Sub-categories
High Efficiency Single screw extruder
Comparing with traditional single screw extruder, newly TDD series single screw extruder has dramatically improved in higher capacity, lower specific energy consumption. The main improvements are following:
► Lower specific energy consumption; energy saving could be up to 30% plus.
► Higher capacity: the capacity could be 50% more at the same diameter
► Higher efficiency in plastication.
► Better mixing effect: it is comparable with normal twin screw extruder
► More accuracy in extrusion processing control.
► More flexible processing range; it can be used for recycling, pelletizing, pipe, profile, board/sheet/film extrusion.
TDD series extruders are divided into the followed four sub-models according to different applications.
Main features of TDD-A include smooth feeding barrels, typical screw profile. Mostly, some mixing sections are designed for the metering section to get better mixing and homogenization. The standard L/D is designed to 30. Presently, our maxium standard extruder is TDD250A to be appied in BOPP film extrusion line with output 5000kg/hr.
This series extruders are mainly purposed for the polymers that requre venting or vacuum extraction during extrusion process. Typical applicaitons include recycling extrusion and product extrusion, mostly for PET, PA, ABS, PC, PA.
With grooved barrel in the feeding section and also the barrier screw profile, TDD-K series extruders could approach very high output and with lower melt temperature. This series extruders are mainly applied for polyolefin or dried engineering plastics to extrude films, sheets, plates, pipes or profiles. Same diameter extruder could get more than 2 times output with such design. However, the maxium diameter is limited to 180mm.
In some cases, like foam extrusion process and heat sensitive mateiral compounding process, and even for some BOPP/BOPET extrusion process, melt cooling extruders are necesary for strict elt temperature controll. USEON is going to manufacture one TDD400R cooling extruder for XPS extrusion process to get 1000kg/hr output.
