Sold as a set 20mm Dia Extruder Screw, Barrel with 1.75/ 3mm Nozzle and 3PCS 40*40 220V Band Heater
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Sold as a set 20mm Dia Extruder Screw, Barrel with 1.75/ 3mm Nozzle and 3PCS 40*40 220V Band Heater

$275.00
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20mm Dia Single Extruder Screw, 300mm Length Barrel and 1.75mm or 3mm Nozzle for desktop plastic extruders Package contain: 1x20mm screw, 1xBarrel, 1x3mm/1.75mm Nozzle, 3x150W 220V D40L40 Band Heaters, 3x K-Type Thermocouples. Technical Parameters: Maximum rotation speed: 60RPM Maximum heating temperature: 450℃Bimetallic layer depth: 3 mmBimetallic hardness: 57~69HRCHard-chrome plating hardness after nitriding: ≥950HVChrome-plating layer depth: 0.03-0.09mmSurface roughness: Ra 0.4Compression Ratios:  20mm extrusion screw is 2.8 Technical Information: Main Base materials1.38CrMoAlA (SACM645)2.SKD-61 (Special Tool Steel)3.42CrMo (Ultrahigh Strength Steel)4.DC53 (Cold Work Die Steel)5.W6Mo5Cr4V2 (High-Speed Tool Steel)Main Alloy Materials1.Ni-based alloy/Deloro alloy2.Tungsten carbide/Wolfram carbide3.NiCo-based alloy4.Fe-based alloy5.Co-based alloyProcessing Techniques1. Heat treatment2. Quenching3. Bimetallic alloy welding for screw4. Bimetallic alloy centrifugal casting for barrel5.

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