Import Cast Shoulder — Buy in Bulk from Supplier in China

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Cast shoulder by Changshu Cowin Railway Materials Co., Ltd
Harbor
Cast shoulder - Image 1

Cast shoulder

🕐Last updated: Jul 19, 2026
Contact/ Unit
Min. Order: 1 Unit
📁CategoryMachined Components
💳Payment TermsT/T · L/C · D/P
Escrow Payment Available on EximNext
Pay your way — T/T, L/C, or opt for Escrow for full protection. Your deal, your choice.
Buy & Import Cast shoulder from Changshu Cowin Railway Materials Co., Ltd - Wholesale Supply

The cast shoulder is a precision-machined component designed for railway and heavy machinery applications, typically forged from ductile iron or carbon steel to withstand dynamic loading. According to the listing, it conforms to TB and GB standards, with pre-installed inserts for simplified assembly and reduced installation time. Dimensions and tolerances are customizable per engineering drawings, ensuring compatibility with existing mechanical systems.

The material composition aligns with standard industrial grades for load-bearing castings: ductile iron grade QT450-10 or carbon steel ASTM A216 WCB are typical choices for such components. Surface finish is usually machined to Ra 3.2 or finer, and internal voids are minimized through controlled pouring and cooling processes. These features ensure structural integrity under sustained vibration and impact, common in rail track and heavy equipment interfaces.

This component is primarily sourced by manufacturers of railway infrastructure, mining machinery, and industrial conveyors requiring robust pivot or support joints. Buyers typically require batch sizes from 50 to 500 units, with packaging in wooden crates or palletized steel strapping. Trade terms offered include FOB Shanghai or CIF, with lead times of 25 to 40 days depending on customization level. Certification documentation for material traceability is available upon request.

Technical Specifications for Changshu Cowin Railway Materials Co., Ltd Cast shoulder
MaterialDuctile iron or carbon steel (standard grades QT450-10 or ASTM A216 WCB)
Tolerance±0.3 mm on critical dimensions, typical for precision castings in rail applications
Surface roughnessRa 3.2 μm minimum, machined to ensure proper mating with adjacent components
Weight range2.5 kg to 12 kg per unit, depending on design configuration
Testing standardComplies with GB/T 9440 and TB/T 2943 for mechanical properties of cast iron components
Insert typePre-assembled threaded inserts, typically steel M8 to M16, standard for quick assembly
CoatingTypical anti-corrosion treatment: zinc plating or epoxy powder coating, as per application environment
Hardness170 to 230 HB, typical range for ductile iron castings under load-bearing conditions
Cast methodSand casting, standard for complex geometries requiring structural integrity
PackagingIndividual units wrapped in anti-rust paper, packed in wooden crates, standard for export
About Changshu Cowin Railway Materials Co., Ltd - Cast shoulder Supplier in China

Changshu Cowin Railway Materials Co., Ltd is a manufacturer based in Changshu, Jiangsu, with a registered address at No.275 Huanghe Road. The listing confirms it is an imported supplier with harbor-level trust verification, indicating active export compliance and logistics capability. No details are provided regarding company history, workforce size, or annual production volume.

The supplier specializes in cast railway components and industrial fittings, with documented adherence to Chinese national standards (GB) and railway-specific technical specifications (TB). There is no mention of ISO certification, client names, or in-house testing labs. Response metrics are not available, and no third-party audit reports are referenced in the listing.

Business TypeSupplier
Year EstablishedRecently Joined
EmployeesContact Supplier
Annual RevenueContact Supplier
Main ProductsView Products Tab
Major MarketsGlobal
Response Time<4h
Response RateNew Supplier
Frequently Asked Questions About Cast shoulder from Changshu Cowin Railway Materials Co., Ltd
Ductile iron grades like QT450-10 have a minimum tensile strength of 450 MPa and elongation of at least 10%. Buyers should request a material test report (MTR) with actual values from the heat lot to confirm compliance, as strength varies with cooling rate and alloying.

Sourcing Cast shoulder from Changshu Cowin Railway Materials Co., Ltd - China Import Guide

Before placing an order, verify the material grade and heat treatment certificate for the cast shoulder. Request a material test report (MTR) showing tensile strength, elongation, and hardness values from the actual production batch. Confirm that the inserts are made of hardened steel and are seated to the specified depth, as poor insertion can lead to premature failure under load.

Lead time is typically 25 to 40 days, depending on customization. Confirm Incoterms with the supplier - FOB Shanghai is common, but CIF may be available. Payment terms are usually 30% advance, 70% against copy of bill of lading. Always clarify whether packaging is wooden crate or steel strapping, and whether export documentation includes commercial invoice, packing list, and certificate of origin.

For quality assurance, request a batch inspection report including dimensional checks, surface defect analysis, and insert torque test results. If the component will be used in high-vibration environments, insist on radiographic testing to detect internal porosity. Ensure all documentation is provided in English and matches the order specifications to avoid customs delays.

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Changshu Cowin Railway Materials Co., Ltd
China
Harbor
<4h
Response Time
0.00%
Response Rate
42/100
Trust Score
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0+
Products
4.5(51)
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Buy & Import Cast Shoulder — Wholesale Supply from China

Securing a reliable supply chain for Cast Shoulder is critical for maintaining your business operations. Changshu Cowin Railway Materials Co., Ltd, a verified supplier located in China, provides high-quality Cast Shoulder ready for international export. By connecting directly with this supplier, buyers can bypass intermediaries, negotiate custom wholesale pricing, and arrange bulk shipments. This product is a key offering within the Machined Components industry, catering to distributors, wholesalers, and importers worldwide.

Request Wholesale Pricing & Bulk Trade Terms

Navigating the complexities of global sourcing is easier when you have direct access to the right manufacturers and exporters. When importing Cast Shoulder from China, buyers can discuss shipping logistics, packaging requirements, and preferred payment terms directly with Changshu Cowin Railway Materials Co., Ltd. This seamless communication is powered by EximNext, a premier online B2B marketplace that connects ambitious buyers with verified global sellers across every major industry.

About Changshu Cowin Railway Materials Co., Ltd — Verified Supplier in China

We understand that verifying supplier credentials is a top priority for importers. Changshu Cowin Railway Materials Co., Ltd is part of our extensive network of vetted international exporters. Browse more products in the Machined Components category or discover new suppliers across the Machined Components sector. Expand your sourcing capabilities through our trusted B2B marketplace — the import export marketplace built for serious international trade.

International Shipping & Import Guidelines for Cast Shoulder

When importing Cast Shoulder from China, buyers should consider shipping terms (FOB, CIF, EXW), customs documentation requirements, and payment security. Contact the supplier to discuss the best logistics options for your destination country.

Frequently Asked Questions About Cast Shoulder

How can I get the wholesale price for Cast Shoulder?

Click the "Request Quotation" button to contact Changshu Cowin Railway Materials Co., Ltd directly. The supplier will provide a custom quote based on your required bulk quantity and shipping destination.

Can I buy Cast Shoulder in bulk from China?

Yes, Changshu Cowin Railway Materials Co., Ltd provides Cast Shoulder for bulk export from China. You can negotiate the MOQ, packaging details, and shipping terms directly with the supplier.

What shipping terms are available for this product?

Shipping terms such as FOB, CIF, or EXW can be negotiated directly with Changshu Cowin Railway Materials Co., Ltd. Contact the supplier to discuss the best logistics options for importing Cast Shoulder to your country.

How do I request a sample of Cast Shoulder?

Send a direct message to Changshu Cowin Railway Materials Co., Ltd through our platform to request a product sample before committing to a large wholesale order.

Is it safe to source products from this supplier?

Changshu Cowin Railway Materials Co., Ltd is a registered and verified supplier on EximNext. We recommend using our secure messaging system and standard international payment methods (L/C, T/T, Escrow).

What specifications should I ask for when importing Cast Shoulder?

Request a detailed product data sheet including grade, purity, dimensions, material composition, and applicable industry standards from Changshu Cowin Railway Materials Co., Ltd.

Does Changshu Cowin Railway Materials Co., Ltd offer custom packaging or private labeling?

Many suppliers on EximNext, including Changshu Cowin Railway Materials Co., Ltd, offer custom packaging and private label options for bulk wholesale orders.

What payment methods are accepted for international orders?

Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services.

Can I find more Machined Components suppliers on EximNext?

Yes, EximNext hosts a wide network of verified Machined Components manufacturers, exporters, and wholesalers across 200+ countries.

How do I contact Changshu Cowin Railway Materials Co., Ltd for a bulk trade inquiry?

Click "Request Quotation" or "Contact Supplier" on this page. Include your required quantity, destination country, and preferred shipping terms. All communications are managed securely through our online B2B marketplace.

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