Startup procedure of twin-screw extrusion machinery

Startup Procedure of Jinan Datong Twin-Screw Extrusion Machinery Equipment

1. No-Load Debugging of the Twin-Screw Extruder

1. Check whether the main unit's electrical components are damaged or loose.

2. Check the main unit barrel and screws to ensure no foreign objects are inside the barrel.

3. Check the fit between the distribution box and the screw barrel.

4. Check whether the feeder outlet matches the extruder inlet.

5. Check whether the rotating cutter and the die fit tightly.

6. Check whether the lubrication system has sufficient lubrication.

2. After Completing the Power Check

1. Check whether the oil pump button operates normally and whether the lubrication system is functioning properly.

2. Is the main unit button working properly when pressed?

3. Is the feeding button working properly when pressed?

4. Is the rotation button working properly when pressed?

5. Check whether all frequency converters are working properly.

3. Feeding and trial operation

1. Preheat the equipment to stabilize the temperature inside the barrel.

2. After the main engine temperature of the extruder rises to the set temperature, start the oil pump. After adding oil for a period of time, start the main motor. Add 500 ml of water at the feed inlet to facilitate discharge, and simultaneously start the feeder. After normal discharge, gradually increase the main motor speed to around 800 rpm (40 Hz) and meet the working principle requirements of the main motor. Do not allow material accumulation or empty feeding. After feeding, check the main motor current; the main motor current must not exceed 40A.

3. Start the rotary cutter; the rotary cutter frequency converter can adjust the length of the cut material.

4. Before stopping, add about 1 kg of water for cleaning to prevent jamming.

5. When stopping, first stop the feeder. When the mold no longer discharges material, stop the main machine, open the die head, then start the main motor to feed the extruded waste into the main motor inlet and outlet until there is no sticky substance at the outlet, then stop the machine to clean the die head.

The above is an introduction from Jinan Datong Machinery Equipment Co., Ltd. regarding the startup and pre-startup procedures for extruders. Jinan Datong Company supplies various models of twin-screw extruders, single-screw extruders, snack food production lines, feed extruders, etc., directly from the factory all year round. Customers are welcome to inquire and place orders at any time.