Plastic Granulator Blade

1.General plastics such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), etc. require continuous granulation through rolling cutters or flat knives, with high requirements for particle uniformity.

2.Engineering plastics such as ABS, polycarbonate (PC), nylon (PA), etc., due to their high hardness, require the use of combination blades or alloy embedded blades to improve cutting accuracy and wear resistance.

3.High temperature materials: such as polyetheretherketone (PEEK) or hot melt adhesive, require blade materials suitable for high temperature conditions (such as hard alloys) and cooling systems.

4.Recycling material processing: For waste plastics containing impurities (such as films and pipes), they need to be pre crushed by a strong crusher blade before granulation.

5.Dry cutting: Suitable for materials such as polyvinyl chloride (PVC) that require rapid prototyping. The blade can directly cut and extrude strip materials without the need for water cooling.

6.Wet cutting: Used in conjunction with a cooling water system for high-temperature or viscous materials (such as rubber and hot melt adhesive) to reduce knife sticking.

7.Packaging industry: When producing plastic packaging particles (such as PE film raw materials), it is required that the particle size be uniform and the surface be smooth.

8.Electronic appliances: Precision plastic parts (such as phone cases and connectors) require high-purity particles and use combination blades to reduce dust pollution.

9.Automotive parts: For granulation of engineering plastics (such as PA66), wear-resistant blades are required to ensure long-term stability.

10.Medical industry: Medical grade plastics (such as PP and PE) require clean and pollution-free particles, and require specialized blades and rust prevention treatment.

PE/PP film recycling granulation: Continuous granulation of waste film is carried out using flat knives or rolling cutters, with particle diameters controlled between 3-5mm, for the production of recycled packaging materials.

ABS electronic waste re granulation: A combined blade (main blade+auxiliary blade) is used for secondary precision cutting of the crushed ABS shell, with a particle accuracy of ± 0.2mm, meeting the raw material requirements for injection molded parts.

PVC pipe dry cutting granulation: using a rolling blade to directly cut extruded material strips, the particle length can be adjusted to 2-4mm, suitable for the production of plastic products for construction.

By adapting the blade shape and granulation process, the particle quality can be significantly improved and energy consumption can be reduced.

1.Daily maintenance

Cleaning: Use a high-pressure air gun to clean the plastic residue on the surface of the blade every shift to prevent adhesion and affect cutting accuracy.

Lubrication: Add lithium based grease to bearings and gears every 50 hours to reduce the risk of wear.

2.Replacement cycle

High speed steel blade: 150-300 hours (depending on plastic hardness);

Hard alloy blade: 800-1200 hours (avoid mixing metal impurities).

Plastic granulator blades need to be selected comprehensively based on the type of plastic (universal plastic/high viscosity recycled material), operating intensity (intermittent/continuous), and cost budget.