DDS

DYNAMIC DISC SCREENING

The Ecostar patented technology that revolutionizes the waste separation sector. Particularly efficient on materials such as compost, wood, biomass, metals, tires, glass, car fluff, RDF/SRF, construction and demolition debris, ash, and inerts.

Innovative materials separation technology

Unique in its kind, DDS is based on a series of shafts equipped with hexagonal or octagonal discs, with a flat profile, made of Hardox to guarantee maximum resistance. Thanks to this design, the material flows on the screen’s discs and is subjected to a jolting movement that separates the waste. The undersized material drops below the screening surface, passing through the gaps between the discs while the oversized material advances to the end of the screening plane. The result is a clean fraction, ready for recycling processing.

Hardox discs: lower maintenance costs due to wear
Anti-wrapping - anti clogging system
Screening section variation system ± 30%

Anti-wrapping systems

The drive shaft is protected by highly resistant loose sleeves which are independent of the rotation of the shaft itself. This prevents long and stringy parts of the material being screened from getting wrapped around the shaft. This optimizes the separation and significantly reduces downtime.

Operational flexibility

DDS enables real time adjustments to the pre-established screening section (±30%) by varying the shaft speed with the aid of an inverter. The screening sections available range from 10 to 350 mm. This technology enables faster screening (1 m/sec), using less space and reaching a productivity of up to 200 t/h.

Advantages

-70% 
energy consumption

The efficiency of DDS enables the use of smaller electric motors, that is, just 7.5 kW up to 20 t/h, and savings up to 70% on energy consumption compared to traditional screens.

200 T/H
Productivity up to 200 T/H

DDS is able to screen materials faster (1 m/sec), using less space and is able to process up to 200 t/h.

± 30%
variation of the screening section

DDS enables real time adjustments to the pre-established screening section (± 30%) by varying the shaft speed with the aid of an inverter.

Compare the technologies

TECHNOLOGY
Specific to materials
Compatible products
Anti-clogging system
Anti-wrapping system
On-site variable screening section
Separates wet materials
Flat profile discs
Discs material Hardox
Screening sections mm
DDS
Compost - Wood - Biomass - Metals - Tires - Glass - Car fluff - RDF/SRF -  Constructions and Demolitions - Incinerator Ash - Aggregates
Hextra - Hexact - Hexpert
Basic
+-30%
10-350
HDDS
Industrial Waste- Municipal Solid Waste - Organic Waste
Hextra - Hexact - Hexpert
Hyper
+-30%
10-350
SWAT
Multi-material - Pet / Plastics - Paper and Cardboard
Hextra - Hexact - Hexpert
Basic
Handbook (+-50%)
100-200

Contacts

More than 20 years of research and development

Conceived from the commitment of our R&D department, Ecostar products are used worldwide by the most important companies in the industry.
Contact us for further information or to get in touch with our local dealers.

Go to Contacts

News for DDS

SCREENING OF GREEN AND ORGANIC WASTE WITH HEXPERT

COMPLETE SORTING LINE, ENTIRELY DESIGNED BY ECOSTAR, THE CASE STUDY OF PONIKVE KRK This is the story of Ponikve eko otok Krk utility company in Croatia, which in 2020 decided to implement a complete sorting line – Ecostar’s Hexpert system – to treat the green and organic waste from the island of Krk. Krk is … Continued
3 June 2021

Landfill mining

HOW TO RECOVER DUMPED WASTE WITH MECHANICAL SEPARATION While progress has been made in the past years regarding the management of waste, landfilling will not be eradicated in the near future, for a lot of reasons. Despite enhanced legislation, policy development and regulatory supervision, landfilling is still sought as the simplest solution to get rid … Continued
30 April 2021

The benefits of material screening

WHY SCREENING CAN INCREASE THE VALUE AND QUALITY OF THE MATERIALS Let us first start with a short background story on material screening, which isn’t as new of a process as one could think. The screening or sieving, or winnowing was used by ancient cultures for the cleaning of cereals, separating the grain from the … Continued
29 December 2020

How to optimize recycling in Africa & Middle East

ECOSTAR DYNAMIC DISC SCREENING TECHNOLOGY Many challenges affect the system of solid waste management (SWM) in Africa & the Middle East, starting from the source of waste generation. First, the general perception of households in the Region towards waste is that of indifference, apathy, or powerlessness, citizens thinking that waste sorting at home would not … Continued
27 October 2020