Silicone extruder output range: extruded stranded wire cores from 1.0 to 6.0 mm, and extruded outer diameters from 2.3 to 15.0 mm.

1. Preparations Before Powering On

1.1 Inspect all components of the machine for any abnormalities, check that fasteners are securely tightened, and verify that there are no leaks in the piping system.

1.2 The transmission shall be filled with filtered lubricating oil, and the oil level shall correspond to the mark on the oil dipstick; all lubrication points shall be greased.

1.3 Prepare the fixtures and tools;

1.4 According to the production task order issued by the machine, move the masticated rubber to the feeding port; after verifying that the wire core meets specifications, place it on the pay-off rack.

1.5 Select and install the appropriate die sleeve and die core.

2. Start up the silicone extruder

2.1 Start the baking oven and set the temperature rise according to process requirements.

2.2 Start the heater and set the temperature rise according to process requirements.

2.3 Before formal startup, check whether there are any periodic knocking sounds or other abnormal noises during operation, and whether the screw and bushing exhibit any signs of scoring or seizing.

2.4 Thread the conductor through the die core and connect it to the lead wire; pass the lead wire through the heating sleeve, the spark tester, and the powder box, then wind it around the traction wheel.

3–4 turns, then secure the lead wire to the take-up reel.

2.5 Mold Alignment: Start the screw, slowly turn the speed‑control potentiometer, and once the compound has been extruded, proceed with mold alignment. Adjust the die by turning the large bolt on the die head. After the initial adjustment, extrude a short length of cable; once you have marked the identification direction on the cable surface, check for core misalignment. Once the die is properly adjusted, resume normal production.

2.6 During normal production, monitor equipment operation and product quality; regularly measure the outer diameter and inspect the surface. The cable surface shall be smooth, uniformly colored, free from mechanical damage, and exhibit no obvious bamboo‑joint‑like irregularities or visible impurities.

2.7 After extruding a cable reel or reaching the specified length, re‑inspect the cable’s thickness and surface condition. Ensure there is adequate clearance between the outer layer of each reel and the side panels, and affix a process‑control card to every reel while maintaining proper records.

2.8 During operation, if any abnormal phenomena or unusual noises occur, stop the machine for inspection and repair, or notify the relevant department.

3. Shutdown Procedures and Precautions for Silicone Extruders

3.1 Sequentially disconnect the power supplies to the traction system, the main unit, and other components; dismantle the die head; remove all rubber material; and ensure that the screw is completely cleared of rubber before reassembly to prevent corrosion of the machine parts. Finally, switch off the main power supply.

3.2 After removing the rubber compound from the lower die core and die sleeve, wipe them clean, apply lubricant, and affix a label indicating the hole diameter; care should be taken to prevent the die core opening and the die sleeve opening from colliding.

3.3 Prevent metals and other hard objects from entering the barrel to avoid damaging the screw.

3.4 After shutdown, be sure to close the feed port cover.

3.5 Maintain focused attention when starting up to prevent accidents.

Hebei Shuangda Rubber and Plastics Machinery Co., Ltd. is a modern enterprise integrating research and development, manufacturing, and sales of complete sets of extrusion equipment for rubber, silicone, and plastics. The company’s main products include rubber extruders, rubber hose extrusion lines, three‑layer composite sealing strip extrusion lines, silicone sealing strip production lines, plastic sealing strip production lines, plastic profile production lines, plastic pipe production lines, elastomer extruders, and other extrusion equipment, as well as production machinery for engineering seals, automotive seals, wire and cable applications, air‑conditioning hoses, braided hoses, automotive hoses, waterstop strips, and related products.