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PKM Pulverizer - PolyGrinder™ for Rotational Molding

Production of the Best PE Quality Powders with the Disc Mill Type PKM

Method of Operation

The ORIGINAL PALLMANN system Type PKM was developed for the pulverization of various types of polyethylene granules such as HDPE, MDPE and LLDPE and other thermoplastics into rotomolding powders.  No only virgin, lentil or cylindrically shaped granules can be successfully pulverized but also recycled material from production waste.

The granule-shaped feed material is placed into a storage bin and fed to the Disc Mill by a vibratory feeder. Pulverization of the feed material takes place between the serrated grinding elements of a stationary and a rotating disc.

The material is sucked out of the mill by a fan and is then conveyed to a cyclone. A rotary air lock discharges the powder onto a special screening machine. Any resulting oversized particles are returned automatically to the mill for pulverization.

The finished powder is bagged or pneumatically conveyed into a powder silo. An all-metal separator, a filter, a granules and powder conveying system as well as laboratory systems can optionally be
offered.

Advantages & Features

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Constant powder quality for highest demands

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Quality powders with excellent characteristics, high bulk density and uniform particle size

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Optimum material distribution even in complicated molds

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Material and weight saving due to uniform wall thickness

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Uniform molding cycles ensure constant quality of the molded parts

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High throughput Capacity at low specific power requirements

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Easy access for maintenance and wear part change

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Technical Specifications

Type

PKM

300

450 600 800

Grinding Diameter

mm

300

450 600 800

Motor

kW

37

55 75 110-132

Total System Power

kW

43

63 87 128-150

Throughput rate *

kg/h

150-200

250-350 450-650 750-1000

* Throughput Rate  may vary depending of the feed material

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