Extra suggestions before startup of the extruder

An appropriate use makes the screw extruder function at full efficiency and extend its use life. So it does matter to know how we operate and maintain the extruder in the right way.

Like other machines, an single screw extruder or twin screw extruder owns the commonesses of general machines such as drivng motor, temperature control. But it also has specific requirements on installation, operation and repair. So we strongly recommend a new user should read the instructions first before operating the extruder and if necessary, receive a real training by our engineers.

The operator should know about the extruder, the heater and cooling system, cutting system and the raw material that is being processed. He should know how to stop the machine against an emergency which we never expect.

We have some points which may tend to be ignored before startup of the extruder:

1. Raw plastics or polymer ready for extrusion. The raw material should conform to all the criteria for extruding. These criteria include but not limited to moisture/humidity content, impurities, ultrasized pellet etc. Very importantly, no metal contaminant is allowed for our extruders which will severely wear the extruder screw and barrel or even damage the extruder itself.
2. Water, electricity and air systems. These will keep our single screw extruder and twin screw extruder working in proper condition. In some cases the extruder requires soft water and dried air. The electricity as the power of extruder should be stable without fluctuation. All the sensors including thermocouple and pressure transducer, temperature contoller, vacuum pump are working well.
3. All the motors generate plenty of heat when running. A spacious area with good ventilation system cools the motor and keeps a reliable output.
4. Make sure every part on the extruder is well mounted. After a long transportation some parts like bolts may loosen. So fasten every single bolt and ensure the die head is in line with the extruder.

There are many aspects to cover on this topic. If you need any guidance or troubleshooting, you're welcome to contact us.