Single Screw Barrel for Rubber Machinery Screw Cylinder

ZHONGYANG SCREW is one of the most history and famous screw barrel brand in China. We have professional and experienced teams in every department of our company. We think professional, quality and service is the basic of business. If you want reliable and helpful screw barrel, we will be your best choice! Please kindly find our detailed information as following: Specification: Screw Diameter for Cold Feeding Screw and Barrel: Φ 40mm-Φ 300mm Screw Diameter for Hot Feeding Screw and Barrel: Φ 30mm-Φ 250mm Screw Diameter for Pin Rubber Screw and Barrel: Φ 50mm-Φ 250mm L/D Ratio: 4-18 Technical information: Base materials: 1)38CrMoAlA (JIS SACM645) 2)42CrMo (AISI 4140) 3)4Cr5MoSi V1 (JIS SKD-61) 4)DC53 (JIS G4404) 5)Cr12MOV (SKD11) 6)9Cr18MOV Bimetallic alloy materials: 1)Ni-based alloy/Deloro alloy 2)Fe-based alloy 3)Co-based alloy 4)NiCo-based alloy 5)Tungsten carbide/Wolfram carbide Processing technics: Heat treatment High-frequency quenching Nitriding treatment Bimetallic alloy welding Bimetallic alloy centrifugal casting Hard-chrome electroplating Technical parameters: Nitriding layer depth: 0.5-0.8mm Nitrided Hardness: 900-1000HV (HRC 55-65) Nitrided brittleness: Less than grade 1 Surface roughness: Ra 0.4 Linearity of screw: 0.015mm Bimetallic layer depth: 3 mm Bimetallic layer hardness: HRC 55-70 Hard-chrome plating hardness after nitriding: ≥ 950HV Chrome-plating layer depth: 0.03-0.1mm Terms and Conditions: Means of transport: Ocean, Air, Express Production time: About 20-30 days after we receive the advanced payment Production Process: Receiving orders - Designing & Drawing confirmation - Blanking Thermal refining - Heat treatment - Rough Turning - Polishing - Drilling for barrel - Semi Finishing Machining - Bimetallic welding - Centrifugal casting for barrel - Polishing - Nitriding treatment(120 hours) or High frequency quenching - Hard-chrome plating - O. D. Grinding - Honing for barrel - Alignment - Polishing - Inspecting - Packing & Shipping ZY SCREW's advantage: First-class designing and researching team; High quality and durable products of screw barrel; Most professional sales who can serve for you timely; Best customer service especially after-sale service; Powerful company's strength support long-term cooperation. Welcome to contact us. /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1