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The PALLTRUDER®

 

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The Palltruder ®

Production of Free Flowing, High Quality Wood Plastic and Natural Fiber Composite Granules for the WPC Industry

For the production of compounds from thermoplastics and rubber with fillers of any  kind in different mixing ratios, PALLMANN has developed the Palltruder®.

Plastic powders, film, fibers and foam as wells as rubber granules or powder with inorganic or organic fillers in powder or fiber form such as limestone, talc, wood flour, cellulose powder, paper, leather, textiles, sugar cane bagasse, cotton sticks, rice hulls, etc, can be processed into free flowing homogenous granules with the Palltruder®.

The Palltrusion™ Process

The developed Palltrusion™-process is based on the gentle preparation and drying of the feed materials by means of frictional heat. Palltrusion™ is more efficient in comparison to any conventional processes for WPC granule production to date. 

More efficient and more effective than conventional granulating

During the production of the raw material, unnecessary intermediate steps can be eliminated. Furthermore, Pallwood®  with a moisture content below 1 percent, is very well suited to directly produce high quality parts in further processes – thereby increasing the discharge capacity of an extruder by up to 50 percent.

The system persuades through its high throughput rate at low operating costs, low space requirement and energy consumption and therewith insures, according to the PALLMANN philosophy, a quick "return on investment“.

By simply exchanging the die, with this unique process, desired Pallwood® recipes and therewith the optimum basic material for further processing can be produced.

Method of Operation

The Palltruder®, Simple in Function and Operation

The feed materials, wood, plastics and additives are continuously fed into the Palltruder® via a gravimetrical dosing system. The type of plastic- and wood flour, as well as their moisture content – maximum 8 percent – and the corresponding mixing ratio are decisive for the throughput rate to be achieved. The material mixture is equally plastified with frictional heat and pressure. Resulting steam is vacuumed off. The palltruded material is pneumatically transported into a granulator which produces a homogeneous and uniform granule. Pallwood® can be instantly processed further or, depending on the requirement, be conveyed to an intermediate bin in front of the production machine. The Palltruder® can be easily adjusted to any customer requirement in no time at all.

With the Palltruder® Pallmann presents a world novelty to produce dry, homogeneous and free-flowing granules with high bulk density from thermoplastics and natural raw materials–Pallwood®.

The Process

  1. Continuous feeding of the materials wood, plastics and additives by means of a gravimetrical dosing unit

  2. Material mixture is equally plastified by means of frictional heat and pressure

  3. Steam is vacuumed off

  4. The palltruded material (Pallwood®) is pneumatically conveyed into a granulator which produces homogeneous and equal size granules

  5. Pallwood® can either be further processed right away, or can be conveyed into an intermediate bin in front of the production machine, depending on the requirement.

Advantages & Features

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Pallwood® is excellent for use in all important manufacturing processes during the production of WPC parts; extrusion- and injection molding as well as in Thermofix®-processing

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Dry material is instantly ready for further processing a 20-50% increase of capacity is possible with the extruder

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High throughput rate

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Low energy consumption

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Low operating costs

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Change of materials simply by changing the die

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Continuous operation process

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Low space requirement

Technical Specifications

Type

PFV

250

400

600

Main Drive

kW

75-90 132-250 400-500

Cooling Water

l/h

300-500 500-700 1,000-1,400

Throughput rate*

kg/h

200-500 500-1,200 800-2,000

Weight

kg 6,400 9,500 1,300

Length

mm 6,400 6,600 8,100

Depth

mm 3,200 3,900 5,100

Height

mm 5,600 6,100 6,500

* Throughput Rates illustrated above, which have been achieved during tests, serve as guidelines only.  To establish exact performance data with your material, in continuous operation, trials can be performed at our Research and Technology Center.

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© 2009 PALLMANN Industries, Inc.
PALLMANN Industries, Inc.
36 Atlantic Way, Clifton, New Jersey 07012 - USA
Phone: (973) 471-1450 - Fax: (973) 471-7152
Email: info@PallmannIndustries.com