In the waste plastics granulation process, there are two most commonly used pelletizing methods. One is to cool the extruded plastic strips in a water tank and then cut them into pellets with the roller cutters of the plastic pelleting cutting machine; the other is to use a water ring die face cutter. Due to the advantages of the water ring pelletizer system, water ring pelletizer is more and more favored by practitioners in the plastic recycling and processing industry. The plastic pellets cut out by the die face cutter machine are round, uniform, and beautiful in appearance. Also, the water ring pelletizing system saves site area and labor cost and makes has less waste compared with traditional pellet cutter machines.

What is PP PE plastic water ring pelletizer?

塑料水环造粒机是一种用于塑料造粒生产线的设备，适用于大多数热塑性塑料的造粒。模具面造粒系统是指废弃的PP塑料或PE塑料在从模具表面出来时立即被切割成颗粒。由于塑料材料在高温下被切割成颗粒，模具面切割机也是一种急切切割的形式。生产的塑料颗粒被抛入高速旋转的水流中，然后送入脱水设备。

阅读更多：

• PP HDPE LDPE film granules making machine
• Plastic film bag pelletizing recycling line
• Granulating line for rigid plastic scraps

Applicable materials

模具面塑料切割机适用于PP薄膜、PP编织袋、PP吨袋材料、PE薄膜、PP/PE破碎材料。

Why need a water ring pelletizer system in plastic recycling line?

• Smooth and uniform plastic pellets. The die face cutting recycling machine adopts the hot-cut water-cooling method, and the plastic granules are smooth and round, in uniform shapes without pores. Uniform particles bring a lot of convenience to the quality of production and processing of subsequent products and the control of cost and expense;

• Adjustable granules sizes. Since the motor of die face cutter extruder adopts frequency conversion speed regulation, the pelletizing speed can be adjusted, so the particle size can be adjusted by adjusting the speed of the cutter to meet customer requirements.

• Space-saving. In the use of the water ring pelletizer, it does not need a cooling water tank as used in traditional cutting process, so the floor area is small, which saves space.

• Continuous operation and labor-saving. The water ring pelletizing system is usually used in conjunction with the quick screen changer. There is no problem of broken strips when changing the screen, and it does not affect the subsequent pelletizing, so the generation of waste and the labor cost of workers is also reduced.

• Easy operation and low operaton cost. The water ring die face cutter has a compact design, low operating cost and simple start-up procedure.

• High production efficiency. The water ring die face cutter has various output for options, 100-1000kg/h.

Composition of the water ring pelletizing machine

水环造粒机主要包括水环造粒模具、造粒系统、水环造粒罩、加热器、水泵、变频器、循环冷却池。该机器可以与脱水机配合使用。模头由模具钢制成，其他部件则由不锈钢制成。可以根据客户要求定制各种水环造粒系统。

Video of die face cutting recycling machine

Water ring pelletizer operation process

从塑料挤出机的排出模头挤出的长条在离开模具后立即被旋转切割头切割。塑料颗粒被抛入附着在造粒盖上的内腔进行高速操作，并通过水初步冷却。然后，水流将塑料颗粒送入干燥机，随后送入材料冷却设备。这样，塑料颗粒就完成了。

在水环造粒系统中用于冷却和运输的水不与模头接触。由于在模具周围形成了水环，模具与冷却水不接触。这个特性确保了模具温度的均匀性，因此即使产量较低，模头的排出仍然正常。旋转刀具切割熔融丝，并在离心力的作用下将热熔融颗粒抛入循环水中。水流将颗粒带出造粒罩。