™, Metal, plastic and mixed powders
- Certificates
- Screening tests under production conditions, Powder analysis (CAMSIZER X2), Contamination-free contract sieving
- Industries
- Additive manufacturing, Chemical industry, Food industry, Basic materials industry, Process engineering, Additive manufacturing (SLM metal, SLS plastic)
- 01
Consultation and requirements gathering
- 02
Screening tests in the pilot plant
- 03
Design and manufacture of the screening machines
- 04
Powder analysis and process optimization
- 05
Contract sieving
- 06
Commissioning, after-sales service and accessories
Materials and processes
SONIC SPEED SCREEN™
Patented ultrasound-assisted screening technology with tapping excitation for precise separations from 20 μm.
SLM metal powder
Gentle sieving and recovery of metal powders from additive manufacturing.
SLS plastic powder
Processing and reuse of plastic powders for laser sintering.
Metal, plastic and mixed powders
Precise sieving of powder materials for the highest industrial requirements.
Solid-liquid separation
Ultrasound-assisted cross-flow filtration for clarifying liquids.
Locations
Dorsten
DEHeadquarters, manufacturing, pilot plant and laboratory
- Materials
- Metal powder, plastic powder, mixed powder, non-metal powder
- MSS-150
- MSS-1000
- CSM-300
- CSM-500
- SPC-Compact
- SPC-Comfort
- RoSM-300
- RoSM-700
- RoSL-300
- RoSL-700
- RETSCH CAMSIZER X2
- SONIC SPEED SCREEN™ test system
Screening machines and systems
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Ultrasound-assisted sieving (SONIC SPEED SCREEN™) of powdersAdditive | – | – | – | – | Metal powder, Plastic powder, Mixed powder |
| Sieving of powders and liquids (mesh sizes from 20 µm)Additive | – | – | – | – | Powders (metal, plastic, mixed powder), Liquids |
| Powder processing and recovery in additive manufacturing (SLM metal)Additive | – | – | – | – | SLM metal powder |
| Powder processing and recovery in additive manufacturing (SLS plastic)Additive | – | – | – | – | SLS plastic powder |
| Solid-liquid separationAdditive | – | – | – | – | – |
| Closed powder loopAdditive | – | – | – | – | Metal powder, Plastic powder |
| Contract sieving (contamination-free powder treatment)Additive | – | – | – | – | Powder materials |
| Screening tests in the pilot plant (SONIC SPEED SCREEN™ test system under production conditions)Testing | – | – | – | – | – |
| Powder analysis and classificationTesting | – | – | – | – | Powder materials |
| Ultrasound-assisted cross-flow filtration (clarification of liquids)Additive | – | – | – | – | Liquids |
| Loosening, gentle mixing and precise sieving of non-metal powders (process module)Additive | – | – | – | – | Non-metal powder |
12 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Ultrasonic screening machine MINI SONIC SCREEN (batches up to 10 l) | assonic MSS-150 | – | Batch processing of small powder quantities up to 10 l | – | Dorsten |
| Ultrasonic screening machine (MSS series) | assonic MSS-1000 | – | Efficient, safe powder handling for smaller powder quantities | – | Dorsten |
| Compact screening machine (continuous coarse grain discharge) | assonic CSM-300 | – | Medium-sized powder quantities with continuous coarse grain discharge | – | Dorsten |
| Compact screening machine (mesh sizes from 20 µm) | assonic CSM-500 | – | Smallest mesh sizes from 20 µm | – | Dorsten |
| Screening system for dry process atmosphere | assonic SPC-Compact | – | – | – | Dorsten |
| Fully automated powder handling system (integration of external machines, e.g. additive | assonic SPC-Comfort | – | – | – | Dorsten |
| System solution: loosening, mixing and sieving of non-metal powders | assonic RoSM-300 | – | – | – | Dorsten |
| System with fully automated integration of external machines | assonic RoSM-700 | – | – | – | Dorsten |
| Ultrasound-assisted cross-flow filtration system (clarification of liquids) | assonic RoSL-300 | – | – | – | Dorsten |
| Filtration system with fully automated integration of external machines | assonic RoSL-700 | – | – | – | Dorsten |
| Powder analysis device (laser diffraction/image analysis) | RETSCH CAMSIZER X2 | – | – | – | Dorsten |
| SONIC SPEED SCREEN™ test system | assonic | – | Pilot plant, tests under production conditions | – | Dorsten |
Additional services
Quality
Screening tests in the pilot plant are carried out under production conditions; in the laboratory powders are analyzed and classified with the RETSCH CAMSIZER X2. Contract sieving is performed free of contamination.
| Evidence | Dorsten |
|---|---|
| Screening tests under production conditions | |
| Powder analysis (CAMSIZER X2) | |
| Contamination-free contract sieving |