Uniform Plasticization & Long-Life JLY-SJ Extruder Series | 38CrMoALA Screw

Uniform Plasticization & Long-Life JLY-SJ Extruder Series | 38CrMoALA Screw

Uniform Plasticization Extruder | Long-Life JLY-SJ Extruder Series

Meta Description: JLY-SJ extruder series with split-flow screw design for uniform plasticization, 38CrMoALA nitrided screw (≥HV870) and hard-tooth gearbox for long service life. 200-1200kg/h, factory-direct.

Keywords: uniform plasticization extruder, split-flow screw extruder, durable extruder, 38CrMoALA screw extruder, long life plastic extruder, insulating sheath extruder, cable insulation extrusion line

Product Description: For cable and plastic manufacturers where product quality and equipment longevity come first, the JLY-SJ Series delivers uniform plasticization and dependable durability. The extruder adopts a split-flow screw specially adapted to the processing of insulating sheaths, ensuring even melt quality and consistent finished products. The screw and barrel are made of 38CrMoALA alloy steel, nitrided to a surface hardness of ≥HV870 with a case depth of 0.5-0.7mm, giving excellent corrosion and wear resistance for years of reliable service. A hard-tooth surface reducer — cast ductile iron box body, 20CrMnTi nitrided gears and a 40Cr transmission shaft — provides high load capacity and quiet operation even under continuous heavy use.

Key Features:

1. Split-Flow Screw Design – Optimized for insulating sheath processing with uniform plasticization and consistent melt quality.
2. 38CrMoALA Nitrided Screw & Barrel – ≥HV870 hardness with 0.5-0.7mm case depth for outstanding wear and corrosion resistance.
3. Hard-Tooth Surface Reducer – Ductile iron box body, 20CrMnTi nitrided gears, 40Cr shaft for high load capacity and low noise.
4. 27:1 L/D Ratio Across All Models – Proven screw geometry for stable, repeatable extrusion.
5. Reinforced Huff Clamping Head – Convenient and reliable machine head mounting for quick, safe die changes.
6. ±2°C PID Temperature Control – Precise thermal management across the whole barrel for defect-free output.

Applications:

1. Cable & Wire Insulation – PVC, PE and XLPE insulation layers with uniform thickness.
2. Cable Sheathing – Durable protective jackets for power and communication cables.
3. Insulating Sheath Processing – Split-flow screw design ideal for sheath applications.
4. Plastic Film, Sheet & Tape – Uniform plasticization for flat plastic products.

FAQ:

1. Why does the JLY-SJ use a split-flow screw? The split-flow screw adapts to the processing of insulating sheaths, ensuring uniform plasticization and consistent product quality.

2. What is the screw and barrel made of? They are made of 38CrMoALA alloy steel, nitrided to ≥HV870 surface hardness with a 0.5-0.7mm case depth for corrosion and wear resistance.

3. What is the advantage of the hard-tooth reduction gearbox? Its ductile iron box body, 20CrMnTi nitrided gears and 40Cr transmission shaft provide high load capacity, quiet operation and long service life.

4. What temperature accuracy does the extruder achieve? The PID microcomputer touch control system achieves ±2°C steady-state accuracy at up to 300°C.

Contact: Email: sales@jinlongyingcn.com | Tel: +86-18875695777