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Conical Twin Screw Barrel
The conical twin screw barrel from Ningbo Cowell Industry Co., Ltd. is engineered for high-precision polymer processing, featuring screw diameters from 35mm to 200mm and lengths under 10000mm, matched by barrels of the same diameter range. It is machined from grades such as 38CrMoAlA, SKD61, SKD11, 40Cr, 42CrMo and other high-alloy steels, with surface treatments including nitriding, alloy coating spraying, heat-treatment and quenching to extend wear life in abrasive or high-temperature applications.
Material selection is tailored to the polymer: 38CrMoAlA and 42CrMo are typical choices for general-purpose resins, while SKD61 and SKD11 alloys are standard for processing engineering plastics like PA, EVA, EAA and PC where higher hardness and heat resistance are required. The conical design allows for consistent compression and melting of the polymer, reducing shear and improving output stability compared to parallel twin-screw configurations.
These barrels are used in extrusion lines for compounding, recycling and direct extrusion of thermoplastics, particularly where precise temperature control and uniform melt delivery are critical. Buyers in the plastic processing industry specify these components for applications such as profile extrusion, sheet production and masterbatch manufacturing. Sourcing terms, including MOQ, lead time and Incoterms, should be confirmed directly with Ningbo Cowell Industry Co., Ltd. to align with production schedules.
| Screw Diameter Range | 35mm - 200mm |
| Barrel Diameter Range | 35mm - 200mm |
| Maximum Length | < 10000mm |
| Material Grades | 38CrMoAlA, SKD61, SKD11, 40Cr, 42CrMo, high-alloy steel |
| Surface Treatment | Nitriding, alloy coating spraying, heat-treatment, quenching |
| Typical Hardness (After Treatment) | 58 - 62 HRC (typical for SKD61/SKD11) |
| Typical Roughness (Internal Bore) | Ra 0.4 - 0.8 µm (standard after polishing) |
| Suitable Polymers | PA, EVA, EAA, PC, PE, PP |
| Design Type | Conical twin-screw |
| Typical L/D Ratio | 20:1 - 40:1 (standard for extrusion applications) |
Ningbo Cowell Industry Co., Ltd. is based in Ningbo, Zhejiang Province, China, with its registered address at No.908 Liyuan Road 668. The company operates as a specialist in precision machined components for polymer processing equipment, including screws, barrels and auxiliary machinery parts. Its location in a major manufacturing hub supports access to raw materials and logistics networks for export.
The supplier holds a harbor trust tier, indicating verified business registration and operational presence. However, its response rate and average response hours are currently unrecorded, which buyers should consider when planning inquiries. Ningbo Cowell Industry Co., Ltd. focuses on providing engineered solutions for the plastics industry, with no additional claims about headcount, revenue or client base provided in its profile.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | Contact Supplier |
| Response Rate | New Supplier |
Sourcing Conical Twin Screw Barrel from Ningbo Cowell Industry Co., Ltd. - China Import Guide
Before ordering, verify the exact material grade and surface treatment specifications to ensure compatibility with your polymer and processing conditions. Request third-party inspection reports or mill certificates for critical components, as these confirm the mechanical properties and heat-treatment standards applied to the barrel and screw.
Confirm logistics details such as packaging, Incoterms (e.g., FOB Ningbo) and lead time, which can vary based on the supplier’s production schedule. For conical twin screw barrels, lead times may extend to 60-90 days for custom diameters or material grades, so plan accordingly to avoid production delays.
Quality checks should include dimensional inspection of the screw and barrel diameters, hardness testing of the treated surfaces and visual examination for defects such as cracks or improper coating. Request a pre-shipment inspection report and ensure the supplier provides a conformity certificate that includes the L/D ratio, material grade and surface roughness values.
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30 suppliersBuy Conical Twin Screw Barrel in Bulk — Supplier in China
When sourcing Conical Twin Screw Barrel for your business, securing the right balance of quality and cost is essential. Ningbo Cowell Industry Co., Ltd., a supplier based in China, offers this product for international export. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $300/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is a staple in the Nuts sector with strong demand from importing countries worldwide.
Conical Twin Screw Barrel Specifications, Trade Terms & Pricing
Importing Conical Twin Screw Barrel requires careful attention to shipping logistics, customs compliance, and secure payment terms. Ningbo Cowell Industry Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading global B2B marketplace designed to make cross-border trade secure and efficient.
About Ningbo Cowell Industry Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. Ask the supplier of this Conical Twin Screw Barrel for business registration and quality documents before ordering. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of manufacturers and exporters across 200+ countries. Explore similar products in the Nuts category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Import Conical Twin Screw Barrel — Shipping, Logistics & Customs
Importing Conical Twin Screw Barrel requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Conical Twin Screw Barrel
What is the wholesale price of Conical Twin Screw Barrel?
The current listed wholesale price for Conical Twin Screw Barrel from Ningbo Cowell Industry Co., Ltd. is $300/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Ningbo Cowell Industry Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Conical Twin Screw Barrel?
The supplier, Ningbo Cowell Industry Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Conical Twin Screw Barrel. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Conical Twin Screw Barrel?
The HS Code classification for Conical Twin Screw Barrel depends on the specific grade and form. Contact Ningbo Cowell Industry Co., Ltd. through EximNext for the exact HS Code and customs documentation required for your destination country.
How can I import Conical Twin Screw Barrel from China?
To import Conical Twin Screw Barrel from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Ningbo Cowell Industry Co., Ltd.. Ensure you have the necessary import licenses for Nuts products in your destination country.
How can I check Ningbo Cowell Industry Co., Ltd. before ordering?
Open the Ningbo Cowell Industry Co., Ltd. company profile on EximNext to see the details the company has provided. Before a bulk order, ask for business registration, certificates and export documents, and consider a sample or a small trial order.
What are the key specifications of Conical Twin Screw Barrel?
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Ningbo Cowell Industry Co., Ltd. through EximNext.
What packaging options are available for bulk orders of Conical Twin Screw Barrel?
Ningbo Cowell Industry Co., Ltd. offers Conical Twin Screw Barrel with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Conical Twin Screw Barrel the most?
Conical Twin Screw Barrel is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Ningbo Cowell Industry Co., Ltd. through our platform.
What certifications does this Conical Twin Screw Barrel supplier hold?
Ningbo Cowell Industry Co., Ltd. maintains international quality certifications. These ensure that the Conical Twin Screw Barrel meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Conical Twin Screw Barrel on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Ningbo Cowell Industry Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Ningbo Cowell Industry Co., Ltd..
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