{"product_id":"cf8m-stainless-steel-single-screw-pump-rotor-precision-casting","title":"CF8M Stainless Steel Single Screw Pump Rotor Precision Casting","description":"\u003ch2\u003eCF8M Stainless Steel Single Screw Pump Rotor Precision Casting\u003c\/h2\u003e\u003cp\u003eIn demanding fluid transfer applications, the rotor is the heart of the screw pump — and its quality determines everything. Our CF8M stainless steel single screw pump rotors are precision cast using the lost-wax investment casting process, delivering the dimensional accuracy, surface integrity, and corrosion resistance required for reliable, long-life operation in chemical, food, pharmaceutical, and marine environments.\u003c\/p\u003e\u003ch2\u003eMaterial Properties\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e CF8M (cast equivalent of AISI 316 \/ 1.4408)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTensile Strength:\u003c\/strong\u003e ≥485 MPa\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYield Strength:\u003c\/strong\u003e ≥170 MPa\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness:\u003c\/strong\u003e ≤217 HB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolybdenum Content:\u003c\/strong\u003e 2–3% — significantly enhances resistance to chloride pitting and crevice corrosion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion Resistance:\u003c\/strong\u003e Excellent resistance to acids, alkalis, chlorides, and process chemicals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e Suitable for cryogenic to 870°C service conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHygienic:\u003c\/strong\u003e Meets requirements for food-grade and pharmaceutical fluid handling\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCasting Process \u0026amp; Quality\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcess:\u003c\/strong\u003e Lost-wax investment casting for precise helical rotor geometry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensional Tolerance:\u003c\/strong\u003e CT4–CT6 per ISO 8062\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface Roughness:\u003c\/strong\u003e Ra 1.6–3.2 μm (post-machining\/polishing available)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix profile accuracy:\u003c\/strong\u003e Tight pitch and lead tolerances for consistent volumetric efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePost-processing options:\u003c\/strong\u003e CNC turning, grinding, hard chrome plating, electropolishing, passivation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality inspection:\u003c\/strong\u003e Dimensional check, surface inspection, dye penetrant testing (PT) available\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior corrosion resistance:\u003c\/strong\u003e CF8M’s molybdenum content provides outstanding protection in chloride-rich and chemically aggressive media\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision helix geometry:\u003c\/strong\u003e Accurate rotor profile ensures tight clearance with stator for optimal volumetric efficiency and minimal slip\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmooth surface finish:\u003c\/strong\u003e Reduces friction, minimizes wear on stator rubber, and improves flow efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh temperature capability:\u003c\/strong\u003e Maintains dimensional stability and mechanical properties across a wide temperature range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow pulsation flow:\u003c\/strong\u003e Precision cast rotor geometry delivers smooth, continuous fluid transfer with minimal pressure fluctuation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom specifications:\u003c\/strong\u003e Rotor diameter, pitch, lead, length, shaft connection, and surface finish per your drawings or samples\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eChemical and petrochemical process pumps\u003c\/li\u003e\n\u003cli\u003eFood and beverage transfer (sauces, dairy, beverages)\u003c\/li\u003e\n\u003cli\u003ePharmaceutical and biotech fluid handling\u003c\/li\u003e\n\u003cli\u003eMarine and offshore fluid systems\u003c\/li\u003e\n\u003cli\u003eWastewater and sludge transfer\u003c\/li\u003e\n\u003cli\u003eOil and gas production and injection systems\u003c\/li\u003e\n\u003cli\u003ePulp and paper processing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCustom Order Process\u003c\/h2\u003e\u003col\u003e\n\u003cli\u003eSubmit your rotor drawing (STEP, DXF, DWG, or PDF) or sample part\u003c\/li\u003e\n\u003cli\u003eReceive detailed quotation within 24–48 hours\u003c\/li\u003e\n\u003cli\u003ePrototype approval before mass production\u003c\/li\u003e\n\u003cli\u003eLead time: typically 15–30 days depending on complexity and quantity\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eReady to discuss your rotor specifications? \u003ca href=\"\/en\/pages\/request-a-quote\"\u003eContact us for a custom quote\u003c\/a\u003e — our engineering team is ready to assist.\u003c\/p\u003e","brand":"xiechun Metal Casting Supplier","offers":[{"title":"Default Title","offer_id":48556521488611,"sku":null,"price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0788\/4816\/4067\/files\/8.png?v=1774612303","url":"https:\/\/www.xiechuncasting.com\/en\/products\/cf8m-stainless-steel-single-screw-pump-rotor-precision-casting","provider":"xiechun Metal Casting Supplier","version":"1.0","type":"link"}