faq
CHENGDU CONLIN MACHINERY CO., LTD (CONLIN) is a direct source factory located in Chengdu, China. We handle raw material sourcing, CNC machining, heat treatment, profile grinding, and final quality inspection entirely in our own workshop.
We select metallurgy based on your specific processing environment. Our materials include M2 high-speed steel (W6Mo5Cr4V2), premium tool steels, bimetallic liners, and imported powder metallurgy (PM) HIP sintered alloys designed for heavy wear from glass fibers or mineral fillers.
Yes. We offer comprehensive reverse-engineering services. You can ship worn or sample parts to our plant, and our technical team will measure pitch, profile, spline, and key dimensions using CMM tools to build accurate CAD drawings for production.
Yes. We support custom manufacturing based on your CAD prints as well as ODM modifications. If you require special screw stacking sequences or altered element angles to solve mixing or melt temperature issues, our team can customize the design for your process.
We maintain flexible MOQs. We accept small orders for single replacement elements or shafts to help plant maintenance teams handle urgent repairs. For regular batch orders or full-set machinery replacement, we offer source-factory volume pricing.
Every production batch undergoes strict quality control. We measure dimensions, pitch clearances, and surface hardness using coordinate measuring machines (CMM) and digital hardness testers. We guarantee that replacement components drop directly into your existing machinery without on-site fitting.
Standard replacement parts usually ship within 2 to 3 weeks after order confirmation, while custom components or large batch orders take 3 to 5 weeks depending on material availability and heat treatment cycles. We ship globally via sea, air, or express courier (DHL/TNT/FedEx) with export packaging.
Intellectual property security is a strict standard at CONLIN. We routinely sign non-disclosure agreements (NDAs) before receiving client drawings, sample parts, or custom compounding formulas. Your technical data and customized profile designs are kept strictly confidential and used solely for your dedicated manufacturing orders.
For corrosive environments where halogen-free flame retardants or fluoropolymers release acidic gases, standard tool steels degrade rapidly. We manufacture screw elements and barrel liners using Nickel-based superalloys (such as Hastelloy equivalents), high-chromium stainless tool steels, and specialized corrosion-resistant bimetallic alloys to ensure long surface integrity.
Screw element seizing usually results from thermal degradation or resin infiltration into shaft splines. We provide thermal expansion and cleaning guidelines for maintenance teams, recommending proper purge compounds, anti-seize high-temp lubricants, and controlled heating procedures to remove stubborn elements without damaging the core shaft splines.
Yes. In addition to barrel bodies and liners, we supply matching cast aluminum, cast copper, and ceramic heater bands, as well as cooling water jacket accessories. These components ensure uniform heat transfer and precise temperature control along each barrel zone during high-temperature extrusion.
Absolutely. For high-volume compounders and machinery maintenance departments, we offer scheduled blanket purchase orders and safety stocking arrangements. We manufacture and hold your frequently replaced screw elements or shafts in our warehouse, releasing shipments on demand so you can maintain zero-inventory maintenance without long lead times.
