Last Updated on August 12, 2022 by hassan abbas
Not all pelletizer designs are the same, so which one is right for your application? What you have today may have been purchased for a completely different app, and may not be the best fit for your needs. Here are some things to consider that can help you decide what’s best for you.
When planning an investment in pelletizing equipment, choosing the right equipment for your application can be a simple task at first that can feel overwhelming once you start asking questions. When you hear buzzwords like low and high speed, you may start to wonder what you really need. They are all the same, right? For the big picture, they all cut things into small pieces.
But what are you really buying?
Think of a pelletizer as a tool, like a drill. When shopping for a drill, your goal is to choose one that will allow you to make a good hole of the desired size in a specific type of material. With a pelletizer, the ultimate goal is to transform your material from its current state into high-quality pellets that allow you to maximize the reuse of this material.
So, where things start to get more complicated, pellet mills are not a one-size-fits-all solution. To better understand this, let’s define what high-quality granular materials really mean.
What are premium pellets?
Particle quality boils down to three main issues:
Cleanliness:
Must be free of dust and fines, which, if separated from particles during air transport, represent lost material; or, if not filtered, can negatively impact processing when reintroduced into an extruder or molding machine. The type of material is also taken into consideration, as brittle materials are more likely to break up during the granulation process and generate fines and dust.
Uniformity:
Consistent particle size results in consistent bulk density and more consistent feed and mixing with the original particles—and more consistent melting in the barrel.
Size:
Selecting the proper granulator screen size helps balance the desired output with the final granule size that is compatible with the granule size of your original feed. No matter what industry you are in as a plastic pelletizing/granulator machine processor, there are always recyclable materials. Whether it’s a runner for an injection molding process, a cutting edge on a sheet metal, or a film extrusion line or a blower for blowing, the material in this shape has value. This does not include non-compliant parts or source material.
The use of granular materials should be viewed as a marketing opportunity and cost control when you consider rising raw material costs, increased demand for price cuts, and the end-user market’s desire to include recycled materials.
Instruction Manual for Plastic Granulator
Plastic granulators require proper maintenance before or during use. The machine has a long use time and good maintenance, which brings more benefits to users.
One: Requirements and precautions for clothes
- Wear work clothes, masks, safety glasses and gloves when working.
- When feeding the material into the granulator, squeeze carefully with your hands.
- Do not reach into the battery compartment while running.
- Do not open the output hopper during operation.
Two: Cleaning before use and after shutdown
Unplug the power supply of the plastic granulator before checking.
Open the cover of the plastic granulator, use a brush to clean the impurities inside the granulator, and then thoroughly clean it with compressed air to ensure that there are no impurities in the granulator.
Three: Pre-check
- Check before unplug.
- Open the cover of the plastic granulator and the fixed blade housing, manually drive the blade in its own direction, and check the bearing of the movable blade, the lubrication between the gears, the clearance of the movable blade, and the elasticity of the V-belt.
- Check whether the hob is damaged and the rubber roller is in good condition.
- Close the casing of the fixed cutter and the cover of the plastic granulator, turn on the power supply, check the rotation of all electrical components and the granulator, and then adjust the plastic granulator to the forward rotation direction.
- Check that the wire connection screws are tight. Make sure all parts of the plastic granulator are in good condition before starting. Equipment repairs should be carried out after a failure report has been sent to the equipment supervisor.
Four: Operation steps
- The plastic granulator can be cleaned after inspection.
- Start the plastic pelletizer, start the motor first, and then start the cutter carefully.
- Start the plastic pelletizer at low speed for 2 minutes while ensuring normal operation.
- Pull the extruded material into the plastic granulator and process it into granules, the granule thickness is between 2-4mm
- Adjust the speed of the plastic pelletizer according to the process to match the speed of the plastic pelletizer and extrusion.
- When the job is done, evacuate the material and reduce the cutter speed until it stops. Then turn off the motor.
- Clean up the working environment around the plastic granulator in time.
