What is TPU?
TPU (Thermoplastic polyurethanes) is called thermoplastic polyurethane elastomer rubber. TPU is composed of diphenylmethane diisocyanate (MDI) or toluene diisocyanate (TDI) and other diisocyanate molecules and macromolecular polyols, low molecular polyols (chain extenders) ) Polymer materials formed by reaction and polymerization together.
Its molecular structure is a rigid block formed by the reaction of diphenylmethane diisocyanate (MDI) or toluene diisocyanate (TDI) with a chain extender and diisocyanates such as diphenylmethane diisocyanate (MDI) or toluene diisocyanate (TDI) The flexible chain segments obtained by the reaction of molecules and macromolecular polyols are alternately formed.
TPU has excellent characteristics of high tension, high tensile strength, toughness and aging resistance, and is a mature environmentally friendly material. At present, TPU has been widely used in medical and health, electronic appliances, industry and sports, etc. It has the characteristics of high strength, good toughness, wear resistance, cold resistance, oil resistance, water resistance, aging resistance, and weather resistance than other plastic materials cannot match. At the same time, it has many excellent functions such as high waterproof and moisture permeability, windproof, coldproof, antibacterial, anti-mildew, warmth, anti-ultraviolet, and energy release.
Thermoplastic polyurethane elastomer TPU can be divided into polyester type and polyether type according to molecular structure and can be divided into injection molding grade, extrusion grade, blow molding grade, etc. according to the processing method.

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Description:
The disc grinding pulverizer machine of the PNMF series is available with disc diameter from 300 to 800 mm. These plastic pulverizer machines are high speed, precision grinders for the processing of medium hard, impact resistant and friable materials. The material to be pulverized is introduced through the centre of a vertically fixed grinding disc which is mounted concentrically with an identical high speed rotating disc. Centrifugal force carries the material through the grinding area and the resulting powder is collected with a blower and cyclone system. Depending on the application the machines can be equipped with one piece grinding discs or grinding segments.
The plastic pulverizer machine is mainly composed of electric motor, disc type blade, feeding fan, vibrating sieve, dust removing system, etc.
According to the customer’s needs, you can choose some accessories, such as converter, vacuum loader, screw loader, magnetic net, metal separator, chiller, pulse dust collector, metering and weighing packaging machine, etc.

Technical Features:
1. The new disc design is of high quality, strong resistance and the life of this grinding disc is double the ordinary ones.
2. The newly designed professional bearings, is with a high rotation rate. At the same time using only one drive motor, ensure an efficient grinding crash, which greatly saves the time of machine operation and engineering control.
3. Easy installation and maintenance, just open the door to clean up.
4. The whole milling process is sealed, without dust leakage.
5. Full automatic design, automatically feeding, discharging and sorting.
6. Grinding gap adjustment is simple, just use the feeler gauge and adjust bolts can be fine tuning.
7. The mill use the water and wind double cooling system, Prevent bearing and other parts from overheating.
8. Using Well-known brand accessories, such as SKF bearings and Siemens motors, can work for a long time, saving the trouble of changing accessories frequently.
9. With a wide range of optional accessories, professional solutions can be developed based on the customer’s budget and processing requirements.